title: Voiding dysfunction after total mesorectal excision in rectal cancer.
abstract: OBJECTIVE
  The aim of this study was to assess the voiding dysfunction after rectal cancer surgery with total mesorectal excision (TME).
  
  
  METHODS
  This was part of a prospective study done in the rectal cancer patients who underwent surgery with TME between November 2006 and June 2008. Consecutive uroflowmetry, post-voided residual volume, and a voiding questionnaire were performed at preoperatively and postoperatively.
  
  
  RESULTS
  A total of 50 patients were recruited in this study, including 28 male and 22 female. In the comparison of the preoperative data with the postoperative 3-month data, a significant decrease in mean maximal flow rate, voided volume, and post-voided residual volume were found. In the comparison with the postoperative 6-month data, however only the maximal flow rate was decreased with statistical significance (P=0.02). In the comparison between surgical methods, abdominoperineal resection patients showed delayed recovery of maximal flow rate, voided volume, and post-voided residual volume. There was no significant difference in uroflowmetry parameters with advances in rectal cancer stage.
  
  
  CONCLUSIONS
  Voiding dysfunction is common after rectal cancer surgery but can be recovered in 6 months after surgery or earlier. Abdominoperineal resection was shown to be an unfavorable factor for postoperative voiding. Larger prospective study is needed to determine the long-term effect of rectal cancer surgery in relation to male and female baseline voiding condition.
authors.affiliation: Department of Urology, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea.
authors.forename: Jae Heon
authors.initials: JH
authors.lastname: Kim
authors.forename: Tae Il
authors.initials: TI
authors.lastname: Noh
authors.forename: Mi Mi
authors.initials: MM
authors.lastname: Oh
authors.forename: Jae Young
authors.initials: JY
authors.lastname: Park
authors.forename: Jeong Gu
authors.initials: JG
authors.lastname: Lee
authors.forename: Jun Won
authors.initials: JW
authors.lastname: Um
authors.forename: Byung Wook
authors.initials: BW
authors.lastname: Min
authors.forename: Jae Hyun
authors.initials: JH
authors.lastname: Bae
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