[Coronary intervention in 1148 patients with chronic total coronary occlusion].
OBJECTIVE
To assess the technique and outcomes of coronary intervention treatment for patients with chronic total occlusion (CTO) lesions.


METHODS
Retrospectively analyzed the data from 1148 patients with CTO who were treated by percutaneous coronary intervention (PCI) between June 1993 and December 2004. There were 1494 CTO lesions in 1458 vessels with a mean occlusion time of (49.1 +/- 31.6) months. A total of 1499 stents were implanted to those target lesions.


RESULTS
Total success rates of patients and lesions were 90.2% (1036/1148) and 88.2% (1317/1494), respectively. The success rate of PCI was declined in CTO lesions with long occlusion time, stump missing, bridging collaterals and >or= 15 mm in length (P < 0.05). Operative failures were occurred in 112 patients. Guide wire and balloon failed to pass through the occlusion accounted for 82.1% and 17.9% of all failures respectively. No death was occurred during operation, but 2 patients suffered from acute stent thrombosis and other 9 patients suffered from acute or later pericardium perforation. After procedure, there were 3 patients died and 3 patients suffered from subacute stent thrombosis during in-hospital period. The total in-hospital major adverse cardiac events rate was 0.6% (7/1148). The angina-free survival rate was 87.1% at discharge.


CONCLUSIONS
In an experienced heart center, it is possible to obtain a relatively high success rate of PCI and ideal clinical outcomes in patients with CTO coronary lesions.
Han
Ya-ling
YL
Department of Cardiology, Shenyang General Hospital, Cardiovascular Research Institute of PLA, Shenyang 110016, China. hanyal@mail.sy.ln.cn
Zhang
Jian
J
Jing
Quan-min
QM
Wang
Shou-li
SL
Ma
Ying-yan
YY
Luan
Bo
B
Li
Yi
Y
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015906:Angioplasty, Balloon, Coronary; D002908:Chronic Disease; D054059:Coronary Occlusion / Q000628:therapy*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015607:Stents; D016896:Treatment Outcome