Table 1. Preoperative characteristics of the included patients.
| Variables | Value (N=97) |
|---|---|
| Age (years), mean ± SD | 61.5±8.8 |
| Sex, n (%) | |
| Female | 16 (16.5) |
| Male | 81 (83.5) |
| Hypertension, n (%) | 60 (61.9) |
| DM, n (%) | 34 (35.1) |
| Previous PCI, n (%) | 19 (19.6) |
| Previous stroke, n (%) | 17 (17.5) |
| Previous MI, n (%) | 25 (25.8) |
| NYHA class, n (%) | |
| I | 15 (15.5) |
| II | 82 (84.5) |
| III/IV | 0 |
| Left main disease, n (%) | 18 (18.6) |
| LVEF (%) (preoperative), mean ± SD | 59.8±5.6 |
| LVDD (mm) (preoperative), mean ± SD | 51.5±3.6 |
SD, standard deviation; DM, diabetes mellitus; PCI, percutaneous coronary intervention; MI, myocardial infarction; NYHA, New York Heart Association; LVEF, left ventricle ejection fraction; LVDD, left ventricle diastolic dimension.