Procedural characteristics, clinical presentations and outcomes
| Before a state of emergency declaration (n=359) | After a state of emergency declaration (n=63) | P value | |||
| Onset-to-door time, median (IQR), hours | 2.4 | (1.0–8.1) | 4.1 | (1.3–24.5) | 0.02 |
| Late presentation, n (%) | 51 | (14.2) | 16 | (25.4) | 0.03 |
| Killip classification at admission | 0.04 | ||||
| I, n (%) | 290 | (80.8) | 43 | (68.3) | |
| II, n (%) | 8 | (2.2) | 4 | (6.3) | |
| III, n (%) | 11 | (3.1) | 1 | (1.6) | |
| IV, n (%) | 50 | (13.9) | 15 | (23.8) | |
| Primary PCI, n (%) | 296 | (82.5) | 43 | (68.3) | 0.009 |
| Emergent CABG, n (%) | 6 | (1.7) | 2 | (3.2) | 0.42 |
| Mechanical complications, n (%) | 13 | (3.6) | 9 | (14.3) | <0.001 |
| Free wall rupture, n (%) | 1 | (0.3) | 3 | (4.8) | |
| Contained rupture, n (%) | 6 | (1.7) | 3 | (4.8) | |
| Ventricular septal rupture, n (%) | 4 | (1.1) | 3 | (4.8) | |
| Papillary muscle rupture, n (%) | 2 | (0.6) | 0 | (0) | |
| Use of circulatory assist devices, n (%) | 62 | (17.3) | 15 | (23.8) | 0.22 |
| Surgical treatment for mechanical complications, n (%) | 10/13 | (76.9) | 8/9 | (88.9) | 0.47 |
| Cardiogenic embolism, n (%) | 11 | (3.1) | 1 | (1.6) | 0.51 |
| Left ventricular thrombus, n (%) | 8 | (2.2) | 1 | (1.6) | 0.74 |
| In-hospital death | 22 | (6.2) | 4 | (6.4) | 0.95 |
| Cause of death | 0.74 | ||||
| Cardiac death | 13 | (59.1) | 2 | (50.0) | |
| Non-cardiac death | 9 | (40.9) | 2 | (50.0) | |
| Hospital stay, median (IQR), days | 14 | (11–20) | 18 | (14–33) | 0.001 |
P values refer to the comparisons between the two groups.
CABG, coronary artery bypass grafting; PCI, percutaneous coronary intervention.