New Evidence to Guide Ectopic Pregnancy Diagnosis and Management.

IMPORTANCE: Ectopic pregnancy is a leading source of morbidity and mortality in pregnancy, accounting for 1% to 2% of all pregnancies. Timely diagnosis and management of these abnormal gestations are vital to patient safety.

OBJECTIVE: The objective of this study was to describe recent evidence in the risk factors, diagnosis, and management of ectopic pregnancy.

EVIDENCE ACQUISITION: Comprehensive review of the published literature.

RESULTS: Recent literature describes newly identified risk factors for ectopic pregnancy, particularly those specific to assisted reproduction. Furthermore, evidence mounts for the utility of endometrial sampling for the diagnosis of pregnancy location, allowing a significant proportion of women to avoid methotrexate by diagnosing failing intrauterine pregnancies instead. Finally, recent, high-level evidence supports (in women with normal contralateral fallopian tubes) the equivalence of salpingectomy and salpingostomy regarding rates of subsequent intrauterine pregnancy and recurrent ectopic pregnancy.

CONCLUSIONS AND RELEVANCE: While serial serum human chorionic gonadotropin levels and transvaginal ultrasound are the mainstays of ectopic pregnancy diagnosis, recent publications revisit the utility of endometrial sampling in diagnosing pregnancy location, using manual vacuum aspiration instead of the criterion-standard dilation and curettage. Expectant management of ectopic pregnancies is the subject of ongoing research, and in the meantime, treatment remains medical or surgical (dependent on clinical parameters and patient preference); salpingostomy and salpingectomy provide equivalent subsequent pregnancy outcomes in women with contralateral fallopian tubes in place.