Table 1.
Preoperative demographic and clinical characteristics.
| Variables | Total (n=920) |
|---|---|
| Age (years), mean±SD | 56.7±15.8 |
| Sex (women), (n) % | (432) 47% |
| Type of health service system, (n) % | |
| The Brazilian National Health System (SUS) | 744 (80.8%) |
| Private | 176 (19.2%) |
| Preoperative comorbidity, (n) % | |
| Coronary artery disease, (n) % | 186 (20.2%) |
| Diabetes mellitus, (n) % | 159 (17.3%) |
| Dyslipidemia, (n) % | 243 (26.4%) |
| Hypertension, (n) % | 566 (61.5%) |
| Previous myocardial infarction, (n) % | 52 (5.7%) |
| Previous cardiovascular surgery, (n) % | 183 (19.9%) |
| Previous stroke, (n) % | 51 (5.5%) |
| Peripheral artery disease, (n) % | (37) 4% |
| Congestive heart failure, (n) % | (337) 36.6% |
| NYHA I | (17) 5% |
| NYHA II | (142) 42.1% |
| NYHA III | (134) 39.8% |
| NYHA IV | (44) 13.1% |
| LVEF < 40%, (n) % | (58) 6.3% |
| Chronic renal failure, (n) % | 49 (5.3%) |
| Dialytic, (n) % | 15 (1.6%) |
| Current smoking, (n) % | (78) 8.5% |
| COPD, (n) % | (96) 7.1% |
| Arrhythmia, (n) % | (207) 22.5% |
| Active endocarditis, (n) % | (56) 6.1% |
| EuroSCORE I – Log, mean ± SD | 7.9±10.4 |
| EuroSCORE II – Log, mean ± SD | 3.0±4.4 |
Data are shown as mean ± standard deviation (SD). COPD=chronic obstructive pulmonary disease; EuroSCORE=European System for Cardiac Operative Risk Evaluation; LVEF=left ventricular ejection fraction; NYHA=New York Heart Association; SUS=Sistema Único de Saúde