中文摘要：

【目的】探讨单节段腰椎后路椎间融合术（posterior lumbar interbody fusion,PLIF）后隐性失血量的评估与分析,主要针对术后隐性失血的数量及对患者的影响加以讨论。【方法】回顾2014年4月至2016年10月单节段PLIF 82例,其中男23例,女59例;年龄在45-72岁,平均年龄57岁。所有病例均为初次行PLIF的患者,且24 h内补液总量不超过2 000 ml。分析患者术中、术后的总失血量、显性失血量和隐性失血量,以及术后处理和恢复情况。【结果】患者总失血量与术中出血量具有显著差异,术后3-5 d血红蛋白差异有统计学意义。【结论】PLIF术后隐性失血量比较大,几乎占失血总量的50%;引流血回输并不能够满足机体恢复循环的需要,并且显性出血停止后患者仍存在血液丢失。对隐性失血的重视有助于临床治疗中对失血量进行正确评估,以加强患者术后管理,确保患者安全度过手术期。

英文摘要：

【Objective】The purpose of this study to discuss after posterior lumbar interbody fusion hidden hemorrhage related assessment and treatment, especially the quantity and the influence.【Methods】Data of 82 patients who had undergone separate posterior lumbar interbody fusion from Apr 2014 to Oct 2016 were retrospectively studied. There were 23 males and 59 females aged from 45 to 72 years old, with a mean age of 57 years. In all cases for the first time in patients with posterior lumbar interbody fusion,which in 24 hours, rehydration aggregates were not more than 2000 ml. The intraoperative and postoperative bleeding, including hidden blood loss and total blood loss, were recorded and analyzed,as well as postoperative treatment and recovery.【Results】The blood loss in total and blood loss in the surgery have a significant difference, and the change of hemoglobin between 3 days to 5 days after the surgery have statistical difference.【Conclusion】 The hidden blood loss after posterior lumbar interbody fusion is relatively high,almost reached the half of total loss; drainage and blood transfusion can not meet the needs of body recovery cycle, and there still have blood loss after dominant bleeding stopped, therefore need to replenish the blood volume in time. Attaches great importance to hidden hemorrhage helps to assess blood loss in the correct analysis, to strengthen the management of patients with postoperative, help them go through the operation period smoothly.