There were no severe complications and death related to the operation.
无手术死亡及严重并发症，疗效满意。
No surgery related death or complications occurred. At 3 months after operation, all the patients were free from symptoms, and electrocardiogram returned to normal in 11 patients.
无手术死亡及手术并发症，术后3个月心绞痛、心悸症状完全缓解，11例心电图恢复正常。
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