title: The incidence of postoperative ileus in patients who underwent robotic assisted radical prostatectomy.
abstract: BACKGROUND
  Our aim was to examine the incidence and risk factors of postoperative ileus among patients who underwent robot-assisted radical prostatectomy (RARP).
  
  
  METHODS
  We retrospectively reviewed 239 patients who underwent RARP transperitoneally between February 2009 and December 2011. Patients switched to open surgery were excluded. We defined postoperative ileus as intolerance of a solid diet continued until the third postoperative day and beyond. By Clavien classification, we evaluated the perioperative complications that cause or contribute to postoperative ileus. Similarly, we analyzed the impact of anesthesia risk score on the incidence of postoperative ileus.
  
  
  RESULTS
  The study included 228 patients. The mean period to tolerate solid food was 1.24 days. Only 6 patients experienced postoperative ileus, all of whom were treated with a conservative approach. The two groups differed significantly in the duration of abdominal drainage, hospital stay, modified Clavien classification, and the presence of comorbidity diabetes mellitus (P <0.5 for all factors). Multiple logistic regression analysis revealed that diabetes mellitus was an independent risk factor for postoperative ileus.
  
  
  CONCLUSIONS
  We suggest that diabetes mellitus is an independent risk factor for postoperative ileus in patients undergoing robot-assisted radical prostatectomy.
authors: Department of Urology, Yeditepe University School of Medicine, Istanbul, Turkey.
authors: Ahmet Tunc
authors: AT
authors: Ozdemir
authors: Department of Urology, Ataturk Training and Research Hospital, Ankara, Turkey.
authors: Serkan
authors: S
authors: Altinova
authors: Department of Urology, Yeditepe University School of Medicine, Istanbul, Turkey.
authors: Hakan
authors: H
authors: Koyuncu
authors: Department of Urology, Ataturk Training and Research Hospital, Ankara, Turkey.
authors: Ege Can
authors: EC
authors: Serefoglu
authors: Department of Urology, Ataturk Training and Research Hospital, Ankara, Turkey.
authors: Ibrahim Haci
authors: IH
authors: Cimen
authors: Department of Urology, Ataturk Training and Research Hospital, Ankara, Turkey.
authors: Derya Mevlana
authors: DM
authors: Balbay
keywords: morbidity; postoperative ileus; prostate cancer; robot-assisted radical prostatectomy