Clinical Efficacy of Stent-balloon-stent (SBS) Technique in the Treatment of Coronary Bifurcation Lesions

This is a study to evaluate the application of stent-balloon-stent (Stent-balloon-stent, SBS) in complex bifurcation lesions. 1-2mm from the side branch (SB) opening, the stent was implanted in the side branch, and then the stent was implanted in the main vessel (MV).The guide wire enters the side branch from the mesh at the distal end of the main vascular stent, and the drug balloon is used to dilate the opening of the side branch, so that the opening area of the side branch is more than 5mm².The patients were examined by coronary angiography before operation and 6-12 months after operation, and the related data such as stenosis rate and minimum lumen diameter of diseased vessels were recorded. The incidence of target vessel failure (TLF) 6-12 months later, including cardiogenic death, target vessel myocardial infarction and clinically driven target vessel revascularization, was taken as the main clinical end point. The corresponding data of the patients before and after operation were obtained, and the clinical efficacy was compared with the existing double stent strategy.