title: Assessing the vesico-urethral anastomosis after radical retropubic prostatectomy: transrectal ultrasonography can replace cystography.
abstract: OBJECTIVE
  To determine if transrectal ultrasonography (TRUS) is as reliable as cystography in detecting vesico-urethral extravasation (VE) after radical retropubic prostatectomy (RRP).
  
  
  METHODS
  Between October 2005 and February 2006 we prospectively investigated 100 consecutive patients undergoing RRP. The vesico-urethral anastomosis was assessed 6 days after RRP by a combined investigation with TRUS and cystography.
  
  
  RESULTS
  In most patients (79%), at 6 days after RRP the vesico-urethral anastomosis was watertight or showed minimal leakage (8%), so that the urinary catheter was removed. Different degrees of VE were detected in 21 patients. Because of small, moderate or marked VE, the indwelling catheter remained until 9, 14 and 21 days after RRP in five, three and five patients, respectively. Every VE documented by cystography was detected by TRUS beforehand; therefore TRUS showed no false-negative results in detecting a leaking anastomosis. In two patients paraurethral fluid was detected by TRUS mimicking VE, with no confirmation by cystography.
  
  
  CONCLUSIONS
  TRUS can safely replace cystography for detecting anastomotic leakage after RRP. The decision to remove the catheter after RRP can be made without radiation exposure and use of expensive contrast medium.
authors.affiliation: Department of Urology, Marienhospital Herne, Ruhr-Universität Bochum, Germany. thilo.eggert@marienhospital-herne.de
authors.forename: Thilo
authors.initials: T
authors.lastname: Eggert
authors.forename: Jüri
authors.initials: J
authors.lastname: Palisaar
authors.forename: Petra
authors.initials: P
authors.lastname: Metz
authors.forename: Joachim
authors.initials: J
authors.lastname: Noldus
mesh_terms: D000368:Aged; D000714:Anastomosis, Surgical / Q000379:methods; D015331:Cohort Studies; D020878:Device Removal; D006085:Graft Survival; D006801:Humans; D008297:Male; D008875:Middle Aged; D011182:Postoperative Care / Q000379:methods*; D011446:Prospective Studies; D011468:Prostatectomy / Q000379:methods*; D011471:Prostatic Neoplasms / Q000601:surgery*; D011859:Radiography; D013529:Surgical Wound Dehiscence / Q000000981:diagnostic imaging; D014463:Ultrasonography; D014521:Urethra / Q000000981:diagnostic imaging* / Q000601:surgery; D014525:Urethral Stricture / Q000517:prevention & control; D001743:Urinary Bladder / Q000000981:diagnostic imaging* / Q000601:surgery; D014546:Urinary Catheterization