Dr. Robert A. Enns
Clinical Professor of Medicine
St. Paul’s Hospital, UBC
Pacific Gastroenterology Associates
Robert Enns MD FRCP
Clinical Professor of Medicine
St Paul's Hospital, UBC
Pacific Gastroenterology Associates
#770-1190 Hornby St Vancouver BC V6Z-2K5
Phone 6046886332 Fax 6046892004
Dr Enns is presently the Head of the Division of Gastroenterology participating in teaching, training at all levels (medical student, residents, fellows and advanced fellows) as well as running a clinical practise focusing not only endoscopic procedures but on medical advances in GI. He is actively involved in research in most areas of Gastroenterology but tends to publish primarily around areas of endoscopy.
Dr Enns areas of research interest typically have included technology assessment and quality improvement. To this end his present work has been in advanced endoscopic techniques relating to ERCP/EMR and capsule endoscopy. In regards to quality improvement Provincial involvement in colonoscopy skills enhancement and training has occupied most of his time. He has been involved Nationally with numerous endoscopic studies that have typically developed through Canadian Association of Gastroenterology. Although his primary interests have been endoscopic, as one who has interests in any advances (medical or endoscopic or training) he has published in numerous arenas.
Dr Enns teaches at various levels. He is involved in the University-based medical school training program and therefore has medical students commonly rotating through the GI service. Additionally, residents (primarily medical residents) are taught regularly on the GI service. Fellowship- a two year program for GI training is run through the Division of GI and Dr Enns is involved regularly with all fellows in the program. He also is Co-Director of the Advanced therapeutics Fellowship Program in Vancouver. Lastly, he is involved in Direct observation of procedural skills and also with Skill Enhancement in Endoscopy (Provincial Programs) thereby stimulating and hopefully enhancing care through quality improvement in endoscopy provincially.
Canadian Association of Gastroenterology, American Association of Gastroenterology, American Association of Gastrointestinal Endoscopy, Doctors of BC, Royal College of Physicians and Surgeon of Canada, College of Physicians and Surgeons of BC.
| Telford JJ, Enns RA. Endoscopic missed rates of upper gastrointestinal cancers: parallels with colonoscopy. Am J Gastroenterol. 2010 Jun; 105(6):1298-300. |
| Svarta S, Segal B, Law J, Sandhar A, Kwok R, Jacques A, Lakzadeh P, Enns R. Diagnostic yield of repeat capsule endoscopy and the effect on subsequent patient management. Can J Gastroenterol. 2010 Jul;24(7):441-4. |
| Telford JJ, Levy AR, Sambrook JC, Zou D, Enns RA. The cost-effectiveness of screening for colorectal cancer. CMAJ. 2010 Jul 12. |
| Kim E, McLoughlin M, Lam EC, Amar J, Byrne M, Telford J, Enns R. Prospective analysis of fluoroscopy duration during ERCP: critical determinants. Gastrointest Endosc. 2010 Jul;72(1):50-7 |
| Rosenfeld G, Krygier D, Enns RA, Singham J, Wiesinger H, Bressler B. The impact of patient education on the quality of inpatient bowel preparation for colonoscopy. Can J Gastroenterol. 2010 Sep; 24(9):543-6. |
| Enns R, Kazemi P, Chung W, Lee M. Eosinophilic esophagitis: clinical features, endoscopic findings and response to treatment. Can J Gastroenterol. 2010 Sep;24(9):547-51. |
| Al-Ali J, Pawlowska M, Coss A, Svarta S, Byrne M, Enns R. Endoscopic management of gastric variceal bleeding with cyanoacrylate glue injection: safety and efficacy in a Canadian population. Can J Gastroenterol. 2010 Oct; 24(10):593-6. |
| Mitchell M Lee, Andrew Jacques, Eric Lam, Ricky Kwok, Pardis Lakzadeh, Ajit Sandhar, Brandon Segal, Sigrid Svarta, Joanna Law, Robert Enns. Factors associated with incomplete small bowel capsule endoscopy studies. World J Gastroenterol 2010;16(41): |
| Enns R. Missed cancers in the upper gastrointestinal tract after esophagogastroduodenoscopy. Gastroenterol Hepatol (N Y). 2010 Nov; 6(11):691-3. |
| Lee MM, Jacques A, Lam E, Kwok R, Lakzadeh P, Sandhar A, Segal B, Svarta S, Law J, Enns R. Factors associated with incomplete small bowel capsule endoscopy studies. World J Gastroenterol. 2010 Nov 14;16(42):5329-33. |
| Leddin DJ, Enns R, Hilsden R, Plourde V, Rabeneck L, Sadowski DC, Signh H. Canadian Association of Gastroenterology position statement on screening individuals at average risk for developing colorectal cancer: 2010. Can J Gastroenterol. 2010 Dec; 24(12):705-14. |
| Academic Quarter Day- GI Fellows- Non Variceal GI Bleeding 1515-1615, Oct 4 11 |
| Kim E, McLoughlin M, Lam EC, Amar J, Byrne M, Telford J, Enns R. Retrospective analysis of radiation exposure during endoscopic retrograde cholagiopancreatography: critical determinants. Can J Gastroenterol. 2011 Oct;25(10):555-9. |
| Tong J, Svarta S, Ou G, Kwok R, Law J, Enns R., Diagnostic yield of capsule endoscopy in the setting of iron deficiency anemia without evidence of gastrointestinal bleeding.Can J Gastroenterol. 2012 Oct;26(10):687-90. |
| Chan CH, Enns RA., ERCP in the management of choledocholithiasis in pregnancy. Curr Gastroenterol Rep. 2012 Dec; 14(6):504-10. |
| Brahmania M, Park J, Svarta S, Tong J, Kwok R, Enns R.,Incomplete colonoscopy: maximizing completion rates of gastroenterologists. Can J Gastroenterol. 2012 Sep;26(9):589-92. |
| Shahidi NC, Ou G, Svarta S, Law JK, Kwok R, Tong J, Lam EC, Enns R. Factors associated with positive findings from capsule endoscopy in patients with obscure gastrointestinal bleeding. Clin Gastroenterol Hepatol. 2012 Dec;10(12):1381-5. |
| Jones DJ, Barkun AN, Lu Y, Enns R, Sinclair P, Martel M, Gralnek I, Bardou M, Kuipers EJ, Sung J; International Consensus Upper Gastrointestinal Bleeding Conference Group. Conflicts of interest ethics: silencing expertise in the development of international clinical practice guidelines. Ann Intern Med. 2012 Jun 5;156(11):809-16, W-283. |
| Donnellan F, Walker B, Enns R., Esophageal papillomatosis complicated by squamous cell carcinoma. Endoscopy. 2012 Apr;44 Suppl 2 |
| Borgaonkar MR, Hookey L, Hollingworth R, Kuipers EJ, Forster A, Armstrong D, Barkun A, Bridges R, Carter R, de Gara C, Dube C, Enns R, Macintosh D, Forget S, Leontiadis G, Meddings J, Cotton P, Valori R; Canadian Association of Gastroenterology Safety and Quality Indicators in Endoscopy Consensus Group. Indicators of safety compromise in gastrointestinal endoscopy. Can J Gastroenterol. 2012 Feb;26(2):71-8. |
| Armstrong D, Barkun A, Bridges R, Carter R, de Gara C, Dube C, Enns R, Hollingworth R, Macintosh D, Borgaonkar M, Forget S, Leontiadis G, Meddings J, Cotton P, Kuipers EJ; Canadian Association of Gastroenterology Safety and Quality Indicators in Endoscopy Consensus Group. Canadian Association of Gastroenterology consensus guidelines on safety and quality indicators in endoscopy. Can J Gastroenterol. 2012 Jan;26(1):17-31 |
| Bach H, Ko HH, Raizman EA, Attarian R, Cho B, Biet F, Enns R, Bressler B. Immunogenicity of Mycobacterium avium subsp. paratuberculosis proteins in Crohn's disease patients. Scand J Gastroenterol. 2011 Jan;46(1):30-9. |
| Donnellan F, Enns R, Kim E, Lam E, Amar J, Telford J, Byrne MF. Outcome of repeat ERCP after initial failed use of a needle knife for biliary access. Dig Dis Sci. 2012 Apr;57(4):1069-71. |
| Bitton A, Buie D, Enns R, Feagan BG, Jones JL, Marshall JK, Whittaker S, Griffiths AM, Panaccione R; Canadian Association of Gastroenterology Severe Ulcerative Colitis Consensus Group. Treatment of hospitalized adult patients with severe ulcerative colitis: Toronto consensus statements. Am J Gastroenterol. 2012 Feb;107(2):179-94; |
| Muthiah KC, Enns R, Armstrong D, Noble A, Gray J, Sinclair P, Colacino P,Singh H. A survey of the practice of after-hours and emergency endoscopy in Canada. Can J Gastroenterol. 2012 Dec;26(12):871-6. |
| Neal C. Shahidi, George Ou, Sigrid Svarta, Joanna K. Law, Ricky Kwok, Jessica Tong, Eric C. Lam, Robert Enns - Factors Associated With Positive Findings From Capsule Endoscopy in Patients With Obscure Gastrointestinal Bleeding Clinical Gastroenterology and Hepatology, December 2012(Vol. 10, Issue 12, Pages 1381-1385) |
| Gagnon YM, Levy AR, Enns RA, Rioux KP,, -Cost-effectiveness in Canada of intravenous proton pump inhibitors for all patients presenting with acute upper gastrointestinal bleeding., Health and Economics, IN PRINT |
| Chan C and Enns R. Print and Digital Media Reviews on Clinical Gastroenterology 2nd Edition. Gastroenterology 2012 |
| Leddin D, Enns R, Hilsden R, Falllone CA Rabeneck L, Sadowski DC, Singh H, - Colorectal Cancer surveillance after index colonoscopy : guidance from the Canadian Association of Gastroenterology, Can J. Gastroenterol 2013 Apr:27(4)224-8 |
| Feagan BG, McDonald JW, Panaccione R, Enns RA, Bernstein CN, Ponich TP, Bourdages R, Macintosh DG, Dallaire C, Cohen A, Fedorak RN, Paré P, Bitton A, Saibil F, Anderson F, Donner A, Wong CJ, Zou G, Vandervoort MK, Hopkins M, Greenberg GR. Methotrexate in Combination with Infliximab is no More Effective than Infliximab Alone in Patients with Crohn's Disease. Canadian Journal of Gastroenterology. 2013 Nov 21, S0016-5085(13)01671-5. 10.1053 |
| Enns R, Lee S. Preventing post-ERCP pancreatitis. Gastrointest Endosc. 2013 Dec;78(6):851-3. |
| Cooper C, Shafran S, Greenbloom S, Enns R, Farley J, Hilzenrat N, Williams K, Elkashab M, Abadir N, Neuman M. Single-dose infliximab in hepatitis C genotype 1-naive patients with high serum tumour necrosis factor-alpha does not influence efficacy of pegylated interferon alpha-2b/ribavirin therapy.Can J Gastroenterol. 2013 Nov 8. doi:pii: 15887. |
| Brahmania M, Ou G., Bressler B., Ko H.H., Lam E, Telford J, Enns R. 2 L versus 4 L of PEG3350 + electrolytes for outpatient colonic preparation: a randomized, controlled trial. Gastrointestinal Endoscopy 2013Oct 24. YMGE 8295(1-13). |
| Ou G, Svarta S, Chan C, Galorport C, Qian H, Enns R. The effect of chewing gum on small-bowel transit time in capsule endoscopy: a prospective, randomized trial. Gastrointest Endosc. 2013 Oct 7. doi:pii: S0016-5107(13)02327-4. 10.1016 |
| Wong F, Ou G, Svarta S, Kwok R, Donaldson K, Frenette J, Enns R. Do we eradicate Helicobacter pylori in hospitalized patients with peptic ulcer disease. Can J Gastroenterol. 2013 Nov;27(11):636-8 |
| Hookey L, Armstrong D, Enns R, Matlow A, Singh H, Love J. Summary of guidelines for infection prevention and control for flexible gastrointestinal endoscopy. Can J Gastroenterol. 2013 Jun;27(6):347-50 |
| Leddin D, Enns R, Hilsden R, Fallone CA, Rabeneck L, Sadowski DC, Singh H; Colorectal cancer surveillance after index colonoscopy: guidance from the Canadian Association of Gastroenterology. Can J Gastroenterol. 2013 Apr;27(4):224-8. |
| Barkun AN, Bhat M, Armstrong D, Dawes M, Donner A, Enns R, Martin J, Moayyedi P, Romagnuolo J, Stitt L.Effectiveness of disseminating consensus management recommendations for ulcer bleeding: a cluster randomized trial. CMAJ. 2013 Feb 19;185(3):E156-66. |
| Greg Rosenfeld, Yi Tzu Nancy Fu, Brendan Quiney, Hong Qian, Darin Krygier, Jacquie Brown, Patrick Vos, Pari Tiwari, Jennifer Telford, Brian Bressler, Robert Enns.Does training and experience influence the accuracy of computed tomography colonography interpretation? World J Gastroenterol 2014 February 14; 20(6): 1574-1581. |
| Cheriyan D, Enns R. Over the scope clip in the management of GI Defects.Gastrointestinal Endoscopy 2014;in press. [YMGE_8736] |
| G. Leontiadis, L. Hookey, R. Enns, H. Singh, L. Bistritz, L. C. Rioux. Canadian Associates of Gastroenterology policy on the application for, and implementation of, clinical practice guidelins. Can J Gastroenterol Hepatol 2014;28(X):1-8 |
| Yau, A. Ou G., Galorport G., Amar J., Bressler B., Donnellan F., Hin Hin K., Lam E., Enns R., Safety and efficacy of Hemospray® in upper gastrointestinal bleeding. Can Journal Gastroenterol Hepatology, 2014;28:1-5 |
| George Ou, Sigrid Svarta, Calvin Chan, Cherry Galorport, Hong Qian, Robert Enns. The effect of chewing gum on small-bowel transit time in capsule endoscopy: a prospective, randomized trial. Gastrointestinal Endoscopy, April 2014. Volume 79, Issue 4, Pages 630-636. |
| Neal Shahidi, George Ou, Jessica Tong, Ricky Kwok, Cherry Galorport, Joanna K. Law, and Robert EnnsCapsule Endoscopy for Obscure Gastrointestinal Bleeding in Patients with Comorbid Rheumatic Diseases this is same as one above |
| Harminder Singh, Grigorios I. Leontiadis, Lawrence Hookey, Robert Enns, Lana Bistritz, Louis-Charles Rioux, Louise Hope, Paul Sinclair, - Canadian Association of Gastroenterology policy on the application for, and implementation of, clinical practice guidelines. Can J Gastroenterol Hepatol 2014;28 (9):473-480. |
| S. Lee, R. Enns – The hidden realites of endoscopy unity bud-getting. Letter to the Editor. Can J Gastroenterol Hepatol 2014;28 (X):1-2. |
| Fedorak RN, Feagan BG, Hotte N, Leddin D, Dieleman LA, Petrunia DM, Enns R, Bitton A, Chiba N, Paré P,Rostom A, Marshall J, Depew W, Bernstein CN, Panaccione R, Aumais G, Steinhart AH, Cockeram A, Bailey RJ, Gionchetti P, Wong C, Madsen K. The Probiotic VSL#3 Has Anti-inflammatory Effects and Could Reduce Endoscopic Recurrence After Surgery for Crohn's Disease. Clin Gastroenterol Hepatol. 2014 Nov 6. pii: S1542-3565(14)01582-1 |
| George Ou, Neal Shahidi, Cherry Galorport, Oliver Takach, Terry Lee, Robert Enns, Effect of longer battery life on small bowel capsule endoscopy World J Gastroenterol 2015 March 7; 21(9): ISSN 1007-9327 (print) - ISSN 2219-2840 (online) |
| Ryan Scott, MD, and Robert Enns, MD, Advances in Capsule Endoscopy - VideoGastroenterology & Hepatology Volume 11, Issue 9 September 2015 |
| Joel H. Rubenstein, Robert Enns, Joel Heidelbaugh, Alan Barkun, and the Clinical Guidelines Committee.American Gastroenterological Association Institute Guideline on the Diagnosis and Management of Lynch Syndrome - Gastroenterology September 2015;149:777–782 |