Iqwal Mangat


Project Investigator, Keenan Research Centre for Biomedical Science


Dr. Iqwal Mangat is an Assistant Professor of Medicine at the University of Toronto, and is a practicing cardiologist at St. Michael’s Hospital. He is currently the Director of the Arrhythmia Program at St. Michael’s Hospital. Dr. Mangat received his MD from the University of Toronto in 1993, and completed his Cardiology training at the University of Toronto in 1999. He completed training in Adult Cardiac Electrophysiology at the University of California, San Francisco in 2001, and was appointed Lecturer at UCSF from July 2001 to June 2002. Dr. Mangat returned to Toronto and joined the Division of Cardiology at St. Michael’s Hospital in October 2002. Dr. Mangat’s clinical and research interests include the following:

  • Evaluation and management of patients with syncope, palpitations, risk factors for sudden cardiac death
  • Arrhythmia management including supraventricular and ventricular tachycardias, inherited arrhythmic syndromes including RV dysplasia, long QT syndrome and Brugada syndrome
  • Special interest in atrial fibrillation, including novel therapeutic strategies and catheter ablation
  • Spearheaded the development of an Atrial Fibrillation Centre at St. Michael’s Hospital (July 2009) which is a rapid access centre for management of patients with atrial fibrillation, with a focus on patient education

Please note: Dr. Mangat is no longer taking any further summer students for this year.

Recent Publications

  1. Andrade, JG, Champagne, J, Dubuc, M, Deyell, MW, Verma, A, Macle, L et al.. Cryoballoon or Radiofrequency Ablation for Atrial Fibrillation Assessed by Continuous Monitoring: A Randomized Clinical Trial. Circulation. 2019;140 (22):1779-1788. doi: 10.1161/CIRCULATIONAHA.119.042622. PubMed PMID:31630538 .
  2. Azizi-Namini, P, Ahmed, M, Yan, AT, Desjardins, S, Al-Hesayen, A, Mangat, I et al.. Prevalence of Thiamin Deficiency in Ambulatory Patients with Heart Failure. J Acad Nutr Diet. 2019;119 (7):1160-1167. doi: 10.1016/j.jand.2019.01.015. PubMed PMID:30928321 .
  3. Burstein, B, Barbosa, RS, Samuel, M, Kalfon, E, Philippon, F, Birnie, D et al.. Prevention of venous thrombosis after electrophysiology procedures: a survey of national practice. J Interv Card Electrophysiol. 2018;53 (3):357-363. doi: 10.1007/s10840-018-0461-9. PubMed PMID:30298364 .
  4. 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 .
  5. Kotha, VK, Deva, DP, Connelly, KA, Freeman, MR, Yan, RT, Mangat, I et al.. Cardiac MRI and radionuclide ventriculography for measurement of left ventricular ejection fraction in ICD candidates. Magn Reson Imaging. 2018;52 :69-74. doi: 10.1016/j.mri.2018.05.012. PubMed PMID:29859946 .
  6. Parkash, R, Thibault, B, Philippon, F, Mangat, I, Coutu, B, Bennett, M et al.. Canadian Registry of Implantable Electronic Device Outcomes: Longer-term follow-up of the Riata lead under advisory. Heart Rhythm. 2018;15 (4):524-529. doi: 10.1016/j.hrthm.2017.11.033. PubMed PMID:29198903 .
  7. Golian, M, Angaran, P, Mangat, I. Non-arrhythmic pre-excitation-induced cardiomyopathy. Indian Pacing Electrophysiol J. ;18 (2):80-83. doi: 10.1016/j.ipej.2017.10.005. PubMed PMID:29111169 PubMed Central PMC5998208.
  8. Parkash, R, Wells, GA, Sapp, JL, Healey, JS, Tardif, JC, Greiss, I et al.. Effect of Aggressive Blood Pressure Control on the Recurrence of Atrial Fibrillation After Catheter Ablation: A Randomized, Open-Label Clinical Trial (SMAC-AF [Substrate Modification With Aggressive Blood Pressure Control]). Circulation. 2017;135 (19):1788-1798. doi: 10.1161/CIRCULATIONAHA.116.026230. PubMed PMID:28228428 .
  9. Jenkins, DJA, Freeman, M, Mangat, I, Srichaikul, K, Jayalath, VH, Faulkner, D et al.. Flecainide and elevated liver enzymes in α1-antitrypsin deficiency. HeartRhythm Case Rep. 2016;2 (3):237-240. doi: 10.1016/j.hrcr.2016.01.005. PubMed PMID:28491677 PubMed Central PMC5419749.
  10. Lee, DS, Hardy, J, Yee, R, Healey, JS, Birnie, D, Simpson, CS et al.. Clinical Risk Stratification for Primary Prevention Implantable Cardioverter Defibrillators. Circ Heart Fail. 2015;8 (5):927-37. doi: 10.1161/CIRCHEARTFAILURE.115.002414. PubMed PMID:26224792 PubMed Central PMC4568903.
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Affiliations & Other Activities

  • Director, Arrhythmia Service, St. Michael’s Hospital
  • Staff Cardiologist, St. Michael’s Hospital
  • Assistant Professor, Faculty of Medicine, University of Toronto