Despite increasing recognition of the benefits of off-pump coronary artery
bypass grafting (CABG), concerns persist regarding its impact on long-term
mortality and freedom from reintervention. In this study, we assessed the
impact of off-pump CABG on long-term outcomes.
Methods
From January 2002 to December 2002, a total of 307 consecutive patients who
underwent isolated multivessel off-pump CABG at our institution were
compared with a control group of 397 patients who underwent multivessel
on-pump CABG during the same period. Perioperative data were prospectively
collected and compared. In addition, univariate and risk-adjusted
comparisons between the two groups were performed at 10 years.
Results
After adjusting for clinical covariates, off-pump CABG did not emerge as a
significant independent predictor of long-term mortality [hazard ratio (HR),
0.91; 95% confidence interval (CI), 0.70–1.12], readmission to hospital for
cardiac cause (HR, 0.96; 95% CI, 0.78–1.10), or the need for reintervention
(HR, 0.93; 95% CI, 0.87–1.05).
Conclusions
At long-term follow-up, off-pump CABG remains a safe and effective myocardial
revascularization strategy with no adverse impact on survival or freedom
from reintervention.
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