| | | 110 patients |
| | Left main complex, n (%) | 3 (2.7%) | | Left anterior descending, n (%) | 29 (26.4%) | | Left circumflex, n (%) | 30 (27.3%) | | Right coronary artery, n (%) | 45 (40.9%) | | Other vessels, n (%) | 5 (4.5%) | | In-stent restenosis, n (%) | 9 (8.2%) | | Type B2/C lesion, n (%) | 107 (97.3%) | | Eccentric lesion, n (%) | 85 (77.3%) | | Diffuse lesion, n (%) | 96 (87.3%) | | Lesion angulation ≧ moderate, n (%) | 17 (15.5%) | | Proximal tortuosity ≧ excessive, n (%) | 67 (8.7%) | | Calcified lesion, n (%) | 54 (49.1%) | | Thrombus laden, n (%) | 2 (1.8%) | | Bifurcation, n (%) | 41 (37.3%) | | Ostial lesion, n (%) | 6 (5.5%) | | Chronic total occlusion, n (%) | 49 (44.5%) |
| | Sheath size | | 6-french, n (%) | 52 (47.3%) | | 7-french, n (%) | 24 (21.8%) | | 8-french, n (%) | 34 (30.9%) |
| | Approach site | | Femoral, n (%) | 71 (64.5%) | | Radial, n (%) | 38 (34.5%) | | Brachial, n (%) | 1 (0.9%) | | Imaging device, n (%) | 24 (21.8% | | IVUS, n (%) | 104 (94.5%) | | OCT, n (%) | 1 (0.9%) | | Debulking device, n (%) | 4 (0.5%) | | Directional coronary atherectomy, n (%) | 0 (0%) | | Rotational atherectomy, n (%) | 24 (21.8%) | | Excimer laser coronary atherectomy, n (%) | 0 (0%) |
| | Perforation classification | | Type I, n (%) | 5 (4.5%) | | Type II, n (%) | 28 (25.5%) | | Type III, n (%) | 12 (10.9%) | | Type IV, n (%) | 2 (1.8%) | | Type V, n (%) | 63 (57.3%) |
| | Perforation site | | Main vessel distal, n (%) | 43 (39.1%) | | Main vessel middle, n (%) | 11 (10.0%) | | Branch vessel distal, n (%) | 23 (20.9%) | | Branch vessel middle, n (%) | 5 (4.5%) | | Septal collateral channel, n (%) | 8 (7.3%) | | Nonseptal collateral channel, n (%) | 20 (18.2%) |
| | Cause of perforation | | Guidewire, n (%) | 97 (88.2%) | | Balloon, n (%) | 1 (0.9%) | | IVUS, n (%) | 0 (0%) | | Stent, n (%) | 0 (0%) | | Microcatheter, n (%) | 4 (3.6%) | | Directional coronary atherectomy, n (%) | 0 (0%) | | Rotational atherectomy, n (%) | 7 (6.4%) | | Excimer laser coronary atherectomy, n (%) | 0 (0%) | | Reference diameter of perforated vessel (mm) | 0.91 ± 0.34 | | Covered stent, n (%) | 3 (2.7%) | | Protamine sulfate, n (%) | 61 (55.5%) | | Cardiac tamponade, n (%) | 7 (6.4%) | | Pericardiocentesis, n (%) | 7 (6.4%) | | Surgical repair, n (%) | 0 (0%) | | Intra-aortic balloon pumping, n (%) | 1 (0.9%) | | Extracorporeal membrane oxygenation, n (%) | 1 (0.9%) | | Impella, n (%) | 0 (0%) | | The number of microcoils, n | 4.52 ± 4.13 | | Coiling success, n (%) | 108 (98.2%) |
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