Rodolfo V Rocha1, Derrick Y Tam1,2, Reena Karkhanis1,2, Xuesong Wang3, Peter C Austin2,3, Dennis T Ko3,4, Mario Gaudino5, Alistair Royse6,7, Stephen E Fremes1,2. 1. Schulich Heart Centre, Sunnybrook Health Sciences Centre, Division of Cardiac Surgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada. 2. Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada. 3. Cardiovascular Program, ICES, Toronto, Ontario, Canada. 4. Schulich Heart Centre, Sunnybrook Health Sciences Centre, Division of Cardiology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada. 5. Department of Cardio-Thoracic Surgery, Weill Cornell Medicine, New York, New York. 6. Division of Cardiac Surgery, Royal Melbourne Hospital, Parkville, Victoria, Australia. 7. Department of Surgery, The University of Melbourne, Melbourne, Victoria, Australia.
Abstract
Importance: The optimal conduits for coronary artery bypass grafting (CABG) remain controversial in multivessel coronary artery disease. Objective: To compare the long-term clinical outcomes of total arterial revascularization (TAR) vs non-TAR (CABG with at least 1 arterial and 1 saphenous vein graft) in a multicenter population-based study. Design, Setting, and Participants: This multicenter population-based cohort study using propensity score matching took place from October 2008 to March 2017 in Ontario, Canada, with a mean and maximum follow-up of 4.6 and 9.0 years, respectively. Individuals with primary isolated CABG were identified, with at least 1 arterial graft. Exclusion criteria were individuals from out of province and younger than 18 years. Patients undergoing a cardiac reoperation or those in cardiogenic shock were also excluded because these conditions would potentially bias the surgeon toward not performing TAR. Analysis began April 2019. Exposures: Total arterial revascularization. Main Outcomes and Measures: Primary outcome was time to first event of a composite of death, myocardial infarction, stroke, or repeated revascularization (major adverse cardiac and cerebrovascular events). Secondary outcomes included the individual components of the primary outcome. Results: Of 49 404 individuals with primary isolated CABG, 2433 (4.9%) received TAR, with the total number of bypasses being 2, 3, and 4 or more vessels in 1521 (62.5%), 865 (35.6%), and 47 individuals (1.9%), respectively. The mean (SD) age was 61.2 (10.4) years and 1983 (81.5%) were men. After propensity score matching, 2132 patient pairs were formed, with equal total number of bypasses (mean [SD], 2.4 [0.5]) but with more arterial grafts in the TAR group (mean [SD], 2.4 [0.5] vs 1.2 [0.4]; P < .01). In-hospital death (15 [0.7%] vs 21 [1.0%]; P = .32) did not differ between TAR vs non-TAR groups after propensity score matching. Throughout 8 years, TAR was associated with improved freedom from major adverse cardiac and cerebrovascular events (hazard ratio, 0.78; 95% CI, 0.68-0.89), death (hazard ratio, 0.80; 95% CI, 0.66-0.97), and myocardial infarction (hazard ratio, 0.69; 95% CI, 0.51-0.92). There was no difference in stroke and repeated revascularization. Conclusions and Relevance: Total arterial revascularization was associated with improved long-term freedom from major adverse cardiac and cerebrovascular events, death, and myocardial infarction and may be the procedure of choice for patients with reasonable life expectancy requiring CABG.
Importance: The optimal conduits for coronary artery bypass grafting (CABG) remain controversial in multivessel coronary artery disease. Objective: To compare the long-term clinical outcomes of total arterial revascularization (TAR) vs non-TAR (CABG with at least 1 arterial and 1 saphenous vein graft) in a multicenter population-based study. Design, Setting, and Participants: This multicenter population-based cohort study using propensity score matching took place from October 2008 to March 2017 in Ontario, Canada, with a mean and maximum follow-up of 4.6 and 9.0 years, respectively. Individuals with primary isolated CABG were identified, with at least 1 arterial graft. Exclusion criteria were individuals from out of province and younger than 18 years. Patients undergoing a cardiac reoperation or those in cardiogenic shock were also excluded because these conditions would potentially bias the surgeon toward not performing TAR. Analysis began April 2019. Exposures: Total arterial revascularization. Main Outcomes and Measures: Primary outcome was time to first event of a composite of death, myocardial infarction, stroke, or repeated revascularization (major adverse cardiac and cerebrovascular events). Secondary outcomes included the individual components of the primary outcome. Results: Of 49 404 individuals with primary isolated CABG, 2433 (4.9%) received TAR, with the total number of bypasses being 2, 3, and 4 or more vessels in 1521 (62.5%), 865 (35.6%), and 47 individuals (1.9%), respectively. The mean (SD) age was 61.2 (10.4) years and 1983 (81.5%) were men. After propensity score matching, 2132 patient pairs were formed, with equal total number of bypasses (mean [SD], 2.4 [0.5]) but with more arterial grafts in the TAR group (mean [SD], 2.4 [0.5] vs 1.2 [0.4]; P < .01). In-hospital death (15 [0.7%] vs 21 [1.0%]; P = .32) did not differ between TAR vs non-TAR groups after propensity score matching. Throughout 8 years, TAR was associated with improved freedom from major adverse cardiac and cerebrovascular events (hazard ratio, 0.78; 95% CI, 0.68-0.89), death (hazard ratio, 0.80; 95% CI, 0.66-0.97), and myocardial infarction (hazard ratio, 0.69; 95% CI, 0.51-0.92). There was no difference in stroke and repeated revascularization. Conclusions and Relevance: Total arterial revascularization was associated with improved long-term freedom from major adverse cardiac and cerebrovascular events, death, and myocardial infarction and may be the procedure of choice for patients with reasonable life expectancy requiring CABG.
Authors: Frans J Beerkens; Bimmer E Claessen; Marielle Mahan; Mario F L Gaudino; Derrick Y Tam; José P S Henriques; Roxana Mehran; George D Dangas Journal: Nat Rev Cardiol Date: 2021-10-05 Impact factor: 32.419
Authors: Sérgio C Rayol; Jef Van den Eynde; Luiz Rafael P Cavalcanti; Antonio Carlos Escorel; Arian Arjomandi Rad; Andrea Amabile; Wilson Botelho; Arjang Ruhparwar; Konstantin Zhigalov; Alexander Weymann; Dario Celestino Sobral; Michel Pompeu B O Sá Journal: Braz J Cardiovasc Surg Date: 2021-02-01
Authors: Derrick Y Tam; Rodolfo V Rocha; Jiming Fang; Maral Ouzounian; Joanna Chikwe; Jennifer Lawton; Dennis T Ko; Peter C Austin; Mario Gaudino; Stephen E Fremes Journal: Heart Date: 2020-10-20 Impact factor: 5.994