Retrograde percutaneous recanalization of chronic total occlusion of the coronary arteries via epicardial coronary collateral artery in 5 patients
10.3760/cma.j.issn.0253-3758.2010.09.008
- VernacularTitle:经心外膜下侧支循环逆向介入治疗冠状动脉慢性完全闭塞病变
- Author:
Bin ZHANG
1
;
Hong-Tao LIAO
;
Li-Jun JIN
;
Hong YAN
;
Tai-Ming DONG
;
Han-Dong WU
;
Hui-Min YU
;
Ren-Jie CHAI
Author Information
1. 广东省人民医院
- Keywords:
Coronary disease;
Arteriosclerosis obliterans;
Angioplasty,transluminal,percutaneous coronary
- From:
Chinese Journal of Cardiology
2010;38(9):794-797
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the feasibility of percutaneous recanalization by retrograde approach via epicardial collaterals. Methods Retrograde percutaneous coronary intervention (PCI) via epicardial collaterals was performed in 5 patients with previously failed antegrade PCI from April 2009 to November 2009. 7 F guiding catheters were engaged in donor artery. Hydrophilic wires and microcathethers were crossed to the distal ends of chronic total occlusion (CTO) lesions via epicardial collaterals. Four retrograde wires were exchanged into stiffer wires and further crossed the CTO, eventually went into the 6 F antegrade guiding catheters and were jailed by a 2.5 mm balloon. After dilatations of retrograde balloons, the lesions were crossed by antegrade wires, and finalized by conventional PCI method. One case was recanalized with retrograde wire trapping technique and another case was recanalized by reverse CART technique. Results The epicardial collaterals were reached from left anterior descending branch (LAD) to distal right coronary artery( RCA ) via apex in 3 patients, from left circumflex branch via left atrium branch to posterior descending artery and RCA in 1 patient and from obtuse marginal artery to diagonal artery and LAD in 1 patient. CTO was successfully recanalized and stents were implanted in 4 patients and failed in 1 patient despite successful wire positioning to the distal end of CTO. There was no procedure-induced cardiovascular event in all cases. Conclusions Epicardial collaterals may not be used as a routine route in retrograde approach PCI due to the potential risk of myocardial rupture and pericardial tamponade. In some cases with unavailable or unsuitable septal collaterals, epicardial collaterals may be used as an alternative route for CTO recanalization.
