title: Preoperative planning of surgery for deeply infiltrating endometriosis using the ENZIAN classification.
abstract: OBJECTIVE
  To use the ENZIAN classification for preoperative estimation of laparoscopic operating time in patients with deeply infiltrating endometriosis (DIE).
  
  
  METHODS
  Retrospective study of women with DIE (n=151) who underwent laparoscopic surgery.
  
  
  RESULTS
  151 of 470 patients had DIE (n=205 lesions) exclusively in compartments A (rectovaginal septum, vagina), B (sacrouterine ligament to the pelvic wall) and C (rectum, sigmoid colon). These laparoscopically treated lesions were used to calculate a model for estimating operating time for DIE, assuming complication-free procedures (overall significance for model's predictive power: P<0.001). The error of estimation for the operating time prediction is 0 ± 35.35 min (mean ± SD; range -83 to +117 min). The actual operating time for all operations was 109.32 ± 74.38 min (mean ± standard deviation).
  
  
  CONCLUSIONS
  Using a model for predicting operating time based on the ENZIAN classification enables resources to be planned more precisely in surgery management. Patients with DIE can also be given more precise information regarding the expected operating time.
authors.affiliation: Department of Obstetrics and Gynecology, Linz General Hospital, Linz, Austria.
authors.forename: Dietmar
authors.initials: D
authors.lastname: Haas
authors.forename: Radek
authors.initials: R
authors.lastname: Chvatal
authors.forename: Alwin
authors.initials: A
authors.lastname: Habelsberger
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Schimetta
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Wayand
authors.forename: Andreas
authors.initials: A
authors.lastname: Shamiyeh
authors.forename: Peter
authors.initials: P
authors.lastname: Oppelt
mesh_terms: D000328:Adult; D004715:Endometriosis / Q000145:classification* / Q000601:surgery*; D005260:Female; D006801:Humans; D008875:Middle Aged; D061646:Operative Time; D010934:Planning Techniques; D011300:Preoperative Care; D012044:Regression Analysis; D055815:Young Adult