Stenosis of side branches after percutenous coronary stenting in bifurcation lesions
- VernacularTitle:冠状动脉分叉病变置入支架后分支狭窄率的变化
- Author:
Shan LI
;
Luyue GAI
- Publication Type:Journal Article
- Keywords:
Angioplasty,transluminal,percutaneous coronary;
Stents;
Coronary disease
- From:
Chinese Journal of Interventional Cardiology
1996;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To determine the related facuors of side branch occlusion after stent implantion in the main branch of biburcation lesions.Methods We retrospectively analyzed 121 bifurcation lesions in 92 patients who accepted percutaneous coronary interventional therapy in our hospital from 2005 September to 2006 January.We employed quantitive coronary angiography analysis after stenting in the main branch and then evaluated the factors related to side branch stenosis.Results After stenting in the main branch of bifurcation lesions,four factors were found to be involved in causing side branch stenosis,which included:the plaque burden of both branches,the angle of bifurcation and the diameter of the side branch.The plaque burden of both branches was positively correlated but the biburcation angle and the diameter of the side branch were correlated to the formation of side branch stenosis.The severity of side branch stenosis after PCI could be represented by the regression equation:Y=0.48A-11.4B-0.23C+0.22D(Y:the degree of side branch stenosis after main branch stenting,unit:%;A:degree of pre-procedural side branch stenosis;B:diameter of the side brance;C:biburcation angle;D:the degree of pre-procedural main branch stenosis).Conclusion In bifurcation lesions,side branch stenosis after stenting in the main branch is related to plaque burden of both branches,diameter of the side branch and the bifurcational angle.Serious plaque burden in both branches,small side branch and sharper biburcation angle are more likely to cause side branch occlusion after main branch stenting.
