[The influence of coronary main vessel stenting on side branches].
OBJECTIVE
To evaluate the influence of stenting main vessel on side branches and to compare the different effects on side branches between BMS and DES (Taxus and Cypher).


METHODS
We reviewed the angiograms and the medical records of 183 patients who had received stent implantation in coronary main vessels and had follow-up angiograms. Any side branch was jailed by stent was evaluated.


RESULTS
Side branch occlusion occurred in 8.9% in all branches (10.5% in Cypher DES group, 11.1% in Taxus DES group and 7.8% in BMS group). Spontaneous recanalization of side branches was observed in 72% (90.9% in Cypher DES, 66.7% in Taxus stent group and 66.7% in BMS). The ostial side branch stenosis before stenting and the involvement of the side branch origin within the lesion of the parent vessel are the major independent predictors for side branch occlusion.


CONCLUSIONS
The influence of different DES implantations in coronary main vessels on side branches were similar and there was no difference between DES and BMS. Side branch occlusion had relatively benign clinical course. Most occluded side branches had late spontaneous reperfusion.
Jin
Qin-hua
QH
Cardiovascular Department, China PLA General Hospital, Beijing 100853, China.
Gai
Lu-yue
LY
Liu
Hong-bin
HB
Yang
Ting-shu
TS
Du
Luo-shan
LS
D000368:Aged; D015906:Angioplasty, Balloon, Coronary; D003331:Coronary Vessels; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000601:surgery*; D015607:Stents; D016896:Treatment Outcome