title: Ectopic pregnancy after levonorgestrel emergency contraception.
abstract: BACKGROUND
  Although the possibility of ectopic pregnancy after intake of levonorgestrel (LNG) as an emergency contraceptive (EE) pill is well-known, the causality has not been well established.
  
  
  METHODS
  A 27-year-old nulliparous woman with regular menstrual periods took 1.5-mg LNG EE midcyclic 5 h after an unprotected intercourse. She had prolonged vaginal bleeding at the expected time. She consulted the general practitioner because of continuous vaginal bleeding for 4 weeks and lower abdominal pain. The pregnancy test was positive, and her symptoms and clinical findings suggested an ectopic pregnancy. At emergency surgery, she was found to have a left tubal pregnancy.
  
  
  CONCLUSIONS
  The possible role of 1.5-mg LNG EE in causing ectopic pregnancy is discussed. A high serum LNG concentration decreases ciliary activity and tube motility, but further epidemiological studies are necessary to establish the risk of ectopic pregnancy following intake of LNG EE.
authors.affiliation: Women and Children's Division, Department of Obstetrics and Gynecology, Oslo University Hospital, Norway. kozinszkyz@yahoo.com
authors.forename: Zoltan
authors.initials: Z
authors.lastname: Kozinszky
authors.forename: Ragnhild Tøsse
authors.initials: RT
authors.lastname: Bakken
authors.forename: Marit
authors.initials: M
authors.lastname: Lieng
mesh_terms: D044363:Contraception, Postcoital / Q000009:adverse effects* / Q000379:methods*; D003283:Contraceptives, Postcoital, Synthetic; D005260:Female; D006801:Humans; D016912:Levonorgestrel; D011247:Pregnancy; D011274:Pregnancy, Tubal / Q000209:etiology* / Q000601:surgery
chemical_list: D003283:Contraceptives, Postcoital, Synthetic; D016912:Levonorgestrel