Objective: The aim of this study was to analyze the influential factors of terminating early pregnancy of scar uterus with mifepristone and misoprostol. Methods: 182 pregnant women were recruited from the sixth people's hospital of Panzhihua between January 2008 and December 2013, screening al women undergoing medical abortion with mifepristone and misoprostol. The clinical outcome was defined as complete expulsion of intrauterine contents without (successful group) or with (failed group) surgical intervention.Results:154 cases were success complete abortion, the rate of complete abortion was 84.62%(154/182). Factors associated with complete abortion were the uterus position (backward, backward after flexor), gestational age (>4 weeks), increased gravidity (≥3), previous abortions (≥1) and gestational sac diameter (≥20mm) were associated with unsuccessful medical abortions.Conclusion: The uterus position, gestational age and history of abortions, gravidity are at increased risk for failed medical abortion.
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