Table 1.

Patient characteristics

Age (year, mean ± SD)	62.4 ± 9.5
Male, n (%)	34 (94)
Ejection fraction (%, mean ± SD)	71 ± 8
Preoperative angina, n (%)	35 (97)
Preoperative unstable angina, n (%)	8 (22)
Single vessel coronary artery disease, n (%)	5 (13.9)
Double vessel coronary artery disease, n (%)	5 (13.9)
Triple vessel coronary artery disease, n (%)	26 (72.2)
Preoperative myocardial infarction, n (%)	12 (33.3)
Hypertension, n (%)	14 (39)
Diabetes, n (%)	3 (8)
Cerebrovascular disease, n (%)	1 (3)

n, number of patients.