Four cases of cervical ectopic pregnancy successfully treated with vasopressin and hysteroscopy

Background: Treatment options for cervical ectopic pregnancy have been reported to include methotrexate therapy or a combination of uterine artery embolization and hysteroscopic surgery. There are concerns about the prolonged duration of treatment and the risk of decreased fertility with these methods. We report four cases of cervical ectopic pregnancy in which vasopressin was locally injected around the gestational sac under transvaginal ultrasound guidance, and hysteroscopic observation was performed after the gestational sac was removed.