Paul Dorian


Scientist, Keenan Research Centre for Biomedical Science

Research Programs


Please note: Dr. Dorian is not taking any summer students in 2019.

Dr. Paul Dorian is the Department Director, Division of Cardiology, University of Toronto and Staff Cardiac Electrophysiologist at St. Michael’s Hospital. He is Professor of Medicine in the Division of Cardiology and in the Division of Clinical Pharmacology at the University of Toronto, and a Staff Scientist at the Li Ka Shing Knowledge Institute.

Dr. Dorian received his medical degree from McGill University in Montreal in 1976. He continued training in Internal Medicine and Cardiology at the University of Toronto, and received certification by the Royal College of Physicians and Surgeons of Canada in Internal Medicine in 1983 and certification in Cardiology in 1984. He completed training in Clinical Pharmacology at the University of Toronto in 1982, and received an MSc in Pharmacology from the University of Toronto in 1982. From 1983 to 1985, he completed a Fellowship in Cardiac Electrophysiology at Stanford University Medical Centre in California.

His research interests include basic science research in advanced cardiac life support and atrial fibrillation, the clinical pharmacology of antiarrhythmic drugs, and clinical research on implanted devices, antiarrhythmic drugs, and quality of life in patients with arrhythmias.

He is the immediate Past-President of the Canadian Heart Rhythm Society, Chairman of the Cardiac Arrest Committee, St. Michael’s Hospital, Co-Principle Investigator on the National Institutes of Health funded Resuscitation Outcomes Consortium, and serves on the steering committee of multiple multicenter clinical trials in arrhythmia care. He is the Chair of the Canadian Cardiovascular Society Quality Committee.

He has published over 350 peer reviewed papers and is Associate Editor of the textbook Electrophysiological Disorders of the Heart.


Recent Publications

  1. Johri, AM, Poirier, P, Dorian, P, Fournier, A, Goodman, JM, McKinney, J et al.. Canadian Cardiovascular Society/Canadian Heart Rhythm Society Joint Position Statement on the Cardiovascular Screening of Competitive Athletes. Can J Cardiol. 2019;35 (1):1-11. doi: 10.1016/j.cjca.2018.10.016. PubMed PMID:30595170 .
  2. Krahn, AD, Longtin, Y, Philippon, F, Birnie, DH, Manlucu, J, Angaran, P et al.. Prevention of Arrhythmia Device Infection Trial: The PADIT Trial. J. Am. Coll. Cardiol. 2018;72 (24):3098-3109. doi: 10.1016/j.jacc.2018.09.068. PubMed PMID:30545448 .
  3. Parkash, R, Magee, K, McMullen, M, Clory, M, D'Astous, M, Robichaud, M et al.. The Canadian Community Utilization of Stroke Prevention Study in Atrial Fibrillation in the Emergency Department (C-CUSP ED). Ann Emerg Med. 2018; :. doi: 10.1016/j.annemergmed.2018.09.001. PubMed PMID:30502307 .
  4. Abumuamar, AM, Newman, D, Dorian, P, Shapiro, CM. Cardiac effects of CPAP treatment in patients with obstructive sleep apnea and atrial fibrillation. J Interv Card Electrophysiol. 2018; :. doi: 10.1007/s10840-018-0482-4. PubMed PMID:30415352 .
  5. Andrade, JG, Verma, A, Mitchell, LB, Parkash, R, Leblanc, K, Atzema, C et al.. 2018 Focused Update of the Canadian Cardiovascular Society Guidelines for the Management of Atrial Fibrillation. Can J Cardiol. 2018;34 (11):1371-1392. doi: 10.1016/j.cjca.2018.08.026. PubMed PMID:30404743 .
  6. Banks, L, Goodman, JM, Dorian, P. Letter by Banks et al Regarding Article, "Does High-Intensity Endurance Training Increase the Risk of Atrial Fibrillation? A Longitudinal Study of Left Atrial Structure and Function". Circ Arrhythm Electrophysiol. 2018;11 (8):e006645. doi: 10.1161/CIRCEP.118.006645. PubMed PMID:30354315 .
  7. Kendzerska, T, Gershon, AS, Atzema, C, Dorian, P, Mangat, I, Hawker, G et al.. Sleep Apnea Increases the Risk of New Hospitalized Atrial Fibrillation: A Historical Cohort Study. Chest. 2018;154 (6):1330-1339. doi: 10.1016/j.chest.2018.08.1075. PubMed PMID:30243978 .
  8. Lipowicz, AA, Cheskes, S, Gray, SH, Jeejeebhoy, F, Lee, J, Scales, DC et al.. Incidence, outcomes and guideline compliance of out-of-hospital maternal cardiac arrest resuscitations: A population-based cohort study. Resuscitation. 2018;132 :127-132. doi: 10.1016/j.resuscitation.2018.09.003. PubMed PMID:30201534 .
  9. Cruz, J, Mariano, Z, Dorian, P. Atrial Fibrillation Clinics in Canada: A Nationwide Project Report. Can J Cardiol. 2018;34 (9):1219-1224. doi: 10.1016/j.cjca.2018.05.017. PubMed PMID:30170677 .
  10. Atzema, CL, Dorian, P, Fang, J, Tu, JV, Lee, DS, Chong, AS et al.. A clinical decision instrument to predict 30-day death and cardiovascular hospitalizations after an emergency department visit for atrial fibrillation: The Atrial Fibrillation in the Emergency Room, Part 2 (AFTER2) study. Am. Heart J. 2018;203 :85-92. doi: 10.1016/j.ahj.2018.06.005. PubMed PMID:30053692 .
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Affiliations & Other Activities

  • Staff Cardiac Electrophysiologist, St. Michael’s Hospital
  • Professor, Medicine and Cardiology, St. Michael’s Hospital, University of Toronto
  • Director, Division of Cardiology, University of Toronto