A Novel Clinical Scoring Model for Interventional Therapy in Chronic Total Occlusion of the Coronary Artery

Table 4

Angiographic features of the study population.

Angiographic features	(N = 144)
CTO target vessel
LAD	61 (42.4%)
LCX	14 (9.7%)
RCA	68(47.2%)
LM	1 (0.7%)
Superior vessels
Right coronary dominance	89 (68.5%)
Left coronary dominance	16 (12.3%)
Balanced type	25 (19.2%)
Collateral circulation, Rentrop＜2	46 (31.9%)
Blunt occlusion	83 (57.6%)
Calcification	48 (33.3%)
Curvature	131 (91.0%)
Occlusion length ≥20 mm	127 (88.2%)
Distal occlusion	78 (54.2%)
Initial occlusion	69 (47.9%)
In-stent occlusion	20 (13.9%)
J-CTO score	3.10 ± 0.96
PROGRESS-CTO score	1.32 ± 0.95
ORA score	1.31 ± 1.09
Recharge score	3.24 ± 1.02
Operator-CTO score	1.78 ± 1.46