同时，需要更多的试验，确定特定的患者群中术前行冠状动脉血管重建术可减少围手术期和长期的心脏事件，他指出。

Also, more trials are needed to identify specific subsets of patients in whom preoperative coronary revascularization might reduce perioperative and long-term events, he notes.

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结论冠状动脉血管闭塞时间越长，血运重建术成功率越低。

Conclusion It is found that the longer coronary artery occlusion of the lower success in revascularization.

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