Research Article
Coronary Angiography Characteristics of Symptomatic Patients with Prior Coronary Artery Bypass Graft: A Descriptive Study
Table 4
CAG characteristics of ischemic territory and relevant native coronary arteries in symptomatic patients with prior CABG (n = 993).
| | Variables | MT | PCI | value | | n = 351 | n = 642 |
| | Ischemic territory | | | 0.001 | | One territory | 186 (53.0%) | 260 (40.5%) | 0.658 | | LAD | 52 (28.0%) | 73 (28.1%) | | | LCX | 66 (35.5%) | 81 (31.2%) | | | RCA | 68 (36.5%) | 106 (40.8%) | | | Two territories | 134 (38.2%) | 290 (45.2%) | 0.378 | | LAD + LCX | 22 (16.4%) | 64 (22.1%) | | | LAD + RCA | 22 (16.4%) | 44 (15.2%) | | | LCX + RCA | 90 (67.2%) | 182 (62.8%) | | | Three territories | 31 (8.8%) | 92 (14.3%) | NS | | LAD + LCX + RCA | 31 (100.0%) | 92 (100.0%) | | | Classification of CADψ | | | | | Type A | 0 (0.0%) | 244 (38.0%) | | | Type B | 68 (19.4%) | 9 (1.4%) | | | Type C | 283 (80.6%) | 389 (60.6%) | | | Lesion characteristics | | | | | CTO | 192 (54.7%) | 321 (50.0%) | 0.163 | | Diffuse lesions | 173 (49.3%) | 96 (15.0%) | | | Branches involved | 97 (27.6%) | 201 (31.3%) | 0.247 | | Opening involved | 97 (27.6%) | 195 (30.4%) | 0.383 |
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CABG = coronary artery bypass graft; CAD = coronary artery disease; CAG = coronary angiography; CTO = chronic total occlusion; LAD = left anterior descending artery; LCX = left anterior descending artery; MT = medical therapy; NS = not significant; RCA = right coronary artery; ψ = ACC/AHA Classification of CAD.
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