Patterns of Postoperative Systemic Vascular Resistance in a Randomized Trial of Conventional On-Pump Versus Off-Pump Coronary Artery Bypass Graft Surgery

The incidence of low SVR, and patterns of SVR changes were similar in ONCAB and OPCAB, and were clinically unimportant as few patients required vasopressor support. Cardiac outputs and clinical outcomes were excellent in both groups.