目的总结非体外循环下左侧乳内动脉及桡动脉Y型桥的冠状动脉旁路移植术的疗效及安全性。

Objective To summarize the efficacy and security of off-pump Y-bridge coronary artery bypass grafting with left internal mammary artery and radial artery.

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目的：应用彩色多普勒超声检测评价冠状动脉架桥术(CABG)前后左侧内乳动脉(lima)桥的血液动力学变化。

Objective: to evaluate the hemodynamic changes of the left internal mammary artery (LIMA) preoperative and postoperative coronary artery bypass graft (CABG) with color Doppler flow imaging (CDFI).

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