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目的 了解支架置入术对冠状动脉分叉处病变相关分支的影响。方法 12 0例病人 ,132处分叉病变使用经皮腔内冠状动脉成形术 (PTCA)和支架术治疗 ,观察介入治疗对分叉病变相关分支的影响。结果 术中有 2 4根分支血管受压迫 ,分支受累发生率为 14 2 8%。以具有分支开口狭窄的Ⅰ型和Ⅳ型分叉病变的分支受累发生率为高。结论 冠状动脉分叉病变的介入治疗操作和分叉病变本身的解剖特征均是影响分支血流的重要因素。
Objective To investigate the effect of stent implantation on the lesion-related branches of coronary bifurcation. Methods Twenty-two patients with bifurcation lesions underwent percutaneous transluminal coronary angioplasty (PTCA) and stenting, and the effects of interventional therapy on the related branches of bifurcation lesion were observed. Results In operation, 24 branches of blood vessels were oppressed and the incidence of branch involvement was 14 2 8%. The incidence of branch involvement in type I and type IV bifurcation lesions with stented branches is high. Conclusion The interventional treatment of bifurcation lesions and the anatomical features of bifurcation lesions are both important factors affecting the branch blood flow.