Lesion characteristics and procedural details of octogenarians compared with non-octogenarians in the Thai PCI registry (n=22 741)
| Characteristic | Octogenarian (age ≥80) | Non-octogenarian (age 18–79) | P value |
| N (%) | N (%) | ||
| Coronary lesion characteristic* | |||
| A | 82 (3.9) | 886 (4.3) | 0.226 |
| B1 | 319 (15.3) | 3030 (14.8) | |
| B2 | 538 (17.1) | 3828 (18.6) | |
| C | 1331 (63.7) | 12 782 (62.3) | |
| Ostial lesion | 352 (13.5) | 2842 (11.1) | 0.001 |
| Bifurcation lesion | 334 (12.8) | 3535 (13.9) | 0.086 |
| Previously treated lesion | 146 (5.6) | 1621 (6.3) | 0.221 |
| Need for IABP | 121 (5.8) | 651 (3.2) | <0.001 |
| Temporary pacemaker insertion during PCI | 39 (1.9) | 203 (1.0) | <0.001 |
| Initial access site | |||
| Radial artery | 714 (34.0) | 9348 (45.3) | <0.001 |
| Brachial artery | 5 (0.2) | 42 (0.2) | |
| Femoral artery | 1345 (64.1) | 10 854 (52.6) | |
| Combination approach | 35 (1.7) | 398 (1.9) | |
| Imaging-guided PCI | |||
| IVUS-guided PCI | 334 (12.8) | 3597 (14) | 0.086 |
| OCT-guided PCI | 12 (0.5) | 257 (1.0) | 0.053 |
| Physiologic-guided PCI | 31 (1.2) | 475 (1.9) | 0.074 |
| PCI techniques | |||
| Balloon angioplasty | 234 (9) | 2056 (8) | 0.079 |
| DES | 2308 (88.6) | 22 906 (89.3) | 0.347 |
| BMS | 5 (0.2) | 26 (0.1) | 0.468 |
| Plaque modification | 185 (7.1) | 1141 (4.5) | <0.001 |
| Rotational atherectomy | 96 (3.7) | 460 (1.8) | <0.001 |
| Cutting balloon angioplasty | 20 (0.8) | 177 (0.7) | 0.646 |
| Laser angioplasty | 0 (0.0) | 17 (0.1) | 0.204 |
| Aspiration thrombectomy | 161 (6.2) | 1823 (7.1) | 0.076 |
| Ancillary medications | |||
| Aspirin | 2075 (98.9) | 20 483 (99.2) | 0.072 |
| P2Y12 inhibitors | |||
| Clopidogrel | 1965 (93.8) | 19 018 (92.3) | 0.014 |
| Ticagrelor | 164 (8.0) | 1849 (9.1) | 0.081 |
| Prasugrel | 8 (0.4) | 382 (1.9) | <0.001 |
| GP IIb/IIIa inhibitor | 141 (6.9) | 1250 (6.3) | 0.248 |
*Modified ACC/AHA lesion-specific classification of the primary target stenosis.
ACC/AHA, American College of Cardiology /American Heart Association; BMS, bare-metal stent; DES, drug-eluting stent; IABP, intra-aortic balloon pump; IVUS, intravascular ultrasound; OCT, optical coherence tomography; PCI, percutaneous coronary intervention.