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目的:探讨引起产后出血的原因和相关高危因素。方法:回顾性分析本院1999年1月～2005年12月49例产后出血发生的原因及相关因素。结果:产后出血49例,发生率2.58%,观察组分娩前诊断为病理妊娠33例,占所有产后出血病例的67.35%;对照组诊断病理妊娠10例,占20.41%;两组比较差异有显著性(χ2=21.9,P<0.01);由于子宫收缩乏力导致产后出血34例,占69.39%。结论:病理妊娠是产后出血的高危因素;子宫收缩乏力是产后出血的主要原因;正确、及时处理产后出血是降低孕产妇死亡率的关键。
Objective: To investigate the causes of postpartum hemorrhage and related risk factors. Methods: A retrospective analysis of our hospital from January 1999 to December 2005 49 cases of postpartum hemorrhage causes and related factors. Results: 49 cases of postpartum hemorrhage, the incidence rate of 2.58%, the observation group before diagnosis of pathological pregnancy in 33 cases, accounting for 67.35% of all cases of postpartum hemorrhage; control group diagnosed with pathological pregnancy in 10 cases, accounting for 20.41%; significant difference between the two groups (Χ2 = 21.9, P <0.01). Postpartum hemorrhage occurred in 34 cases (69.39%) due to uterine atony. Conclusion: Pathological pregnancy is the risk factor of postpartum hemorrhage. Uterine atony is the main cause of postpartum hemorrhage. The correct and timely treatment of postpartum hemorrhage is the key to reduce maternal mortality.