Related Experiment Video
Updated: Feb 4, 2026

A Novel Approach for the Administration of Medications and Fluids in Emergency Scenarios and Settings
Published on: November 9, 2016
Ectopic pregnancy following oral levonorgestrel emergency contraception use
Yohei Kitani1, Tatsuya Ishiguro1, Akiko Kobayashi1
1Department of Obstetrics and Gynecology, Niigata University Medical and Dental Hospital, Niigata, Japan.
Abstract:
Levonorgestrel is used worldwide as an emergency oral contraceptive. There have been occasional reports of ectopic pregnancy after oral levonorgestrel use. We present a case of ectopic tubal pregnancy after the use of oral levonorgestrel as an emergency contraceptive in a 37-year-old woman with a history of treatment for Chlamydia trachomatis infection. She conceived after sexual intercourse on menstrual day 14 of the first menstrual cycle following a normal delivery. After salpingectomy for this right tubal pregnancy, her following pregnancy was an ectopic pregnancy in the contralateral tube, which was treated with laparoscopic salpingectomy. Histopathological examination revealed endometriosis. We should be aware of ectopic pregnancy even after emergency contraceptive use, especially in patients with risk factors, such as Chlamydia infection and endometriosis. Because the efficacy of levonorgestrel decreases after ovulation, we should check the stage of the cycle before prescription.
Related Concept Videos
Emerging Adulthood
Introduction Cardiac Emergencies
Oral Cavity
Teeth: The teeth are the hardest structures in our bodies. Humans have two sets of teeth throughout their lifetime: deciduous (baby) teeth and permanent teeth. Each tooth consists of several parts: the crown (visible part), the root (embedded in the jaw), enamel (hard outer...
Applications of GIS: Disaster Management and Emergency Response
Oral Hypoglycemic Agents: Glinides
Psychosexual Stages of Personality: Oral
Weaning, typically occurring...

