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目的探讨对冠脉真性分叉病变采用主支预扩张球囊预留、扩张边支介入技术中行主支支架后扩张对边支血流的影响。方法对51例冠心病患者51处真性分叉病变行主支支架外侧球囊保护冠脉边支操作技术后,用和主支支架相同的非顺应性球囊对主支支架行高压后扩张。结果介入治疗术后边支100%≥TIMI2级血流,主支均达TIMI3级血流。结论对采用边支预留主支预扩张球囊保护边支技术的患者行高压后扩张是安全、可行的,对边支血流无明显影响。
Objective To investigate the effect of dilatation on collateral blood flow in patients with coronary bifurcation lesion undergoing primary balloon dilatation and balloon dilation. Methods Fifty-one patients with coronary artery disease of 51 patients with true bifurcation underwent balloon-assisted coronary stent-graft technique. The same non-compliant balloon as the main stent was used to dilate the main stent. Results After interventional treatment, 100% of the branches of branches of arteries were inflated with TIMI grade 2 blood flow and the main branches reached TIMI grade 3 blood flow. Conclusions It is safe and feasible to use post-high-pressure dilatation in patients who have the support of pre-dilatation and balloon dorsal branch occlusion by limbal branch. There is no significant effect on the collateral flow.