The medical treatment of unruptured ectopic pregnancy with methotrexate and citrovorum rescue: preliminary experience.

Seven women with unruptured tubal pregnancies diagnosed on laparoscopy were treated with methotrexate and citrovorum rescue. Criteria for inclusion in the study were that the level of human chorionic gonadotropin (hCG) be plateaued or rising, that the ectopic pregnancy not exceed 3 X 3 cm, that the tubal serosa be intact, and that there be no active bleeding. The women were followed with serial measurements of hCG, complete blood counts, and liver function tests. All women responded to a single course of therapy. The median time to resolution (from the first day of treatment to when the hCG was undetectable) was 31 days (range, 5 to 50 days). Follow-up hysterosalpingograms were available for five women. Four women demonstrated tubal patency, and one showed a unilateral occlusion on the side of the ectopic. One woman was found to have an intrauterine pregnancy prior to the scheduled time of hysterosalpingogram.