Table 3. Angiographic and procedural characteristics.
| ACS |
SA |
|||||
| ≥ 75 yrs |
< 75 yrs |
P | ≥ 75 yrs |
< 75 yrs |
P | |
| n = 155 | n = 604 | n = 58 | n = 218 | |||
| Emergency PCI | 48 (31.0%) | 141 (23.3%) | 0.050 | - | - | - |
| Radial approach | 110 (71.0%) | 506 (83.8%) | < 0.01 | 46 (79.3%) | 189 (86.7%) | 0.160 |
| Drug-eluting stent u-se | 148 (95.5%) | 582 (96.4%) | 0.471 | 55 (94.8%) | 213 (97.7%) | 0.613 |
| Stent implantation | ||||||
| Diseased vessels | ||||||
| LAD | 149 (96.1%) | 555 (91.9%) | 0.069 | 249 (90.2%) | 196 (89.9%) | 0.738 |
| LCX | 105 (67.7%) | 356 (58.9%) | < 0.05 | 37 (63.8%) | 141 (64.7%) | 0.900 |
| RCA | 119 (76.8%) | 398 (65.9%) | < 0.05 | 177 (64.1%) | 141 (64.7%) | 0.713 |
| Multi-vessel disease | 132 (85.2%) | 446 (73.8%) | < 0.01 | 44 (75.9%) | 162 (74.3%) | 0.193 |
| Double vessel | 42 (27.1%) | 184 (30.5%) | 24 (41.4%) | 64 (29.4%) | ||
| Triple vessel | 90 (58.1%) | 262 (43.4%) | 20 (34.5%) | 98 (45.0%) | ||
| Left main lesion | 14 (9.0%) | 36 (6.0%) | 0.169 | 0 | 11 (5.0%) | 0.171 |
| Chronic total occlusion | 20 (12.9%) | 36 (6.0%) | < 0.01 | 1 (1.7%) | 13 (6.0%) | 0.332 |
| Myocardial bridge | 9 (5.8%) | 56 (9.3%) | 0.169 | 6 (10.3%) | 15 (6.9%) | 0.545 |
| Calcified lesion | 42 (27.1%) | 96 (15.9%) | < 0.01 | 15 (25.9%) | 45 (20.7%) | 0.401 |
| IABP use | 6 (3.9%) | 7 (1.2%) | < 0.05 | - | - | - |
ACS: acute coronary syndrome; CTO: chronic total occlusion; IABP: intra-aortic balloon pump; LAD: left anterior descending coronary artery; LCX: left circumflex coronary artery; PCI: percutaneous coronary intervention; RCA: right coronary artery; SA: stable angina.