Combination between Mifepristone and Methotrexate to Treat Ectopic Pregnancy: A Systematic Review Protocol
Background: In recent years, the morbidity of ectopic pregnancy and the proportion of young and childless patients have increased year by year, which makes it important to early diagnose EP, effectively save patients' lives and furthest preserve their fertility. Methotrexate and mifepristone are most widely used in conservative treatments, however, there is no accurate conclusion about which therapy is better. Therefore, the aims in this meta-analysis are, on the one hand, to systematically analyze the efficacy of mifepristone combined with methotrexate in the treatment of ectopic pregnancy through existing studies, and to draw scientific conclusions. On the other hand, to fill the gap of relevant analysis in China and abroad, to evaluate the advantages and disadvantages of inclusion trials and propose improvement measures and scientific designing schemes. Methods: Six electronic databases will be searched, including PubMed, Embase, Cochrane Library, the China National Knowledge Infrastructure(CNKI), Chinese Science and Technology Periodical Database (VIP), and Wanfang Database (WF). Literature from October 2015 to October 2020 on randomized controlled trials will be searched, without any language or publication restriction. Search terms include mifepristone, methotrexate, ectopic pregnancy, and random (free word/synonym expansion). Included in a randomized controlled trial, the treatment group was treated with mifepristone combined with methotrexate, and the control group was treated with mifepristone alone. Revman 5.4 (provided by Cochrane) will be used to evaluate the quality of the literature, and the corresponding effect model will be selected to analyze the results. The cure rate will be the main outcome index, and the remaining outcome measures after literature inclusion will be the secondary outcome indexes. Result: Only when we finish this meta-analysis can we get the result. Discussion: The results of this study will provide reliable evidence for the efficacy of mifepristone combined with methotrexate therapy in the treatment of ectopic pregnancy.