Kidney Function After Off-Pump or On-Pump Coronary Artery Bypass Graft Surgery

This large-scale study evaluated kidney function postoperatively and at 1 year after either on-pump or off-pump isolated first time CABG.  Nearly 3000 pts were enrolled over a 2 year period.  Outcomes were a >50% increase in creatinine within 30 days of operation (AKI) and >20% loss of GFR at 1 year.  Off-pump bypass was associated with a lower incidence of AKI (17.5% vs 20.8%), but the rates of loss of kidney function at 1 year were similar (17.1% vs 15.3%).