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Updated: Jul 12, 2025
Surgical Swine Model of Chronic Cardiac Ischemia Treated by Off-Pump Coronary Artery Bypass Graft Surgery
Published on: March 27, 2018
[Ten-year survival after off-pump coronary artery bypass grafting compared with traditional bypass grafting]
Roberto González L1, Diego Saldivia Z2, Rodrigo Reyes M1
1Centro Cardiovascular, Hospital Clínico Regional de Concepción "Dr. Guillermo Grant Benavente", Concepción, Chile.
Background:
Long-term outcomes of Off-Pump Coronary Artery Bypass Grafting (OPCAB) as an alternative to the traditional Coronary Artery Bypass Grafting (CABG) technique with cardiopulmonary bypass (CPB) are not well defined.
Aim:
To compare 10-year survival of isolated OPCAB versus CABG with CPB.
Material And Methods:
Analysis of information obtained from databases, clinical records and surgical protocols of patients treated with isolated CABG between January 2006 and November 2008 at a Regional Hospital. Of 658 isolated CABG, 192 (29.2%) were OPCAB and 466 (79.9%) CPB. Propensity Score Matching (PSM) was performed to compare both groups. After PSM, two groups of 192 cases were obtained. Mortality data was obtained from the Chilean public identification service. Ten-year survival was calculated and compared with Kaplan-Meier and log-rank methods.
Results:
Follow-up data was obtained in all cases. No statistically significant differences were found when comparing 10-year survival between OPCAB versus CPB (78.6% and 80.2% respectively, p 0.720). There was also no statistical difference in cardiovascular death free survival (90.1% with CPB versus 89.1% OPCAB, p 0.737). Survival was comparable when analyzing subgroups with diabetes mellitus, left ventricular dysfunction or chronic kidney disease, among others.
Conclusions:
In our series, OPBAB has a comparable 10-year survival with CABG with CPB.
