Table 2.
 Angiographic and procedural characteristics in patients with ST segment elevation myocardial infarction with preserved left ventricular systolic function according to treatment at discharge. Figures are numbers (percentage) of patients unless stated otherwise
| Variables | ARB (n=1185) | ACEI (n=4564) | No RAS (n=949) | P value | |
|---|---|---|---|---|---|
| ARB v ACEI | ARB v No RAS | ||||
| LAD infarct related artery | 651 (54.9) | 2325 (50.9) | 445 (46.9) | 0.01 | <0.001 |
| Multi-vessel coronary artery disease | 559 (47.2) | 2188 (47.9) | 469 (49.4) | 0.64 | 0.30 |
| ACC/AHA B2/C lesion | 881 (74.3) | 3652 (80.0) | 743 (78.3) | <0.001 | 0.03 |
| Pre-procedural TIMI flow grade 0 or 1 | 873 (73.7) | 3327 (72.9) | 704 (74.2) | 0.59 | 0.79 |
| Post-procedural TIMI flow grade 3 | 1112 (93.8) | 4284 (93.9) | 860 (90.6) | 0.97 | 0.005 |
| PCI with stent | 1105 (93.2) | 4306 (94.3) | 862 (90.8) | 0.15 | 0.04 |
| Mean (SD) maximal stent diameter (mm) | 3.20 (0.39) | 3.23 (0.41) | 3.20 (0.42) | 0.03 | 0.99 |
| Mean (SD) total stent length (mm) | 24.8 (5.9) | 24.7 (5.8) | 25.1 (6.3) | 0.58 | 0.16 |
| Vasopressor | 162 (13.7) | 668 (14.6) | 198 (20.9) | 0.40 | <0.001 |
| Intra-aortic balloon pump | 25 (2.1) | 120 (2.6) | 40 (4.2) | 0.31 | 0.005 |
| Defibrillator/cardioversion | 32 (2.7) | 157 (3.4) | 46 (4.8) | 0.20 | 0.009 |
| Temporary pacemaker | 56 (4.7) | 289 (6.3) | 70 (7.4) | 0.04 | 0.01 |
ARB=angiotensin receptor blocker; ACEI=angiotensin converting enzyme inhibitor; RAS=renin angiotension system; ACC/AHA=American College of Cardiology/American Heart Association; LAD=left anterior descending artery; PCI=percutaneous coronary intervention; TIMI=thrombolysis in myocardial infarction.