He has led a basic science research program on the mechanisms of ventricular fibrillation, treatment of experimental cardiac arrest, and the circulatory and electrophysiology of cardio pulmonary resuscitation.

He has also been active in a research program on the establishment of optimum systems of care for patients with atrial fibrillation, including assessment of quality of life in patient reported outcomes. He designed and led the implementation of scales to measure quality of life in AF, including the Canadian Cardiovascular Society Severity in Atrial Fibrillation (CCS-SAF) score, The AFSS scale, and the AFEQT scale, which are the most used methods for the measurement of quality of life in patients with AF.