Table 3.
percutaneous coronary intervention (PCI) characteristics of patients with acute coronary syndrome (ACS) during 2011–2014
| 2011 | 2012 | 2013 | 2014 | P values for trend | |||||
| n | % | n | % | n | % | n | % | ||
| Artery stenosis (%) | 39 090 | 42 260 | 46 915 | 46 938 | |||||
| 75–99 | 27 879 | 71.3 | 31 048 | 73.5 | 34 976 | 74.6 | 35 971 | 76.6 | <0.0001 |
| 100 | 7228 | 18.5 | 8642 | 20.4 | 9704 | 20.7 | 9385 | 20.0 | <0.0001 |
| 50–75 | 3557 | 9.1 | 2326 | 5.5 | 2003 | 4.3 | 1540 | 3.3 | <0.0001 |
| <50 | 426 | 1.1 | 244 | 0.6 | 232 | 0.5 | 42 | 0.1 | <0.0001 |
| Lesion category | 38 606 | 41 713 | 46 292 | 46 073 | |||||
| Long lesion* | 13 571 | 35.2 | 14 939 | 35.8 | 16 375 | 35.4 | 15 736 | 34.2 | <0.001 |
| General lesion | 12 686 | 32.9 | 13 036 | 31.3 | 14 874 | 32.1 | 15 878 | 34.5 | <0.0001 |
| Total occluded lesion | 4597 | 11.9 | 5532 | 13.3 | 6058 | 13.1 | 5930 | 12.9 | <0.001 |
| Calcified lesion | 3184 | 8.2 | 3006 | 7.2 | 3473 | 7.5 | 2781 | 6.0 | <0.0001 |
| Bifurcation lesion | 2545 | 6.6 | 2463 | 5.9 | 2479 | 5.4 | 2891 | 6.3 | <0.01 |
| Thrombus lesion | 1782 | 4.6 | 2469 | 5.9 | 2711 | 5.9 | 2549 | 5.5 | <0.0001 |
| Small vessel† | 217 | 0.6 | 246 | 0.6 | 277 | 0.6 | 272 | 0.6 | 0.59 |
| Bypass graft lesion | 24 | 0.1 | 22 | 0.1 | 45 | 0.1 | 36 | 0.1 | 0.12 |
| Lesion vessel‡ | 30 457 | 34 800 | 39 427 | 39 295 | |||||
| Triple | 12 298 | 40.4 | 12 803 | 36.8 | 13 253 | 33.6 | 12 301 | 31.3 | <0.0001 |
| Solitary | 8580 | 28.2 | 11 567 | 33.2 | 14 395 | 36.5 | 14 912 | 37.9 | <0.0001 |
| LAD | 5397 | 17.7 | 7090 | 20.4 | 8544 | 21.7 | 8599 | 21.9 | <0.0001 |
| RCA | 2147 | 7.0 | 3111 | 8.9 | 3866 | 9.8 | 4222 | 10.7 | <0.0001 |
| LCX | 1036 | 3.4 | 1366 | 3.9 | 1985 | 5.0 | 2038 | 5.2 | <0.0001 |
| Double | 7308 | 24.0 | 8104 | 23.3 | 9180 | 23.3 | 9374 | 23.9 | 0.84 |
| LAD+RCA | 3694 | 12.1 | 3936 | 11.3 | 4270 | 10.8 | 4285 | 10.9 | <0.0001 |
| LAD+LCX | 2558 | 8.4 | 2968 | 8.5 | 3475 | 8.8 | 3554 | 9.0 | <0.001 |
| LCX+RCA | 1056 | 3.5 | 1200 | 3.4 | 1435 | 3.6 | 1535 | 3.9 | <0.001 |
| Triple+LM | 1540 | 5.1 | 1481 | 4.3 | 1638 | 4.2 | 1644 | 4.2 | 0.0001 |
| Double+LM | 489 | 1.6 | 502 | 1.4 | 574 | 1.5 | 593 | 1.5 | 0.41 |
| LAD+LCX + LM | 230 | 0.8 | 247 | 0.7 | 339 | 0.9 | 315 | 0.8 | 0.16 |
| LAD+RCA + LM | 195 | 0.6 | 212 | 0.6 | 198 | 0.5 | 215 | 0.5 | <0.05 |
| LCX+RCA + LM | 64 | 0.2 | 43 | 0.1 | 37 | 0.1 | 63 | 0.2 | 0.09 |
| Solitary+LM | 178 | 0.6 | 253 | 0.7 | 300 | 0.8 | 367 | 0.9 | <0.0001 |
| LAD+LM | 139 | 0.5 | 197 | 0.6 | 220 | 0.6 | 281 | 0.7 | <0.0001 |
| RCA+LM | 26 | 0.1 | 37 | 0.1 | 51 | 0.1 | 49 | 0.1 | 0.09 |
| LCX+LM | 13 | 0.0 | 19 | 0.1 | 29 | 0.1 | 37 | 0.1 | <0.01 |
| LM | 64 | 0.2 | 90 | 0.3 | 107 | 0.3 | 128 | 0.3 | <0.01 |
| Target vessel‡ | 28 278 | 32 836 | 38 176 | 39 224 | |||||
| Solitary | 20 801 | 73.6 | 25 513 | 77.7 | 30 592 | 80.1 | 31 456 | 80.2 | <0.0001 |
| LAD | 10 735 | 38.0 | 13 277 | 40.4 | 15 749 | 41.3 | 15 960 | 40.7 | <0.0001 |
| LCX | 3017 | 10.7 | 3563 | 10.9 | 4665 | 12.2 | 4867 | 12.4 | <0.0001 |
| RCA | 7049 | 24.9 | 8673 | 26.4 | 10 178 | 26.7 | 10 629 | 27.1 | <0.0001 |
| Double | 5713 | 20.2 | 5685 | 17.3 | 5906 | 15.5 | 5886 | 15.0 | <0.0001 |
| LAD+LCX | 2723 | 9.6 | 2683 | 8.2 | 2865 | 7.5 | 2815 | 7.2 | <0.0001 |
| LAD+RCA | 1978 | 7.0 | 1937 | 5.9 | 1904 | 5.0 | 1932 | 4.9 | <0.0001 |
| LCX+RCA | 1012 | 3.6 | 1065 | 3.2 | 1137 | 3.0 | 1139 | 2.9 | <0.0001 |
| Solitary+LM | 566 | 2.0 | 603 | 1.8 | 690 | 1.8 | 923 | 2.4 | <0.001 |
| LAD+LM | 482 | 1.7 | 531 | 1.6 | 600 | 1.6 | 782 | 2.0 | <0.01 |
| LCX+LM | 68 | 0.2 | 58 | 0.2 | 71 | 0.2 | 123 | 0.3 | <0.05 |
| RCA+LM | 16 | 0.1 | 14 | 0.0 | 19 | 0.0 | 18 | 0.0 | 0.68 |
| Double+LM | 483 | 1.7 | 455 | 1.4 | 462 | 1.2 | 464 | 1.2 | <0.0001 |
| LAD+LCX + LM | 405 | 1.4 | 375 | 1.1 | 387 | 1.0 | 382 | 1.0 | <0.0001 |
| LAD+RCA + LM | 73 | 0.3 | 69 | 0.2 | 69 | 0.2 | 72 | 0.2 | <0.05 |
| LCX+RCA + LM | 5 | 0.0 | 11 | 0.0 | 6 | 0.0 | 10 | 0.0 | 0.92 |
| Triple | 568 | 2.0 | 433 | 1.3 | 354 | 0.9 | 298 | 0.8 | <0.0001 |
| LM | 97 | 0.3 | 113 | 0.3 | 153 | 0.4 | 173 | 0.4 | <0.05 |
| Triple+LM | 50 | 0.2 | 34 | 0.1 | 19 | 0.0 | 24 | 0.1 | <0.0001 |
*Denotes length of lesion >20 mm.
†Denotes vessel diameter <2.5 mm.
‡Include anomalous artery, intermediate artery and vessel graft.
LAD, left anterior descending artery; LCX, left circumflex artery; LM, left main artery; RCA, right coronary artery.