Variable | Cohort A (n=24) | Cohort B (n=44) | P value |
Lesion complexity (ACC/AHA) | |||
Type A, n (%) | 0 | 0 | N/A |
Type B1, n (%) | 3 (13) | 11 (25) | 0.223 |
Type B2, n (%) | 7 (29) | 3 (7) | 0.013 |
Type C, n (%) | 14 (58) | 30 (68) | 0.417 |
CTO attempted, n (%) | 4 (17) | 12 (27) | 0.324 |
In-stent restenoses, n (%) | 0 | 8 (18) | 0.026 |
IVUS, n (%) | 4 (17) | 8 (18) | 0.876 |
Rotablation, n (%) | 1 (4) | 4 (9) | 0.457 |
Cutting balloon angioplasty, n (%) | 1 (4) | 2 (5) | 0.942 |
Hydrophilic wires, n (%) | 9 (38) | 15 (34) | 0.779 |
Multivessel stenting, n (%) | 5 (21) | 13 (30) | 0.436 |
GpIIb/IIIa inhibitors, n (%) | 7 (29) | 7 (16) | 0.196 |
Type of coronary perforation | |||
Type I, n (%) | 1 (4) | 2 (5) | 0.942 |
Type II, n (%) | 4 (17) | 5 (11) | 0.537 |
Type III, n (%) | 11 (46) | 19 (43) | 0.833 |
Type IV, n (%) | 0 (0) | 0 (0) | N/A |
Type V, n (%) | 8 (33) | 18 (41) | 0.539 |
Target lesion | |||
LAD, n (%) | 8 (33) | 18 (41) | 0.539 |
RCA, n (%) | 9 (38) | 9 (20) | 0.128 |
Cx, n (%) | 3 (13) | 4 (9) | 0.658 |
Diagonal, n (%) | 1 (4) | 8 (18) | 0.103 |
Septal, n (%) | 1 (4) | 2 (5) | 0.942 |
Intermediate, n (%) | 0 | 2 (5) | N/A |
LMS, n (%) | 1 (4) | 1 (2) | 0.659 |
SVG, n (%) | 1 (4) | 0 | N/A |
ACC/AHA, American College of Cardiology/American Heart Association; CTO, chronic total occlusion; Cx, circumflex artery; GpIIb/IIIa, glycoprotein IIb/IIIa; IVUS, intravascular ultrasound; LAD, left anterior descending; LMS, left main stem; N/A, not applicable; RCA, right coronary artery; SVG, saphenous vein graft.