title: Emergency peripartum hysterectomy and associated risk factors.
abstract: OBJECTIVE
  Peripartum hysterectomy at Los Angeles County-University of Southern California Medical Center was reviewed and associated risk factors were identified.
  
  
  METHODS
  Retrospective descriptive and cohort analysis from January 1985 to June 1990 was carried out. Adjusted relative risks for hysterectomy with 95% confidence intervals for identified risk factors were calculated where possible.
  
  
  RESULTS
  There were 123 cases of emergency peripartum hysterectomy (incidence of 1.3/1000 births). Indications for hysterectomy were primarily placenta accreta (n = 61), uterine atony (n = 25), unspecified uterine bleeding (n = 19), and uterine rupture (n = 14). The relative risk of emergency hysterectomy was 95.5 (95% confidence interval 66.7 to 136.9) for cesarean delivery, 10.78 (95% confidence interval 7.56 to 15.37) for prior cesarean delivery, and 97.29 (95% confidence interval 70.28 to 134.70) for placenta previa.
  
  
  CONCLUSIONS
  Cesarean delivery, prior cesarean delivery, placenta previa, placenta accreta, and uterine atony were identified risk factors for emergency peripartum hysterectomy.
authors.affiliation: Department of Obstetrics and Gynecology, University of Southern California, Los Angeles.
authors.forename: L M
authors.initials: LM
authors.lastname: Stanco
authors.forename: D B
authors.initials: DB
authors.lastname: Schrimmer
authors.forename: R H
authors.initials: RH
authors.lastname: Paul
authors.forename: D R
authors.initials: DR
authors.lastname: Mishell
mesh_terms: D000328:Adult; D002585:Cesarean Section / Q000009:adverse effects*; D004630:Emergencies; D005260:Female; D006801:Humans; D007044:Hysterectomy / Q000706:statistics & numerical data; D007743:Labor, Obstetric; D010921:Placenta Accreta / Q000209:etiology / Q000601:surgery; D011247:Pregnancy; D012189:Retrospective Studies; D012307:Risk Factors; D014591:Uterine Diseases / Q000209:etiology / Q000601:surgery; D014592:Uterine Hemorrhage / Q000209:etiology / Q000601:surgery; D014597:Uterine Rupture / Q000209:etiology / Q000601:surgery