Biography
Graduated in medicine from University College Cork in 2004. Completed SHO training in Limerick before undertaking higher specialist training in Gastroenterology in Tallaght and St. James's Hospitals in Dublin. Awarded an MD by Trinity College Dublin in 2012 for a thesis on the management of Helicobacter pylori infection and gastric intestinal metaplasia with regard to gastric cancer prevention supervised by Professor Colm O'Morain.
Upon completion of training in Ireland worked as senior fellow in Crohn's and Colitis at Beth Israel Deaconess Medical Center/Harvard Medical School in Boston, USA before taking up an appointment as Consultant Gastroenterologist at Leeds Teaching Hospitals NHS Trust in June 2014 and returning to Ireland in 2016 to an appointment as Consultant Gastroenterologist at Tallaght Hospital. Authored or co-authored more than 40 peer-reviewed journal articles and has given invited lectures and oral presentations at many national and international meetings. Interests include Inflammatory Bowel Diseases especially Post-operative prophylaxis of Crohn's disease and Quality of Life for patients with IBD, the GI complications of cancer therapies, Upper Gastrointestinal Tract Bleeding, Helicobacter pylori infection and Gastric Cancer prevention.
Publications and Further Research Outputs
Peer-Reviewed Publications
A. O'Connor , J. M. Liou. J. P. Gisbert , C. O'Morain, The Effect of Helicobacter pylori antibiotic therapy on the microbiome, Microbiota In Health and Disease , 2, 2020, pe205-
Karl Hazel, Anthony O'Connor, Emerging treatments for inflammatory bowel disease, Therapeutic Advances in Chronic Diseases, 11, 2020, p1 - 12
O'Connor A, Gracie DJ, Hamlin PJ, Ford AC., Predictors of Dyspareunia Among Female Patients with Inflammatory Bowel Disease., Clinical Gastroenterology and Hepatology, 2019
O'Connor A, Liou JM, Gisbert JP, O'Morain C., Review: Treatment of Helicobacter pylori Infection 2019., Helicobacter, 24, (Suppl 1:e12640), 2019
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
O'Connor A, Ratnakumaran R, Warren L, Pullen D, Errington A, Gracie DJ, Sagar RC, Hamlin PJ, Ford AC., Randomized controlled trial: a pilot study of a psychoeducational intervention for fatigue in patients with quiescent inflammatory bowel disease., Therapeutic Advances in Chronic Diseases, 10, 2019, p1 - 12
Ratnakumaran R, Warren L, Gracie DJ, Sagar RC, Hamlin PJ, O'Connor A, Ford AC. , Fatigue in Inflammatory Bowel Disease Reflects Mood and Symptom-Reporting Behavior Rather Than Biochemical Activity or Anemia. , Clin Gastroenterol Hepatol., 16, (7), 2018, p1165-1167
Stuart A Taylor, Susan Mallett, Gauraang Bhatnagar, Rachel Baldwin-Cleland, Stuart Bloom, Arun Gupta, Peter J Hamlin, Ailsa L Hart, Antony Higginson, Ilan Jacobs, Sara McCartney, Anne Miles, Charles D Murray, Andrew A Plumb, Richard C Pollok, Shonit Punwani, Laura Quinn, Manuel Rodriguez-Justo, Zainib Shabir, Andrew Slater, Damian Tolan, Simon Travis, Alastair Windsor, Peter Wylie, Ian Zealley, Steve Halligan, Jade Dyer, Pranitha Veeramalla, Sue Tebbs, Steve Hibbert, Richard Ellis, Fergus Thursby-Pelham, Richard Beable, Nicola Gibbons, Claire Ward, Anthony O'Connor, Hannah Lambie, Rachel Hyland, Nigel Scott, Roger Lapham, Doris Quartey, Deborah Scrimshaw, Helen Bungay, Maggie Betts, Simona Fourie, Niall Power, Rajapandian Ilangovan, Uday Patel, Evgenia Mainta, Phillip Lung, Ian Johnston, Mani Naghibi, Morgan Moorghen, Adriana Martinez, Francois Porte, Christopher Alexakis, James Pilcher, Anisur Rahman, Jonny Vlahos, Rebecca Greenhalgh, Anita Wale, Teresita Beeston, Wivijin Piga, Joey Clemente, Farooq Rahman, Simona de Caro, Shameer Mehta, Roser Vega, Roman Jastrub, Harbir Sidhu, Hameed Rafiee, Mairead Tennent, Caron Innes, Craig Mowat, Gillian Duncan, Steve Morris, Diagnostic accuracy of magnetic resonance enterography and small bowel ultrasound for the extent and activity of newly diagnosed and relapsed Crohn's disease (METRIC): a multicentre trial, The Lancet Gastroenterology and Hepatology, 3, (8), 2018, p548-558
Ratnakumaran R, To N, Gracie DJ, Selinger CP, O'Connor A, Clark T, Carey N, Leigh K, Bourner L, Ford AC, Hamlin PJ, Efficacy and tolerability of initiating, or switching to, infliximab biosimilar CT-P13 in inflammatory bowel disease (IBD): a large single-centre experience. , Scandinavian Journal of Gastroenterology, 53, (6), 2018, p700 - 707
O'Morain, NR, Dore, MP, O'Connor, AJP, Gisbert, JP, O'Morain, CA, Treatment of Helicobacter pylori infection in 2018. O'Morain NR, Dore MP, O'Connor AJP, Gisbert JP, O'Morain CA. Helicobacter. 2018 Sep;23 Suppl 1:e12519., Helicobacter, 23, (Suppl 1:e12519), 2018
Burr NE, Hall B, Hamlin PJ, Selinger CP, Ford AC, O'Connor A. ., Systematic review and network meta-analysis Medical therapies to prevent recurrence of post-operative Crohn's disease. , Journal of Crohn's and Colitis, 2018
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
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
Flores BM, O'Connor A, Moss AC. , Impact of mucosal inflammation on risk of colorectal neoplasia in patients with ulcerative colitis: a systematic review and meta-analysis. , Gastrointestinal Endoscopy, 86, (6), 2017, p1006-1011
Selinger CP, Lenti MV, Clark T, Rafferty H, Gracie D, Ford AC, OʼConnor A, Ahmad T, Hamlin PJ. , Infliximab Therapeutic Drug Monitoring Changes Clinical Decisions in a Virtual Biologics Clinic for Inflammatory Bowel Disease. , Inflammatory Bowel Diseases , 23, (12), 2017, p2083 - 2088
A O'Connor, C O'Moráin, Mistakes in the management of Helicobacter pylori infection and how to avoid them, UEG Education, 17, 2017, p42 - 44
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
O'Connor, A, Lamarque, D, Gisbert, JP, O'Morain, C, Treatment of Helicobacter pylori infection 2017. O'Connor A, Lamarque D, Gisbert JP, O'Morain C. Helicobacter. 2017 Sep;22 Suppl 1. , Helicobacter, 22, (Suppl. 1:e12410), 2017
O'Connor A, O'Morain CA, Ford AC. , Population screening and treatment of Helicobacter pylori infection. , Nature Reviews Gastroenterology and Hepatology , 14, (4), 2017, p230 - 232
O'Connor A, Hamlin PJ, Taylor J, Selinger C, Scott N, Ford AC., Postoperative prophylaxis in Crohn's disease after intestinal resection: a retrospective analysis. , Frontline Gastroenterology, 8, (3), 2017, p203 - 209
O'Connor A, Marples M, Mulatero C, Hamlin J, Ford AC. , Ipilimumab-induced colitis: experience from a tertiary referral center., Therapeutic Advances in Gastroenterology, 9, (4), 2016, p457 - 462
O'Connor A, Ford AC., Poor Correlation Between Patient-reported and Endoscopic Components of the Mayo Score in Ulcerative Colitis., Gastroenterology, 150, (4), 2016, p1037 - 1037
O'Connor A, Fischbach W, Gisbert JP, O'Morain C., O'Connor A, Fischbach W, Gisbert JP, O'Morain C., Helicobacter, 21, (Suppl 1), 2016, p55 - 61
OʼConnor A, Packey CD, Akbari M, Moss AC., Mesalamine, but Not Sulfasalazine, Reduces the Risk of Colorectal Neoplasia in Patients with Inflammatory Bowel Disease: An Agent-specific Systematic Review and Meta-analysis. , Inflammatory Bowel Diseases , 21, (11), 2015, p2562-2569
O'Connor A, Gisbert JP, O'Morain C, Ladas S., Treatment of Helicobacter pylori Infection 2015., Helicobacter, 20, (Suppl 1), 2015, p54 - 61
Kaye TL, O'Connor A, Burke D, Tolan DJ, A young woman with recurrent perianal sepsis. BMJ. 2015 Apr 23;350:h1969., 350, 2015, ph1969 - h1969
Microscopic Colitis. in, editor(s)Burakoff R , Scientific American gastroenterology, hepatology, and endoscopy. , Hamilton (ON), Decker Intellectual Properties, 2015, [O'Connor A, Moss AC. ]
O'Connor A, Moss AC. , Current and emerging maintenance therapies for ulcerative colitis. , Expert Review of Gastroenterology & Hepatology , 8, (4), 2014, p359-368
O'Connor A, Vaira D, Gisbert JP, O'Morain C. , Treatment of Helicobacter pylori infection 2014. , Helicobacter, 19, (Suppl 1), 2014, p38 - 45
O'Connor A, O'Moráin C. Dig Dis. , Digestive function of the stomach. , DIgestive Diseases, 32, (3), 2014, p186 - 191
Anthony O'Connor, The Asymptomatic Stomach, 27th Annual Workshop of the European Helicobacter Study Group, Madrid, Spain, 14 September 2013, 2013, European Helicobacter Study Group
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, O'Moráin C. , Helicobacter pylori infection in Europe: current perspectives. , Expert Review of Gastroenterology & Hepatology , 7, (6), 2013, p541 - 548
O'Connor A, Molina-Infante J, Gisbert JP, O'Morain C., Treatment of Helicobacter pylori infection 2013. O'Connor A, Molina-Infante J, Gisbert JP, O'Morain C. , Helicobacter, 18, (Suppl 1), 2013, p58 - 65
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
O'Connor A, Molina-Infante J, Gisbert JP, O'Morain C., Treatment of Helicobacter pylori infection 2013. O'Connor A, Molina-Infante J, Gisbert JP, O'Morain C. , Helicobacter, 18, (Suppl 1), 2013, p58 - 65
Tepes B, O'Connor A, Gisbert JP, O'Morain C. , Treatment of Helicobacter pylori infection 2012. , Helicobacter, 17, (Suppl 1), 2012, p36 - 42
Dinis-Ribeiro M, Areia M, de Vries AC, Marcos-Pinto R, Monteiro-Soares M, O'Connor A, Pereira C, Pimentel-Nunes P, Correia R, Ensari A, Dumonceau JM, Machado JC, Macedo G, Malfertheiner P, Matysiak-Budnik T, Megraud F, Miki K, O'Morain C, Peek RM, Ponchon T, Ristimaki A, Rembacken B, Carneiro F, Kuipers EJ; European Society of Gastrointestinal Endoscopy; European Helicobacter Study Group; European Society of Pathology; Sociedade Portuguesa de Endoscopia Digestiva., Management of precancerous conditions and lesions in the stomach (MAPS): guideline from the European Society of Gastrointestinal Endoscopy (ESGE), European Helicobacter Study Group (EHSG), European Society of Pathology (ESP), and the Sociedade Portuguesa de Endoscopia Digestiva (SPED)., Endoscopy, 44, (1), 2012, p74 - 94
O'Connor JPA, O'Morain CA, Neurological Manifestations of Helicobacter pylori Infection: Epiphenomenon or Immunologic Incident?, ImmunoGastroenterology, 1, (5), 2012
O'Connor A, O'Morain CA. , The ethics of using inferior regimens in H. pylori randomised trials , Alimentary Pharmacology and Therapeutics, 35, (7), 2012, p854 - 856
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 a 'scope' to increase the opportunities for screening? , European Journal of Cancer Prevention, 20, (1), 2011, p40 - 45
Keane R, O'Connor A, Ryan B, Breslin N, O'Connor H, Qasim A, O'Morain C, Inappropriate colonoscopic surveillance of hyperplastic polyps, Irish Medical Journal, 104, (7), 2011
Anthony O'Connor, Javier P. Gisbert, Deirdre McNamara, Colm O'Morain, Treatment of Helicobacter pylori Infection 2011, Helicobacter, 16, (s1), 2011, p53-58
Gisbert JP, Calvet X, O'Connor A, Mégraud F, O'Morain CA, Sequential therapy for Helicobacter pylori eradication: a critical review., Journal of clinical gastroenterology, 44, (5), 2010, p313-25
Gisbert JP, Calvet X, O'Connor JP, Mégraud F, O'Morain CA, The sequential therapy regimen for Helicobacter pylori eradication., Expert opinion on pharmacotherapy, 11, (6), 2010, p905-18
O'Connor A, Gisbert JP, McNamara D, O'Morain C, Treatment of Helicobacter pylori infection 2010., Helicobacter, 15, (s1), 2010, p46 - 52
Cohen LB, Ladas SD, Vargo JJ, Paspatis GA, Bjorkman DJ, Van der Linden P, Axon AT, Axon AE, Bamias G, Despott E, Dinis-Ribeiro M, Fassoulaki A, Hofmann N, Karagiannis JA, Karamanolis D, Maurer W, O'Connor A, Paraskeva K, Schreiber F, Triantafyllou K, Viazis N, Vlachogiannakos J., Sedation in digestive endoscopy: the Athens international position statements, Alimentary Pharmacology and Therapeutics, 32, (3), 2010, p425 - 442
O'connor A, Taneike I, Nami A, Fitzgerald N, Murphy P, Ryan B, O'connor H, Qasim A, Breslin N, O'moráin C, Helicobacter pylori resistance to metronidazole and clarithromycin in Ireland., European journal of gastroenterology & hepatology, 22, (9), 2010, p1123-7
O'Connor A, Qasim A, O'Moráin CA., The long-term risk of continuous immunosuppression using thioguanides in inflammatory bowel disease., Therapeutic Advances in Chronic Disease, 1, (1), 2010, p7 - 16
O'Connor JP, O'Moráin CA, Vargo JJ. , Computer-assisted propofol administration. , Digestion, 2010, p124 - 126
O'Connor JPA, O'Moráin CA, Neary PC, Breslin NP, Use of Infliximab as rescue therapy in acute severe Ulcerative Colitis with recent Norovirus Infection , Journal of Crohn's and Colitis, 3, (3), 2009, p204 - 206
O'Connor JPA, Lee CS, O'Morain CA, Ryan BM, O'Connor HJ, Qasim A, Breslin NP, Passive Immunotherapy in Resistant Pseudomembranous Colitis, European Association for Gastroenterology and Endoscopy Bridging Meeting, Tirgu-Mures, Romania, October 2008, 2009
O'Connor JPA, O'Morain CA, Ryan BM, O'Connor HJ, Qasim A, Breslin NP, Colonoscopy in the Young : A Blunt Instrument?, American Gastroenterological Association, Chicago, June 2009, 2009
O'Connor JPA, O'Brien JM, McMenamin L O'Morain CA, Ryan BM, O'Connor HJ, Qasim A, Breslin NP, Small Bowel Radiology in the Investigation of Gastrointestinal Symptoms, Irish Society of Gastroenterology, Trim, Co.Meath, 2009
O'Connor JPA, O'Brien JM, McMenamin L O'Morain CA, Ryan BM, O'Connor HJ, Qasim A, Breslin NP, Small Bowel Follow Through in the Investigation of Known and Suspected Crohn's Disease, Irish Society of Gastroenterology, Trim, Co. Meath, November 2008, 2009
O'Connor A, Gisbert J, O'Morain C., Treatment of Helicobacter pylori infection., Helicobacter, 14, (Suppl 1), 2009, p46 - 51
O'Moráin CA, O'Connor JPA, Is Sequential Therapy superior to standard triple therapy for Helicobacter pylori in Treatment Naive patients? , Nature Clinical Practice Gastroenterology and Hepatology, 6, (1), 2009, p8 - 9
O'Connor JPA, Taneike I, O'Moráin CA, Improving compliance with Helicobacter pylori eradication therapy: When and How?, Therapeutic Advances in Gastroenterology, 2, (5), 2009, p273 - 279
Taneike, I, Nami, A, O'Connor, A, Fitzgerald, N, Murphy, P, Qasim, A, O'Connor, H, O'Morain, C, Analysis of drug resistance and virulence-factor genotype of Irish Helicobacter pylori strains: is there any relationship between resistance to metronidazole and cagA status?, Alimentary pharmacology & therapeutics, 30, (7), 2009, p784 - 790
O'Connor JPA, Lee CS, O'Morain CA, Ryan BM, O'Connor HJ, Qasim A, Breslin NP, Intravenous Immunoglobulin for severe resistant Clostidium Difficile Infection, Irish Society of Gastroenterology, Trim, Co.Meath, November 2008, 2008
O'Connor JPA, O'Brien JM, McMenamin L O'Morain CA, Ryan BM, O'Connor HJ, Qasim A, Breslin NP, Small Bowel Radiology in the Investigation of Gastrointestinal Symptoms, European Association for Gastroenterology and Endoscopy Bridging Meeting, Tirgu-Mures, Romania, 2008
O'Connor JPA, O'Morain CA, Ryan BM, O'Connor HJ, Qasim A, Breslin NP, IBS vs IBD Outcomes of Colonoscopy in Young Adults, European Association for Gastroenterology and Endoscopy Bridging Meeting, Tirgu-Mures,Romania, October 2008, 2008
Non-Peer-Reviewed Publications
Anthony O'Connor, Fatigue in IBD: epidemiology, assessment and management., XXVII Miquel Angel Gassull symposium on Inflammatory Bowel Diseases , Barcelona, Spain, 28 November 2019, 2019, Spanish research group on Inflammatory Bowel Disease
Anthony O'Connor, Helping Patients Cope With a Chronic Disease Diagnosis, Irish Society of Rheumatology Autumnl Meeting, Naas, Co. Kildare, 19 September 2018, 2018
Anthony O'Connor, Perianal Crohn's Disease Management : The Medical Perspective, Galway International IBD Study Day, Galway, Ireland, 12 October 2018, 2018, NUI Galway
Anthony O'Connor , Quality of Life in IBD, Irish Society of Gastroenterology Winter Meeting 2018, Dublin, Ireland, November 23rd, 2018
Anthony O'Connor, First Line Treatment for Ulcerative Colitis, the case for Infliximab, Leeds IBD Study Day, Leeds, UK, 22 November 2017, 2017
Anthony O'Connor, The changing landscape of therapeutics - recent developments, Leeds IBD Study Day, Leeds, UK, 30 November 2016, 2016
Anthony O'Connor, IBD Care in the UK, Galway International IBD Study Day, Galway, Ireland, 2 October 2015, 2015
Anthony O'Connor, Should Upper GI Bleeding only be Managed in Large Centres?, British Society of Gastroenterology Annual Meeting, London, 25 June 2015, 2015
Anthony O'Connor, H.pylori eradication for Gastric Cancer Prevention , 25th Annual Workshop of the European Helicobacter Study Group, Dublin, Ireland, 12 September 2011, 2011, European Helicobacter Study Group
Research Expertise
Description
My two major research themes are Inflammatory Bowel Diseases (IBD) and the Stomach. Regarding IBD, my interests are around Quality of Life for patients with IBD including fatigue, psychological effects and non-inflammatory GI symptoms as well as post-operative prophylaxis of Crohn's disease. Regarding the stomach my themes are Helicobacter pylori infection, treatment, antibiotic resistance rates and eradication as a means of prevention of stomach cancer. In addition, upper Upper Gastrointestinal Tract Bleeding is a further focus. I also have done some research on the GI complications of cancer therapies.Projects
- Title
- TRAIN-IBD
- Summary
- Single-centre double-blind, placebo controlled trial of a probiotic treatment for adults with inflammatory bowel disease that is in remission but ongoing symptomatology related to functional GI disease
Recognition
Representations
Council Member, Slaintecare Implementation Advisory Council. Appointed by Minister Simon Harris TD
Founding Member, Ireland-Portugal working group on Inflammatory Bowel Disease
Director of The Civility Project (RCPI/RCSI joint initiative on better workplaces funded by the National Doctors Training and Planning of the HSE)
Committee member INITIative. The Irish collaborative research network for Inflammatory Bowel Disease
Member of Editorial Board and Social Media Editor, Helicobacter journal
Member of Editorial Board, Therapeutic Advances in Chronic Disease.
Invited reviewer : Frontline Gastroenterology, Alimerntary Pharmacology and Therapeutics, Therapeutic Advances in Gastroenterology, Ciinical Gastroenterology and Hepatology.
Council and Committee Member, Irish Medical Organisation
Honorary Treasurer, Irish Medical Organisation
Member of IBD subgroup of the National Clinical Programme in Gastroenterology and Hepatology
Awards and Honours
Winner Outpatient Initiative of Year at the Irish Healthcare Centre Awards
Best Clinical Teacher award Mid-Western Regional Hospital, Dooradoyle, Limerick.
Nominated for best clinical teacher, School of Medicine, University College Cork.
3rd Place poster European Association for Gastroenterology and Endoscopy Bridging Meeting, Targu-Mures, Romania
Green Card Commendation for teaching : University of Leeds
Irish Medical Media Award for Professional Opinion Writing
Finalist-Consultant led team of the year. Irish Hospital Proefessional Awards
Memberships
Royal College of Physicians of Ireland
Irish Society of Gastroenterology
Faculty of Sports and Exercise Medicine, RCSI/RCPI
European Crohn's and Colitis Organisation
American Gastroenterological Association