Table 2.
PCI Characteristics
| Total cohort, n (%) | Noncomplex PCI, n (%) | Complex PCI, n (%) | ||
|---|---|---|---|---|
| N=504 | N=285 | N=219 | P value | |
| Indication | 0.47 | |||
| Symptomatic control | 335 (66.1) | 188 (65.7) | 147 (66.5) | |
| Asymptomatic, noninvasive Findings | 15 (3.0) | 9 (3.1) | 6 (2.7) | |
| Asymptomatic, before surgery | 1 (0.2) | 1 (0.4) | 0 (0.0) | |
| Before valvular intervention | 108 (21.3) | 66 (23.1) | 42 (19.0) | |
| Heart failure | 29 (5.7) | 12 (4.2) | 17 (7.7) | |
| Recent acute coronary syndrome | 19 (3.7) | 10 (3.5) | 9 (4.1) | |
| Complex PCI breakdown | ||||
| Unprotected left main | 18 (3.5) | … | 18 (8.0) | |
| Multivessel intervention | 71 (13.8) | … | 71 (31.6) | |
| Bifurcation intervention | 59 (11.5) | … | 59 (26.2) | |
| Saphenous vein graft intervention | 35 (6.8) | … | 35 (15.1) | |
| Atherectomy performed | 42 (8.2) | … | 42 (18.7) | |
| Severely calcified lesion | 101 (19.7) | … | 101 (44.9) | |
| Chronic total occlusion | 38 (7.4) | … | 38 (16.9) | |
| Declined for CABG | 5 (1.0) | … | 5 (2.2) | |
| Vessels | ||||
| Protected left main | 15 (2.9) | 5 (1.7) | 10 (4.4) | 0.12 |
| Ramus intermedius | 9 (1.8) | 4 (1.4) | 5 (2.2) | 0.71 |
| Left anterior descending | 253 (49.3) | 128 (44.4) | 125 (55.6) | 0.02 |
| Proximal left anterior descending | 135 (26.3) | 58 (20.1) | 77 (34.2) | <0.001 |
| Diagonal branch | 57 (11.1) | 19 (6.6) | 38 (16.9) | <0.001 |
| Left circumflex | 106 (20.6) | 48 (16.7) | 58 (25.8) | 0.02 |
| Obtuse marginal branch | 53 (10.3) | 25 (8.7) | 28 (12.4) | 0.21 |
| Right coronary | 156 (30.4) | 88 (30.6) | 68 (30.2) | 1.00 |
| Posterior descending | 15 (2.9) | 8 (2.8) | 7 (3.1) | 1.00 |
| Posterolateral | 6 (1.2) | 4 (1.4) | 2 (0.9) | 0.91 |
| Left internal mammary artery graft | 2 (0.4) | 2 (0.7) | 0 (0.0) | 0.59 |
| PCI strategies | ||||
| Fractional flow reserve | 0.04 | |||
| Yes | 77 (15.0) | 52 (18.1) | 25 (11.1) | |
| Any intravascular imaging | <0.001 | |||
| Yes | 125 (24.4) | 47 (16.3) | 78 (34.7) | |
| Brachytherapy | 0.23 | |||
| Yes | 7 (1.4) | 6 (2.1) | 1 (0.4) | |
| Periprocedural medications | ||||
| Bivalirudin | 0.06 | |||
| Yes | 31 (6.0) | 23 (8.0) | 8 (3.6) | |
| Glycoprotein IIb/IIIa Inhibitor | 0.31 | |||
| Yes | 13 (2.5) | 5 (1.7) | 8 (3.6) | |
| Vascular access | 0.06 | |||
| Radial artery | 323 (63.0) | 197 (68.4) | 126 (56.0) | |
| Femoral artery | 190 (37.0) | 91 (31.6) | 99 (44.0) | |
| Operator and hospital site | ||||
| High‐volume complex PCI operator | <0.001 | |||
| Yes | 150 (29.2) | 63 (21.9) | 87 (38.7) | |
| Hospital network site | 0.01 | |||
| Site 1 | 348 (67.8) | 186 (64.6) | 162 (72.0) | |
| Site 2 | 156 (30.4) | 93 (32.3) | 63 (28.0) | |
| Site 3 | 9 (1.8) | 9 (3.1) | 0 (0.0) | |
CABG indicates coronary artery bypass graft; and PCI, percutaneous coronary intervention.