title: Twenty-one years of experience with ovarian ectopic pregnancy at one institution in Taiwan.
abstract: OBJECTIVE
  To review the experience with patients with ovarian ectopic pregnancy (OEP) at Chang Gung Memorial Hospital, Lin-Kou Medical Center, Tao-Yuan, Taiwan, between 1989 and 2009.
  
  
  METHODS
  A retrospective review of the presentation, prevalence, diagnosis, and trends in treatment of patients with OEP, and the use of assisted reproductive technology (ART) procedures and intrauterine devices (IUD). The incidence rate ratios (IRR) of ectopic pregnancies (EPs) per live births, OEPs per EPs, and OEPs per live births were analyzed.
  
  
  RESULTS
  The 110 OEPs diagnosed comprised 2.0% of all EPs (n=5408) and 1:1543 of all live births, leading to a mean OEP per year of 5.24. Seventy-eight patients were managed with laparoscopy and 32 underwent laparotomy. Twenty-six (23.6%) patients used an IUD and 12 (10.9%) had undergone ART. OEP associated with ART increased in the last 10 years of the study period. The IRR of EPs per live births, OEPs per EPs, and OEPs per live births all increased between 1989 and 2009. Management of OEP tended to favor laparoscopy in the later years.
  
  
  CONCLUSIONS
  There was a trend toward better management of OEP with laparoscopy. ART has become a risk factor for OEP. The IRR of EPs per live births, OEPs per EPs, and OEPs per live births all increased over the 21-year period.
authors.affiliation: Department of Obstetrics and Gynecology, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.
authors.forename: Po-Chun
authors.initials: PC
authors.lastname: Ko
authors.forename: Liang-Ming
authors.initials: LM
authors.lastname: Lo
authors.forename: T'sang-T'ang
authors.initials: TT
authors.lastname: Hsieh
authors.forename: Po-Jen
authors.initials: PJ
authors.lastname: Cheng
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D015994:Incidence; D007434:Intrauterine Devices / Q000009:adverse effects; D010535:Laparoscopy / Q000379:methods*; D007813:Laparotomy / Q000379:methods*; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000175:diagnosis / Q000453:epidemiology / Q000601:surgery*; D015995:Prevalence; D027724:Reproductive Techniques, Assisted / Q000009:adverse effects; D012189:Retrospective Studies; D012307:Risk Factors; D013624:Taiwan