title: Case-matched comparison of the retroperitoneal approach with laparotomy for necrotizing pancreatitis.
abstract: BACKGROUND
  Minimally invasive necrosectomy through a retroperitoneal approach is gaining popularity for the treatment of necrotizing pancreatitis. There is, however, no substantial evidence from comparative studies in favor of this technique over laparotomy. The aim of this case-matched study was to perform the first head-to-head comparison of necrosectomy by the retroperitoneal approach with laparotomy in patients with necrotizing pancreatitis.
  
  
  METHODS
  Between 2001 and 2005, there were 15 of 841 consecutive acute pancreatitis patients who underwent necrosectomy by the retroperitoneal approach using a small flank incision. These patients were matched for the presence of preoperative organ failure, status of infection, timing of surgery, age, and computed tomography severity index score with 15 of 46 patients treated with necrosectomy by laparotomy and continuous postoperative lavage (CPL).
  
  
  RESULTS
  In addition to all matched preoperative characteristics, there were no significant differences in sex, preoperative intensive care unit (ICU) admission, preoperative ICU stay, preoperative APACHE-II scores, and preoperative multiple organ failure (MOF). Postoperative complications requiring reintervention occurred in six patients in each group (p = 1.000). Postoperative new-onset MOF occurred in 10 patients in the laparotomy/CPL group versus 2 patients in the retroperitoneal approach group (p = 0.008). Six patients died in the laparotomy/CPL group versus 1 patient in the retroperitoneal approach group (p = 0.080).
  
  
  CONCLUSIONS
  The less postoperative organ failure and the trend toward lower mortality may point to a benefit of the retroperitoneal approach over laparotomy. A randomized controlled design is, however, still required to answer definitively the question of which operative technique is preferably for patients with (infected) necrotizing pancreatitis.
authors.affiliation: Department of Surgery, University Medical Center Utrecht, Room G.04.228, PO Box 85500, 3508, GA, Utrecht, The Netherlands. h.vansantvoort@umcutrecht.nl
authors.forename: Hjalmar C
authors.initials: HC
authors.lastname: van Santvoort
authors.forename: Marc G
authors.initials: MG
authors.lastname: Besselink
authors.forename: Thomas L
authors.initials: TL
authors.lastname: Bollen
authors.forename: Erik
authors.initials: E
authors.lastname: Buskens
authors.forename: Bert
authors.initials: B
authors.lastname: van Ramshorst
authors.forename: Hein G
authors.initials: HG
authors.lastname: Gooszen
mesh_terms: D000328:Adult; D000368:Aged; D016022:Case-Control Studies; D003646:Debridement / Q000379:methods; D006801:Humans; D007813:Laparotomy / Q000009:adverse effects / Q000379:methods*; D008297:Male; D008875:Middle Aged; D009426:Netherlands; D019283:Pancreatitis, Acute Necrotizing / Q000601:surgery*; D018579:Patient Selection; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D020535:Video-Assisted Surgery / Q000379:methods*