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目的探讨影响剖宫产瘢痕子宫人工流产术后宫腔残留的相关因素。方法对要求终止妊娠10周内的512例剖宫产瘢痕子宫妇女的人工流产资料进行回顾性分析。结果距离剖宫产时间<1年者术后残留率明显高于≥1年者;因宫颈因素行剖宫产者人工流产手术时间明显长于其他因素;随妊娠周数增加,手术时间延长、残留率增高,经统计学比较差异有统计学意义(P<0.05);子宫位置异常是导致手术困难的因素,尤其是宫颈、宫体角度<90°者手术时间延长、残留率增高,经统计学比较差异有统计学意义(P<0.05);孕次增多,残留率升高且手术时间延长;宫底部孕囊术后宫腔残留率最高。结论影响剖宫产瘢痕子宫人工流产术后宫腔残留的相关因素有:距离剖宫产时间、剖宫产原因、宫颈与宫体角度、妊娠周数、既往孕产史及孕囊位置,其中妊娠周数及宫颈与宫体角度是影响人工流产术后宫腔残留的关键因素。
Objective To investigate the related factors that affect the residual uterine cavity after cesarean scar pregnancy. METHODS: A retrospective analysis of data on abortion in 512 women with cesarean scar cases requiring termination of pregnancy within 10 weeks of pregnancy was conducted. Results The time from caesarean section to 1 year was significantly higher than that after 1 year. The time of induced abortion was significantly longer than that of other factors due to cervical caesarean section. With the increase of gestational weeks, the time of operation was longer, (P <0.05). Abnormal uterine position was the cause of surgical difficulties, especially when the angle of cervical and uterine body was less than 90 °, the operation time was prolonged and the residual rate was increased. According to the statistic The difference was statistically significant (P <0.05); pregnancy increased, the residual rate increased and the operation time was prolonged; uterine gestational sac residual ratio was the highest. CONCLUSIONS: The factors that influence the residual uterine cavity after cesarean section scar induced uterine abortion are as follows: the time from cesarean section, the cause of cesarean section, the angle of cervix and uterus, the number of gestational weeks, the history of previous pregnancy and gestational sac, Pregnancy weeks and cervical and uterine angle is the key factor that affects uterine cavity residual after induced abortion.