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在积极内科治疗下仍有左室功能不全的冠心病和轻微活动受限的心绞痛患者,应予冠状动脉重建术。一般认为左主干狭窄者和左室喷血分数<50％或(1/4以上)节段活动异常的三支狭窄者应作冠状动脉旁路移植术(CABG),术后生存率显著提高;而症状轻微的单支或双支(不包括左前降支近端)狭窄者行CABG后生存率未见显著提高。CABG能
Coronary heart disease with mild left ventricular dysfunction and patients with mildly-limited angina under active medical therapy should be given coronary revascularization. Generally believed that the left main stenosis and left ventricular ejection fraction <50% or more than (â ... ¢) segment abnormalities in the three stenosis should be coronary artery bypass grafting (CABG), postoperative survival was significantly improved; However, there was no significant improvement in survival after CABG in patients with mild symptoms of either stenosis or single stenosis (excluding the proximal left anterior descending artery). CABG can