title: Perioperative complication rates of primary and repeat hysteroscopic endometrial ablations.
abstract: OBJECTIVE
  To determine perioperative complication rates at primary and repeat endometrial ablations.
  
  
  METHODS
  Prospective cohort study (Canadian Task Force classification II-2).
  
  
  METHODS
  Tertiary care teaching hospital.
  
  
  METHODS
  Seventy-five women who underwent a repeat ablation and 800 who had a primary ablation by the same surgeon (GAV) between 1990 and 2000 for a diagnosis of menorrhagia and/or dysmenorrhea.
  
  
  METHODS
  Hysteroscopic ablation involving coagulation or resection of endometrium, and second ablation after failure of the first.
  
  
  RESULTS
  Serious perioperative complications were uterine perforation, hemorrhage, excess fluid absorption, and genital tract burns. They occurred in 9.3% of repeat ablations compared with 2.05% of primary ablations (p = 0.006).
  
  
  CONCLUSIONS
  Repeat endometrial ablation has a significantly higher rate of perioperative complications than primary ablation.
authors.affiliation: Department of Obstetrics and Gynaecology, St Joseph's Health Care, 268 Grosvenor St., London, Ontario N6A 4V2, Canada.
authors.forename: Erin
authors.initials: E
authors.lastname: MacLean-Fraser
authors.forename: Deborah
authors.initials: D
authors.lastname: Penava
authors.forename: George A
authors.initials: GA
authors.lastname: Vilos
mesh_terms: D000328:Adult; D004412:Dysmenorrhea / Q000601:surgery*; D004564:Electrocoagulation; D004717:Endometrium / Q000601:surgery*; D005260:Female; D006801:Humans; D015907:Hysteroscopy; D008595:Menorrhagia / Q000601:surgery*; D008875:Middle Aged; D011183:Postoperative Complications / Q000453:epidemiology*; D012086:Reoperation; D014592:Uterine Hemorrhage / Q000209:etiology; D014595:Uterine Perforation / Q000209:etiology*