Reattempt Percutaneous Coronary Intervention of Chronic Total Occlusions after Prior Failures: A Single-Center Analysis of Strategies and Outcomes

Table 3

Strategies and differences between final successful and failed cases.

	Final successful reattempts (n = 172)	Final failed reattempts (n = 40)	value
Month of intervals	4.08 ± 5.26	3.85 ± 5.34	0.799
Technical success	172 (100)	0 (0.0)	–
Procedural success	169 (98.3)	0 (0.0)	–
CCTA preprocedure	45 (27.1)	3 (7.5)	<0.001
Dual injection	127 (73.8)	17 (42.5)	0.003
Procedural approach
Antegrade approach	88 (51.2)	15 (37.5)	0.119
Retrograde approach	16 (9.3)	4 (10.0)	0.892
Hybrid approach	68 (39.5)	21 (52.5)	0.135
Collaterals used in retrograde wiring
Septal	69 (40.1)	20 (50.0)	0.254
Epicardial	16 (9.3)	7 (17.5)	0.157
Bypass graft/ipsilateral	3 (1.7)	0 (0.0)	0.402
Tip injection	20 (11.6)	3 (7.5)	0.580
IVUS-guided wiring	74 (43.0)	8 (20.0)	0.007
R-CART	32 (18.6)	2 (5.0)	0.035
AGT	26 (15.1)	0 (0.0)	0.018
Rotational atherectomy	9 (5.2)	0 (0.0)	0.213
CrossBoss or Stingray	11 (6.4)	2 (5.0)	0.740

Values are mean ± SD or percentage. CCTA, coronary multispiral computed tomography angiography; IVUS, intravascular ultrasound; R-CART, reverse-controlled antegrade or retrograde subintimal tracking; AGT, active greeting technique.