Table 1:
Baseline patient characteristics
| Variables | Survivors (n = 73) | Non-survivors (n = 100) | P-value |
|---|---|---|---|
| Age (years) | 65.4 (±11.0) | 65.3 (±10.5) | 0.933 |
| Female gender | 27 (36.9) | 54 (54.0) | 0.031 |
| BMI (kg/m2) | 27.5 (±4.8) | 28.2 (±5.4) | 0.392 |
| Diabetes mellitus | 20 (27.4) | 42 (42.0) | 0.035 |
| Arterial hypertension | 56 (76.7) | 80 (80.0) | 0.282 |
| Pulmonary hypertension | 14 (19.2) | 22 (22.0) | 0.510 |
| COPD | 2 (2.7) | 7 (7.0) | 0.306 |
| Smoker | 26 (35.6) | 29 (29.0) | 0.494 |
| Hyperlipidaemia | 39 (53.4) | 50 (50.0) | 0.789 |
| Peripheral vascular disease | 16 (21.9) | 37 (37.0) | 0.021 |
| Neurological dysfunction | 10 (13.7) | 11 (11.0) | 0.662 |
| Preoperative creatinine (mg/dl) | 1.2 (±1.1) | 1.2 (±0.5) | 0.917 |
| Preoperative GFR (ml/min) | 82.6 (±39.9) | 72.5 (±32.7) | 0.080 |
| Preoperative dialysis | 1 (1.4) | 4 (4.0) | 0.337 |
| Elective surgery | 41 (56.2) | 51 (51.0) | 0.501 |
| Urgent surgery | 19 (26.0) | 22 (22.0) | 0.538 |
| Emergency surgery | 13 (17.8) | 27 (27.0) | 0.157 |
| Left main stenosis | 8 (10.9) | 11 (11.0) | 0.683 |
| Prior PCI | 9 (12.3) | 17 (17.0) | 0.394 |
| Prior MI | 14 (19.2) | 21 (21.0) | 0.706 |
| MI <48 h | 4 (5.5) | 2 (2.0) | 0.683 |
| MI 2–21 days | 3 (4.1) | 3 (3.0) | 0.237 |
| MI 22–90 days | 2 (2.7) | 5 (5.0) | 0.425 |
| MI >91 days | 5 (6.8) | 11 (11.0) | 0.311 |
| Prior heart surgery | 12 (24.5) | 37 (37) | 0.003 |
| Months since prior heart surgery | 57 (7–141) | 48 (9–102) | 0.633 |
| Logistic EuroSCORE (%) | 10.9 (±13.3) | 17.5 (±18.1) | 0.009 |
| Active endocarditis | 6 (8.2) | 14 (14.0) | 0.240 |
| Type A aortic dissection | 0 (0) | 4 (4.0) | 0.139 |
Values are represented as number (percentage), mean (±standard deviation) or median (interquartile range). P values < 0.05 in bold are statistically significant.
BMI: body mass index; COPD: chronic obstructive pulmonary disease; GFR: glomerular filtration rate; LVEF: left ventricular ejection fraction; MI: myocardial infarction; PCI: percutaneous coronary intervention.