Table 1.
Baseline characteristics of patients according to overall survival
| Variable | Patients (n = 720) | Alive (n = 318) | Dead (n = 402) | P-value |
|---|---|---|---|---|
| Age (years) | 70.0 (62.0–77.0) | 67.0 (60.0–73.3) | 72.0 (64.0–78.0) | <0.001 |
| Sex (male) | 465 (64.6) | 217 (68.2) | 248 (61.7) | 0.068 |
| Hypertension | 445 (61.8) | 198 (62.3) | 247 (61.4) | 0.822 |
| Smoking | 270 (37.5) | 131 (41.2) | 139 (34.6) | 0.069 |
| Diabetes mellitus | 162 (22.5) | 63 (19.8) | 99 (24.6) | 0.124 |
| Chronic kidney disease | 91 (12.6) | 29 (9.1) | 62 (15.4) | 0.011 |
| Dyslipidaemia | 240 (33.3) | 122 (38.4) | 118 (29.4) | 0.011 |
| ECG pattern STEMI NSTEMI |
606 (86.9) 91 (13.1) |
268 (86.5) 42 (13.5) |
338 (87.3) 49 (12.7) |
0.730 |
| AMI localization Septal/anterior Lateral Inferior |
257 (41.7) 48 (7.8) 312 (50.6) |
114 (41.5) 24 (8.7) 137 (49.8) |
143 (41.8) 24 (7.0) 175 (51.2) |
0.729 |
| Pre-operative stability Stable Unstable |
235 (32.6) 485 (67.4) |
132 (41.5) 186 (58.5) |
103 (25.6) 299 (74.4) |
<0.001 |
| Cardiogenic shock | 404 (56.1) | 141 (44.3) | 263 (65.4) | <0.001 |
| Cardiac arrest | 73 (10.1) | 15 (4.7) | 58 (14.4) | <0.001 |
| Cardiac tamponade | 119 (16.5) | 48 (15.1) | 71 (17.7) | 0.357 |
| Pre-operative IABP | 393 (54.6) | 159 (50.0) | 234 (58.2) | 0.028 |
| Pre-operative ECMO | 63 (8.8) | 18 (5.7) | 45 (11.2) | 0.009 |
| Pre-operative LVEF (%) | 45.0 (35.0–50.0) | 45.0 (39.0–52.0) | 40.0 (30.0–50.0) | 0.001 |
| Coronary angiography | 600 (83.3) | 272 (85.5) | 328 (81.6) | 0.159 |
| PCI | 205 (28.5) | 81 (25.6) | 124 (30.8) | 0.119 |
| Previous thrombolysis | 44 (6.1) | 15 (4.7) | 29 (7.2) | 0.165 |
| Hours from MC diagnosis to surgery | 24.0 (3.0–108.0) | 42.0 (4.0–168.0) | 11.0 (3.0–72.0) | <0.001 |
Values are median (interquartile range) or n (%).
STEMI, ST-elevation myocardial infarction; NSTEMI, non-ST-elevation myocardial infarction; AMI, acute myocardial infarction; IABP, intra-aortic balloon pump; ECMO, extracorporeal membrane oxygenation; LVEF, left ventricular ejection fraction; PCI, percutaneous coronary intervention.