Procedural characteristics of patients with STEMI treated with PPCI
| Procedural characteristics | Total (n=1818) | Age <50 (n=465) | Age ≥50 (n=1353) | P value |
| Culprit vessel | 0.025 | |||
| Left main | 28 (1.5%) | 6 (1.3%) | 22 (1.6%) | |
| Left anterior descending | 848 (46.6%) | 237 (51%) | 611 (45.2%) | |
| Left circumflex | 215 (11.8%) | 63 (13.5%) | 152 (11.2%) | |
| Right coronary | 708 (38.9%) | 157 (33.8%) | 551 (40.7%) | |
| Ramus intermedius | 7 (0.4%) | 2 (0.4%) | 5 (0.4%) | |
| Bypass graft | 12 (0.7%) | 0 (0%) | 12 (0.9%) | |
| Number of vessel disease | <0.0001 | |||
| 1-vessel disease | 1123 (61.8%) | 321 (69.0%) | 802 (59.3%) | |
| 2-vessel disease | 520 (28.6%) | 118 (25.4%) | 402 (29.7%) | |
| 3-vessel disease | 175 (9.6%) | 26 (5.6%) | 149 (11.0%) | |
| Any left main >50% | 73 (4.0%) | 18 (3.9%) | 55 (4.1%) | 0.854 |
| Multivessel disease | 695 (38.2%) | 144 (31.0%) | 551 (40.7%) | <0.0001 |
| DTBT, median with IQR (minutes) | 56 (36–77) | 56 (37–76) | 56 (36–77) | 0.608 |
| DTBT ≥90 min | 387 (21.3%) | 95 (20.4%) | 292 (21.6%) | 0.601 |
| Procedural success | 1794 (98.7%) | 462 (99.4%) | 1332 (98.4%) | 0.139 |
| Use of IABP | 154 (8.5%) | 23 (4.9%) | 131 (9.7%) | 0.01 |
| CABG done | 35 (1.9%) | 3 (0.6%) | 32 (2.4%) | 0.02 |
CABG, coronary artery bypass graft surgery; DTBT, door to balloon time; IABP, intra-aortic balloon pump; PPCI, primary percutaneous coronary intervention; STEMI, ST segment elevation myocardial infarction.