Research on the Relative Risk Factors of Ectopic Pregnancy After IVF-ET

Objective:To explore the risk factors of ectopic pregnancy after in vitro fertilization and embryo transfer(IVF-ET).Methods:122 cases of ectopic pregnancy in 1 850 cases after IVF-ET treatment(6.6%)were selected between 2005,Jan.and 2010,Dec.in Center of Reproductive Medicine,Tianjin Central Hospital of Gynecology and Obstetrics,including 11 cases of Heterotopic pregnancy,as the observation group.450 cases were randomly selected from 1 728 cases of intrauterine pregnancy after IVF-ET as control.Pelvic oviduct factors、endometriosis and endometriosis postsurgery factors、ovary diseases、hypomenorrhea,general clinical features were compared between two groups.Results:The ectopic pregnancy rate was significantly increased in those patients with pelvic oviduct factors,endometriosis and endometriosis postsurgery factors,endometrial thickness≤7 mm.Conclusions:For those patients who have above mentioned risk factors,those risk factors should be controlled to the greatest extent when they received IVF-ET treatment.For those patients who have potential EP,early discovery and diagnosis such as sera hCG level tests and B ultrasounds at reasonable times,and early treatment,are important for them to prevent ectopic pregnancy rupture.