title: Risk Factors for De Novo Mixed Urinary Incontinence and Stress Urinary Incontinence Following Surgical Removal of a Urethral Diverticulum.
abstract: OBJECTIVE
  The aim of the present study was to investigate the risk factors for the development of de novo stress urinary incontinence (SUI) and mixed urinary incontinence (MUI) after surgical removal of a urethral diverticulum (UD).
  
  
  METHODS
  We identified 35 consecutive women that underwent surgical removal of a UD between November 2002 and December 2009, and we retrospectively reviewed their medical records, including patient demographics, pelvic magnetic resonance imaging (MRI), presenting symptoms related to voiding, and outcomes.
  
  
  RESULTS
  Among the 35 patients we identified, 28 were included in the study. After UD removal, five of the 28 patients (17.8%) developed de novo MUI, and four of the 28 patients (14.2%) developed de novo SUI. The incidences of SUI and MUI were significantly higher in patients who had a UD that measured over 3 cm in diameter and in patients in whom the UD was located in the proximal urethra. Of the seven patients with a diverticulum over 3 cm, SUI occurred in three (42.8%) (P = 0.038) and MUI occurred in five (45.4%) (P < 0.001). Of the 11 patients with a diverticulum located in the proximal urethra, SUI occurred in five (45.4%) (P = 0.011) and MUI occurred in four (36.4%) (P = 0.011).
  
  
  CONCLUSIONS
  Significant risk factors for the development of SUI and MUI after transvaginal simple diverticulectomy include a UD measuring over 3 cm and a UD located in the proximal urethra.
authors.affiliation: Department of Urology, Soonchunhyang University Hospital, Seoul, KoreaDepartment of Urology, Soonchunhyang University Hospital, Bucheon, Korea.
authors.forename: Jae Heon
authors.initials: JH
authors.lastname: Kim
authors.affiliation: Department of Urology, Soonchunhyang University Hospital, Seoul, KoreaDepartment of Urology, Soonchunhyang University Hospital, Bucheon, Korea.
authors.forename: Kwang Woo
authors.initials: KW
authors.lastname: Lee
authors.affiliation: Department of Urology, Soonchunhyang University Hospital, Seoul, KoreaDepartment of Urology, Soonchunhyang University Hospital, Bucheon, Korea.
authors.forename: Jun Mo
authors.initials: JM
authors.lastname: Kim
authors.affiliation: Department of Urology, Soonchunhyang University Hospital, Seoul, KoreaDepartment of Urology, Soonchunhyang University Hospital, Bucheon, Korea.
authors.forename: Min Eui
authors.initials: ME
authors.lastname: Kim
authors.affiliation: Department of Urology, Soonchunhyang University Hospital, Seoul, KoreaDepartment of Urology, Soonchunhyang University Hospital, Bucheon, Korea.
authors.forename: Young Ho
authors.initials: YH
authors.lastname: Kim
keywords: overactive bladder; stress urinary incontinence; urethral diverticulum