Table 2.
PCI characteristics by operator volume
| Overall (n = 3,747,866 PCIs; 10,496 operators) | Low (< 50 PCIs/year) (n = 371,861 PCIs; 4628 operators) | Intermediate (50–100 PCIs/year) (n = 1,037,092 PCIs; 3001 operators) | High (> 100 PCIs/year) (n = 2,338,913 PCIs; 2867 operators) | P value | |
|---|---|---|---|---|---|
| Lesion segment | < 0.0001 | ||||
| Left main | 70,090 (1.9%) | 4532 (1.2%) | 16,187 (1.6%) | 49,371 (2.1%) | |
| Proximal LAD | 571,396 (15.3%) | 61,971 (16.7%) | 161,407 (15.6%) | 348.018 (14.9%) | |
| pRCA/mLAD/pLCx | 1,274,902 (34.0%) | 127,830 (34.4%) | 354,833 (34.2%) | 792,239 (33.9%) | |
| Other | 1,817,196 (48.5%) | 175,825 (47.3%) | 500,460 (48.3%) | 1,140,911 (48.8%) | |
| Vein graft lesion | 217,461 (5.8%) | 20,193 (5.4%) | 58,594 (5.7%) | 138,674 (5.9%) | < 0.0001 |
| Chronic total occlusion | 109,152 (16.1%) | 10,847 (14.0%) | 28,556 (14.0%) | 69,749 (17.5%) | < 0.0001 |
| Bifurcation lesion | 425,147 (11.3%) | 38,418 (10.3%) | 116,355 (11.2%) | 270,374 (11.6%) | < 0.0001 |
| Lesion length | 16 (12, 24) | 15 (12, 22) | 16 (12, 23) | 16 (12, 24) | < 0.0001 |
| No. lesions attempted in lab visit | < 0.0001 | ||||
| 1 | 2,723,589 (72.7%) | 288,132 (77.5%) | 776,634 (74.9%) | 1,658.823 (70.9%) | |
| 2 | 806,242 (21.5%) | 68,936 (18.5%) | 210,064 (20.3%) | 527,242 (22.5%) | |
| ≥ 3 | 218,035 (5.8%) | 14,793 (4.0%) | 50,394 (4.9%) | 152,848 (6.5%) | |
| Radial access | 567,640 (15.2%) | 28.160 (7.6%) | 135,104 (13.0%) | 404,376 (17.3%) | < 0.0001 |
| Unfractionated heparin | 2,018,063 (53.9%) | 182,344 (49.1%) | 552,397 (53.3%) | 1,283,322 (54.9%) | < 0.0001 |
| Bivalirudin | 2,193,047 (58.5%) | 226,004 (60.8%) | 616,715 (59.5%) | 1,350,328 (57.8%) | < 0.0001 |
| Glycoprotein IIb/IIIa inhibitor | 893,655 (23.9%) | 101,085 (27.2%) | 282,809 (27.3%) | 509,761 (21.8%) | < 0.0001 |
| Drug eluting stent | 2,755,004 (73.5%) | 266,382 (71.6%) | 740,889 (71.4%) | 1,747,733 (74.7%) | < 0.0001 |
| Fluoroscopy time (minutes) | 11.7 (7.5, 18.6) | 12.3 (8.0, 19.4) | 12.3 (8.0, 19.3) | 11.3 (7.2, 18.1) | < 0.0001 |
| Contrast volume (mL) | 179 (130, 235) | 185 (140, 245) | 180 (140, 240) | 175 (125, 230) | < 0.0001 |
| Successful PCI | 3,500,956 (93.8%) | 342,741 (92.6%) | 962,923 (93.3%) | 2,195,292 (94.2%) | < 0.0001 |
Continuous data presented as median (25th percentile, 75th percentile); categorical data presented as count (percent). LAD, left anterior descending coronary artery; pRCA, proximal right coronary artery; mLAD, mid left anterior descending coronary artery; pLCA, proximal left circumflex artery. Successful PCI defined as dilation of all lesions attempted.