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目的:比较左炔诺孕酮宫内缓释系统(LNG-IUS)分别在可视人工流产后即时放置和经期放置的临床效果。方法:将466例妇女分成2组,分别在可视人工流产后即时或经期放置,随访1年,对其不良反应、避孕效果、因症取出率和续用率进行观察对比。结果:2组放置LNG-IUS的带器妊娠率均为0,脱落、因症取出差异均无统计学意义(P>0.05),续用率两组分别为92.96%和94.01%,差异无统计学意义(P>0.05)。结论:LNG-IUS于可视人工流产后即时放置的不良反应、避孕效果、续用率、因症取出率与经期放置差异无统计学意义,可广泛应用。
OBJECTIVE: To compare the clinical efficacy of levonorgestrel intrauterine system (LNG-IUS) in immediate placement and menstrual placement after visual abortion. Methods: 466 women were divided into two groups. They were placed in immediate or menstrual period after visual abortion. The follow-up was 1 year. The adverse reaction, contraceptive effect, withdrawal rate and recovery rate were analyzed. Results: The pregnancy rates of two devices with LNG-IUS were all 0, and the difference was not statistically significant (P> 0.05). The follow-up rates were 92.96% and 94.01% respectively, with no statistical difference Significance (P> 0.05). CONCLUSION: The adverse reaction, contraceptive effect, follow-up rate, withdrawal rate due to illness and menstruation placement of LNG-IUS immediately after visual abortion can be widely used.