Stephen E. Fremes

Sunnybrook Health Science Centre, University of Toronto

Papers

Total Citations

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About

Stephen E. Fremes is a leading cardiovascular surgeon and researcher whose work has fundamentally shaped modern coronary artery bypass grafting (CABG). His primary research areas include surgical myocardial revascularization, arterial graft selection, and the comparative effectiveness of surgical versus percutaneous coronary interventions. Fremes is best known for championing the use of the radial artery in CABG, demonstrating through rigorous clinical studies that it improves long-term outcomes compared to traditional saphenous vein grafts. His landmark paper on new strategies for surgical myocardial revascularization (58 citations) synthesizes evidence for hybrid CABG, a technique combining surgical grafting of the left anterior descending artery with percutaneous intervention for other vessels—offering patients the durability of surgery with the reduced invasiveness of stenting. With a career spanning decades, Fremes has authored over 300 peer-reviewed publications, earning more than 10,000 citations. He has served as principal investigator for major multicenter trials and holds leadership roles in the Society of Thoracic Surgeons. His work continues to influence clinical guidelines and surgical practice worldwide, making him a pivotal figure in advancing evidence-based cardiac surgery.