Table 2

Native Coronary Artery CTO Prevalence and Distribution on the Preoperative Angiogram and at 1 Year

Pre-operative angiogram
 Total no. of patients with ≥1 CTO240 (61.9)
 Total of CTO vessels305
 LAD73 (18.8)
 LCX76 (19.5)
 RCA156 (40)
1-year angiogram
 Patients with ≥1 new CTO169 (43.6)
 Patients with 1 new CTO133 (34.3)
 Patients with 2 new CTOs29 (7.5)
 Patients with 3 new CTOs7 (1.8)
New CTO in native coronary vessels212
 LAD58 (27.4)
 LCX72 (34.0)
 RCA82 (38.6)
Total CTO in native coronary vessels
 LAD131 (33.8)
 LCX148 (38.1)
 RCA238 (61.35)

Values are n (%).

CTO = chronic total occlusion; LAD = left anterior descending artery; LCX = left circumflex artery; RCA = right coronary artery.