title: Preoperative computed tomography finding predicts for postoperative inguinal hernia: new perspective for radical prostatectomy-related inguinal hernia.
abstract: OBJECTIVE
  To investigate the incidence of radical prostatectomy-related inguinal hernia (RPRIH) and the predictive factors for RPRIH.
  
  
  METHODS
  We reviewed the medical charts of patients who had undergone retropubic radical prostatectomy (RRP) at our institution from January 2002 to December 2004 and had a median follow-up of 17 months (range 3 to 42). All patients were examined for RPRIH every 3 months. We also reviewed the computed tomography results in a blinded manner and investigated the predictive factors for RPRIH with multivariate analysis using the Cox proportional hazards model.
  
  
  RESULTS
  Of 98 patients analyzed, 17 were diagnosed with RPRIH after RRP (17.3%) at the median of 7 months (range 3 to 12). Preoperative computed tomography results were available for all patients, and subclinical inguinal hernia was identified in 20 (20.4%) of the 98 patients. Multivariate analysis showed that a subclinical inguinal hernia was the single predictive factor for RPRIH. The estimated rate of RPRIH was 60.6% in the subclinical inguinal hernia group and 9.5% in the normal group at 12 months (log-rank test, P <0.001).
  
  
  CONCLUSIONS
  The results of the present study have indicated that a preoperative computed tomography finding of a subclinical inguinal hernia predicts for postoperative inguinal hernia formation after RRP. RRP might only advance the time at which the inguinal hernia would develop with or without surgery. Thus, all patients with a subclinical inguinal hernia finding should be informed about the possibility of the development of RPRIH within 12 months after RRP and recommended to undergo surgical repair at RRP.
authors.affiliation: Department of Urology, Sunagawa City Medical Center, Sunagawa, Hokkaido, Japan.
authors.forename: Fumimasa
authors.initials: F
authors.lastname: Fukuta
authors.forename: Shin-ichi
authors.initials: S
authors.lastname: Hisasue
authors.forename: Masahiro
authors.initials: M
authors.lastname: Yanase
authors.forename: Ko
authors.initials: K
authors.lastname: Kobayashi
authors.forename: Shintaro
authors.initials: S
authors.lastname: Miyamoto
authors.forename: Shuichi
authors.initials: S
authors.lastname: Kato
authors.forename: Masaki
authors.initials: M
authors.lastname: Shima
authors.forename: Taiji
authors.initials: T
authors.lastname: Tsukamoto
authors.forename: Keiji
authors.initials: K
authors.lastname: Takatsuka
mesh_terms: D000368:Aged; D006552:Hernia, Inguinal / Q000000981:diagnostic imaging* / Q000453:epidemiology / Q000209:etiology*; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D011300:Preoperative Care; D011468:Prostatectomy / Q000009:adverse effects*; D014057:Tomography, X-Ray Computed