title: Importance of cyst content in hydatid liver surgery.
abstract: OBJECTIVE
  Cyst content in hydatid liver surgery is a determinant of postoperative cavity-related complications.
  
  
  METHODS
  Cohort analytic study.
  
  
  METHODS
  Referral public hospital.
  
  
  METHODS
  Sixty-seven patients who had conservative surgery for hydatid liver disease were analyzed prospectively. Cysts were grouped as to the contents. Cysts containing bile and/or pus were considered complicated, whereas others were uncomplicated. After partial cystectomy, cavities were managed with external drainage, omentopexy, or introflexion, determined by the choice of the surgeons.
  
  
  METHODS
  Outcomes were measured by postoperative cavity-related complications, such as biliary leakage (leakage for 10 days or less), biliary fistula (leakage for more than 10 days), cavity infections, and postoperative hospitalization.
  
  
  RESULTS
  Patient and cyst characteristics were comparable among the groups. External drainage technique had slightly more frequent cavity-related complications than omentopexy or introflexion (1.5-fold to 2-fold difference). More importantly, complications were significantly more frequent in the complicated cysts than in the uncomplicated cysts (7-fold to 30-fold difference). Mean postoperative hospitalization time for uncomplicated cysts was 6.5 days, and it was similar whether they were treated by external drainage, omentopexy, or introflexion (7.0, 6.2, and 5.8 days, respectively). Mean postoperative hospitalization time for complicated cysts was longer than for uncomplicated cysts (17.5 days; P =.008).
  
  
  CONCLUSIONS
  Uncomplicated cysts have lower complication rates and short hospital stay with each cavity management technique. Complicated cysts have higher complication rates and longer hospital stay regardless of the management technique. Therefore, complicated and uncomplicated cysts should be considered different forms of the disease and evaluated differently.
authors.affiliation: Department of Gastrointestinal Surgery, Turkey Yuksek Ihtias Hospital, Ankara, Turkey. cuneytkayaalp@hotmail.com
authors.forename: Cuneyt
authors.initials: C
authors.lastname: Kayaalp
authors.forename: Neriman
authors.initials: N
authors.lastname: Sengul
authors.forename: Musa
authors.initials: M
authors.lastname: Akoglu
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000704:Analysis of Variance; D015331:Cohort Studies; D004322:Drainage; D004444:Echinococcosis, Hepatic / Q000473:pathology / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000453:epidemiology*; D011446:Prospective Studies; D016896:Treatment Outcome