Table 1. Patient Characteristics

Data are mean ± SD; No. of bypasses and arterial grafts are median (range).

*P < 0.05 between groups.

BMI = body mass index; EF = ejection fraction; AMI = acute myocardial infarction; COPD = chronic obstructive pulmonary disease; ACE = angiotension-converting enzyme; CPB = cardiopulmonary bypass.