His research interests include perioperative anticoagulant management and related guideline development (2008, 2012, 2020 ACCP Guidelines); and the prevention, treatment and prognosis of patients with venous thromboembolism.
Dr. Douketis is a Fellow of the Canadian Academy of Health Science, President of Thrombosis Canada, Associate Editor of McMaster Textbook of Internal Medicine, Editor-in-Chief of Canadian Journal of General Internal Medicine, Deputy Editor
of Annals of Internal Medicine ACP Journal Club, and Associate Editor of Thrombosis and Haemostasis. He has over 350 peer-reviewed publications (h-index = 97, i-index = 255, 82K citations).