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目的：比较剖宫产术术中出血量的3种评估方法以及分析影响剖宫产术术中出血量的相关因素。方法：采用称重法精确测量中国医科大学医科大学第二附属医院滑翔院区2014年5月到2014年8月100例子宫下段剖宫产患者术中出血量，与目测估算出血量和血红蛋白对比法相比较，通过分析患者的临床资料探讨影响剖宫产术中出血量的相关因素。结果：对称重测量剖宫产术中出血量、目测估算失血量与血红蛋白对比法计算出血量行非参分析，结果显示三者间有显著差异（z ＝7．25，p ＝0．01），其中称重法测量出血量（213±78ml）显著高于（P ＝0．005）目测估算出血量（200±50ml），也显著高于（P ＝0．64）血红蛋白对比法（175±64ml），产次≥2次者，术中出血量均高于初产妇（P ＜0．05），硬膜外阻滞麻醉组（n ＝13）术中出血量高于腰硬联合阻滞麻醉组（n ＝182）（P ＞0．05）。结论：术中出血量的控制与术者的临床经验有关，子宫下段剖宫产术中出血量波动范围较大，经产妇和麻醉方式等，均是影响剖宫产出血量的因素。称重法能精确的测量剖宫产术中的出血量，应值得推广。“,”Aim:to compare the bleeding amount of cesarean section three assessment methods,and analyze the related factors influencing the bleeding amount of cesarean section. Methods:using weighing method precise measurement of the second af iliated hospital of China medical university medical university to glide on campus in May 2014 to August 2014,100 cases of lower uterine segment cesarean section patients with intraoperative blood loss,compared with visual estimation the bleeding and hemoglobin comparison method,through the analysis of the clin-ical data of patients explore the related factors af ecting the bleeding in cesarean section.Results:the symmetric weight measurement in cesarean section hemorrhage,visual estimation of blood loss and hemoglobin contrast method to calculate the hemorrhage amount for non parametric analysis,the result shows that there is a significant dif erence between the three (z =7.25,p =0. 01),wherein the weighing method to measure the amount of bleeding (213 +78ml)(P =0.005)was significantly higher than that of visual estimation of the amount of bleeding (200 +50ml),hemoglobin (P =0.64)were significantly higher than those of contrast method (175 +64ml),parity is more than 2 times,the amount of bleeding in operation was higher than that of primipara (P 0.05).Conclusion:the clinical experience of the control and operation of the amount of bleeding in operation was related to lower uterine cesarean section hemorrhage in the range of volume fluctuations,multipara and anesthesia methods,are al factors that af ect the amount of bleeding in cesarean section.The weighing method can bleeding accurate measurement in cesarean section,should be worthy of promotion.