Table 1.
Patient Characteristics
| Parameter | STEMI (n=305) | NSTEMI (n=461) | P Value |
|---|---|---|---|
| Age, y | 65 (58–72) | 70 (62–75) | <0.001 |
| Sex (female) | 64 (21.0) | 116 (25.2) | 0.190 |
| BMI | 26.6 (24.6–29.4) | 27.2 (24.7–30.1) | 0.082 |
| IDDM | 18 (5.9) | 48 (10.4) | 0.030 |
| Arterial hypertension | 227 (74.4) | 373 (80.9) | 0.048 |
| Hyperlipidemia | 157 (51.5) | 228 (49.5) | 0.563 |
| Smoking | 121 (39.7) | 159 (34.5) | 0.144 |
| COPD | 23 (7.5) | 51 (11.1) | 0.133 |
| Peripheral arterial disease | 18 (5.9) | 56 (12.1) | 0.004 |
| Atrial fibrillation | 18 (5.9) | 48 (10.4) | 0.035 |
| LV function ≤50% | 120 (39.3) | 169 (36.7) | 0.493 |
| Renal impairment, (CC <50 mL/min/1.73 m²) | 31 (10.2) | 92 (20.0) | <0.001 |
| Renal replacement therapy | 2 (0.7) | 2 (0.4) | 0.651 |
| Severely reduced LV function (<30%) | 18 (5.9) | 21 (4.6) | 0.336 |
| EuroSCORE II (%) | 4.12 (2.75–5.81) | 4.58 (2.80–7.74) | 0.009 |
| Prehospital thrombolysis | 43 (14.1) | 3 (0.7) | <0.001 |
| IABP preoperatively | 33 (10.8) | 29 (6.3) | 0.024 |
| Intubated on arrival in the operating room | 2 (0.7) | 8 (1.7) | 0.330 |
| Continuous inotropic support | 2 (0.7) | 8 (1.7) | 0.330 |
| Time from diagnosis to surgery, h | 5.0 (3.2–8.8) | 11.7 (6.4–22.0) | <0.001 |
| Lactate, mmol/L | 1.20 (0.85–1.70) | 1.00 (0.80–1.40) | 0.001 |
| Lactate >2 mmol/L | 58 (19.0) | 46 (10.1) | 0.003 |
| Cerebrovascular event | 15 (4.9) | 29 (6.3) | 0.430 |
| Prior myocardial infarction | 32 (10.5) | 45 (9.8) | 0.746 |
| Prior cardiac surgery | 3 (1.0) | 8 (1.7) | 0.540 |
Values are expressed as count (percentage) or median (range). BMI indicates body mass index; CC, creatinine clearance; COPD, chronic obstructive pulmonary disease; IABP, intra‐aortic balloon pump; IDDM, insulin‐dependent diabetes mellitus; LV, left ventricular; NSTEMI, non–ST‐segment–elevation myocardial infarction; STEMI, ST‐segment–elevation myocardial infarction.