Table 2.
Coronary angiographic findings and percutaneous interventional therapies.
| Before PSM | After PSM | |||||
|---|---|---|---|---|---|---|
| LMCA | Non-LMCA | p value | LMCA | Non-LMCA | p value | |
| (n = 155) | (n = 6274) | (n = 150) | (n = 150) | |||
| SYNTAX score | ||||||
| Before procedure | 20.11 ± 9.98 | 11.34 ± 7.83 | <0.001 | 19.85 ± 9.89 | 19.89 ± 9.88 | 0.970 |
| After procedure | 2.91 ± 5.29 | 3.32 ± 5.67 | 0.368 | 2.80 ± 5.28 | 4.49 ± 6.72 | 0.016 |
| Unprotected LMCA | 147 (94.8) | — | — | 142 (94.7) | — | — |
| Trivessel disease, % | 21 (13.5) | 107 (1.7) | <0.001 | 13 (8.7) | 0 (0) | <0.001 |
| Total occlusion, % | 33 (21.3) | 1350 (21.5) | 0.946 | 32 (21.3) | 64 (42.7) | <0.001 |
| Puncture site, % | ||||||
| Femoral artery | 20 (12.9) | 431 (6.9) | 0.014 | 20 (13.3) | 18 (12.0) | 0.558 |
| Radial artery | 132 (85.2) | 5749 (91.6) | 127 (84.7) | 131 (87.3) | ||
| Other approaches | 3 (1.9) | 94 (1.5) | 3 (2.0) | 1 (0.7) | ||
| Staged PCI, % | 53 (34.2) | 570 (9.1) | <0.001 | 53 (35.3) | 55 (36.7) | 0.810 |
| IVUS usage, % | 71 (45.8) | 261 (4.2) | <0.001 | 71 (47.3) | 71 (47.3) | 1.000 |
| IABP usage, % | 18 (11.6) | 81 (1.3) | <0.001 | 18 (12.0) | 18 (12.0) | 1.000 |
| Successful PCI, % | 152 (98.1) | 6166 (98.3) | 0.751 | 148 (98.7) | 148 (98.7) | 1.000 |
| PTCA only, % | 60 (38.7) | 1024 (17.1) | <0.001 | 60 (40.0) | 59 (39.3) | |
| Stent type | ||||||
| BMS, % | 0 (0) | 46 (0.8) | 0.285 | 0 (0) | 1 (0.7) | 1.000 |
| DES, % | ||||||
| 1G-DES | 17 (11.0) | 1150 (19.2) | 0.019 | 16 (10.7) | 13 (8.7) | 0.558 |
| 2G-DES | 59 (38.1) | 2706 (45.1) | 0.208 | 57 (38.0) | 53 (35.3) | 0.632 |
| BP-DES | 19 (12.3) | 957 (16.0) | 0.305 | 23 (15.3) | 17 (11.3) | 0.308 |
| Others | 0 (0) | 88 (1.5) | 0.277 | 0 (0) | 1 (0.7) | 1.000 |
| Blended multiple DESs | 0 (0) | 28 (0.5) | 1.000 | 0 (0) | 0 (0) | 1.000 |
Values are mean ± SD or n (%). SYNTAX = SYNergy between percutaneous coronary intervention with TAXus and cardiac surgery; LMCA = left main coronary artery; PCI = percutaneous coronary intervention; IVUS = intravascular ultrasound; IABP = intraaortic balloon pump; PTCA = percutaneous transluminal coronary angioplasty; BMS = bare metal stent; DES = drug-eluting stent; 1G = first generation; 2G = second generation; BP = biodegradable polymer.