无血手术也称无血外科手术，是一种外科医学的技术，其主要目的，在于令到手术时病人的出血量减至最低，以尽可能避免因为伤口过大，令病人失血过多而需要输血。此技术更可完全避免因输血而产生的感染和并发症之危险。
结论在无iabp辅助的情况下，为低射血分数患者实施OP CAB手术是可行的。
Conclusions in the absence of prophylactic IABP, OPCAB can be safely operated on in patients with low ejection fraction.
手术几乎在无血状态下完成，患者一般感觉不到疼痛，术后也无需填塞。
Surgery in almost no blood condition, patients completed general feel any pain, postoperative also need not filling.
结果 8例患者围手术期无扩张器外露及皮瓣血运障碍等并发症，皮瓣转移修复术后全部皮瓣成活，伤口愈合良好。
Results No perioperative dilator exposure or skin flap complications such as blood circulation disorders occurred in 8 patients, and all the skin flaps survived and the wounds healed well.
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