Clinical and angiographic characteristics
| Intention to treat | Actual treatment | |||
|---|---|---|---|---|
| Stent (n = 849) | Balloon (n = 834) | Stent (n = 785) | Balloon (n = 763) | |
| Data are mean (SD) or number (%). | ||||
| *p<0.001. | ||||
| CABG, coronary artery bypass graft; LAD, left anterior descending coronary artery; LM, left main; MBG, myocardial blush grade; PCI, percutaneous coronary intervention; RCA, right coronary artery; RD, reference diameter; TIMI, thrombolysis in myocardial infarction. | ||||
| Age (years) | 62 (12) | 61 (11) | 61 (11) | 60 (11) |
| Men | 76.4% | 77.8% | 76.9% | 77.5% |
| Hypertension | 27.7% | 27.9% | 27.4% | 27.5% |
| Diabetes | 11.1% | 10% | 10.7% | 10.0% |
| Hypercholesterolaemia | 18.7% | 22.2% | 19.2% | 22.5% |
| Smoking | 50.1% | 48.2% | 50.8% | 49.0% |
| Previous infarction | 11.2% | 11.0% | 10.8% | 10.2% |
| Previous PCI/CABG | 6.5% | 6.0% | 6.6% | 5.4% |
| Ischaemia time (min) | 275 (222) | 264 (226) | 274 (222) | 265 (226) |
| Killip class 3–4 | 4.9% | 3.5% | 4.2% | 3.0% |
| Anterior infarction | 50.2% | 48.6% | 49.3% | 48.6% |
| Infarct related artery | ||||
| LAD | 47.6% | 47.0% | 47.1% | 47.4% |
| Circumflex | 13.1% | 15.0% | 12.6% | 14.9% |
| RCA | 36.9% | 35.3% | 38.5% | 36.0% |
| LM or graft | 2.4% | 2.7% | 1.8% | 2.1% |
| Lesion location | ||||
| Proximal | 28.8% | 27.4% | 32.3% | 30.7% |
| Middle | 30.6% | 32.6% | 35.1% | 37.2% |
| Distal | 40.6% | 40.0% | 32.6% | 32.1% |
| Multivessel disease | 53.9% | 54.3% | 52.5% | 53.5% |
| TIMI 0–1 before surgery | 65.7% | 69.1% | 69.0% | 72.9% |
| Collateral Rentrop 2–3 | 10.7% | 8.3% | 11.3% | 8.7% |
| Angioplasty performed | 92.5% | 91.5% | 100% | 100% |
| Crossover | 12.8% | 25.7%* | 13.9% | 28.0%* |
| TIMI 3 post-surgery | 87.8% | 87.8% | 87.8% | 87.8% |
| MBG 2–3 | 80.5% | 79.8% | 80.5% | 79.8% |
| Distal embolisation | 14.3% | 17.9% | 14.3% | 15.6% |
| Angiographic success | 87.1% | 86.5% | 87.1% | 86.5% |
| RD (mm) | 2.99 (0.54) | 2.95 (0.57) | 2.99 (0.53) | 2.94 (0.57) |