Objective:To summarize the related risk factors of threatened abortion patients, to observe the key success factors related to drug tocolytic therapy and nursing care of patients.Method:The epidemiology and the clinical features of 130 patients with threatened abortion from January 2010 to December 2013 in our hospital were retrospectively analyzed ,after treatment and nursing measures of tocolysis for patients, they were made statistical analysis of risk factors with the aid of statistical software SPSS 20.0.Result: The average age of the successful group was (27.13±5.46) years old, it was significantly lower than (36.31±6.89) years old of in the control group, there was significant difference(P<0.05); the successful group and the failed group,s patients were compared with the infection of the reproductive system, history of abortion, birth history, had the history of cesarean section, abdominal operation history, the application of IUD ,the history of ectopic pregnancy, emergency contraception history, history of assisted reproductive technology, the successful group were significantly lower than the failure group, there were statistically significant differences(P<0.05).Conclusion: The incidence of threatened abortion is the result of many factors, and the infection of reproductive system, history of abortion, fallopian tube operation, the application of IUD, cesarean section and emergency contraception and other factors, combined with the above risk factors for patients, tocolytic therapy should be closely observed, to avoid long-term medicine theraphy blindly causing missed abortion.%目的：总结先兆流产患者发病的相关危险因素，观察药保胎治疗与护理患者的成功与否的关键因素。方法：回顾性分析2010年1月-2013年12月在笔者所在医院妇产科收治的130例先兆流产患者的流行病学和临床特征资料，对患者进行保胎治疗与护理措施，并采用统计软件SPSS 20.0对危险因素进行统计分析。结果：成功组平均年龄(27.13±5.46)岁，显著低于对照组患者的(36.31±6.89)岁，差异有统计学意义(P<0.05)；成功组与失败组患者生殖系统感染史、有流产史、有分娩史、有剖宫产史、有腹腔手术史、有IUD应用史、有异位妊娠史、有紧急避孕史、有辅助生殖技术史等方面比较，成功组显著低于失败组，差异均有统计学意义(P<0.05)。结论：先兆流产的发生是由多种因素综合作用的结果，可能与生殖系统的感染、流产史、输卵管手术、IUD的应用、剖宫产术及紧急避孕等因素有关，对于合并以上危险因素的患者，保胎治疗应密切观察，避免长期盲目保胎造成过期流产。
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