Five-Year Outcomes After On-Pump and Off-Pump Coronary-Artery Bypass [1]
The 5-year outcomes of a Veterans Affairs trial of off-pump vs on-pump CABG are reported. Mortality in the off-pump group was 15.2% compared to 11.9% in the on-pump group (RR 1.28; p=0.02). Composite adverse events were more common in the off-pump group (31.0% vs 27.1%; RR 1.14; p=0.046). Repeat CABG was more common for the off-pump group (1.4% vs 0.5%; p=0.02). No differences were observed in nonfatal MI, death from cardiac causes, or repeat revascularization.