Paul Dorian


Scientist, Keenan Research Centre for Biomedical Science

Research Programs


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

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. Ha, ACT, Stewart, J, Klein, G, Roy, D, Connolly, S, Koren, A et al.. Impact of electrical cardioversion on quality of life for patients with symptomatic persistent atrial fibrillation: Is there a treatment expectation effect?. Am. Heart J. 2020;226 :152-160. doi: 10.1016/j.ahj.2020.05.004. PubMed PMID:32580074 .
  2. Chee, JN, Simpson, C, Sheldon, RS, Dorian, P, Dow, J, Guzman, J et al.. A Systematic Review of the Risk of Motor Vehicle Collision in Patients With Syncope. Can J Cardiol. 2020; :. doi: 10.1016/j.cjca.2020.02.070. PubMed PMID:32504546 .
  3. Dorian, P, Brijmohan HBSc, A. The Role of Quality of Life Indices in Patient-Centred Management of Arrhythmia. Can J Cardiol. 2020; :. doi: 10.1016/j.cjca.2020.03.014. PubMed PMID:32502423 .
  4. Cheskes, S, Dorian, P, Feldman, M, McLeod, S, Scales, DC, Pinto, R et al.. Reply to: Kumar et al. "Double Sequential External Defibrillation". Resuscitation. 2020;152 :214. doi: 10.1016/j.resuscitation.2020.05.017. PubMed PMID:32479866 .
  5. Banks, L, Altaha, MA, Yan, AT, Dorian, P, Konieczny, K, Deva, DP et al.. Left Ventricular Fibrosis in Middle-Age Athletes and Physically Active Adults. Med Sci Sports Exerc. 2020; :. doi: 10.1249/MSS.0000000000002411. PubMed PMID:32472930 .
  6. Geri, G, Scales, DC, Koh, M, Wijeysundera, HC, Lin, S, Feldman, M et al.. Healthcare costs and resource utilization associated with treatment of out-of-hospital cardiac arrest. Resuscitation. 2020; :. doi: 10.1016/j.resuscitation.2020.04.032. PubMed PMID:32422247 .
  7. Dorian, P, Allan, KS, Grant, K. Retrieving AEDs to save a life: more complicated than it seems. Resuscitation. 2020;151 :213-214. doi: 10.1016/j.resuscitation.2020.04.025. PubMed PMID:32360425 .
  8. Sequeira, N, D'Souza, D, Angaran, P, Aves, T, Dorian, P. Common wearable devices demonstrate variable accuracy in measuring heart rate during supraventricular tachycardia. Heart Rhythm. 2020;17 (5 Pt B):854-859. doi: 10.1016/j.hrthm.2020.02.018. PubMed PMID:32354450 .
  9. Dorian, P, Goodman, JM, Connelly, KA. Policies to Prevent Sudden Cardiac Death in Young Athletes: Challenging, But More Testing Is Not the Answer. J Am Heart Assoc. 2020;9 (8):e016332. doi: 10.1161/JAHA.120.016332. PubMed PMID:32306795 .
  10. Cheskes, S, Koh, M, Turner, L, Heslegrave, R, Verbeek, R, Dorian, P et al.. Field Implementation of Remote Ischemic Conditioning in ST-Segment-Elevation Myocardial Infarction: The FIRST Study. Can J Cardiol. 2019; :. doi: 10.1016/j.cjca.2019.11.029. PubMed PMID:32305146 .
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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