World's Best Scientists 2026 revealed!

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Medicine

D-Index
96
Citations
38395
World Ranking
9569
National Ranking
377

Overview

Alan N. Barkun is affiliated with the McGill University Health Centre in Canada. Their research primarily focuses on the field of medicine, with significant contributions to oncology, surgery, pulmonary and respiratory medicine, gastroenterology, and cardiology and cardiovascular medicine.

The scientist's work covers several main topics, including:

  • Colorectal Cancer Screening and Detection
  • Gastrointestinal Bleeding Diagnosis and Treatment
  • Gastric Cancer Management and Outcomes
  • Pancreatic and Hepatic Oncology Research
  • Gallbladder and Bile Duct Disorders
  • Esophageal and GI Pathology
  • Gastrointestinal Tumor Research and Treatment

Alan N. Barkun has published extensively in various scholarly venues. Frequent publication locations include:

  • Gastrointestinal Endoscopy (46 publications)
  • Journal of the Canadian Association of Gastroenterology (36 publications)
  • Gastroenterology (23 publications)
  • Endoscopy (16 publications)
  • The American Journal of Gastroenterology (13 publications)

Coauthors who have collaborated often with Barkun include:

  • Myriam Martel (83 joint publications)
  • Daniel von Renteln (58 joint publications)
  • Yen-I Chen (41 joint publications)
  • Nauzer Forbes (38 joint publications)
  • Roupen Djinbachian (28 joint publications)

Selected recent papers authored or coauthored by Barkun reflect ongoing engagement with clinical guidelines and research on gastrointestinal bleeding and cancer risks. These include:

  • "ACG Clinical Guideline: Upper Gastrointestinal and Ulcer Bleeding," 2021, The American Journal of Gastroenterology
  • "Effects of a high-dose 24-h infusion of tranexamic acid on death and thromboembolic events in patients with acute gastrointestinal bleeding (HALT-IT): an international randomised, double-blind, placebo-controlled trial," 2020, The Lancet
  • "American College of Gastroenterology-Canadian Association of Gastroenterology Clinical Practice Guideline: Management of Anticoagulants and Antiplatelets During Acute Gastrointestinal Bleeding and the Periendoscopic Period," 2022, The American Journal of Gastroenterology
  • "Proton pump inhibitors and risk of gastric cancer: population-based cohort study," 2021, Gut
  • "Association of Elevated Amyloid and Tau Positron Emission Tomography Signal With Near-Term Development of Alzheimer Disease Symptoms in Older Adults Without Cognitive Impairment," 2022, JAMA Neurology

Best Publications

  • International Consensus Recommendations on the Management of Patients With Nonvariceal Upper Gastrointestinal Bleeding

    Alan N. Barkun;Marc Bardou;Ernst J. Kuipers;Joseph Sung

  • Use of Gastric Acid-Suppressive Agents and the Risk of Community-Acquired Clostridium difficile-Associated Disease

    Sandra Dial;J. A. C. Delaney;Alan N. Barkun;Samy Suissa

  • SCENIC international consensus statement on surveillance and management of dysplasia in inflammatory bowel disease

    Loren Laine;Loren Laine;Tonya Kaltenbach;Alan Barkun;Kenneth R. McQuaid

  • Omeprazole Compared with Misoprostol for Ulcers Associated with Nonsteroidal Antiinflammatory Drugs

    Christopher J. Hawkey;Jeffrey A. Karrasch;Leszek Szczepanski;Donald G. Walker

  • Optimizing Adequacy of Bowel Cleansing for Colonoscopy: Recommendations From the US Multi-Society Task Force on Colorectal Cancer

    David A. Johnson;Alan N. Barkun;Larry B. Cohen;Jason A. Dominitz

  • American Gastroenterological Association Institute Guideline on Initial Management of Acute Pancreatitis.

    Seth D. Crockett;Sachin Wani;Timothy B. Gardner;Yngve Falck-Ytter;Yngve Falck-Ytter

  • Obesity and colorectal cancer

    Marc Bardou;Alan N Barkun;Alan N Barkun;Myriam Martel;Myriam Martel

  • Consensus recommendations for managing patients with nonvariceal upper gastrointestinal bleeding.

    Alan Barkun;Marc Bardou;John K. Marshall

  • Bile duct obstruction and choledocholithiasis: diagnosis with MR cholangiography.

    L. Guibaud;P. M. Bret;C. Reinhold;Mostafa Atri

  • Magnetic Resonance Cholangiopancreatography: A Meta-Analysis of Test Performance in Suspected Biliary Disease

    Joseph Romagnuolo;Marc Bardou;Elham Rahme;Lawrence Joseph

  • Randomised controlled trial of laparoscopic versus mini cholecystectomy

    J.S. Barkun;J.S. Sampalls;G. Fried;M.J. Wexler

  • Management of Acute Bleeding from a Peptic Ulcer

    Ian M. Gralnek;Alan N. Barkun;Marc Bardou

  • The Canadian Registry on Nonvariceal Upper Gastrointestinal Bleeding and Endoscopy (RUGBE): Endoscopic hemostasis and proton pump inhibition are associated with improved outcomes in a real-life setting.

    Alan Barkun;Sandrine Sabbah;Robert Enns;David Armstrong

  • Management of Nonvariceal Upper Gastrointestinal Bleeding: Guideline Recommendations From the International Consensus Group.

    Alan N. Barkun;Majid Almadi;Ernst J. Kuipers;Loren Laine

  • Useful Predictors of Bile Duct Stones in Patients Undergoing Laparoscopic Cholecystectomy

    Alan N. Barkun;Jeffrey S. Barkun;Gerald M. Fried;Gabriella Ghitulescu

  • Patient nonadherence to medication in inflammatory bowel disease.

    Maida J Sewitch;Michal Abrahamowicz;Michal Abrahamowicz;Alan Barkun;Alain Bitton

  • The prevalence of clinically significant endoscopic findings in primary care patients with uninvestigated dyspepsia: the Canadian Adult Dyspepsia Empiric Treatment - Prompt Endoscopy (CADET-PE) study.

    A. B. R. Thomson;A. N. Barkun;D. Armstrong;N. Chiba

  • Pancreas divisum: evaluation with MR cholangiopancreatography.

    P M Bret;C Reinhold;P Taourel;L Guibaud

  • Anatomic variants of the biliary tree: diagnosis with MR cholangiopancreatography

    P Taourel;P M Bret;C Reinhold;A N Barkun

  • ACG Clinical Guideline: Upper Gastrointestinal and Ulcer Bleeding.

    Loren Laine;Alan N Barkun;John R Saltzman;Myriam Martel

Frequent Co-Authors

Ernst J. Kuipers
Ernst J. Kuipers Nanyang Technological University
Joseph J.Y. Sung
Joseph J.Y. Sung Nanyang Technological University
Loren Laine
Loren Laine Yale University
Lawrence Joseph
Lawrence Joseph McGill University
Ian M. Gralnek
Ian M. Gralnek Technion – Israel Institute of Technology
Bret T. Petersen
Bret T. Petersen Mayo Clinic
Peter B. Cotton
Peter B. Cotton Medical University of South Carolina
James Y.W. Lau
James Y.W. Lau Chinese University of Hong Kong
Holger J. Schünemann
Holger J. Schünemann Humanitas University
Joachim Mössner
Joachim Mössner Leipzig University

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