1261 Risk Factors for Recurrent Ectopic Pregnancy Following Single-Dose Methotrexate Treatment

Abstract

Study Objective We aimed to investigate the predisposing factors for recurrent ectopic pregnancy (REP) following single-dose methotrexate (MTX) treatment. Design A retrospective cohort study. Setting A tertiary medical center. Patients or Participants All patients diagnosed with a first EP and treated by intention of single-dose regimen of intramuscular MTX. Interventions Cases (REP) and controls (first-time only EP) were compared in order to identify risk factors for REP. Forward stepwise multivariate logistic regression analyses were subsequently carried out. Measurements and Main Results 272 women were included in the cohort of the study. Of those 22 (8.1%) had a REP. Women in the REP group had higher proportion of history of abortions (45.4% vs. 23.6%, p=0.02), higher rates of previous pelvic surgery and a history of both pelvic and uterine surgery (45.4% vs. 6.4%, 4.5% vs. 1.6%, respectively, p Conclusion Among women with EP, attention should be paid to women with previous pelvic surgery. Efforts should be made in order to achieve medical treatment success to prevent REP.