Biography
I am a graduate of Trinity College Dublin Medical school and completed Higher Specialist Training in Gastroenterology with the RCPI. I was awarded an MD from TCD before travelling abroad to complete fellowships in interventional endoscopy in Germany and cancer prevention at the National Institute of Health, USA. I became a Fellow of the Royal College of Physicians of Edinburgh in 2006 and of the Royal College of Physicians of Ireland in 2010.
I was appointed as a Consultant Gastroenterologist at Aberdeen Royal Infirmary in 2004 where I developed additional subspecialty interests in small bowel bleeding and endoscopy. I returned to Trinity College as an Associate Professor of Medicine in 2010 where I founded the TAGG (Trinity Academic Gastroenterology Group) Research Centre and was Head of Department for Clinical Medicine at Tallaght University Hospital from 2012-2014. As the Director of TAGG I lead a highly successful multidisciplinary team of researchers and postgraduate students with interests in small bowel disease, minimally invasive capsule endoscopy and Helicobacter pylori resistance. Clinically, I have helped to develop Tallaght Hospital's national and international reputation as a centre of excellence for small bowel disease and for post graduate training, having been awarded both Aspire RCPI and United European Gastroenterology Training Fellowships.
I have always had an interest in undergraduate medical education and have held formal teaching positions throughout my career. From my initial appointment as a Lecture / Registrar at TCD in 1996 to my current role today I have focused on improving and optimising the design and delivery of clinical medicine teaching.
I am always proud to represent and advocate for Trinity as Past President of the Irish Society of Gastroenterology, Chairperson of the National Clinical Advisory Group & Chairperson of the Irish Helicobacter pylori Consensus Group. I also hold national endoscopy training and colon capsule service roles. International representations include both the European Society of Gastrointestinal Endoscopy and United European Gastroenterology Federation research, quality improvement and executive committees.
Publications and Further Research Outputs
Peer-Reviewed Publications
Sidhu R, Shiha MG, Carretero C, Koulaouzidis A, Dray X, Mussetto A, Keuchel M, Spada C, Despott EJ, Chetcuti Zammit S, McNamara D, Rondonotti E, Sabino J, Ferlitsch M; External Voting Panel., Performance measures for small-bowel endoscopy: a European Society of Gastrointestinal Endoscopy (ESGE) Quality Improvement Initiative - Update 2025, Endoscopy, 57, (4), 2025, p366 - 389
Molloy SD, Butler TJ, Merrigan I, Knight A, Parihar V, Van Der Merwe K, McNamara D, Smith SM, Evaluation of real-time PCR compared to culture for the detection of clarithromycin resistant Helicobacter pylori in the Irish healthcare setting, Microbiota in Health and Disease, 5, (e956), 2023
Spada C, McNamara D, Despott EJ, Adler S, Cash BD, Fernández-Urién I, Ivekovic H, Keuchel M, McAlindon M, Saurin JC, Panter S, Bellisario C, Minozzi S, Senore C, Bennett C, Bretthauer M, Dinis-Ribeiro M, Domagk D, Hassan C, Kaminski MF, Rees CJ, Valori R, Bisschops R, Rutter MD., Performance measures for small-bowel endoscopy: a European Society of Gastrointestinal Endoscopy (ESGE) Quality Improvement Initiative., Endoscopy, 51, 2019, p574 - 598
Spada C, Hassan C, Bellini D, Burling D, Cappello G, Carretero C, Dekker E, Eliakim R, de Haan M, Kaminski MF, Koulaouzidis A, Laghi A, Lefere P, Mang T, Manuel Milluzzo S, Morrin M, McNamara D, Neri E, Pecere S, Pioche M, Plumb A, Rondonotti E, Spaander MCW, Taylor S, Fernandez-Urien I, van Hooft JE, Stoker J, Regg D, Imaging alternatives to colonoscopy: CT colonography and colon capsule. European Society of Gastrointestinal Endoscopy (ESGE) and European Society of Gastrointestinal and Abdominal Radiology (ESGAR) Guideline- Update 2020, Endoscopy, 52, (12), 2020, p1127 - 1141
Holleran G, Hussey M, Smith S, McNamara D, Assessment of serum angiogenic factors as a diagnostic aid for small bowel angiodysplasia in patients with obscure gastrointestinal bleeding and anaemia, World Journal of Gastrointestinal Pathophysiology, 8, (3), 2017, p127 - 132
Tighe D, Hall B, Jeyarajah SK, Smith S, Breslin N, Ryan B, McNamara D., One-Year Clinical Outcomes in an IBD Cohort Who Have Previously Had Anti-TNFa Trough and Antibody Levels Assessed, Inflammatory Bowel Disease, 23, (7), 2017, p1154 - 1159
Yang S, Wang B, Humphries F, Jackson R, Healy M, Bergin R, Aviello G, Hall B, McNamara D, Walsh P, Russell S, Hussey S, O'Sullivan M, Darby T, Quinlan A, Shanahan F, Melgar S,Fallon PG, Moynagh P, Pellino3 ubiquitinates RIP2 and mediates NOD2-induced signaling and protective effects in colitis, Nature Immunology, 14, (9), 2013, p927 - 936
McNamara D, El-Omar EM, How accurate are fecal tests for determination of cure after Helicobacter pylori eradication therapy?, Nature Clinical Practice. Gastroenterology & Hepatology, 4, (5), 2007, p248-9
Holleran G, Barry S, Thornton O, Dobson M, McNamara D., The use of small bowel capsule endoscopy in iron deficiency anaemia: low impact on outcome in the medium term despite high diagnostic yield., European Journal of Gastroenterology and Hepatology, 25, (3), 2013, p327 - 332
Holleran G, Hussey M, Hall B, Dobson M, Thornton O, McNamara D., Small bowel angiodysplasia and novel disease associations: a cohort study., Scandinavian Journal of Gastroenterology, 48, (4), 2013, p433 - 438
Alakkari A, Gammell Y, O'Connor H, McNamara D, Breslin N,Ryan B, Audit of the appropriateness of hepatoma surveillance in a cohort of patients attending a dedicated haemachromatosis clinic., GUT, British and Irish Gastroenterology Meeting, April 2013, 62, 2013, ppA67-
Lee CS, Leen R, O'Morain C, McNamara D, Screening for colorectal cancer: What fits best ?, Expert Reviews Gastroenterology Hepatology, 6, (3), 2012, p301 - 312
O'Connor A, Gisbert JP, McNamara D, O'Morain C, Treatment of Helicobacter pylori infection 2010., Helicobacter, 15, (s1), 2010, p46 - 52
Macdonald J, Porter V, McNamara D, Negative capsule endoscopy in patients with obscure GI bleeding predicts low rebleeding rates., Gastrointestinal Endoscopy, 68, (6), 2008, p1122-7
Leen R, Shearer N, O'Morain C, McNamara D, Comparison of Faecal M2-PK and FIT in screening for colonic polyps in an average risk population, GUT, British Society of Gastroenterology, Glasgow, UK, June 2013, 62, (Suppl 1), 2013, ppA30-
McNamara D, Qasim A, Lee N, Condon C, O'Morain C, Round one of the Adelaide and Meath Hospital/Trinity College Colorectal Cancer Screening Programme: programme report and analysis based on established international key performance indices., Irish journal of medical science, 180, (2), 2011, p549 - 542
Tara C. Raftery, Adrian Martineau, Claire Greiller, Chun Seng Lee, Deirdre McNamara, Subrata Ghosh, Jon Meddings, Maria O'Sullivan., Effects of Vitamin D Supplementation on Intestinal Permeability, Plasma Cathelicidin and Human Beta-Defensin-2 in Crohn's Disease: Results From a Randomised Double-Blind Placebo-Controlled Study. , Gastroenterology, Digestive Disease Week, USA, May 2013, 144, (S1), 2013, ppS226-
Tara C. Raftery, Martin Healy, Gerry Cox, Deirdre McNamara, Maria O'Sullivan., Vitamin D Supplementation Improves Muscle Strength, Fatigue and Quality of Life in Patients With Crohn's Disease in Remission: Results of a Randomized Double-Blind Placebo-Controlled Study., Gastroenterology, Digestive Disease Week, USA, May 2013, 144, (S1), 2013, ppS227-
O'Connor A, Taneike I, Nami A, Fitzgerald N, Ryan B, Breslin N, O'Connor H, McNamara D, Murphy P, O'Morain C., Helicobacter pylori resistance rates for levofloxacin, tetracycline and rifabutin among Irish isolates at a reference centre., Irish Journal of Medical Science, 182, (4), 2013, p693 - 695
Alaa Alakkari, Omar El-Sherif, Mark Dobson, Orla Thornton, Deirdre Mc Namara., Is focused training adequate or is prior Endoscopy experience needed for reliable Capsule Endoscopy reporting?, Journal of Gastroenterology and Hepatology Research, 2, (5), 2013, p628 - 631
Clostridium difficile Sub-Committee, Health Protection Surveillance Centre, Surveillance, Diagnosis and Management of Clostridium difficile Infection in Ireland, Update of 2008 Guidance, HSE, Health Protection Surveillance Centre, March, 2013
G. Holleran, B. Hall, M. Hussey, O. Thornton, M. Dobson, D. McNamara, How accurate are capsule endoscopy scoring systems in Crohn's disease?, Journal of Crohn's and Colitis, 8th Congress of ECCO - the European Crohn's and Colitis Organisation, Vienna, Austria, Febuary 2013, 7 (Suppl 1), 2013, ppS103-
Tara C. Raftery, Czara Kennedy, Colm A. O'Morain, Deirdre McNamara, Maria O'Sullivan., Longitudinal Changes in Body Mass Index and Abdominal Obesity in Crohn's Disease - Associations With Inflammatory Markers and Disease Course., Gastroenterology, Digestive Disease Week, USA, May 2013, 144, (S1), 2013, ppS-126-
Hall B, Holleran G, Costigan D, Thornton O, Dobson M, McNamara D., The impact of wireless capsule endoscopy in suspected Crohn's disease - a longitudinal study, Journal of Crohn's and Colitis, 8th Congress of ECCO - the European Crohn's and Colitis Organisation, Vienna, Austria, Febuary, 2013, 7 (Suppl 1), 2013, ppS62-
Hall B, Holleran G, Lawson S, Reagan G, Murphy M, McMahon B, McNamara D., Who nose nasal endoscopy might be best- A pilot feasibility, safety and tolerability comparative study, GUT, British and Irish Gastroenterology Meeting, Belfast, April 2013, 62, 2013, ppA77-
Hussey M, Holleran G, McNamara D., Combined multifocal gastrointestinal stromal tumours and coeliac disease in a patient with Type 1 Neurofibromatosis: Rapid diagnosis employing newer small bowel imaging techniques., Journal of the Royal Society of Medicine Short Reports, 4, 2013, p1 - 4
Leen R, Shearer N, O'Morain C, McNamara D., Faecal M2-Pyruvate kinase in screening for colorectal polyps and cancer, GUT, United European Gastroenterology Week, Amsterdam, October 2012, 61, 2012, ppA181-
Hall B, Holleran G, Flannery C, McNamara D, Clostridium Difficile in IBD: An under diagnosed cause of disease prolapsed? , GUT, British and Irish Gastroenterology Meeting, Belfast, April 2013, 62, (S2), 2013, ppA84-
Lee C.S, Shailesh A, McMahon B, McNamara D, A novel technique for measurement of ileo-ceacal valve function., GUT, United European Gastroenterology Week, Amsterdam, October 2012, 61, 2012, ppA305-
Leen R, Thornton O, Dobson M, O'Morain C, McNamara D., Preliminary results of capsule colonoscopy as a filter test prior to standard optical colonoscopy in a FIT positive screening cohort., GUT, United European Gastroenterology Week, Amsterdam, October 2012, 61, 2012, ppA300-
O'Connor A, Alakkari A, Ryan B, Breslin N, McNamara D, O'Connor HJ, O'Morain C., Age, smoking, male gender and regular aspirin use predict premalignant conditions of the stomach in a low risk gastric cancer prevalence cohort., Gastroenterology, American Gastroenterological Association, USA, May, 2012, 142, (5), 2012, ppS-633-
Holleran G, Shearer N, O'Morain C, McNamara D., The high frequency of adenomas detected on screening in older patients warrants the inclusion of this cohort in national programmes., Gastroenterology, American Gastroenterological Association, USA, May, 2012, 142, (5), 2012, ppS-776-
Holleran G, Barry S, Thornton O, Dobson M, McNamara D., Low long term predictive value of SBCE despite high diagnostic yield in Iron deficiency anaemia., Gastroenterology, American Gastroenterological Association, USA, May, 2012, 142, (5), 2012, ppS-807-
Leen R, Seng-Lee, Mcnamara D., Reduction in sequential FIT positivity and cancer detection rates in the Tallaght-trinity College colorectal cancer screening programme (TTC-CRC-SP) over time., Gastroenterology, American Gastyroenterological Association, USA, May 2012, 142, (5), 2012, ppS156-
Lee CS, McNamara D, O'Morain C, Aspirin as a Chemoprevention Agent for Colorectal Cancer, Current Drug Metabolism, 13, 2012, p1313 - 1322
O'Connor A, McNamara D, O'Morain C, Surveillance of gastric intestinal metaplasia for the prevention of gastric cancer., Cochrane Database of Systematic Reviews, 9, 2013, pCD009322
O'Connor A, Alakkari A, McNamara D, Breslin N, Ryan B, O'Connor H, O'Morain C., Surveillance of gastric intestinal metaplasia leads to the earlier stage diagnosis of gastric adenocarcinoma., Helicobacter, XXIV International Workshop on Helicobacter and related bacteria in chronic digestive inflammation and gastric cancer., 2011, 16, (S1), 2011, ppP01.08-
Alakarri A, El-Sheriff O, Dobson M, Thornton O, McNamara D., Is focused training adequate or is prior upper and lower gastrointestinal endoscopy experience needed for reliable reporting of capsule endoscopy., Endoscopy, United European Gastroenterology Week, 2011, 43, (SI), 2011, ppA343-
O'Connor A, El-Sherif O, McNamara D, Ryan B, Breslin N, Shearer N, O'Connor H, O'Morain C., 2-sample Faecal Immunological Test based screening is superior to 1-sample screening for the detection of colonic adenomata and neoplasia., GUT, United European Gastroenterology , 2011, 60, (S3), 2011, ppA81-
Macdonald J, Porter-Ritchie V, Mackie B, McNamara D., Assessment of tolerance, safety and efficacy of ambulatory oesophageal pH monitoring using the catheter free Bravo system in a Scottish population., GUT, British Society of Gastroenterology , 2011, 60, (1), 2011, ppA182-
O'Connor A, Alakkari A, McNamara D, Breslin N, Ryan B, O'Connor H, O'Morain C., Departmental attitudes for the awareness and prevention of gastric cancer prevent missed diagnoses., Helicobacter, XXIV International Workshop on Helicobacter and related bacteria in chronic digestive inflammation and gastric cancer., 2011, 16, (S1), 2011, pp92 - 93
Lee CS, O'Gorman P, Walsh P, Qasim A, McNamara D, O'Morain C, Boran G., Immunochemical faecal occult blood tests have superior stability., Journal of Clinical Pathology, 64, (6), 2011, p524 - 528
El-Sherif O, Breslin N, O'Connor H, Ryan B, O'Morain C, McNamara D, The efficacy of various faecal immunological test (FIT) cut-off points in a two step bowel cancer screening programme, GUT, United European Gastroenterology Week , 2011, 60, 2, 2011, ppA202
Anthony O'Connor, Javier P. Gisbert, Deirdre McNamara, Colm O'Morain, Treatment of Helicobacter pylori Infection 2011, Helicobacter, 16, (s1), 2011, p53-58
Dominguez Castro P, Harkin G, Hussey M, Christopher B, Kiat C, Chin JL, Trimble V, McNamara D, MacMathuna P, Egan B, Ryan B, Kevans D, Farrell R, Byrnes V, Mahmud N, McManus R. , Changes in Presentation of Celiac Disease in Ireland From the 1960s to 2015, Clinical Gastroenterology and Hepatology, 15, (1), 2017, p864 - 871
Porter V, Mcdonald J, Mackie B, McNamara D., Accuracy of 13C Mixed Triglyceride Breath Testing for investigation of exocrine pancreatic insufficiency- an audit., GUT, United European Gastroenterology Week, 2010, 59, (SIII), 2010, ppA441-
Macdonald JC, Ramalingam S, Porter-Ritchie V, Thomson J, Yule S, McNamara D., A prospective comparison of MR enterography and wireless capsule endoscopy for assessment of small bowel Crohn's disease. Interim assessment., Endoscopy, 18th United European Gastroenterology Week, 2010, 42, (Supl I), 2010, ppA277-
O'Hara F, McNamara D., Small-Bowel Capsule Endoscopy-Optimizing Capsule Endoscopy in Clinical Practice, Diagnostics (Basel), 11, (11), 2021, p2139-
Macdonald JC, Porter V, Mackie B, McNamara D., Do we overestimate the risk of capsule endoscopy in suspected or established small bowel Crohn's disease? A comparison with completion rates observed in the setting of obscure gastrointestinal bleeding., GUT, United European Gastroenterology Week, 2010, 59, (1), 2010, ppA53-
O'Connor A, Alakkari A, McNamara D, Breslin N, Ryan B, O'Connor H, O'Morain C., Resistance to Levofloxacin, Rifabutin and Tetracycline amongst H.pylori strains in a reference centre, Helicobacter, XXIII International Workshop on Helicobacter and related bacteria in chronic digestive inflammation and gastric cancer , 2010, 15, (4), 2010, pp388-
Semenov S, Ismail MS, O'Hara F, Sihag S, Ryan B, O'Connor A, O'Donnell S, McNamara D., Addition of castor oil as a booster in colon capsule regimens significantly improves completion rates and polyp detection., World Journal of Gastrointestinal Pharmacology and Therapeutics, 12, (6), 2021, p103 - 111
Macdonald J, Porter V, Scott NW, McNamara D, Small bowel lymphangiectasia and angiodysplasia: a positive association; novel clinical marker or shared pathophysiology?, Journal of clinical gastroenterology, 44, (9), 2010, p610-4
O'Connor A, Keane RA, Egan B, Lee N, O'Connor H, Qasim A, Ryan B, Breslin N, McNamara D, O'Morain C, Adherence to colorectal polyp surveillance guidelines: is there scope to increase the opportunities for screening?, European Journal of Cancer Prevention : the official journal of the European Cancer Prevention Organisation (ECP), 20, (1), 2010, p40 - 45
Porter V, Zahid A, Mackie B, McNamara D., Results of a prospective comparison pilot validation study of a low dose tablet formulation 13C Urea and Citric acid Breath Test employing a novel automated non dispersive isotope selective infrared spectroscopy analyzer (HeliFAN/ FAN as) for the diagnosis of Helicobacter pylori infection. , European Journal of Gastroenterology, 21, (11), 2009, p1321 - 1322
McLeman L, Sinclair T, McNamara D, Colonoscopy performance in the colon cancer screening era: Does equipment matter., Gastroenterology Today, 3, (19), 2009, p80-83
MacDonald JC, Porter V, McNamara DA., In cases of obscure gastrointestinal bleeding, negative capsule endoscopy predicts good long-term outcome., GUT, British Society of Gastroenterology, UK, 2008, 57, 2008, ppA64-
McKay B, McNamara D, The role of flexible sigmoidoscopy and colonoscopy in acute lower gastrointestinal bleeding., Gastrointestinal Endoscopy, American Gastroenterological Association, Digestive Disease Week, 2008, 67, (5), 2008, ppAB321-
Macdonald J.C, Porter V, McNamara D, A Standardised Bowel Preparation Regime can improve completion rates and quality of study in capsule endoscopy., Gastroenterology, American Gastroenterological Association, Digestive Disease Week, 2008, 134, (1), 2008, ppA344-
McNamara D, El-Omar E, Helicobacter pylori infection and the pathogenesis of gastric cancer: a paradigm for host-bacterial interactions., Digestive and liver disease : official journal of the Italian Society of Gastroenterology and the Italian Association for the Study of the Liver, 40, (7), 2008, p504-9
Peptic ulcer and H.pylori infection and NSAIDs: Gastric and peptic ulcer disease. in, editor(s)Joseph Sung and Peter Cotton. , Upper Endoscopy: Advanced endoscopy., GastroHep.com, 2005, [McNamara D, Malfertheiner P.]
Riordan JM, Abdel-latif MM, Ravi N, McNamara D, Byrne PJ, McDonald GS, Keeling PW, Kelleher D, Reynolds JV, Proinflammatory cytokine and nuclear factor kappa-B expression along the inflammation-metaplasia-dysplasia-adenocarcinoma sequence in the esophagus., The American journal of gastroenterology, 100, (6), 2005, p1257-64
McNamara D, McLoughlin R, O'Morain C , Screening for colorectal cancer, Journal of Modern Medicine, 2004
O'Riordan JM, Abdel-Latif MM, McNamara D, Ravi N, Kelleher D, Keeling PWN, Reynolds, JV , Cytokine and NF-kappa B profiles in the metaplasia-dysplasia-adenocarcinoma sequence in the oesophagus, British Journal of Surgery, International surgical Congress, UK, 2003, 90, (5), 2003, pp611 - 612
Khal S, Zimmermann S, Genz I, Glasbrenner B, Pross M, Schultz HU, McNamara D, Schmidt U, Malfertheiner P., Risk factors for failure of endoscopic stenting of biliary strictures in chronic pancreatitis: a prospective follow-up study., American Journal of Gastroenterology, 98, (11), 2003, p2448 - 2450
Rocco A, Schandl L, Chen J, Wang H, Tulassay Z, McNamara D, Malfertheiner P, Ebert MP., Loss of FHIT protein expression correlates with disease progression and poor differentiation in gastric cancer. , Journal of Cancer Research Clinical Oncology, 129, (2), 2003, p95 - 98
McNamara D, Pancreatic disease, Alimentary Pharmacology and Therapeutics, (18), 2003, p60-65
Lamy V, McNamara D, Gastroenterology and hepatology services in Europe., Alimentary pharmacology & therapeutics, 18 Suppl 3, 2003, p90-2
Burroughs A, McNamara D, Liver disease in Europe., Alimentary pharmacology & therapeutics, 18 Suppl 3, 2003, p54-9
Mahmood Z, McNamara D, Gastro-oesophageal reflux disease and ulcer disease., Alimentary pharmacology & therapeutics, 18 Suppl 3, 2003, p31-7
McLoughlin, R, Sebastian, SS, Qasim, A, McNamara, D, O'Connor, HJ, Buckley, M, O'Morain, C, Coeliac disease in Europe., Alimentary Pharmacology & Therapeutics, 18 , (Suppl 3), 2003, p45-48
D Mc Namara, W Hall, M O'Sullivan, C O'Morain C. , Altered cardia epithelial cell kinetics induced by Helicobacter pylori infection and gastro-oesophageal reflux disease: possible malignant potential? , European Journal of Gastroenterology & Hepatology, 15, (7), 2003, p767 - 772
Arfin QSM, McNamara DA, Dinan T, Keeling PWN., Increased cholinergic responsivity occurs in patients with irritable bowel syndrome., Gastroenterology, American Gastroenterological Association, Digestive disease Week, USA, 2002, 122, (4), 2002, ppA384-
O'Riordan JM, Abdel-Latif MM, McNamara D, Ras N, Kelleher D, keeling PWN, Reynolds V., Nuclear factor-kappa B activation in Barrett's oesophagus: a marker of disease progression?, British journal of Surgery, International Surgical Congress, UK, 2002, 89, (1), 2002, pp42-
McNamara, Deirdre A.; Brady, Deirdre M.; Dinan, Ted; Keeling, Napoleon P. W. , Increased serotonergic and cholinergic central receptor sensitivity in subjects with non ulcer dyspepsia., Gastroenterology, American Gastroenterological Association, Digestive Disease Week, 2002, 122, (1), 2002, ppA383-
McNamara D, Buckley M, O'Morain C., Helicobacter pylori induced duodenal ulcer frequently coincides with gastro-oesophageal reflux disease. , Digestive and Liver Disease , 34, 2002, p542 - 546
Summary session: Helicobacter pylori and inflammatory bowel disease in, editor(s)Takashi Shimayama, Anthony Axon, Adrian Lee, Daniel K Podolsky, C O'Morain , Helicobacter meets Inflammatory Bowel Disease., Tokyo, Japan, Medical Tribune Inc, 2002, [McNamara D]
Kahl S, Zimmermann S, Glasbrenner B, Pross M, Schulz HU, McNamara D, Malfertheiner P, Treatment of benign biliary strictures in chronic pancreatitis by self-expandable metal stents., Digestive diseases, 20, (2), 2002, p199-203
Dinan TG, Scott LV, Brady D, McNamara D, Keeling PW, Altered hypothalamic cholinergic responses in patients with nonulcer dyspepsia: a study of pyridostigmine-stimulated growth hormone release., The American journal of gastroenterology, 97, (8), 2002, p1937-40
McNamara D, Buckley M, Crotty P, Hall W, O' Sullivan M, O' Morain C, Carditis: all Helicobacter pylori or is there a role for gastro-oesophageal reflux?, Scandinavian Journal of Gastroenterology, 37, (7), 2002, p772-7
McNamara D, Buckley M, Gilvarry J, O' Morain C, Does Helicobacter pylori eradication affect symptoms in nonulcer dyspepsia: a 5-year follow-up study., Helicobacter, 7, (5), 2002, p317-21
McNamara D, Mahmud N, Dinan T, Keeling PWN, Increased serotinergic responsivity plays a key role in non ulcer dyspepsia and is not related to H.pylori infection, Gastroenterology, American Gastroenterological Association, Digestive Disease Week, USA, 2001, 120, 2001, ppA235-
McNamara D, Mahmud N, Ellis L, Dinan T, Keeling PWN, Increased serotonergic responsiveness plays a key role in functional dyspepsia and is not related to Helicobacter pylori infection., Gastroenterology, American Gastroenterological Association, Digestive Disease Week, 2001, 120, (5), 2001, ppA235-
McNamara D, Keeling PWN, Acute pancreatitis, Journal of Modern Medicine , 31, (4), 2001, p1-7
McNamara D, O'Morain C, Dyspepsia: A test and treat management strategy, Annals of Gastroenterology , 14, 2001, 14-16
Montague S, Carney A, McNamara D, Kennedy M, O'Sullivan M, Buckley M, O'Morain C., An audit of anti TNF alpha therapy in Irish Crohn's patients, GUT, United European Gastroenterology Week, Ireland, 2000, 46, (2), 2000, ppA10-
Montague S, McNamara D, Kennedy M, Clohessy A, Buckley M, O'Morain C, Epidemiology of Inflammatory Bowel Disease in an Irish population, GUT, 7th United European Gastroenterology Week, 2000, 46, (2), 2000, ppA10-
McNamara DAU, Whelan H, Montague S, O'Morain C , How to cope with failure!, GUT, XIII International Workshop on Gastroduodenal Pathology and Helicobacter pylori., 2000, 47, (1), 2000, ppA109-
McNamara DA, Montague SM, Buckley MM, Crotty PA,O'Morain CA, Endoscopy negative reflux: Any role for biopsy?, Gastroenterology, American Gastroenterological Association, Digestive Disease Week , USA, 2000, 118, 2000, ppA1273-
New clinical aspects of Helicobacter pylori infection. in, editor(s)A Moran and C O'Morain. , Helicobacter pylori., Hamburg, Normed Verlag, 2000, [McNamara, O'Morain C.]
Helicobacter pylori eradication in dyspepsia is clinically useful. in, editor(s)Hunt R and Tytgat GN. , Helicobacter pylori, Basic Mechanisms to Clinical Cure., Hamburg, Kluwer Academic Publishers, 2000, [McNamara D, O'Morain C.]
McNamara D, O'Morain C, Non-ulcer dyspepsia: Current concepts and management., Gastroenterology Clinics of North America , 29, 2000, p807-18
McNamara D, O'Morain C, Consensus guidelines: agreement and debate surrounding the optimal management of Helicobacter pylori infection., Canadian Journal of Gastroenterology., 14, (6), 2000, p511-7
Vaira D., Malfertheiner P.,. Megraud F, Axon A., Deltenre M., Gasbarrini G.. O'Morain C., Pajares Garcia J., Quina M., Tytgat G., and the European Helicobacter pylori HpSA Study Group., Noninvasive Antigen-Based Assay for Assessing Helicobacter pylori Readication: A European Multicenter Study., American Journal of Gastroenterology, 95, 2000, p925-929
McNamara D, Buckley M, O'Morain C, Will eradication of Helicobacter pylori improve symptoms of non-ulcer dyspepsia. More studies should have been included in the meta-analysis., British Medical Journal , 29, (320 (7243):), 2000, p1209-10
McNamara D, Crotty P, Buckley M, O'Morain C, Carditis: A marker of GERD or a manifestation of H.pylori infection?, Gastroenterology, American Gastroenterological Association, Digestive disease Week, USA, 1999, 116, 1999, ppG1089-
McNamara D, Hamilton H, Beattie S, Buckley M, O'Morain C, GERD is a frequent finding in H.pylori induced duodenal ulceration, Gastroenterology, American Gastroenterological Association, Digestive Disease Week, USA, 1999, 116, 1999, ppG1089-
McNamara D, O'Morain C, Can Screening for H.pylori prevent gastric cancer?, The Medical Journal of Malaysia, Malaysian Society of Gastroenterology, Malaysia, 1999, 54, 1999, ppS5-
McNamara D, Montague S, Buckley M, O'Morain C, Dyspepsia: An audit of hospital based practice, Irish Journal of Medical Science, Irish Society of Gastroenterology, Ireland, 1999, 168, (2), 1999, ppA13-
Montague S, McNamara D, Whelan H, Buckley M, O'Morain C, Second line therapy for Helicobacter pylori infection, Irish Journal of Medical Science, Irish Society of Gastroenterology, Ireland, 1999, 168, (2), 1999, ppA13-
McNamara D, Gilvarry J, Buckley M, O'Morain C., Does H.p eradication affect symptoms in non-ulcer dyspepsia: a five year follow up study, GUT, United European Gastroenterology Week, Rome, 45, 1999, ppA3-
Sharma V.K Howden C.W, Jones D.B, Park I.J.S, Cook M, McNamara D, O'Morain C, Van Zanten S.J.O, Hunt HR, Gangulia S, Festen MPH, Ramage JK., International survey of internal medicine trainees understanding of colorectal cancer screening, Am J Gastroenterology, American Gastroenterological Association, Digestive Disease Week, USA, 1999, 94, 1999, ppA2686-
McNamara D; Hamilton H; Beattie S, O'Morain C., Duodenal ulcer and GORD: Unmasking the truth., GUT, XII International Workshop on Gastroduodenal Pathology and Helicobacter pylori., 1999, 45, (3), 1999, ppA84-
The European HPSA Study Group, Diagnosis of Helicobacter pylori infection with a new non-invasive antigen based assay in a European multicentre study. , Lancet, 354, 1999, p30 - 33
Hp et Cancer Gastrique. in, editor(s)Liaisons S.A. , Maladies de l'oesophage, de l'estomac et du duodenum., Arnette Groupe, 1999, [McNamara D, O'Morain C.]
McNamara D, O'Morain C, GERD and Helicobacter pylori: an intricate relationship, Gut , 45, (Suppl.1), 1999, p113 - 117
McNamara D, Whelan H, Hamilton H, Beattie S, O' Morain C, HpSA: assessment of a new non-invasive diagnostic assay for Helicobacter pylori infection in an Irish population., Irish journal of medical science, 168, (2), 1999, p111-3
McNamara D, O' Morain C, Gastro-oesophageal reflux disease and Helicobacter pylori: an intricate relation., Gut, 45 Suppl 1, 1999, pI13-7
McNamara D, Franelli S, Whelan H, Hamilton H, Beattie S, O'Morain C, Helicobacter pylori antigen detection in stool; assessment of a new non invasive diagnostic tool in an Irish population, Irish Journal of Medical Science, Irish Society of Gastroenterology, Ireland, 1998, 167, 1998, ppA10-
Montague S, Mc Namara D, Forkin C, O'Morain C, Assessment of a clinical questionnaire characterising Crohn's disease, Irish Journal of Medical Science, Irish Society of Gastroenterology, Ireland, 1998, 167, 1998, ppA7-
Mcnamara D, Beattie S, Hamilton H, O'Morain C, Sub-clinical gastro-oesophageal reflux disease in patients with active H.pylori associated duodenal ulcer, GUT, XI International Workshop on Gastroduodenal Pathology and Helicobacter pylori, Rome, 1998, 43, 1998, ppA100-
Whelan H, O'Morain M, McNamara D, O'Morain C., Open access C13 UBT reduces demand on gastroscopy., GUT, XIth International Workshop on Gastroduodenal Pathology and Helicobacter pylori., 1998, 43, (2), 1998, ppA55-
McNamara D, Lee J, Deasey E, Cullhane A, O'Morain C., Knowledge and practice of H.pylori: A discrepancy, GUT, 57. XIth International Workshop on Gastroduodenal Pathology and Helicobacter pylori., 1998, 43, (2), 1998, ppA113-
McNamara D, Lewis T, O'Morain C., Zollinger-Eillson syndrome with fasting hypoglycaemia. , Journal Royal Society of Medicine , 91, 1998, p92 - 93
Role of Helicobacter in gastric cancer and MALT lymphoma. in, editor(s)D Tsantoulas , 1st Mediterranean Summer School., Greece, Samos, 1998, [McNamara D, O'Morain C.]
Therapy of Hp positive non-ulcer dyspepsia. in, editor(s)Basel , Progress in Basic and Clinical Pharmacology., Karger, 1998, [Montague S, McNamara D, O'Morain C.]
McNamara D, O' Morain C, Helicobacter pylori and gastric cancer., Italian Journal of Gastroenterology and Hepatology, 30 Suppl 3, 1998, pS294-8
McNamara D, Power J, Hourihan D, O'Morain C, Cryptogenic Organising Pneumonitis in association with acute viral hepatitis., Irish Journal of Medical Science , 166, 1997, p83 - 84
Lee JM, McNamara D, Breslin NP, Hyde DK, O'Morain C, Options for Helicobacter eradication in clinical practice when proton pump inhibitor-based triple therapy fails, Gut , 41, (Suppl.3), 1997, pA16
Hall B, Holleran G, Costigan D, McNamara D, Capsule endoscopy: High negative predictive value in the long term despite a low diagnostic yield in patients with suspected Crohn's disease, United European Gastroenterology Journal , 1, (6), 2013, p461 - 466
Hall B, Kiely C, Tobin AM, McNamara D, Not such a funny story? , Journal of Crohn's and Colitis, 8, (5), 2014, p439 - 440
Leen R, Seng-Lee C, Holleran G, O'Morain C, McNamara D, Comparison of faecal M2-PK and FIT in a population-based bowel cancer screening cohort, European Journal of Gastroenterology and Hepatology, 26, (5), 2014, p514 - 518
Holleran G, Leen R, O'Morain C, McNamara D., Colon capsule endoscopy as possible filter test for colonoscopy selection in a screening population with positive fecal immunology, Endoscopy, 46, (06), 2014, p473 - 478
Holleran G, Hall B, Alhinai M, Zaheer A, Leen R, Alakkari A, Mahmud N, McNamara D, Double Balloon Enteroscopy in Ireland in the capsule endoscopy era, Irish Journal of Medical Science, 184, 2015, p257 - 262
Smith SM, Haider RB, O'Connor H, McNamara D, O'Morain C., Practical treatment of Helicobacter pylori: a balanced view in changing times., European Journal of Gastroenterology & Hepatology, 26, (8), 2014, p819 - 825
Hall B, Holleran G, McNamara D, Small bowel Crohn's disease: An emerging disease phenotype?, Digestive Diseases, 33, (1), 2015, p42 - 51
Holleran G, Hall B, Smith S, McNamara D, Expression of serum angiogenic factors in patients with sporadic small bowel angiodysplasia., Journal of Clinical Gastroenterology, 49, (10), 2015, p831 - 836
Hall B, Holleran G, Mahmud N, Smith S, McNamara D, A prospective 12 week mucosal healing assessment of small bowel Crohn's disease as detected by capsule endoscopy, European Journal of Gastroenterology and Hepatology, 26, (11), 2014, p1253 - 1259
McNamara D, Leen R, Seng-Lee C, Shearer N, Crotty P, Neary P, Walsh P, Boran G, O'Morain C, Sustained participation, colonoscopy uptake and adenoma detection rates over two rounds of the Tallaght-Trinity College Colorectal Cancer Screening Programme with Faecal Immunological Test, European Journal of Gastroenterology and Hepatology, 26, 2014, p1415 - 1421
Smith SM, O'Morain C, McNamara D, Antimicrobial susceptibility testing for Helicobacter pylori in times of increasing antibiotic resistance, World Journal of Gastroenterology, 20, (29), 2014, p9912 - 9921
Hall B, Grainne Holleran G, Chin JL,Smith S, Ryan B, Mahmud N, McNamara D., A prospective 52 week mucosal healing assessment of small bowel Crohn's disease as detected by capsule endoscopy., Journal of Crohn's and Colitis, 8, (12), 2014, p1601 - 1609
Hall B, Holleran G, McNamara D, Current applications and potential future role of wireless capsule technology in Crohn's disease., Scandinavian Journal of Gastroenterology, 49, (11), 2014, p1275 - 1284
Raftery T, Merrick M, Healy M, Mahmud N, O'Morain C, Smith S, McNamara D, O'Sullivan M., Vitamin D Status Is Associated with Intestinal Inflammation as Measured by Fecal Calprotectin in Crohn's Disease in Clinical Remission., Digestive Diseases and Sciences, 60, (8), 2015, p2427 - 2435
Parihar V, Holleran G, Hall B, Brennan B, Crotty P, McNamara D, A combined antral and corpus rapid urease testing protocol can increase diagnostic accuracy despite a low prevalence of Helicobacter pylori infection in patients undergoing routine gastroscopy , United European Gastroenterology, 3, (5), 2015, p432 - 436
Holleran G, Hall B, Breslin N, McNamara D, Long-acting somatostatin analogues provide significant beneficial effect in patients with refractory small bowel angiodysplasia: Results from a proof of concept open label mono-centre trial, United European Gastroenterology, 4, (1), 2016, p70 - 76
Raftery T, Martineau AR, Greiller CL, Ghosh S, McNamara D, Bennett K, Meddings J, O'Sullivan M, Effects of vitamin D supplementation on intestinal permeability, cathelicidin and disease markers in Crohn's disease: Results from a randomised double-blind placebo-controlled study, United European Gastroenterology Journal, 3, (5), 2015, p294 - 302
Haider RB, Brennan DE, Omorogbe J, Holleran G, Hall B, O'Morain C, Breslin N, O'Connor HJ, Smith SM*, McNamara D*., A randomized-controlled study to compare the efficacy of sequential therapy with standard triple therapy for Helicobacter pylori eradication in an Irish population., European Journal of Gastroenterology & Hepatology, 27, (11), 2015, p1265 - 1269
Hall B, Holleran G, McNamara D, Pillcam colon 2 as a pan-enteroscopic test in Crohn's disease, World Journal of Gastrointestinal Endoscopy, 7, (16), 2015, p1230 - 1232
Hussey M, Mc Garrigle R, Kennedy U, Holleran G, Kevans D, Ryan B, Breslin N, Mahmud N, McNamara D, Long term assessment of clinical response to Adalimumab therapy in refractory Ulcerative Colitis, European Journal of Gastroenterology and Hepatology, 28, (2), 2016, p217 - 221
Holleran G, Hall B, Breslin N, McNamara D, The Natural history of small bowel angiodysplasia, Scandanavian Journal of Gastroenterology, 51, (4), 2016, p393 - 399
Smith S, Lean R, O'Connor H, McNamara D, Cullen G, O'Morain C, Gastroenterology in the elderly., Gastroenterolog, 18, (1), 2014, p14 - 18
Holleran G, Hussey M, McNamara D, Small bowel Dieulafoy lesions; an uncommon cause of obscure bleeding in cirrhosis, World Journal Gastrointestinal Endoscopy, 8, (16), 2016, p568 - 571
Clarke N, Gallagher P, Kearney PM, McNamara D, Sharp L, Impact of gender on decisions to participate in faecal immunochemical test-based colorectal cancer screening: a qualitative study, Psychooncology, 25, (12), 2016, p1456 - 1462
Clarke N, McNamara D, Kearney PM, O'Morain CA, Shearer N, Sharp L, The role of area-level deprivation and gender in participation in population-based faecal immunochemical test (FIT) colorectal cancer screening, Preventive Medicine, 93, 2016, p198 - 203
Brennan DE, Omorogbe J, Hussey M, Tighe D, Holleran G, O'Morain C, Smith SM*, McNamara D*., Molecular detection of Helicobacter pylori antibiotic resistance in stool vs biopsy samples, World Journal of Gastroenterology, 7, (22), 2016, p9214 - 9221
Kirthi S, Tobin AM, Hussey M, Scaldaferri F, McNamara D. , Anti-TNF á antibody induced psoriasiform skin lesions in patients with inflammatory bowel disease; an Irish cohort study. , Quaterly Journal of Medicine, 110, (6), 2017, p379 - 382
Smith S,Boyle B, Brennan D, Buckley M, Crotty P, Doyle M, Farrell R, Hussey M, Kevans D, Malfertheiner P, Megraud F, Nugent S, O'Connor A, O'Morain C, Weston S, McNamara D, The Irish Helicobacter pylori Working Group consensus for the diagnosis and treatment of H. pylori infection in adult patients in Ireland., European Journal of Gastroenterology & Hepatology, 27, (5), 2017, p552 - 559
Tighe D, McNamara D., Clinical impact of immunomonitoring in the treatment of inflammatory bowel disease., World Journal of Gastroenterology, 23, 2017, p414 - 425
Yung DE, Rondonotti E, Giannakou A, Avni T, Rosa B, Toth E, Lucendo AJ, Sidhu R, Beaumont H, Ellul P, Negreanu L, Jimenez-Garcia VA, McNamaraD, Kopylov U, Elli L, Triantafyllou K, Shibli F, Riccioni ME, Bruno M, Dray X, Plevris JN, Koulaouzidis A, and the Capsule Endoscopy in Young Patients with IDA research group, Endoscopy in young patients with iron deficiency anaemia and negative bidirectional gastrointestinal endoscopy, United European Gastroenterology, 2017, p1 - 8
Holleran G, Lopetuso LR, Ianiro G, Pecere S, Pizzoferrato M, Petito V, Graziani C, Mc Namara D, Gasbarrini A, Scaldaferri F, Gut microbiota and inflammatory bowel disease: so good so Gut!, Minerve Gastroenterologica and Dietologica, 63, (4), 2017, p373 - 384
Brennan D, Feighery M, Treacy C, Fahy E, Omorogbe J, Hussey,M, Tighe D, Holleran G, O'Morain C, McNamara D , Can bacterial virulence factors predict antibiotic resistant Helicobacter pylori infection?, Helicobacter, 29th International Workshop on Helicobacter and Microbiota in Inflammation and Cancer, Magdeberg, Germany, Septembe 15-17, 2016, 21, (S1), 2016, pp120-
Stack R, Ridgeway L, Moran N, Breslin N, Ryan B. Mc Namara D., A snap-shot review of small bowel capsule endoscopy in the setting of inflammatory bowel disease., Journal of Crohns and Colitis, 12th Congress European Crohn's and Colitis Organisation., Spain, 2017, 11, (S1), 2017, ppS218-
Gallagher C, Ridge A, Tobin A.M, Kevans D, Mc Namara D., Photoprotective behaviours in inflammatory bowel disease patients on azathioprine and TNF-á inhibitors, Journal of Crohns and Colitis, 12th Congress European Crohn's and Colitis Organisation 2017, Spain, 2017, 11, (S1), 2017, ppS169-
Mohamed G, Crotty P, McNamara D, Breslin N, Ryan BM., Long term follow up of lymphocytic colitis patients ., Journal Crohn's and Colitis, 12th Congress European Crohn's and Colitis Organisation, Spain, 11, (S1), 2017, ppS181-
Rowan CR, Alakkari A, Moran C, O'Connell J, Cullen G, Mulcahy H, O'Morain C, McNamara D, Leyden J, MacMathuna P, O'Toole A, Patchett S, McKiernan S, Kevans D, Doherty G.A, B. Ryan B., Ustekinumab treatment effectiveness in clinical practice; a multicentre retrospective review of long-term outcomes in Crohn's disease, Journal of Crohns and Colitis, 12th Congress European Crohn's and Colitis Organisation, Spain, 11, (S1), 2017, ppS383-
Tighe D, Breslin N, Ryan B, McNamara D., Clinical/biochemical predictors of response to anti-TNFa therapies in a tertiary referral centre., Journal of Crohns and Colitis, 12th Congress European Crohn's and Colitis Organisation, 2017, 11, (S1), 2017, ppS386-
Kirthi S, Tobin A, McNamara D. , Anti-TNFá antibody induced psoriasis in patients with inflammatory bowel disease; a prospective Irish cohort study., United European Gastroenterology Journal, 24th United European Gastroenterology Week, Austria, 4, (5S), 2016, ppA267-
Hussey M, Holleran G, Keating D, Whelan S, Devitt P, Ryan B, McNamara D., Related risk factors associated with Steroid resistance. , United European Gastroenterology Journal, 24th United European Gastroenterology Week, Austria, 4, (5S), 2016, ppA272-
Parihar V, Alakkari A, Crowther S, McNamara D. , Clinical outcome of patients with raised intraepithelial lymphocytes (IELs) with normal villous architedture on duodenal biopsy., United European Gastroenterology Journal, 24th United European Gastroenterology Week, 2016, 4, (5S), 2016, ppA336-
Yousuf H, Walsh R, Maheshwari P, Aleem U, Eagan R, O'Dwyer O, Gallagher C, Azhar S, McNamara D., Is faecal calprotectin a sensitive biomarker for small bowel Crohn's disease as detected by capsule endoscopy?, United European Gastroenterology Journal, 24th United European Gastroenterology Week, Austria, 2016, 4, (5S), 2016, ppA415-
Scaldafferi F, Pistone M.A, Rizzatti G, Ojetti V, Poscia A, Lapetuso LR, Volpe M, Schivoni E, Gaetani E, McNamara D, Armuzzzi A, Cammarota G, Gasbarrini A. , Impact of biological therapy on hospitalization outcomes: report an Italian tertiary center between 2000 and 2013. , United European Gastroenterology Journal, 24th United European Gastroenterology Week , Austria, 2016, 4, (5S), 2016, ppA431-
Holleran G, Hussey M, O'Dwyer O, Smith S, McNamara D., Serum Angiopoietin-2 as is an accurate capsule endoscopy screening tool for the detection of small bowel angiodysplasia, United European Gastroenterology Journal, 24th United European Gastroenterology Week, Austria, 2016, 4, (5S), 2016, ppA528-
Hussey M, Holleran G, Sherlock M, McNamara D. , Inflammatory cytokines and their regulation of 11- beta hydroxyl steroid dehydrogenase type 2 in IBD patients., United European Gastroenterology Journal, 24th United European Gastroenterology Week, Austria, 2016, 4, (5S), 2016, ppA641-
Kirthi S, Tobin A and McNamara D. , Chronic inflammatory conditions carry a similarly higher cardiovascular risk compared with the general population and warrant screening., British Journal of Dermatology, 96th Annual Meeting of the British Association of Dermatologists 2016, UK, 2016, 175, (S1), 2016, ppP40-
Hall B, Holleran G, Chapman L, Ryan B, Mahmud N, McNamara D., A 104 week mucosal healing assessment of symptomatic small bowel Crohn's Disease, Journal of Crohns and Colitis, 11th Congress of European Crohn's and Colitis Organisation, Amsterdam, 2016, 10, (S1), 2016, ppS32-
Hussey M, Cannon A, Holleran G, O'Sullivan J, Sherlock M, McNamara D., Regulation of glucocorticoid metabolism in inflammatory bowel disease and predicting response to steroid therapy., Journal of Crohn's and Colitis, 11th Congress of European Crohn's and Colitis Organisation, Amsterdam, 2016, 10, (S1), 2016, ppS411 - S412
Hussey M, Holleran G, Grooteman K, Smith S, McNamara D., Elevated Angiopoietins independent of TNF- á regulation appear to play a key role in immune mediated angiogenesis in Inflammatory Bowel Disease., Journal of Crohn's and Colitis, 11th Congress of European Crohn's and Colitis Organisation, Amsterdam, 10, (S1), 2016, ppS209-
Holleran G, Hall B, Breslin N, McNamara D., The natural history of small bowel angiodysplasia., Gastroenterology, American Gastroenterological Association, Digestive Disease Week, USA, 2015, 148, (4 (S1)), 2015, ppS641-
Brennan D, Smith SM, Omorogbe JA, Holleran G, Hall B, Hussey M, O'Morain CA, McNamara D., Detection of Helicobacter pylori and antibiotic resistance using a molecular genetics-based approach in human faecal samples., Gastroenterology, American Gastroenterological Association, Digestive Disease Week, USA, 2015, 148, (4 (S1)), 2015, ppS420-
Hussey M, McGarrigle R, Kennedy U, Holleran G, Kevans D, Breslin N, Ryan B, Mahmud N, McNamara D., Long term assessment of clinical response to Adalimumab therapy in refractory Ulcerative Colitis., Gastroenterology, American Gastroenterological Association, Digestive Disease Week, USA, 2015, 148, (4 (S1)), 2015, ppS268-
Shivashini KJ, Hall B, Hussey M, Gilmer J, Wang J, Medina C, McNamara D., Low Infliximab trough levels are not predictive of disease activity in clinical practice., Gastroenterology, American Gastroenterological Association, Digestive Disease Week, USA, 2015, 148, (4 (S1)), 2015, ppS856-
Holleran G, Hall B, Hussey M, McNamara D., Feasibility of Same-Day Colon Capsule Endoscopy for Incomplete Colonoscopy., Gastrointestinal Endoscopy, American Society of Gastrointestinal Endoscopy, Digestive Disease Week, USA, 2015, 81, (5), 2015, ppAB381-
Hussey M, Cannon A, O'Sullivan J, Holleran G, Hall B, Kiat C, Sherlock M, McNamara D., Altered tissue glucocorticoid metabolism is associated with IBD., United European Gastroenterology Journal, 23rd United European Gastroenterology Week, Spain, 2015, 3, (S1), 2015, ppA412-
Haider RB, Smith S, Omorogbe J, Brennan d, Hall B, Holleran G, O'Morian C, O'Connor H, McNamara D., A comparison of sequential therapy with standard triple therapy for Helicobacter pylori eradication in an Irish cohort., United European Gastroenterology Journal, 23rd United European Gastroenterology Week, Spain, 2015, 3, (S1), 2015, ppA496-
Kirthi S, Smith S, Hall B, Hussey M, Tobin A-M, Kiely C, McNamara D., Lack of correlation between Adalimumab antibody and trough levels and neither are predictive of clinical activity., United European Gastroenterology Journal, 23rd United European Gastroenterology Week, 2015, 3, (S1), 2015, ppA601-
Kirthi S, Hussey M, Pistone M, Tobin AM, McNamara D., Anti-TNF antibody induced psoriatiform skin lesions in patients with Inflammatory Bowel Disease. An Irish cohort study., United European Gastroenterology Journal, 23rd United European Gastroenterology Week, Spain, 2015, 3, (S1), 2015, ppA611-
Holleran G, Hussey M, Smith S, McNamara D. , Assessment of serum angiopeitin levels in small bowel disorders; are they predictive of angiodysplasia? , United European Gastroenterology Journal, 23rd United European Gastroenterology Week, 3, (S1), 2015, ppA638-
Kiat C, Ebdelhaq R, Malik A, Bailey Y, Breslin N, McNamara D, Veerappan S, Ryan B, Maintenance Anti-TNF therapy has a beneficial effect on bone mineral density in patients with Inflammatory Bowel Disease. , United European Gastroenterology Journal, 23rd United European Gastroenterology Week, Spain, 2015, 3, (S1), 2015, ppA251-
Omorogbe J, Brennan D, Smith S, Alsaffar M, McNamara D., Comparison of non-invasive tests; Stool HpSA Elisa and C13Urea breath test in the diagnosis of Helicobacter pylori infection in a low prevalence cohort., United European Gastroenterology Journal, 23rd United European Gastroenterology Week, Spain, 2015, 3, (S1), 2015, ppA493-
Omorogbe J, Brennan D, Smith S, Alsaffar M, McNamara D., Comparison of non-invasive tests; Stool HpSA Elisa and C13Urea breath test in the diagnosis of Helicobacter pylori infection in a low prevalence cohort., United European Gastroenterology Journal, 23rd United European Gastroenterology Week, Spain, 2015, 3, (S1), 2015, ppA493-
Jeyarajah SK, O'Connor R, Hellen R, Connolly M, McNamara D, Tobin AM., Insulin resistance and indices of insulin sensitivity in patients with hidradenitis suppurativa, British Journal of Dermatology, 95th Annual Meeting of the British-Association-of-Dermatologists, UK, 173, (S1), 2015, ppP49-
Jeyarajah SK, O'Connor R, Hellen R, Connolly M, McNamara D, Tobin AM., Framingham risk, Q-risk and cardiovascular risk factors in hidradenitis suppurativa: a case-control study., British Journal of Dermatology, 95th Annual Meeting of the British-Association-of-Dermatologists, UK, 2015, 173, (S1), 2015, ppP52-
Hall B, Holleran G, Brennan D, McNamara D., The relevance of ileitis as diagnosed by capsule endoscopy: A comparison with double balloon enteroscopy., Journal of Crohns and Colitis, 10th European Crohn's and Colitis Organisation Congress, Spain, 2015, 9, (S1), 2015, ppS184-
Hall B, Holleran G, McNamara D., A pilot study assessing the viability of Pillcam Colon 2 as a one stop panendoscopic test for patients with Crohn's disease., Journal of Crohn's and Colitis, 10th European Crohn's and Colitis Organisation Congress, 2015, 9, (S1), 2015, ppS212-
Holleran G, Hall B, Smith S, McNamara D., Gene expression levels of angiogenic factors in small bowel angiodysplasias., United European Gastroenterology Journal, 22nd United European Gastroenterology, Austria, 2, (S1), 2014, ppA280-
Moore P, Holleran G, Hall B, McNamara D., Correlation of wireless video capsule endoscopy and other radiological imaging in the investigation of suspected and established Crohn's disease., United European Gastroenterology Journal, 22nd United European Gastroenterology Week., Austria, 2014, 2, (S1), 2014, ppA349-
Haider RB, Smith S, Holleran G, HallB, O'Morian C, O'Connor HJ, McNamara D., Does tailored therapy based on antimicrobial susceptibility testing overcome the increasing failure of standard empirical therapy for Helicobacter pylori infection?, United European Gastroenterology Journal, 22nd United European Gastroenterology Week., Austria, 2014, 2, (S1), 2014, ppA587-
Moore P, McNamara D. , GI bleeding in the modern era: A 3-year review at Tallaght Hospital., United European Gastroenterology Journal , 22nd United European Gastroenterology Week. , Austria, 2, (S1), 2014, ppA387-
Holleran G, Hall B, Crotty P, Smith S, McNamara D., Annual General Meeting 2014. TNF-á dependant angiopoietin mediated angiogenesis in small bowel angiodysplasia; novel physiology and potential clinical marker. , GUT, British Society of Gastroenterology, UK, 63, (1), 2014, ppA272-
Holleran G, Hall B, Crotty P, Smith S, McNamara D., Long acting Octreotide therapy has a beneficial effect in patients with significant small bowel angiodysplasia., GUT, British Society of Gastroenterology, Annual General Meeting, UK, 63, (1), 2014, ppA273-
Alqudah M, Whelan M, McNamara D, Neary P, McMahon BP., EndoFLIP® to Measure Anal Sphincters Distensibility in Healthy and Faecal Incontinence Subjects., Gastroenterology, American Gastroenterological Association, Digestive Disease Week. , USA, 146, (5), 2014, ppS715-
B Hall, G Holleran, S O'Sullivan, S Smith, B Ryan, C Medina, D McNamara, Crohn's disease in an Irish population-A genotype-phenotype analysis, Journal of Crohn's and Colitis, 9th ECCO Conference, Denmark, 8, (S1), 2014, ppS345-
Hall B, Holleran G, Parihar V, McNamara D., Is terminal ileal inflammation predictive of small bowel Crohn's disease ?, Journal of Crohns and Colitis, 9th ECCO Conference., Denmark, 2014, 8, (1), 2014, ppS145-
Holleran G, Hall B, Smith S, McNamara D., Elevated angiopoietin 2 levels in small bowel angiodysplasia; future biomarker or therapeutic target. , United European Gastroenterology Journal, United European Gastroenterology Week, Germany, 2013, 1, (S1), 2013, ppA82-
Hall B, Holleran G, Leen R, Raferty T, McNamara D. , Small bowel ileitis as detected by capsule endoscopy as a predictor of response to immunomodulator therapy- a 3 month mucosal healing assessment. , United European Gastroenterology Journal, 21st United European Gastroenterology Week, Germany, 2013, 18, (S1), 2013, ppP886-
Smith S, Holleran G, O'Morain C, McNamara D., A local audit of eradication rates for first-line triple therapy for Helicobacter pylori and detection of multi-resistant infection., XXVIth International Workshop on Helicobacter and related bacteria in chronic digestive inflammation and gastric cancer., Spain, 18, (1), 2013, ppP1309-
Raftery TC, Martineau A, Greiller C, Seng Lee C, McNamara D, Ghosh S, Meddings J, O'Sullivan M., Effects of Vitamin D Supplementation on Intestinal Permeability, Plasma Cathelicidin and Human Beta-Defensin-2 in Crohn's Disease., Gastroenterology, 122. American Gastroenterological Association, Digestive Disease Week , USA, 2103, 144, 2013, ppS226-
Mostafa NM, Eckert D, Pradhan RS, Mensing S, Robinson A, Sandborn W, Hanauer SB, Colombel JF, Thakkar R, Awni WM, Lofberg R, Rachmilewitz D, Drastich P, Seidler U, Björk JA, Travis S, Lukas M, Emmrich J, Eriksson A, Matsumoto T, Watanabe M, Cummings JRF, Shibata H, Furuya K, Hibi T, Raftery TC, Martineau A, Greiller C, Lee CS, McNamara D, Ghosh S, Meddings J, O'Sullivan M, Healy M, Cox G, Vogelaar L, van't Spijker A, Timman R, van Tilburg AJP, Bac D, Kuipers EJ, Busschbach J, van der Woude CJ, Falvey JD, Hoskin TS, Meijer B, Ashcroft AL, Hampton MB, Day AS, Gearry RB, Sharma S, Hyams JS, Rosh JR, Ruemmele F, Peyrin-Biroulet L, Reinisch W, Mantzaris GJ, Kornbluth A, Diamond R, Rutgeerts PJ, Kezhen L Tang, Freddy J Cornillie, Omoniyi J Adedokun, Zhenhua Xu, Colleen W Marano, Strauss R, Zhang H, Johanns J, Ford JA, Zhou H, Davis HM, Feagan BG, Noertersheuser PA, Inokuchi T, Kato J, Hiraoka S, Suzuki H, Hirakawa T, Akita M,Takahashi S, Harada K, Okada H, Yamamoto K, Pan WJ, Sullivan BA, Rees WA, Evangelista CM, Doherty DR, Prince PJ, Reynhardt KO, Zhou K, Yen M, Hooper MM, Lee J, Yu Z, Hsu H, Borie DC, Radford-Smith G, Andrews JM, Schwartz HI. , Exposure-Efficacy Relationship (ER) for Adalimumab During Induction Phase of Treatment of Adult Patients With Moderate to Severe Ulcerative Colitis. , Gastroenterology, American Gastroenterological Association, Digestive Disease Week . , USA, 2013, 144, (5 (S1)), 2013, ppS225 - S226
Mcdonald JC, Ramalingam S, Porter-Ritchie V, Thomson J, Yule S, McNamara D. , A prospective comparison of MR enterography and wireless capsule endoscopy for assessment of small bowel Crohn's disease., Journal of Crohns and Colitis, European Crohn's and Colitis Organisation, 2011, (5 (S1)), 2011, ppS190-
J. M. Mikhail, K. Yahara, E. C. T. Berthenet, L. Mageiros,K. Thorell, F. Megraud, C. Varon, P. Lehours,C. O'Morain, D. McNamara,S. Smith, A. P. Griffiths, L. Williams, H. N. Y. Haboubi, G. J. S. Jenkins, R. Suzuki, Y. Yamaoka. J. , Lawson, D. Falush and S. K. Sheppard., EVOLUTION OF OLD WORLD POPULATIONS OF HELICOBACTER PYLORI, Helicobacter, XXVIIIth International Workshop on Helicobacter Microbiota in Inflammation & Cancer & , Cyprus, 2015, 20, (S1), 2015, ppS120-
Parihar V, B. Hall B, McNamara D., A SIMULTANEOUS DUAL ANTRAL AND CORPUS RAPID UREASE TEST, Helicobacter, XXVIIth International Workshop on Helicobacter & Microbiota in Inflammation & Cancer, Italy, 2014, 19, (S1), 2014, ppP10-
S. M. Smith, R. B. Haider, G. Holleran, Hall B, O'Connor H, Lawson A, O'Morain C, McNamara D, A MOLECULAR GENETICS-BASED APPROACH FOR THE DETECTION OF CLARITHROMYCIN AND FLUOROQUINOLONE RESISTANT H. PYLORI INFECTION, Helicobacter, XXVIIth International Workshop on Helicobacter and Microbiota in Chronic DigestiveInflammation and Gastric Cancer, Italy, 2014, 19, (S1), 2014, ppp152-
R. Haider, S. Smith, B. Hall, G. Holleran, C. O' Morain, H. O'Connor, N Breslin, D McNamara, DOES TAILORED THERAPY BASED ON ANTIMICROBIAL SUSCEPTIBILITY TESTING OVERCOME THE INCREASING FAILURE OF STANDARD EMPIRICAL THERAPY FOR HELICOBACTER PYLORI INFECTION, Helicobacter, XXVIIth International Workshop on Helicobacter and Microbiota in Chronic Digestive Inflammation and Gastric Cancer, Italy, 2014, 19, (S1), 2014, pp147-
Parihar V, Stack R. Alakkari A. Breslin N, Ryan B, Crowther S, McNamara D., Clinical Outcome of Patients with Raised Intraepithelial Lymphocytes with Normal Villous Architecture on Duodenal Biopsy, Digestion, 95, 2017, p288 - 292
Shahin A, McNamara D., Single centre experience with H.pylori eradication therapy., GUT, British and Irish Gastroenterology Meeting, Northern Ireland, April 2017, 66, (S1), 2017, ppA14-
D Brennan, M Hussey, D Tighe, C O'Morain, S Smith, D McNamara., Tailored therapy for rescue treatment of Helicobacter pylori infection., GUT, British and Irish Gastroenterology Meeting, Northern Ireland, April 2017, 66, (S1), 2017, ppA22-
Mohamed G, Crotty P, McNamara D, Breslin N, Ryan BM. , Long term follow up of microscopic colitis., GUT, British and Irish Gastroenterology Meeting, Northern Ireland, April 2017, 66, (S1), 2017, ppA20-
Stack R, O'Donnell S, O'Morain C, Hussey M, O'Connor A, Breslin N, Alakkari A, McNamara D, Ryan BM., Follow-up of patients with isolated active ileitis: increasing development of overt Crohn's disease over time., GUT, British and Irish Gastroenterology Meeting, Northern Ireland, April 2017, 66, (S1), 2017, ppA23-
O'Morain N, Farrell G, Stack R, Hussey M, Bailey Y, Kiat C, Veerappan S, D McNamara, O'Connor A, Breslin N, O'Morain C, Ryan BM., 10 year follow-up study of the long term effects of ANTI-TNF therapy on bone metabolism in a cohort of ANTI-TNF naïve IBD patients., GUT, British and Irish Gastroenterology Meeting, Northern Ireland, April 2017, 66, (S1), 2017, ppA23-
Stack R, O'Brien C, Nuzum T, Cummins S, Hussey M, O'Morain N, O'Connor A, Breslin N, Ryan B, Murphy I, McNamara D., Magnetic resonance of the small bowel with early (70s) and late (7MINS) phase post gadolinium imaging to identify fibrosis in stricturing small bowel Crohn's disease., GUT, British and Irish Gastroenterology Meeting, Northern Ireland, April 2017, 66, (S1), 2017, ppA24-
Tighe D, Smith S, O'Connor A, Breslin N, Ryan B, McNamara D., Correlation of relationship between infliximab and adalimumab trough and antibody levels with clinical response rates at completion of induction therapy., GUT, British and Irish Gastroenterology Meeting, Northern Ireland, April 2017, 66, (S1), 2017, ppA15-
Fernandez-Urien I, Panter S, Carretero C, Davison C, Dray X, Fedorov E, Makins R, Mascarenhas M, McAlindon M, McNamara D, Palmer H, Rey JF, Saurin JC, Seitz U, Spada C, Toth E, Wiedbrauck F, Keuchel M., International core curriculum for capsule endoscopy training courses., Endoscopy International Open, 5, (6), 2017, p526 - 538
Tighe D, Smith S, O'Connor A, Breslin N, Ryan B, McNamara D., Positive relationship between infliximab and adalimumab trough levels at completion of induction therapy with clinical response rates at a tertiary referral centre, Journal of Gastroenterology and Hepatology Open, 1, (1), 2017, p4 - 10
Parihar V, Byrnes V, McNamara D., A Tale of 2 Lymphomas, Case reports in Gastroenterology, 11, (3), 2017, p593 - 598
Holleran G, Lopetuso L, Petito V, Graziani C, Ianiro G, McNamara D, Gasbarrini A, Franco Scaldaferri F, The Innate and Adaptive Immune System as Targets for Biologic Therapies in Inflammatory Bowel Disease, International Journal of Molecular Sciences, 18, (10), 2017, p2020 - 2023
Hussey M, Holleran G, Smith S, Sherlock M, McNamara D, The Role and Regulation of the 11 Beta-Hydroxysteroid Dehydrogenase Enzyme System in Patients with Inflammatory Bowel Disease. , Digestive Diseases and Sciences, 62, (12), 2017, p3385 - 3390
Brennan D.E, Hussey M, Tighe D, O'Morain C, Smith S, McNamara D., First-line tailored treatment of Helicobacter pylori in a country with increasing resistance rates., Helicobacter, XXXth International Workshop on Helicobacter & Microbiota in Inflammation and Cancer, France, September 2017, 22, ((Suppl, 1)), Wiley, 2017, pp10-
Brennan D.E, Murray DP, O'Toole J, Temperley H, O'Morain C, Smith S, McNamara D., The Urea breath test in diagnosis of Helicobacter pylori infection- could it also be a potential predictor of eradication?, Helicobacter, XXXth International Workshop on Helicobacter & Microbiota in Inflammation and Cancer, France, September 2017, 22, ((Suppl 1)), 2017, pp21-
Brennan D.E, Hussey M, Tighe D, O'Morain C, Smith S, McNamara D., Rescue treatment of Helicobacter pylori infection: Is susceptibility guided treatment the best option?, Helicobacter, XXXth International Workshop on Helicobacter & Microbiota in Inflammation and Cancer, France, September 2017, 22, ((Suppl, 1)), 2017, pp40-
Brennan D.E, O'Morain C, Smith S, McNamara D., An update on Helicobacter pylori antibiotic resistance in Ireland, Helicobacter, XXXth International Workshop on Helicobacter & Microbiota in Inflammation and Cancer, France, September 2017, 22, ((Suppl, 1)), 2017, pp60-
Hidradenitis Suppurativa and Crohn's Disease: A Case Series, Kirthi S, Hellen R, O'Connor R, Connolly M, Tobin AM, McNamara D, Irish Medical Journal, 110, (7), 2017, p618-
O'Morain N, Parihar V, O'Dwyer O, Maheshwari P, Kumar L, Fennessy S, Breslin N, B. Ryan B, McNamara D, Adherence to European Society of Gastroenterology (ESGE) polypectomy guidelines: an Irish experience, United European Gastroenterology, 25th United European Gastroenterology Week, Barcelona, Spain, October 2017, 5, (5S), 2017, ppA227-
Tighe D, Hession R, Naqeem A, Smith S, O'Connor A, Breslin N, Ryan B, McNamara D., Role for therapeutic drug monitoring in assessing secondary loss of response to maintenance Anti-TNF-α therapy in inflammatory bowel disease., United European Gastroenterology, Barcelona, Spain, October 2017, 5, (5S), 2017, ppA284-
Gallagher C, Hussey M, Tighe D, Ridge A, Kennedy M, Bailey Y, Kevans D, Tobin AM, McNamara D., Clinician's attitudes to photo-protection in inflammatory bowel disease patients on immunosuppression, 25th United European Gastroenterology Week, Barcelona, Spain, October 2017, 5, (5S), 2017, ppA286-
Stack R, O'Brien C, Nuzum T, Cummins S, O'Morain N, O'Connor A, Breslin N, Ryan B, Murphy I, McNamara D., Magnetic resonance of the small bowel with early (70 seconds) and late (7 minutes) phase post gadolinium imaging to identify fibrosis in structuring small bowel Crohn's disease, 25th United European Gastroenterology Week, October 2017, 5, (5S), 2017, ppA287-
Tighe D, Smith S, O'Connor A, Ryan B, Breslin N, McNamara D. ., Correlation of relationship between Infliximab and Adalimumab trough and antibody levels with clinical response rates at completion of induction, United European Gastroenterology, 25th United European Gastroenterology Week, Barcelona, Spain, October 2017, 2017, ppA297-
Hussey M, Holleran G, Nuzum T, Crowther S, McNamara D., The role of capsule endoscopy in the detection of small bowel tumours in a low risk population: a single centre experience, United European Gastroenterology, 25th United European Gastroenterology Week, Barcelona, Spain, October 2017, 5, (5S), 2017, ppA616-
Nuzum T, Hussey M, Khanna T, Macgregor E, Olaniyi J,Tersaruolo C, Breslin N, McNamara D. ., A SMART approach to the diagnosis of minimal hepatic encephalopathy, United European Gastroenterology, 25th United European Gastroenterology Week, Barcelona, Spain, October 2017, 2017, ppA629-
Hussey M, Holleran G, Tersarulo C, McNamara D, Feasibility of same day colon capsule endoscopy (CCE) in patients after incomplete colonoscopy, United European Gastroenterology, 25th United European Gastroenterology Week, Barcelona, Spain, 2017, ppA704-
Brennan D, Hussey M, Tighe D, O'Morain C, Smith S, McNamara D., Treatment of Helicobacter pylori infection: Will tailoring therapy first time overcome increasing failure of standard triple therapy?, United European Gastroenterology, 25th United European Gastroenterology Week, Barcelona, Spain, 2017, ppA818-
Brennan D, Hussey M, Tighe D, O'Morain C, Smith S, McNamara D., Treating Helicobacter pylori therapy second time round: Is tailoring therapy based on antimicrobial susceptibility the best option, United European Gastroenterology, 25th United European Gastroenterology Week, Barcelona, Spain, October 2017, 5, (5S), 2017, ppA818-
Tighe D, Judge C, Walsh P, Kelly M, O'Connor A, Breslin N, Ryan B, Boran G, McNamara D., A pilot study exploring the value of faecal immunological test (FIT) when investigating anaemia or occult gastrointestinal bleeding with small bowel capsule endoscopy, United European Gastroenterology, 25th United European Gastroenterology Week, Barcelona, Spain, 5, (5S), 2017, ppA825-
Grooteman K, Matheeuwsen M, Holleran G, Van Geenen E, McNamara D, Drenth J Ph. , Underutilization of endoscopic argon plasma coagulation for treatment of bleeding gastrointestinal angiodysplasias: an international multicentre cohort study, 25th United European Gastroenterology Week, Barcelona, Spain, October 2017, 5, (5S), 2017, ppA829-
Brennan D, Dalton C, Murray P, O'Toole J, Temperley H, O'Morain C, S. Smith S, McNamara D. , Can the urea breath test predict Helicobacter pylori eradication? , United European Gastroenterology, 25th United European Gastroenterology Week, Barcelona, Spain, 5, (5S), 2017, ppA817-
Brennan D, Dowd C, O'Morain C, McNamara D, Smith SM, Can bacterial virulence factors predict antibiotic resistant Helicobacter pylori infection?, World Journal of Gastroenterology, 24, (9), 2018, p971 - 981
Yousuf H, Aleem U, Egan R, Maheshwari P, Mohamad J, McNamara D., Elevated Faecal Calprotectin Levels are a Reliable Non-Invasive Screening Tool for Small Bowel Crohn's Disease in Patients Undergoing Capsule Endoscopy. , Digestive Diseases, 36, (3), 2018, p202 - 208
Holleran G, Scaldaferri F, Ianiro G, Lopetuso L , McNamara D, Mele M.C, Gasbarrini A, Cammarota G., Fecal microbiota transplantation for the treatment of patients with ulcerative colitis and other gastrointestinal conditions beyond Clostridium difficile infection: an update., Drugs of Today, 54, (2), 2018, p123 - 136
O'Connell J, Rowan C, Stack R, Harkin G, Parihar V, Chan G, Breslin N, Cullen G, Dunne C, Egan L, Harewood G, Leyden J, MacCarthy F, MacMathuna P, Mahmud N, McKiernan S, McNamara D, Mulcahy H, Murray F, O'Connor A, O'Toole A, Patchett S, Ryan B, Sheridan J, Slattery E, Doherty G, Kevans D., Golimumab effectiveness and safety in clinical practice for moderately active ulcerative colitis., European Journal of Gastroenterology, 30, (9), 2018, p1019 - 1026
Holleran G, McNamara D., An overview of angiodysplasia: management and patient prospects., Expert Review of Gastroenterology and Hepatology, 12, (9), 2018, p863 - 862
Hussey M, Holleran G, Stack R, Moran N, Tersaruolo C, McNamara D., Same-day colon capsule endoscopy is a viable means to assess unexplored colonic segments after incomplete colonoscopy in selected patients., United European Gastroenterology Journal, 6, (10), 2018, p1556 - 1562
O'Morain N, O'Gorman S, McNamara D, Ryan B., Patients attitudes toward treatment withdrawal in inflammatory bowel disease., Scandinavian Journal of Gastroenterology, 53, (10-11), 2018, p1428-
O'Morain N, McNamara D., Complete polypectomy and early detection and management of residual disease to reduce the risk of interval colorectal cancers., Acta Oncologica, 58, (sup 1), 2019, pS4 - S9
Smith SM, O'Morain C, McNamara D., Helicobacter pylori resistance to current therapies., Current Opinion in Gastroenerology, 35, (1), 2019, p6 - 13
O'Sullivan F, Raftery T, van Weele M, van Geffen J, McNamara D, O'Morain C, Mahmud N, Kelly D, Healy M, O'Sullivan M, Zgaga L., Sunshine is an important determinant of vitamin D status even among high-dose supplement users: secondary analysis of a randomised controlled trial in Crohn's disease patients., Photochemistry and Photobiology, 95, (4), 2019, p1060 - 1067
Parihar, Vikrant, Sopheno-Falco, Julia, Maheshwari, Pardeep, O'Moran, Neil, Graziadei, Vivien, O'Grady Walshe, Aishling, O'Dwyer, Orla, Kumar, Lakshman, Fennessy, Sean, Breslin, Niall, Ryan, Barbara M., McNamara, Deirdre, Adherence to European Polypectomy Guidelines: Retrospective Experience from a Tertiary Irish Hospital, Gastrointestinal Tumors, 5, (3-4), 2019, p82-89
Grooteman KV, Holleran G, Matheeuwsen M, van Geenen EJM, McNamara D, Drenth JPH, A Risk Assessment of factors for the presence of angiodysplasias during endoscopy and factors contributing to symptomatic bleeding and rebleeds. , Digestive Diseases and Sciences, 64, (10), 2019, p2923 - 2932
Judge C, Tighe D, Barry L, O'Neill J, Wong J, Shahin A, Moran N, Stack R, Hussey M, Breslin N, O'Connor A, Ryan B, Buckley M, McNamara D., Predicting Pathology on Small Bowel Capsule Endoscopy: A Good FIT., Endoscopy International Open., 7, (11), 2019, pE1379 - E1385
Christopher B, Ismail MS, Kirca M, McNamara D., Gastrointestinal manifestations in a patient with common variable immunodeficiency syndrome., Open Journal of Gastroenterology and Hepatology, 2, 2019, p18-
O'Morain NR, Syafiq MI, Shahin A, Ryan B, Crowther S, McNamara D, Dye-based chromoendoscopy following polypectomy reduces incomplete polyp resection., Endoscopy International Open, 8, (1), 2020, pE13 - E19
Ryan ÉJ, Orsi G, Boland MR, Syed AZ, Creavin B, Kelly ME, Sheahan K, Neary PC, Kavanagh DO, McNamara D, Winter DC, O'Riordan JM., Meta-analysis of early bowel resection versus initial medical therapy in patient's with ileocolonic Crohn's disease., International Journal of Colorectal Disease, 35, (3), 2020, p501 - 512
Butt WT; Ryan EJ, Boland MR, McCarthy EM, Omorogbe J, Hazel K, Bass GA, Neary PC, Kavanagh DO, McNamara D, O'Riordan JM, Strictureplasty versus bowel resection for the surgical management of fibrostenotic Crohn's disease: a systematic review and meta-analysis. , International journal of colorectal disease, 35, (4), 2020, p705 - 717
Saravanarajan K, Douglas AR, Ismail MS, Omorogbe J, Semenov S, Muphy G, O'Riordan F, McNamara D, Nakagome S, Genomic profiling of intestinal T-cell receptor repertoires in inflammatory bowel disease. , Genes and Immunity, 2020, pEpub Ahead of Print Feb 2020
Leenhardt R, Buisson A, Bourreille A, Marteau P, Koulaouzidis A, Li C, Keuchel M, Rondonotti E, Toth E, Plevris J, Eliakim R, Rosa B, Triantatyllou K, Elli L, Wurm-Johansson G, Panter S, Ellul P, Perez-Cuadrado-Robles E, McNamara D, Beaumont H, Spada C, Cavallaro F, Cholet F, Fernandez-Urien I, Kopylov U, McAlindon M, Nemeth A, Tontini GE, Yung D, Niv Y, Rahmi G, Saurin JC, Dray X., Nomenclature and semantic descriptions of ulcerative and inflammatory lesions seen in Crohn's disease in small bowel capsule endoscopy: An international Delphi consensus statement, United European Gastroenterology Journal, 8, (1), 2020, p99 - 107
Castro P.D., Harkin G., Hussey M., Christopher B., Kiat C., Chin J.L., Trimble V., McNamara D., MacMathuna P., Egan B., Ryan B., Kevans D., Abuzakouk M., Farrell R., Feighery C., Byrnes V., Mahmud N., McManus R., Prevalence of coexisting autoimmune thyroidal diseases in coeliac disease is decreasing, United European Gastroenterology Journal, 8, (2), 2020, p148 - 156
Ismail MS, Aoko O, Sihag S, Connolly E, Omorogbe J, Semenov S, O'Morain N, O'Connor A, Breslin N, Ryan B, McNamara D. , Lower gastrointestinal symptoms and symptoms-based triaging systems are poor predictors of clinical significant disease on colonoscopy., BMJ Open Gastroenterology, 7, (1), 2020, pe000221-
Judge, C, McGettigan N, Ryan T, Hazel K, Singh P, Parihar V, Stack R, O'Connor A, Dunne C, Cullen G, Egan L, Harewood G, MacCarthy F, McKiernan S, Mulcahy H, Murray F, Patchett S, Sheridan J, Cheriyan D, Farrell R, Keohane J, Kelly O, McNamara D, Ryan B, O'Morain C, Sengupta S, O'Toole, A, Buckley M, McCarthy J, Doherty G, Kevans D, Slattery E, Irish data on the safety and efficacy of vedolizumab in the treatment of inflammatory bowel disease. , Scandinavian Journal of Gastroenterology, 55, (7), 2020, p786 - 794
Naughton AP, Ryan ÉJ, Bardon CT, Boland MR, Aherne TM, Kelly ME, Whelan M, Neary PC, McNamara D, O'Riordan JM, Kavanagh DO, Endoscopic management versus transanal surgery for early primary or early locally recurrent rectal neoplasms-a systematic review and meta-analysis, International Journal of Colorectal Disease, 35, (12), 2020, p2347 - 2359
Douglas AR, Holleran G, Smith SM, McNamara D, Shared changes in angiogenic factors across gastrointestinal vascular conditions: A pilot study, World Journal Gastrointestinal Pharmacology and Therapeutics, 11, (3), 2020, p40 - 47
Sihag S, Tan B, Semenov S, Ismail MS, Ryan B, O'Connor A, Breslin N, Douglas R, McNamara D, Development of significant disease in a cohort of patients with non-specific enteritis on capsule endoscopy: clinical suspicion and a high base line Lewis score are predictive of Crohn's disease., BMC Gastroenterology, 20, (1), 2020, p341-
O'Connor A, Bowden A, Farrell E, Weininger J, Crowther S, McNamara D, Ridgway P, O'Morain C, Risk of Progression of Gastric Intestinal Metaplasia Is Significantly Greater When Detected in Both Antrum and Body, Digestive Disease and Science, 66, 2020, p3470 - 3475
Zaslona Z, Flis E, Nulty C, Kearney J, Fitzgerald R, Douglas AR, McNamara D, Smith S, O'Neill LAJ, Creagh EM., Caspase-4: A Therapeutic Target for Peptic Ulcer Disease, Immunohorizons, 4, (10), 2021, p627 - 633
Nyssen OP, Bordin D, Tepes B, Pérez-Aisa Á, Vaira D, Caldas M, Bujanda L, Castro-Fernandez M, Lerang F, Leja M, Rodrigo L, Rokkas T, Kupcinskas L, Pérez-Lasala J, Jonaitis L, Shvets O, Gasbarrini A, Simsek H, Axon ATR, Buzás G, Machado JC, Niv Y, Boyanova L, Goldis A, Lamy V, Tonkic A, Przytulski K, Beglinger C, Venerito M, Bytzer P, Capelle L, Milosavljević T, Milivojevic V, Veijola L, Molina-Infante J, Vologzhanina L, Fadeenko G, Ariño I, Fiorini G, Garre A, Garrido J, F Pérez C, Puig I, Heluwaert F, Megraud F, O'Morain C, Gisbert JP; Hp-EuReg Investigators, European Registry on Helicobacter pylori management (Hp-EuReg): patterns and trends in first-line empirical eradication prescription and outcomes of 5 years and 21,533 patients, Gut, 70, (1), 2021, p40 - 54
Bass GA, Pourlotfi A, Donnelly M, Ahl R, McIntyre C, Flod S, Cao Y, McNamara D, Sarani B, Gillis AE, Mohseni S., Bile Duct Clearance and Cholecystectomy for Choledocholithiasis: Definitive Single-Stage Laparoscopic Cholecystectomy with Intra-Operative ERCP versus Staged Procedures, Journal of Trauma and Acute Care Surgery, 90, (2), 2021, p240 - 248
R Leenhardt, A Koulaouzidis, D McNamara, M Keuchel, R Sidhu, ME McAlindon, JC Saurin, R Eliakim, I Fernandez-Urien Sainz, JN Plevris, G Rahmi, E Rondonotti, B Rosa, C Spada, E Toth, C Houdeville, C Li, M Robaszkiewicz, P Marteau, X Dray., A guide for assessing the clinical relevance of findings in small bowel capsule endoscopy: analysis of 8064 answers of international experts to an illustrated script questionnaire, Clinics and Research in Hepatology and Gastroenterology, 45, (6), 2021, p101637-
Clarke N, Kearney PM, Gallagher P, McNamara D, O'Morain CA, Sharp L., Negative emotions and cancer fatalism are independently associated with uptake of Faecal Immunochemical Test-based colorectal cancer screening: Results from a population-based study., Preventive Medicine, 145, 2021, p106430-
Ismail MS, Semenov S, McNamara D., The utility of faecal and urine biomarkers for small bowel diseases., Current Opinion in Gastroenterology, 37, (3), 2021, p284 - 294
Purification of Total RNA from Stomach Tissue Biopsies. in, Methods Mol Biol. 2283, 2021, pp51 - 59, [FitzGerald R, Devapal M, Hickey JJ, McNamara D, Kelleher D, Smith SM.]
Endoscopic Detection of Helicobacter pylori by the Rapid Urease Test in, editor(s)Smith SI. , Helicobacter Pylori. Methods in Molecular Biology, vol 2283., New York, USA, Humana, New York, NY, 2021, pp37 - 43, [Parihar V, McNamara D.]
Molecular Detection of Antibiotic-Resistant Helicobacter pylori. in, Methods Mol Biol. 2283, 2021, pp29 - 36, [Brennan D, O'Morain C, McNamara D, Smith SM.]
Megraud F, Bruyndonckx R, Coenen S, Wittkop L, Huang TD, Hoebeke M, Bénéjat L, Lehours P, Goossens H, Glupczynski Y; European Helicobacter pylori Antimicrobial Susceptibility Testing Working Group., Helicobacter pylori resistance to antibiotics in Europe in 2018 and its relationship to antibiotic consumption in the community, Gut, Apr 9, (gutjnl-2021-324032), 2021
Ismail MS, Murphy G, Semenov S, McNamara D., Comparing Colon Capsule Endoscopy To Colonoscopy; A Symptomatic Patient's Perspective, BMC Gastroenterology, 22, (31), 2022
Pariente B, Torres J, Burisch J, Arebi N, Barberio B, Duricova D, Ellul P, Goldis A, Kaimakliotis I, Katsanos K, Krznaric , McNamara D, Pedersen N, Sebastian S, Azahaf M, Weimers P, Lung P, Lacognata C, Horak M, Christodoulou D, Domislovic V, Murphy I, Lambert J, Ungaro R, Colombel JF, Mary JY, Validation and update of the Lémann index to measure cumulative structural bowel damage in Crohn's disease., Gastroenterology, 161, (3), 2021, p853 - 864
Dray X, Riccioni ME, Wurm Johansson G, Keuchel M, Perrod G, Martin A, Tortora A, Nemeth A, Baltes P, Pérez-Cuadrado-Robles E, Chetcuti Zammit S, Lee PS, Leenhardt R, Koulaouzidis A; I CARE Group, Feasibility and diagnostic yield of small-bowel capsule endoscopy in patients with surgically altered gastric anatomy: the SAGA study, Gastrointestinal Endoscopy, 2021
Ismail MS, Semenov S, Sihag S, Manoharan T, Douglas AR, Reill P, Kelly M, Boran G, O'Connor A, Breslin N, O'Donnell S, Ryan B, McNamara D, Colon capsule endoscopy is a viable alternative to colonoscopy for the investigation of intermediate- and low-risk patients with gastrointestinal symptoms: results of a pilot study, Endoscopy International Open, 9 , (6), 2021, pE965 - E970
Semenov S, Ismail MS, McNamara D, Impairment of colorectal cancer screening during the COVID-19 pandemic. , Lancet Gastroenterology Hepatology, 6, (6), 2021, p426-
Lia C.M.J. Goltstein LCMJ, Grooteman KV, Rocco A, Holleran G, Frago S, Paulo S. Salgueiro PS, Aparicio T, Scaglione G, Zammit SC, Prados-Manzano R, Benamouzig R, Nardone G, McNamara D, Benallaoua M, Michopoulos S, Sidhu R, Kievit W, PhD, Drenth JPH, Erwin J.M. van Geenen EJM, Effectiveness and Predictors of Response to Somatostatin Analogues in Patients with Severe Gastrointestinal Bleeding Due to Angiodysplasias, Lancet Gastroenterology and Hepatology, 8, 2021, pS2468 - 1253
Bujanda L, Nyssen OP, Vaira D, Saracino IM, Fiorini G, Lerang F, Georgopoulos S, Tepes B, Heluwaert F, Gasbarrini A, Rokkas T, Bordin D, Smith S, Lamy V, Caldas M, Resina E, Muñoz R, Cosme A, Puig I, Megraud F, O'Morain C, Gisbert JP and on behalf of the Hp-EuReg Investigators., Antibiotic Resistance Prevalence and Trends in Patients Infected with Helicobacter pylori in the Period 2013-2020: Results of the European Registry on H. pylori Management (Hp-EuReg), Antibiotics, 10, (9), 2021, p1058-
Brennan DE, O'Morain C, McNamara D, Smith SM, Brennan DE, O'Morain C, MCombined antrum and corpus biopsy protocol improves Helicobacter pylori culture success., World Journal Gastrointestinal Pathophysiology, 13, (1), 2022, p34 - 40
Elli L, Marinoni B, Sidhu R, Bojarski C, Branchi F, Tontini GE, Chetcuti Zammit S, Khater S, Eliakim R, Rondonotti E, Saurin JC, Bruno M, Buchkremer J, Cadoni S, Cavallaro F, Dray X, Ellul P, Urien IF, Keuchel M, Kopylov U, Koulaouzidis A, Leenhardt R, Baltes P, Beaumont H, Marmo C, McNamara D, Mussetto A, Nemeth A, Cuadrado Robles EP, Perrod G, Rahmi G, Riccioni ME, Robertson A, Spada C, Toth E, Triantafyllou K, Wurm Johansson G, Rimondi A on behalf of the International CApsule endoscopy REsearch (I-CARE) Group. Nomenclature and Definition of Atrophic Lesions in Small Bowel Capsule Endoscopy: An International Delphi Consensus Statement of the International CApsule Endoscopy REsearch (I-CARE) Group., Nomenclature and Definition of Atrophic Lesions in Small Bowel Capsule Endoscopy: An International Delphi Consensus Statement of the International CApsule Endoscopy REsearch (I-CARE) Group. , Diagnostics, 12, (7), 2022, p1704-
Sciberras M, Conti K, Elli L, Scaramella L, Riccioni ME, Marmo C, Cadoni S, McAlindon M, Sidhu R, O'hara F, McNamara D, Rondonotti E, Piccirelli S, Spada C, Bruno M, Keuchel M, Baltes P, Calleja N, Valdivia PC, de'Angelis GL, Margalit-Yehuda R, Koulaouzidis A, Dray X, Ellul P; International CApsule endoscopy REsearch (I-CARE) Group., Score reproducibility and reliability in differentiating small bowel subepithelial masses from innocent bulges. . doi: 10.1016/j.dld.2022.06.027., Digestive and Liver Disease, 4, (22), 2022, p1586-90-
Sciberras M, Conti K, Elli L, Scaramella L, Riccioni ME, Marmo C, Cadoni S, McAlindon M, Sidhu R, O'hara F, McNamara D, Rondonotti E, Piccirelli S, Spada C, Bruno M, Keuchel M, Baltes P, Calleja N, Valdivia PC, de'Angelis GL, Margalit-Yehuda R, Koulaouzidis A, Dray X, Ellul P; International CApsule endoscopy REsearch (I-CARE) Group. , Score reproducibility and reliability in differentiating small bowel subepithelial masses from innocent bulges. , Digestive and Liver Disease, 54, (10), 2022, p1403 - 1409
Peyrin-Biroulet L, Rahier JF, Kirchgesner J, Abitbol V, Sebastian S, Armuzzi A, Karmiris K, Gisbert JP, Bossuyt P, Helwig U, Burisch J, Yanai H, Doherty GA, Magro F, Molnar T, Löwenberg M, Halfvarson J, Zagorowicz E, Rousseau H, Baumann C, Baert F, Beaugerie L; I-CARE Collaborator Group., I-CARE, a European Prospective Cohort Study Assessing Safety and Effectiveness of Biologics in Inflammatory Bowel Disease. , Clinical Gastroenterology and Hepatology, S1542-3565, (22), 2022, p916 - 918
Leenhardt R, Koulaouzidis A, Histace A, Baatrup G, Beg S, Bourreille A, de Lange T, Eliakim R, Iakovidis D, Dam Jensen M, Keuchel M, Margalit Yehuda R, McNamara D, Mascarenhas M, Spada C, Segui S, Smedsrud P, Toth E, Tontini GE, Klang E, Dray X, Kopylov U., Key research questions for implementation of artificial intelligence in capsule endoscopy., Therapeutic Advances in Gastroenterology, 15, 2022, p17562848221132683.
Baltes P, Dray X, Riccioni ME, Pérez-Cuadrado-Robles E, Fedorov E, Wiedbrauck F, Zammit SC, Cadoni S, Bruno M, Rondonotti E, Johansson GW, Mussetto A, Beaumont H, Perrod G, McNamara D, Plevris J, Spada C, Pinho R, Rosa B, Hervas N, Leenhardt R, Marmo C, Esteban-Delgado P, Ivanova E, Keuchel M; International CApsule endoscopy Research (I-CARE) Meckel study group, Small-bowel capsule endoscopy in patients with Meckel`s diverticulum: clinical features, diagnostic workup, and findings. A European multicenter I-CARE study., Gastrointestinal Endoscopy, 2022, pS0016 - 5107
Pennazio M, Rondonotti E, Despott EJ, Dray X, Keuchel M, Moreels T, Sanders DS, Spada C, Carretero C, Cortegoso Valdivia P, Elli L, Fuccio L, Gonzalez Suarez B, Koulaouzidis A, Kunovsky L, McNamara D, Neumann H, Perez-Cuadrado-Martinez E, Perez-Cuadrado-Robles E, Piccirelli S, Rosa B, Saurin JC, Sidhu R, Tacheci I, Vlachou E, Triantafyllou K. Small-bowel capsule endoscopy and device-assisted enteroscopy for diagnosis and treatment of small-bowel disorders: European Society of Gastrointestinal Endoscopy (ESGE) Guideline - Update 2022., Small-bowel capsule endoscopy and device-assisted enteroscopy for diagnosis and treatment of small-bowel disorders: European Society of Gastrointestinal Endoscopy (ESGE) Guideline - Update 2022., Endoscopy, 55, (1), 2023, p58 - 95
McCarthy E, Sihag S, Deane C,Walker C, Semenov S, Ryan B,Breslin N, O'Connor A, O'Donnell Sarah, McNamara D , Single or double headed capsules for the investigation of suspected small bowel bleeding: Are two heads better than one., Frontiers in Gastroenterology, 1, 2022, p1071797
Clarke N, Hayes L, McQueen A, Gallagher P, Kearney PM, McNamara D, O'Morain CA, von Wagner C, Mooney T, Sharp L., The role of defensive information processing in population-based colorectal cancer screening uptake., Cancer, 2023, p1 - 8
Semenov S, Costigan C, Ismail MS, McNamara D., Low Colon Capsule Endoscopy (CCE) False Negative Rate for Polyps Excluding Reader Error., Diagnostics, 13, (1), 2022, p56-
Donnelly M, Ryan OK, Ryan ÉJ, Bass GA, Kelly ME, McNamara D, Whelan M, Neary PC, O'Riordan JM, Kavanagh DO. , Comparison of restorative proctocolectomy with and without defunctioning loop ileostomy in patients with ulcerative colitis - A systematic review and meta-analysis, Journal of Crohn's and Colitis, 2023, pOnline ahead of print.
Deane C, Walker C, Ryan B, O'Connor A, O'Donnell S, Breslin N, McNamara D. , High diagnostic yield despite a lower completion rates for inpatient versus outpatient colon and pan-intestinal capsule endoscopy: a nested case-control study., BMC Gastroenterology, 23, (1), 2023, p61-
Chetcuti Zammit S, Yadav A, McNamara D, Bojorquez A, Carretero-Ribón C, Keuchel M, Baltes P, Margalit-Yehuda R, Kopylov U, Sidhu R, Marmo C, Riccioni ME, Dray X, Leenhardt R, Rondonotti E, Giulia S, Micallef K, Ellul P; ICARE, Where does capsule endoscopy fit in the diagnostic algorithm of small bowel intussusception?, Digestive and Liver Disease, 2023, pJun 30:S1590-8658(23)00665-5
O'Hara F, Walker C, McNamara D, Patency testing improves capsule retention rates but at what cost? A retrospective look at patency testing., Fronteirs in Medicine, (10), 2023
Donnelly M, Driever D, Ryan ÉJ, Elliott JA, Finnegan J, McNamara D, Murphy I, Conlon KC, Neary PC, Kavanagh DO, O'Riordan JM., Obesity, Sarcopenia and Myosteatosis: Impact on Clinical Outcomes in the Operative Management of Crohn's Disease., Inflammatory Bowel Disease, 30, (9), 2024, 1517, p1528
O'Hara FJ, McNamara D, Capsule endoscopy with artificial intelligence-assisted technology: Real-world usage of a validated AI model for capsule image review, Endoscopy International Open, 11, (10), 2023, pE970 - E975
Ouazana S, Baltes P, Toth E, Lüttge H, Nemeth A, Beaumont H, González-Suárez B, Lee PS, Carretero C, Yehuda RM, Elli L, Spada C, Bruno M, Mussetto A, Valdivia PC, Becq A, Corbett G, Martin A, Robertson A, Benamouzig R, Despott E, Riccioni ME, Sidhu R, Calavas L, Ellul P, Finta A, Triantafyllou K, Rondonotti E, Kirchgesner J, Elosua A, McNamara D, Dray X., Endoscopic Gastrointestinal Placement of Capsule Endoscopy to Investigate the Small Bowel: a Multicentric European Retrospective Series of 630 Procedures in Adult Patients., Gastrointestinal Endoscopy, (Jan 23:S0016-5107(2), 2024, pEpub ahead of print. PMID: 382
McHugh FT, Ryan ÉJ, Ryan OK, Tan J, Boland PA, Whelan MC, Kelly ME, McNamara D, Neary PC, O'Riordan JM, Kavanagh DO., Management Strategies for Malignant Left-Sided Colonic Obstruction: A Systematic Review and Network Meta-analysis of Randomized Controlled Trials and Propensity Score Matching Studies, Diseases of the Colon and Rectum, 2024, April 1, pon line ahead of print
Conor Costigan, Aoife M O'Sullivan, Jim O'Connell, Shreyashee Sengupta, Thomas Butler, Stephen Molloy, Fintan John O'Hara, Barbara Ryan, Niall Breslin, Sarah O'Donnell, Anthony O'Connor, Sinead Smith, Deirdre McNamara, Helicobacter pylori: High dose amoxicillin does not improve primary or secondary eradication rates in an Irish cohort, World Journal of Clinical Cases, 12, (6), 2024, p0 - 0
O'Hara F, Costigan, C, McNamara D, Confirmation of functional patency using the patency capsule. A prospective study using an extended time protocol to improve rates of completed patency, United European Gastroenterology Journal, United European Gastroenterology Week, Denmark, October 2023, 11, (8), 2023, ppS682
Butler T, Molloy S, Costigan C, Van Der Merwe K, Parihar V, Semenov S, S. Hough S, Kevans D, Tighe D, McNamara D, Smith S, Irish Helicobacter Pylori antibiotic resistance surveillance to guide clinical practice., United European Gastroenterology Journal, United European Gastroenterology Week, Denmark, October 2023, 11, (8), 2023, ppS710
S. Molloy, T. Butler, I. Merrigan, V. Parihar, K. Van Der Merwe, D. McNamara, S. Smith1, Evaluation of molecular-based Clarithromycin resistance testing in Helicobacter pylori compared to culture-based testing in an Irish Healthcare setting, United European Gastroenterology Journal, United European Gastroenterology Week, Denmark, October 2023, 11, (8), 2023, ppS711
J. Doherty, A. Ryan , E. Quinn, J. Dolan, R. Corcoran, F. O'Hara , Y. Bailey, D. McNamara, G. Doherty, D. Kevans, HLA-DQA105 Allele carriage and Anti-TNF therapy persistence in inflammatory bowel disease, United European Gastroenterology Journal, United European Gastroenterology Week, Denmark, October 2023, 11, (8), 2023, ppS870
R. Ballester-Clau , C. Costigan , A. M. O'Sullivan , F. O'Hara , S. Sengupta , D. McNamara, Role of a novel peptide-based haemostatic agent in early gastrointestinal bleeding management: why not expand the current toolbox?, Endoscopy, ESGE Days, Dublin, April 2023, 55, (S2), 2023, pp56 - 57
J. O'Connell , C. Costigan , F. O'Hara , D. McNamara, Reaching hidden depths. A correlation between small bowel capsule endoscopy transit and depth of insertion on anterograde device assisted enteroscopy, Endoscopy, ESGE Days, Dublin, April 2023, 55, (S2), 2023, ppS167 - S168
C. Costigan , C. Walker , J. O'Connell , F. O'Hara , Y. Bailey , T. Manoharan , D. McNamara, Cloud Technology And Capsule Endoscopy: A single Centre Users' Experience Of Online Video Analysis And Reporting, Endoscopy, ESGE Days 2023, Dublin, April 2023, 55, (S2), 2023, ppS354-
F. O'Hara , C. Costigan , J. O'Connell , D. McNamara, General Anaesthesia or Conscious Sedation for Enteroscopy: Patient Reported Experience, Endoscopy, ESGE Days, Dublin, April 2023, 55, (S02), 2023, ppS360-
F. O'Hara , C. Walker , J. O'Connell , C. Costigan , D. McNamara, Safety Profile of Device Assisted Enteroscopy: A Retrospective Analysis of Interventions and Complication Rates, Endoscopy, ESGE Days, Dublin, April 2023, 55, (S02), 2023, ppS371-
Costigan C, Walker C, O'Connell J, Omallao E, Manoharan T, Eagle N, Bailey Y, O'Hara F, Mc Namara D., A single-center users' experience of remote online video analysis and reporting, Endoscopy International Open, 12, (2), 2024, p227 - 230
A. M. O'Sullivan, T. J. Butler, C. Costigan, D. McNamara, Comparing capsule endoscopy findings with radiological reports of bowel wall thickening, Endoscopy, ESGE Days 2024, Berlin, April 2024, 56, (02), 2024, ppS211-
C. Costigan, A. M. O'Sullivan, J. O'Connell, E. Omallao, N. Eagle, Y. Bailey, F. O'Hara, D. McNamara, One Day Bowel Preparation for Colon Capsule Endoscopy is as Efficacious as Traditional Split Prep Regimen and may Improve Patient Satisfaction and Therefore Compliance, Endoscopy, ESGE Days, Berlin, April 2024, 56, (S02), 2024, ppS330-
C. Costigan, F. O'Hara, A. M. O'Sullivan, I. Osmerova, A. Carroll, E. Gibbons, C. Goulding, M. Hussey, G. Holleran, B. Hall, M. Buckley, D. McNamara, Patency testing prior to Video Capsule Endoscopy: An Irish Experience, Endoscopy, ESGE Days 2024, Berlin, 56, (S2), 2024, ppS331-
R. Ballester-Clau, C. Costigan, S. Sengupta, J. O'Connell, T. Manoharan, D. McNamara, Glasgow-Blatchford score predicts findings on video capsule endoscopy in patients admitted with obscure overt gastrointestinal bleeding. A retrospective analysis, Endoscopy, ESGE Days 2024, Berlin, April 2024, 56, (S02), 2024, ppS374 - S375
J. O'Connell, R. Ballester-Clau, C. Costigan, E. Omallao, F. O'Hara, D. McNamara, Retrospective review of the role of capsule endoscopy in cases of obscure GI bleeding, Endoscopy, ESGE Days 2024, Berlin, April 2024, 56, (S02), 2024, ppS431-
R. Ballester-Clau, C. Costigan, S. Sengupta, J. O'Connell2 T. Manoharan, D. McNamara, Variations in clinical parameters suggest patients with suspected small bowel bleeding deteriorate quickly over time and that close and regular monitoring and the early introduction of small bowel investigations is warranted, Endoscopy, ESGE Days 2024, Berlin, April 2024, 56, (S02), 2024, ppS433-
S. Sengupta, D. McNamara, Should our approach to anticoagulation management in endoscopy change from a primarily procedure based risk stratification to a patient focused one ?, Endoscopy, ESGE Days 2024, Berlin, April 2024, 56, (S02), 2024, ppS435-
Walker C, Butler TJ, Deane C, O'Hara F, Ryan BM, O'Connor A, O'Donnell S, Breslin N, McNamara D, Angiopoientin-2 a potential marker of fibrosis in chronic liver disease., Digestive Disease Week, Washington, USA, May 2023, 164, (6), 2023, ppS1374-
Baltes P, Dray X, Riccioni M.E, Pérez-Cuadrado-Robles E, Fedorov E, Wiedbrauck F, Chetcuti Zammit S, Cadoni S, Bruno M, Rondonotti E, Wurm Johansson G, Mussetto A, Beaumont H, Perrod G, McNamara D, Plevris J, Spada C, Pinho R, Rosa B, Hervás N, Carretero C , Tontini G.E, Keuchel M., Capsule endoscopy in patients with Meckel's Diverticulum-Clinical features and diagnostic findings. A European multicentre study., Endoscopy, ESGE Days, Prague, Czech Republic, April 2022, 54, (S1), 2022, ppS33-
Sciberras M, Gatt K, Elli L, Scaramella L, Riccioni M.E, Marmo C, Cadoni S, McAlindon M, Sidhu R, Ohara F, McNamara D, Rondonotti E, Piccerelli S, Spada C, Bruno M, Keuchel M, Baltes P, Calleja N, Margalit R, Koulaouzidis A, Cortegoso Valdivia P, de Angelis G, Dray X, Ellul P., SCORE REPRODUCIBILITY AND RELIABILITY IN DIFFERENTIATING SMALL BOWEL SUBEPITHELIAL MASSES FROM INNOCENT BULGES, Endoscopy, ESGE Days, Praque, April 2022, 54, (S1), 2022, ppS34-
Elli L, Marinoni B, Baltes P, Beaumont H, Bojarski C, Branchi F, Bruno M, Buchkremer J, Cadoni S, Cavallaro F, Chetcuti Zammit S, Dray X, Eliakim R, Ellul P, Fernandez Urien I, Keuchel M, Khater S, Kopylov U, Koulaouzidis A, Leenhardt R , Marmo C, McNamara D, Mussetto A, Nemeth A, Cuadrado Robles E.D , Perrod G, Rahmi G, Riccioni M.E, Robertson A , Rondonotti E, Saurin J.C, Sidhu R , Spada C, Toth E , Tontini G.E, Triantafyllou K, Johansson G. W, Rimondi A, NOMENCLATURE AND SEMANTIC DESCRIPTION OF ATROPHIC LESIONS IN SMALL BOWEL CAPSULE ENDOSCOPY: AN INTERNATIONAL DELPHI CONSENSUS STATEMENT, Endoscopy, ESGE Days 2022, Praque, April 2022, 54, (S1), 2022, ppS34 - S35
Armstrong P.R, Butler T, Manoharan T, McNamara D, COLON CAPSULE ENDOSCOPY; TIME TO RAISE THE THRESHOLD FOR ONWARD REFERRAL FOR COLONOSCOPY, Endoscopy, ESGE Days 2022, Prague czechoslovakia, April 2022, 54, (S1), 2022, ppS116-
Doherty J, Morain N.O, Stack R, Hara F.O, Corcoran R, Bailey Y, McNamara D, Kevans D, Doherty G., THE DUBLIN SCORE IS A USEFUL TOOL FOR PREDICTING DISEASE COURSE IN PATIENTS WITH ULCERATIVE COLITIS, Endoscopy, ESGE Days 2022, Prague czechoslovakia, April 2022, 54, (S1), 2022, ppS122-
O'Hara F, Walker C, McNamara D., RETROSPECTIVE ANALYSIS OF THE UTILITY OF THE PATENCY CAPSULE IN CAPSULE ENDOSCOPY, Endoscopy, ESGE Days 2022, Prague Czechoslovakia, April 2022, 54, (S1), 2022, ppS167-
Deane C, Walker C, Ryan B, O'Connor A, O'Donnell S, Breslin N, McNamara D., REDUCED COMPLETION RATES FOR INPATIENT VERSUS OUTPATIENT COLON & PANINTESTINAL VIDEO CAPSULE ENDOSCOPY; A NESTED CASE-CONTROL STUDY, Endoscopy, ESGE Days 2022, Praque Czech Republic, April 2022, 54, (S1), 2022, ppS260-
F. O'Hara, C. Walker, D McNamara., ORALLY ADMINISTERED PEPPERMINT OIL SOLUTION AS AN AID TOPREVENT DELAYED GASTRIC EMPTYING IN CAPSULE ENDOSCOPY, United European Gastroenterology Journal, United European Gastroenterology Week, Vienna, October 2022, 10, 2022, ppS279 - S280
FitzGerald, D. McNamara, S. Smith, THE NOTCH PATHWAY TRANSCRIPTION FACTOR HES1 REGULATESEXPRESSION OF THE PRO-INFLAMMATORY CYTOKINE IL-8 DURINGH. PYLORI INFECTIONR., United European Gastroenterology Journal, United European Gastroenterology Week, Vienna Austria, October 2022, 10, 2022, ppS289-
T. Butler1, P. Armstrong, M.T. Gregg, S. Smith, D. McNamara, AN EVOLVING RESISTANT PANDEMIC. RISING COMMUNITY H. PYLORITREATMENT FAILURE TO CLARITHROMYCIN-BASED TRIPLE THERAPY:AN OBSERVATIONAL STUDY, United European Gastroenterology Journal, United European Gastroenterology Week, Vienna, October 2022, 10, 2022, pp563-
C. Walker, F. O'Hara, R. Connaughton, S. Anwar, R. Ballester, B. Ryan , A. O'Connor, S. O'Donnell, N. Breslin, D. McNamara., HIGHER LEVELS OF OPIOID ANALGESIA AND SEDATION ARE REQUIRED TO MAINTAIN ADEQUATE PATIENT COMFORT AND IMPROVE PROCEDURE SUCCESS IN DEVICE ASSISTED ENTEROSCOPY.I S CONSCIOUS SEDATION ENOUGH?, United European Gastroenterology Journal, United European Gastroenterology Week, Vienna, October 2022, 10, 2022, pp1043-
F. O'Hara, C. Walker, D McNamara., CAPSULE ENDOSCOPY WITH ARTIFICIAL INTELLIGENCE ASSISTED TECHNOLOGY: AI IN CLINICAL PRACTICE, United European Gastroenterology Journal, United European Gastroenterology Week, Vienna, October 2022, 10, 2022, pp1049-
C. Costigan R. Bourke, D. McNamara, AUTOMATED PROMPTS RESULT IN HIGH PROKINETIC USE WITHOUT IMPROVING COLON CAPSULE PERFORMANCEC, United European Gastroenterology Journal, United European Gastroenterology Week, Vienna, October 2022, 10, 2022, pp1051-
Dray X, Riccioni ME , Wurm Johansson G , Keuchel M , Perrod G , Martin A , Tortora A , Nemeth A , Baltes P, Pérez-Cuadrado-Robles E, Chetcuti Zammit S, Lee PS, Cadoni S, Fernández-Urien Sainz I McNamara D, Margalit-Yehuda R, Beaumont H, Mussetto A, Spada C, Elli L, Bruno M, Rondonotti E, Robertson A, Cortegoso Valdivia P, Leenhardt R O.b.o. the European Capsule Endoscopy Working Group, Koulaouzidis A., FEASIBILITY AND DIAGNOSTIC YIELD OF SMALL BOWEL CAPSULE ENDOSCOPY IN PATIENTS WITH SURGICALLY ALTERED GASTRIC ANATOMY, Endoscopy, ESGE Days, Virtual, April 2021, 53, (S1), 2021
O'Hara F , Seminov S , McNamara D., BALLOON DILATATION OF PROXIMAL SMALL BOWEL CROHN'S DISEASE STRICTURES DURING ANTEGRADE DOUBLE BALLOON ENTEROSCOPY, Endoscopy, ESGE Days 2021, Virtual, April 2021, 53, (S1), 2021, ppS8-
Semenov S, MS Ismai, O'Hara F, O'Donnell S, O'Connor A, Breslin N, Ryan B , McNamara D, THE TRUE FALSE NEGATIVE RATE OF COLON CAPSULE ENDOSCOPY IS LOW, Endoscopy, ESGE Days 2021, Virtual, April 2021, 53, (S1), 2021, ppS101-
Walker C, Carroll A, McKearney E, Deane C, Breslin N, McNamara D, O'Donnell S, Ryan B, O'Connor A, AN EVALUATION OF OUTCOMES FOLLOWING ENDOSCOPIC BALLOON DILATATION OF STRICTURES IN CROHN'S DISEASE PATIENTS IN A TERTIARY IRISH HOSPITAL, Endoscopy, ESGE Days, Virtual, March 2021, 53, (S1), 2021, ppS102-
O'Hara F , Seminov S1, McNamara D, AUDIT OF THE USE OF PROKINETICS TO IMPROVE COMPLETION RATES OF SMALL BOWEL CAPSULE ENDOSCOPY, Endoscopy, ESGE Days 2021, Virtual, March 2021, 53, (S1), 2021, ppS130-
O'Hara F, Seminov S, McNamara D, THE USE OF BOWEL PREPARATION TO IMPROVE DIAGNOSTIC YIELD IN SMALL BOWEL CAPSULE ENDOSCOPY. A PROSPECTIVE RANDOMISED NESTED CASE CONTROL STUDY OF MOVIPREP VERSUS DIETARY MEASURES, Endoscopy, ESGE Days 2021, Virtual, March 2021, 53, (S1), 2021, ppS131-
Matthews T, Breslin N, McNamara D, O'Connor A, Sarah O'Donnell, Ryan B, POLYP EXCISION RATES POST-COVID-19: PERSONAL PROTECTIVE EQUIPMENT DOES NOT IMPAIR PERFORMANCE, Endoscopy, ESGE Days 2021, Virtual, March 2021, 53, (S1), 2021, ppS133-
Semenov S, Ismail SI, Sihag S, O'Donnell S, O'Connor A, Breslin N, Ryan, B, McNamara D, Virtual. Application of a simple imaging bundle could improve neoplastic poly detection on CCE., United European Gastroenterology Journal, United European Gastroenterology Week, Virtual, October 2021, 9, (S8), 2021, ppA857-
Matthews T, Anwar S, Ballester R , Breslin N, McNamara D, O'Connor A, Ryan B, O'Donnell S, Eosinophilic oesophagitis: Increasing prevalence over two decades at an Irish tertiary referral centre., United European Gastroenterology Journal, United European Gastroenterology Week 2021, Virtual, October 2021, 9, (S8), 2021, ppA288-
FitzGerald R, Devapal M, Saini V, Hickey J, McNamara D, Smith S., Helicobacter pylori infection inhibits expression and function of the polycomb repressive complex., United European Gastroenterology Journal, United European Gastroenterology Week 2021, Virtual, October 2021, 9, (S8), 2021, ppA315-
Sihag S, Omallao E, Semenov S, McCarthy EM, Matthews T, Breslin N, O'Connor A, Ryan B, O'Donnell, Anwar S, Ballister R, McNamara D., The patient experience and clinical efficacy of a novel virtual C13UBT service at an Irish tertiary referral centre during the COVID-19 pandemic, United European Gastroenterology Journal, United European Gastroenterology Week 2021, Virtual, October 2021, 9, (S8), 2021, ppA317-
O'Hara F, McDonald I, Quidwai S, Ryan B, O Connor A, O'Donnell S, Breslin N, McNamara D, Quality of life outcomes in anaemic patients with suspected small bowel bleeding, United European Gastroenterology Journal, United European Gastroenterology Week 2021, Virtual, October 2021, 9, (S8), 2021, ppA361-
Walker C, Deane C, Doran J, Ryan B, O'Connor A, O'Donnell S, Breslin N, McNamara D, The correlation between capsule endoscopy and subsequent device assisted enteroscopy findings of small bowel vascular lesions, United European Gastroenterology Journal, United European Gastroenterology Week 2021, Virtual, October 2021, 9, (S8), 2021, ppA363-
McDonald I, Bailey Y, O'Connor A, Breslin N, O'Donnell S, Ryan B, McNamara D, Dose escalation and discontinuation rates differ due to loss of response in older and younger IBD cohorts, United European Gastroenterology Journal, United European Gastroenterology Journal, Virtual, October 2021, 9, (S8), 2021, ppA493-
McCarthy EM, Sihag S, Semenov S, Grainger R, Deane C, Walker C, Malone R, Ballester R, Anwar S, Ryan B, Breslin N, O'Donnell S, O Connor A, McNamara D, A prospective comparison of two headed and single headed capsules for the investigation of suspected small bowel bleeding. Are two heads better than one?, UEGJ, United European Gastroenterology Week, Virtual, October 2021, 9, (S8), 2021, pp864-
Semenov S, Manoharan T, Ismail M.S, Sihag S, Hazel K., Molloy D, , Ryan B, Breslin N, O'Connor A,, O'Donnell S, McNamara D, Colon capsule endoscopy (CCE) is an effective filter test for colonic polyp surveillance, United European Gastroenterology Journal, United European Gastroenterology Week 2020, Virtual, October 2020, 8, (8S), 2020, pp67-
Ismail M.S, Semenov s, Sihag S, McNamara D., Small bowel polypectomy for the management of Peutz- Jegher associated recurrent intussusception, United European Gastroenterology Journal, United European Gastroenterology Week 2020, Virtual, October 2020, 8, (8S), 2020, pp142-
Matthews T, Afzal N, Mahon J, O'Connor A, Breslin N, Ryan B, McNamara D, O'Donnell S, Stable rate of Helicobacter pylori infection in patients with peptic ulcer disease in a tertiary referral hospital over the last decade, United European Gastroenterology Journal, United European Gastroenterology Week 2020, Virtual, October 2020, 8, (8S), 2020, pp236-
Sinha C, FitzGerald R, Whelan A., O,Reilly L., Curran N, Douglas A.R, Brennan D, O'Morain C, McNamara D, Smith S, Clarithromycin resistance is more common among less virulent Helicobacter Pylori strains- data from an Irish centre., United European Gastroenterology Journal, United European Gastroenterology Week, Virtual, October 2020, 8, (8S), 2020, pp285-
Goltstein L.C.M.J, Grooteman K.V, Rocco A, Holleran G, Frago-Larramona S, Salgueiro P.S, Aparicio T, Scaglione G, Chetcuti Zammit S, Prados Manzano R, Benamouzig R, McNamara D, Benallaoua M, Sautereau D, Michopoulos S, Sidhu R, Kievit W, Drenth J.P.H, Van Geenen E.J.M., Somatostatin analogues are effective and safe in transfusion-dependent gastrointestinal bleeding due to angiodysplasia: an individual patient data meta-analysis, United European Gastroenterology Journal, United European Gastroenterology Week, Virtual, October 2020, 8, (8s), 2020, pp285-
Hussey M, Doherty J, Bailey Y, Kevans D, McNamara D, Immunosenescence is a factor in response to Infliximab therapy in IBD patients over 65 years of age, United European Gastroenterology Journal, United European Gastroenterology Week 2020, Virtual, October 2020, 8, (8S), 2020, pp448-
Fennessy A., Sihag S, Syafiq Ismail M, Hazel K, Gibbons E, Semenov S, Carroll A, Warnock S, O'Donnell S, McNamara D, Ryan B, Breslin N, O'Connor A, Treatment of symptoms in the absence of inflammation in Inflammatory Bowel Disease (TRAIN-IBD): interim results, United European Gastroenterology Journal, United European Gastroenterology Week, Virtual, October 2020, 8, (8S), 2020, pp459-
McCarthy E.M, Ryan J, Griffin S, O'Riordan J, Breslin N, O Connor A, Ryan B, Crowther S, McNamara D, The safety and efficacy of endoscopic mucosal resection for large and intermediate rectal polyps performed in an Irish university affiliated hospital., United European Gastroenterology Journal, United European Gastroenterology Week 2020, Virtual, October 2020, 8, (8S), 2020, pp785-
Leenhardt R, Riccioni M.E, Wurm-Johansson G, Keuchel M, Perrod G, Tortora A, Nemeth A, Baltes P, Rahmi G, Chetcuti Zammit S, Lee P.S, Cadoni S, Fernandez-Urien Sainz I, McNamara D, Margalit-Yehuda R, Beaumont H, Mussetto A, Spada C, Elli L, Trianatafylou K, Ellul P, Perez Cuadrado E, Bruno M, Rondonotti E, Robertson A, Dray X., Small bowel capsule endoscopy in patients with altered gastric anatomy: results from a European multicentre study, United European Gastroenterology Journal, United European Gastroenterology Week 2020, Virtual, October 2020, 8, (8S), 2020, pp826-
Sidhu R, McAlindon M, Saurin JC, Eliakim A., Fernandez-Urien Sainz I, Plevris JN, Rahmi G, Rondonotti E, Rosa B, Spada C, Toth E, Houdeville C, Li C, Robaszkiewicz M, Marteau P, Dray X., A guide for assessing the clinical relevance of findings in small bowel capsule endoscopy: analysis of 8064 answers of international experts to an illustrated script questionnaire., UEGJ, United European Gastroenterology Week, Virtual, October 2020, 8, (8S), 2020, pp827-
Semenov S, Douglas A.R, Ismail M.S, Sihag S, Ryan B, Breslin N, O'Connor A, O'Donnell S, McNamara D., The addition of castor oil as a booster in colon capsule regimens significantly improves completion rates and polyp detection, United European Gastroenterology Journal, United European Gastroenterology Week 2020, Amsterdam, Virtual, October 2020, 8, (8S), 2020, pp827 - 828
Sihag S, Tan B, Semenov S, Ismail M.S, O'Donnell S, O'Connor A, Ryan B, Breslin N, McNamara D, Clinical outcome of patients examined by small bowel capsule endoscopy with non-specific enteritis, United European Gastroenterology Journal, United European Gastroenterology Week, Amsterdam Virtual, October 2020, 8, (8S), 2020, pp828-
Ismail M.S, Semenov S, Sihag S, Ryan B, O'Connor A, Breslin N, O'Donnell S, McNamara D, Improving quality in colon capsule endoscopy; effects of different bowel preparation regimens, United European Gastroenterology Journal, United European Gastroenterology Week 2020, Amsterdam, Virtual, October 2020, 8, (8S), 2020, pp829-
Sihag S, McCarthy EMM, Ismail MS, Semenov S, Ryan B, O'Donnell S, O'Connor A, Breslin N, McNamara D, Is it worth repeating capsule endoscopy (CE) in suspected small bowel bleeding?, United European Gastroenterology Journal, United European Gastroenterology Week 2020, Amsterdam Virtual, October 2020, 8, (8S), 2020, pp829 - 830
Ismail, M S, Murphy, G, Kelly, C, O'Riordan, F, Semenov, S, Sihag, S, Breslin, N, O' Connor A, Ryan, B, McNamara, D, P203 FIT and FC as a surrogate non-invasive marker for mucosal healing in inflammatory bowel disease, Journal of Crohn's and Colitis, 14, (Supplement_1), 2020, pS240-S240
O'Connell, J, Corcoran, R, Argue, R, McDonagh, P, Ismail, M S, Cullen, G, Doherty, G, Hartery, K, Healy, M, McCormack, M, MacCarthy, F, McKiernan, S, O'Connor, A, Ryan, B, McNamara, D, Kevans, D, P721 Early vedolizumab trough levels are associated with induction therapy outcome, Journal of Crohn's and Colitis, 14, (Supplement_1), 2020, pS580-S580
Bailey, Y, Hanna, C, O'Connor, A, Breslin, N, Ryan, B, McNamara, D, N11 Pregnancy Outcomes in Patients with inflammatory bowel disease: A single-centre experience, Journal of Crohn's and Colitis, 14, (Supplement_1), 2020, pS662-S662
Pariente, B, Torres, J, Burisch, J, Arebi, N, Barberio, B, Duricova, D, Ellul, P, Goldis, A, Kaimakliotis, I, Katsanos, K, Krznaric, Z, Mc Namara, D, Pedersen, N, Sebastian, S, Weimars, P, Lung, P, Lacognata, C, Horak, M, Domislovic, V, Murphy, I, Ungaro, R, Colombel, J F, Mary, J Y, OP05 Validation of the Lémann index in Crohn"s disease, Journal of Crohn's and Colitis, 14, (Supplement_1), 2020, pS005-S006
Semenov, S, Manoharan, T, Sihag, S, Hazel, K, Ismail, MS, Molloy D, Ryan, B, Breslin, N, O'Connor, A, McNamara, D, COLON CAPSULE ENDOSCOPY (CCE) IS AN EFFECTIVE FILTER TEST FOR COLONIC POLYP SURVEILLANCE, © Georg Thieme Verlag KG, 2020
Leenhardt, R, Koulaouzidis, A, Keuchel, M, Li, C, Rondonotti, E, Toth, E, Fernandez-Urien, I, McNamara, D, Sidhu, R, McAlindon, M, Rosa, B, Plevris, J, Eliakim, R, Spada, C, Houdeville, C, Robazckiewicz, M, Rahmi, G, Saurin, JC, Marteau, P, Dray, X, A GUIDE FOR INTERPRETATION OF THE PERTINENCY OF SMALL BOWEL CAPSULE ENDOSCOPY FINDINGS: ANALYSIS OF 8064 ANSWERS OF INTERNATIONAL EXPERTS TO AN ILLUSTRATED SCRIPT QUESTIONNAIRE, © Georg Thieme Verlag KG, 2020
Ismail, MS, Semenov, S, Sihag, S, McNamara, D, SMALL BOWEL POLYPECTOMY FOR THE MANAGEMENT OF PEUTZ-JEGHER ASSOCIATED RECURRENT INTUSSUSCEPTION, © Georg Thieme Verlag KG, 2020
Sihag, S, Tan, B, Ismail, MS, Semenov, S, Ryan, B, O'Connor, A, Breslin, N, McNamara, D, CLINICAL OUTCOME OF PATIENTS EXAMINED BY SMALL BOWEL CAPSULE ENDOSCOPY WITH NON-SPECIFIC ENTERITIS, © Georg Thieme Verlag KG, 2020
Gordon, Joy, Walker, C, Parihar, V, Kavanagh, D, Neary, P, Ridgeway, P, Breslin, N, McNamara, D, O'Connor A, Ryan, B, POSITIVE IMPACT OF NURSE-LED CLINICAL VALIDATION AND STRICT APPLICATION OF GUIDELINES TO ENDOSCOPY WAITING LISTS IN A TERTIARY IRISH HOSPITAL, © Georg Thieme Verlag KG, 2020
Douglas, A, Sihag, S, Semenov, S, Ryan, B, O'Connor, A, Breslin, N, McNamara, D, SIMETHICONE CLEARS THE WAY FOR CAPSULES, © Georg Thieme Verlag KG, 2020
Syafiq Ismail, M, Semenov, S, Sihag, S, Breslin, N, O'Connor, A, Ryan, B, McNamara, D, IMPROVING QUALITY IN COLON CAPSULE ENDOSCOPY; EFFECTS OF DIFFERENT BOWEL PREPARATION REGIMENS, © Georg Thieme Verlag KG, 2020
Semenov, S, Atiyekeogbebe, R, Ismail, MS, Sihag, S, McCarthy, E, Ryan, B, Breslin, N, O'Connor, A, McNamara, D, THE ADDITION OF CASTOR OIL AS A BOOSTER IN COLON CAPSULE REGIMENS SIGNIFICANTLY IMPROVES COMPLETION RATES AND POLYP DETECTION, © Georg Thieme Verlag KG, 2020
Ismail, MS, O'Keefe, A, Aylward, CJ, Hickey, N, McNamara, D, FUTURE KEY PERFORMANCE INDICES FOR DEVICE ASSISTED ENTEROSOCPY; WHAT WE CAN LEARN FROM CURRENT PRACTICE, Georg Thieme Verlag KG, 2019
MS Ismail, S Semenov, A O'Connor, N Breslin, B Ryan, D McNamara, COLON CAPSULE ENDOSCOPY WITH OR WITHOUT BIOMARKERS AS A VIABLE ALTERNATIVE TO COLONOSCOPY IN UNSELECTED PATIENTS WITH LOWER GI SYMPTOMS: RESULTS OF A PILOT STUDY, Endoscopy, ESGE Days, Prague, April 2019, 51, (4), 2019, ppS161-
S Semenov, M Syafiq Ismail, A O'Connor, N Breslin, B Ryan, D McNamara, POSITIVE IMPACT OF SWITCHING FROM BSG TO ESGE POST POLYPECTOMY GUIDELINES ON A COLONOSCOPY SURVEILLANCE WAITING LIST, Endoscopy, ESGE Days, Prague, April 2019, 51, (4), 2019, ppS215-
Murphy, G, Ismail, MS, Msaky, C, McNamara, D, COMPARING COLON CAPSULE ENDOSCOPY TO COLONOSCOPY; A PATIENT'S PERSPECTIVE, Georg Thieme Verlag KG, 2019
FitzGerald R., Windle H, Kelleher D, Douglas A.R., O'Morain C, McNamara D. Smith S., Helicobacter pylori infection inhibits Notch signalling in gastric epithelial cells and the mucosa, United European Gastroenterology Journal, United European Gastroenterology Week 2019, Barcelona, October 2019, 7, (8S), 2019, 57
M Syafiq Ismail, N O'Morain, B Ryan, D McNamara, BALLOON SPHINCTEROPLASTY IS A SAFE AND RELIABLE METHOD TO ACHIEVE BILIARY CLEARANCE IN AN AT RISK CHOEDOCHOLITHIASIS COHORT, Endoscopy, ESGE Days, Prague, April 2019, 51, (4), 2019, ppS234-
Leenhardt R., Buisson A., Boureille A , Marteau P, Koulaouzidis A, Li C , Keuchel M, Rondonotti E, Toth E., Plevris J.N, Eliakim A Rosa B Triantafyllou K., Elli L, Wurm-Johansson G, Ellul P, Perez-Cuadrado-Robles E, McNamara D, Cavallaro F, Spada C., Cholet F, Beaumont H., Fernández-Urién Sainz I, Kopylov U., McAlindon M., Németh A., Niv Y, Panter S, Tontini G.E., Yung D.E., Rahmi G. Saurin J.C., Dray X., Nomenclature and Semantic Description of Ulcerative and Inflammatory Lesions seen in Crohn's Disease in Small Bowel Capsule Endoscopy: an International Delphi Consensus Statement, United European Gastroenterology Journal, United European Gastroenterology Week 2019, Barcelona, October 2019, 7, (8S), 2019, pp292-
Douglas A.R, Fitzpatrick H, Mohd Faudzi F, Brennan D, Omorogbe J.A, Smith S, Ryan B, O Connor A, McNamara D, High incidence of H.pylori resistance in an Irish centre which negatively impacts treatment, UEGJ, United European Gastroenterology Week 2019, Barcelona, October 2019, 7, (8S), 2019, pp731-
O'Riordan F, Ryan B, Breslin N, O'Connor A, McNamara D, Should sessile serrated polyps have different surveillanc, UEGJ, United European Gastroenterology Week, Barcelona, October 2019, 7, (8S), 2019, pp388-
Douglas AR, Smith S, Ryan B, Breslin N, Murphy G, Ismail M.S, Holleran G, O'Connor A, McNamara D, Shared angiogenic drivers of intestinal vascular disorders., UEGJ, United European Gastroenterology Week 2019, Barcelona, October 2019, 7, (8S), 2019, pp727-
Ryan E.J, Orsi G, Syed A.Z, Boland M.R, Creavin B, Kelly M.E, Sheahan K, Neary P.C, Kavanagh D.O, McNamara D, Winter D.C, O'Riordan J.M, Meta-analysis of early surgery versus initial medical therapy with or without delayed surgery in patients with ileocolonic Crohn's disease, UEGJ, United European Gastroenterology Week 2019, Barcelona, October 2019, 7, (8S), 2019, pp918-
O'Riordan F, Reidy M, Sim Yan En, McNamara D, High-risk factors for gastric retention in small bowel capsule endoscopy. A single centre retrospective comparative study, United European Gastroenterology Week 2019, Barcelona, October 2019., 7, (8S), 2019, pp857 - 858
Smith SM, Boyle B, Buckley M, Costigan C, Doyle M, Farrell R, Ismail MS, Kevans D, Nugent S, O'Connor A, O'Morain C, Parihar V, Ryan C, McNamara D., The second Irish Helicobacter pylori Working Group consensus for the diagnosis and treatment of Helicobacter pylori infection in adult patients in Ireland., European Journal of Gastroenterology & Hepatology, 36, (8), 2024, p1000 - 1009
McShane C, Varley R, Fennessy A, Byron C, Campion JR, Hazel K, Costigan C, Ring E, Marrinan A, Judge C, Sugrue K, Cullen G, Dunne C, Hartery K, Iacucci M, Kelly O, Leyden J, McKiernan S, O'Toole A, Sheridan J, Slattery E, Boland K, McNamara D, Egan L, Ghosh S, Doherty G, McCarthy J, Kevans D., Effectiveness, safety, and cost of combination advanced therapies in inflammatory bowel disease., Digestive and liver disease : official journal of the Italian Society of Gastroenterology and the Italian Association for the Study of the Liver, 2024, pS1590-8658(24)00973-3
Costigan C, Scaiscia D, Comerford M, Whitmarsh R, Madders G, O'Connell J, Costigan O, Butler T, O'Hara F, Ismail S, McNamara D., Bismuth quadruple therapy is an effective treatment in an Irish cohort, United European Gastroenterology Journal, 32nd United European Gastroenterology Week, Vienna, October 2024, 12, 2024, pp471-
Madders G, Grainger R, Costigan C. McNamara D., Evaluation of patency at home pilot program; success, satisfaction and saving., United European Gastroenterology Journal, 32nd United European Gastroenterology Week, Vienna, October 2024, 12, 2024, pp780-
Costigan C, Costigan O, Comerford M, Scaiscia D, Madders G, Butler T, O Hara F, McNamara D, Urea breath tests in Ireland: An 8 year retrospective analysis. UEG Week 2024 Poster Presentations, United European Gastroenterology Journal, 32nd United European Gastroenterology Week, Vienna, October 2024, 12, 2024, pp801-
Madders G, Grainger R, Costigan C, McNamara D, Application of ICCE criteria for patients undergoing small bowel capsule endoscopy for suspected Crohn's disease and its diagnostic yield, United European Gastroenterology Journal, 32nd United European Gastroenterology Week, Vienna, October 2024, 12, 2024, pp950-
O'Hara FJ, Costigan C, McNamara D., Extended 72-hour patency capsule protocol improves functional patency rates in high-risk patients undergoing capsule endoscopy., World journal of gastrointestinal endoscopy, 16, (12), 2024, p661-667
O'Hara, Fintan John, Costigan, Conor, Mc Namara, Deirdre, Orally Administered Peppermint Oil Solution in Small Bowel Capsule Endoscopy: A Novel Approach to Improve Completion Rates in Patients at Risk of Dela, Endoscopy International Open, 2025
C. Costigan, D. Scaiscia, M. Comerford, R. Whitmarsh,G. Madders, J. O"Connell, O. Costigan, T. Butler, F. O"Hara,S. Ismail, D. McNamara, H. PYLORI: BISMUTH QUADRUPLE THERAPY WITH DOXYCYCLINEIS AN EFFECTIVE THERAPY IN AN IRISH COHOR, United European Gastroenterology Journal, United European Gastroenterology Week, Vienna, Austria, October 2024, 12, 2024, 664, pp201-664
Lei, Ian Io, Robertson, Alexander, Koulaouzidis, Anastasios, Arasaradnam, Ramesh, the international Capsule Endoscopy Research (iCARE) Group,, Evaluation of Colon Capsule Utilisation in Europe: CAPTURE EU Survey Findings, Journal of Clinical Medicine, 14, (1), 2025, p99
Ballester, Raquel, Costigan, Conor, O'Sullivan, Aoife Mary, Sengupta, Shreyashee, McNamara, Deirdre, Efficacy and applications for PuraStat® use in the management of unselected gastrointestinal bleeding: A retrospective observational study, World Journal of Gastrointestinal Endoscopy, 17, (3), 2025
Deza DC, Alcedo J, Lafuente M, López FJ, Perez-Aisa A, Pavoni M, Tepes B, Jonaitis L, Castro-Fernandez M, Pabón-Carrasco M, Keco-Huerga A, Voynovan I, Bujanda L, Lucendo AJ, Brglez Jurecic N, Denkovski M, Vologzanina L, Rodrigo L, Martínez-Domínguez SJ, Fadieienko G, Huguet JM, Abdulkhakov R, Abdulkhakov SR, Alcaide N, Velayos B, Hernández L, Bordin DS, Gasbarrini A, Kupcinskas J, Babayeva G, Gridnyev O, Leja M, Rokkas T, Marcos-Pinto R, Lerang F, Boltin D, Mestrovic A, Smith S, Venerito M, Boyanova L, Milivojevic V, Doulberis M, Kunovsky L,Parra P, Cano-Català A, Moreira L, Nyssen OP, Megraud F, O"Morain C, Gisbert JP, on behalf of the Hp-EuReg investigators., Probiotics prescribed with Helicobacter pylori eradication therapy in Europe: usage pattern, effectiveness, and safety: results from the European Registry on Helicobacter pylori management (Hp-EuReg), American Journal of Gastroenterology, 2025
Clarke N, Mooney T, Gallagher P, von Wagner C, Hanly P, McNamara D, Coffey H, Fitzpatrick P, Sharp L., Interventions to increase uptake in a fecal-immunochemical test population-based colorectal cancer screening program: A quasi-experimental study of first-time invitees., Cancer, 131, (7), 2025, pe35760
Kripakaran, D, Costigan, C, Hall, B, Gibbons, E, Parihar, V, Ferry, M, Van Der Merwe, K, Goulding, C, Walker, C, Hussey, M, Holleran, G, Osmerova, I, McNamara, D, Irish capsule endoscopy registry (ICaRe) data indicates that the diagnostic yield for significant small bowel lesions is similar in patients irrespective of bowel preparation with purgatives, 57, (S 02), 2025, ppS42-S42
Costigan, C, Connaughton, R, Sihag, S, Leung, E, O'Hara, F, Hall, B, McNamara, D, Device-assisted Enteroscopy: An Irish Experience, Endoscopy, ESGE Days 2025, Barcelona Spain, April 2025, 57, (S 02), 2025, ppS163-S164
O'Hara, F, Omallao, E, Eagle, N, Bailey, Y, Leung, E, McNamara, D, Completion small bowel capsule endoscopy after device assisted enteroscopy is of value in managing a variety of patients with small bowel disease, Endoscopy, ESGE Days 2025, Barcelona Spain, April 2025, 57, (S 02), 2025, ppS231-S231
Kripakaran, D, Costigan, C, O'Hara, F, Hall, B, Gibbons, E, Parihar, V, Ferry, M, Van Der Merwe, K, Goulding, C, Walker, C, Hussey, M, Holleran, G, Osmerova, I, Doherty, G, Cabardo, J, McNamara, D, Early lessons from the Irish Colon Capsule Registry (ICaRe); data from year one of the national clinical CCE program, Endoscopy, ESGE Days 2025, Barcelona Spain, April 2025, 57, (S 02), 2025, ppS389-S389
Sihag, S, O'Grady, A, Khan, J, Dockery, J, Leung, E, Costigan, C, O'Hara, F, McNamara, D, Who needs an invasive colonoscopy: Pan intestinal capsule endoscopy may have an answer, 57, (S 02), 2025, ppS504-S504
Leung, E, sihag, S, Costigan, C, Butler, T J, Kripakaran, D, Hall, B, Gibbons, E, Parihar, V, Ferry, M, Van Der Merwe, K, Goulding, C, Serap, F, Walker, C, Hussey, M, Holleran, G, Osmerova, I, O'Hara, F, McNamara, D, The use of real time monitoring with prokinetics in small bowel capsule endoscopy patients at risk of delayed gastric emptying not only reduces rates of gastric retention but also of incomplete small bowel transit, Endoscopy, ESGE Days 2025, Barcelona, Spain, April 2025, 57, (S 02), 2025, ppS525-S526
O'Sullivan, A M, Costigan, C, Ballester-Clau, R, Sengupta, S, O'Hara, F, McNamara, D, Progression of small bowel angiodysplasia, Endoscopy, ESGE Days, Barcelona Spain, April 2025, 57, (S 02), 2025, ppS540-S540
Leung, E, Alshareefy, Y, Costigan, C, Sihag, S, Kripakaran, D, Connolly, Y, O'Donnell, S, Breslin, N, O'Connor, A, Ryan, B, Abdul, Z, Ion, C, O'Hara, F, McNamara, D, The right biopsy protocol for microscopic colitis: reduced workload and carbon footprint while maintaining diagnostic accuracy, Endoscopy, ESGE Days 2025, Barcelona, April 2025, 57, (S 02), 2025, ppS622-S622
Doherty, Jayne, Ryan, Anthony W, Quinn, Emma, Conroy, Judith, Dolan, Jackie, Corcoran, Roisin, Hara, Fintan O, Cullen, Garret, Sheridan, Juliette, Bailey, Yvonne, Dunne, Cara, Hartery, Karen, McNamara, Deirdre, Doherty, Glen A, Kevans, David, HLA-DQA1*05 Allele Carriage and Anti-TNF Therapy Persistence in Inflammatory Bowel Disease, Inflammatory Bowel Diseases, 31, (4), 2025, p903-911
Ballester, Raquel, O'Connell, James, Costigan, Conor, Sengupta, Shreyashee, Manoharan, Thilagaraj, Martinez, Monserrat, Mc Namara, Deirdre, Glasgow-Blatchford and Rockall score utility in predicting findings on video capsule endoscopy in patients admitted with overt small bowel bleeding, Endoscopy International Open, 13, (CP), 2025
Non-Peer-Reviewed Publications
O'Connor C., McNamara D., Nakagome S., A statistical modelling reveals bi-directional chromatin scanning by RAG in the human TCR-alpha locus, bioRxiv, 2020, p14
Research Expertise
Description
Research Overview Research Position-Founder and Director TAGG Research Centre, Trinity College Dublin Research Description- Multidisciplinary Clinical Translational Gastroenterology Major Themes- Small bowel bleeding and small bowel endoscopy, minimally invasive endoscopy and Helicobacter pylori infection Related National & International Roles and Collaborations International CApsule endoscopy REsearch (I-CARE) Group European Society of Gastrointestinal Endoscopy Small Bowel Quality Improvement Committee European Society of Gastrointestinal Endoscopy Days Faculty National Endoscopy Program Capsule Endoscopy Working Group European Helicobacter pylori Registry Chair Irish Helicobacter pylori Working Group Major Research Impacts- Establishment of a national referral centre for suspected small bowel bleeding and interventional enteroscopy at TUH Development of a national colon capsule service Development of international and national practice and technical guidelines and quality assurance measures for small bowel endoscopy Establishment of a national multidisciplinary Helicobacter pylori working group and development of Irish management guidelines Recognition as a centre of translational research and clinical excellence across Europe with both the United European Gastroenterology Federation and the European Society of Gastrointestinal Endoscopy awarding visiting fellowships to TAGG Supervision and mentoring the next generation of clinical academics with over 11 postgraduate MD students choosing to do their research with me. Research Data- I have published widely in my field of research with over 150 papers and almost 400 conference abstracts as well as over 50 invited presentations to learned societies, with a H-index of 29 and > 2,400 citations from Web of Science (https://www-webofscience-com.elib.tcd.ie/wos/alldb/citation-report/c750a77a-2f3d-400c-91fd-f0b702494f3b-e8101c81). Research grants and research awards from the Health Research Board, National Cancer Society, European Society of Gastrointestinal Endoscopy, European Crohn's and Colitis Foundation, Royal College of Physicians of Ireland, Meath Foundation and Industry. Current research initiatives and future directions: Major current projects a) Clinical trial assessing the efficacy of an alternative capsule based strategy for the investigation of patients presenting with overt upper / small bowel GI bleeding b) Clinical trial comparing two different treatments for the management of acute upper GI bleeding (Adrenaline + a) Purastat or b) Standard of Care c) Irish colon capsule registry- as the developer and data controller for this national initiative we hope to tailor colon capsule services in Ireland to optmise efficacy, improve outcomes and enhance the patient experience. d) Completion of the 2024 Irish H.pylori management consensus process which I chair, and the dissemination of our guidelines. As well as assessment of the efficacy of key recommendations. e) Validation of the efficacy of the angiogenic factors, Angiopoietin 1 & 2 as biomarkers of small bowel angiodysplasia bleeding and the need for interventionRecognition
Representations
European Society of Gastrointestinal Endoscopy Governing Board
Chair Irish Helicobacter pylori Working Group
European Society of Gastrointestinal Endoscopy National Representative
President Irish Society of Gastroenterology
National Capsule Endoscopy Clinical Advisory Group
Chair Gastroenterology Clinical Programme
Associate Editor Frontiers in Gastroenterology
National Endoscopy Training Committee (RCPI / RCSI)
Board Member Irish Society of Gastroenterology
Treasurer Medical Board Tallaght University Hospital
SJH/TUH Joint Research Ethics Committee Member
Chair National IBD Transition Group
United European Gastroenterology National Societies Forum, Irish Representative
European Society of Gastrointestinal Endoscopy Quality Improvement Committee
Associate Editor United European Gastroenterology Journal
SATC Centre, Odense University Hospital, Svenborg, Denmark, Senior Consultant
ESGE -ESGAR CT-CCE Guideline Committee
United European Gastroenterology Federation Meeting of Members (Council)
Netherlands Organisation for Scientific Research (NWO), Grant Peer Reviewer Dutch Digestive Foundation, Grant Peer Reviewer
Awards and Honours
Distinction Award, American Gastroenterological Association
Deutscher Akademischer Austausch Dienst Scholarship, German Federal Ministry of Education and Research
NCI Summer Curriculum in Cancer Prevention Scholarship, National Cancer Institute/Health Research Board
Most Cited Articles Award Science Direct Publishing Group
Abstract Prizes Irish Society of Gastroenterology
Abstract Prizes United European Gastroenterology Federation (UEGW)
Meath Foundation & Adelaide Society O"Morain Research Award
European Society of Gastrointestinal Endoscopy (ESGE) Research Award
United European Gastroenterology Federation National Scholar Award
European Crohn's and Colitis Fellowship Award
European Society of Gastrointestinal Endoscopy Mentor Award
Memberships
Irish Society of Gastroenterology
European Society of Gastrointestinal Endoscopy (ESGE)
European Crohn's and Colitis Organisation
Fellow Royal College of Physicians of Ireland
Fellow Royal College Physicians of Edinburgh