目的　总结左房粘液瘤的临床表现、诊断手段及外科手术治疗时机的把握。　方法　本组 3 0例术前均由超声心动图诊断 ,共接受 3 2例次手术治疗 ,体外循环下平均阻断主动脉 2 3 .7(11～ 40 )min。　结果　本组患者中 2 4例心功能恢复良好 ,痊愈出院 ,随访无复发 ;6例术后早期死亡 ,死亡原因为心律失常 ,低心排综合征和多系统器官衰竭。结论　左房粘液瘤为心脏良性肿瘤中常见的类型 ,把握手术时机 ,避免肿瘤脱落引起栓塞等并发症的发生是手术成功的重要因素 Objective To summarize the clinical manifestations, diagnostic methods and the timing of surgical treatment of left atrial myxoma. Methods The group of 30 patients were diagnosed by echocardiography before surgery, a total of 32 cases underwent surgery, with an average of 23.7 (1140) min after cardiopulmonary bypass. Results Twenty-four patients in this group recovered heart function well and were discharged without any recurrence. Six patients died early after operation, and the cause of death was arrhythmia, low cardiac output syndrome and multiple system organ failure. Conclusions Left atrial myxoma is a common type in benign cardiac tumors. Seizing the timing of operation and avoiding complications such as embolization caused by tumor shedding are the important factors of successful operation