Clinical complications and mortality of patients with STEMI treated with PPCI
| Complications and mortality | Total (n=1818) | Age <50 (n=465) | Age ≥50 (n=1353) | P value |
| Mortality | ||||
| In-hospital | 121 (6.7%) | 13 (2.8%) | 108 (8.0%) | <0.0001 |
| At 30 days | 123 (6.8%) | 14 (3.0%) | 109 (8.1%) | <0.0001 |
| At 1 year | 157 (8.6%) | 16 (3.4%) | 141 (10.4%) | <0.0001 |
| Time to death or censored, median with IQR (days) | 709 (335–1083) | 661 (241–1082) | 727 (365–1090) | 0.277 |
| Length of hospitalisation, median with IQR (days) | 4 (2–6) | 4 (3–5) | 5 (3–7) | <0.0001 |
| 30-day readmission (days) | 423 (23.3%) | 82 (17.6%) | 341 (25.2%) | 0.001 |
| LVEF post-STEMI, mean±SD (%) | 48.2±11.4 | 49.5±10.7 | 47.8±11.6 | 0.007 |
| Complications | ||||
| Acute pulmonary oedema | 191 (10.5%) | 24 (5.2%) | 167 (12.3) | <0.0001 |
| Cardiogenic shock | 211 (11.6%) | 33 (7.1%) | 178 (13.2) | <0.0001 |
| Endotracheal intubation | 218 (12%) | 31 (6.7%) | 187 (13.8) | <0.0001 |
| Stroke | 0.746 | |||
| Ischaemic | 20 (1.1%) | 4 (0.9%) | 16 (1.2%) | |
| Haemorrhagic | 6 (0.3%) | 1 (0.2%) | 5 (0.4%) | |
| Bleeding | 174 (9.6%) | 22 (4.7%) | 152 (11.2%) | <0.0001 |
| Acute kidney injury | <0.0001 | |||
| Requiring RRT | 37 (2.0%) | 5 (1.1%) | 32 (2.4%) | |
| Not requiring RRT | 172 (9.5%) | 23 (4.9%) | 149 (11.0%) | |
| Atrial fibrillation | 117 (6.4%) | 7 (1.5%) | 110 (8.1%) | <0.0001 |
| Ventricular tachycardia | 0.005 | |||
| Sustained | 78 (4.3%) | 14 (3%) | 64 (4.7%) | |
| Non-sustained | 139 (7.6%) | 50 (10.8%) | 89 (6.6%) | |
| Ventricular fibrillation | 143 (7.9%) | 30 (6.5%) | 113 (8.4%) | 0.189 |
LVEF, left ventricular ejection fraction; PPCI, primary percutaneous coronary intervention; RRT, renal replacement therapy; STEMI, ST segment elevation myocardial infarction.