title: Association between the bladder wall thickness and urodynamic findings in patients with spinal cord injury.
abstract: OBJECTIVE
  To investigate whether ultrasonographic bladder wall thickness (BWT) correlates with urodynamic parameters in patients with spinal cord injury (SCI).
  
  
  METHODS
  Two hundred and seventy-two patients with SCI were enrolled in the study. All of the patients underwent bladder ultrasonography and urodynamic study. The anterior bladder wall was measured and compared to urodynamic data.
  
  
  RESULTS
  The mean age of the patients was 37.4 years. The mean BWT was 3.9 mm. BWT was significantly higher in the patients with neurogenic detrusor overactivity associated with detrusor sphincter dyssynergia (NDO/DSD) compared to those without sphincter dyssynergia (4.2 vs. 3.6 mm, respectively, p < 0.001) and in those with compliance <20 ml/cm H2O. Nevertheless, ROC curve analysis [ROC = 0.624, 95 % CI (0.530, 0.718), p = 0.011] showed that no meaningful BWT measurement cutoff could be made to predict an elevated detrusor pressure in the storage phase.
  
  
  CONCLUSIONS
  Increased BWT was present in patients with low bladder compliance and NDO/DSD. No BWT cutoff value to predict an elevated detrusor pressure was found. Therefore, the measurement of BWT has no clinical role in patients with SCI and cannot replace urodynamic evaluation.
authors.affiliation: State University of Rio de Janeiro, Rio de Janeiro, Brazil, urocentre@hotmail.com.
authors.forename: Jose Ailton Fernandes
authors.initials: JA
authors.lastname: Silva
authors.forename: Marcia de Castro Diniz
authors.initials: Mde C
authors.lastname: Gonsalves
authors.forename: Rogerio Teles
authors.initials: RT
authors.lastname: de Melo
authors.forename: Fabricio Borges
authors.initials: FB
authors.lastname: Carrerette
authors.forename: Ronaldo
authors.initials: R
authors.lastname: Damião
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010264:Paraplegia / Q000000981:diagnostic imaging / Q000209:etiology / Q000503:physiopathology; D011237:Predictive Value of Tests; D011782:Quadriplegia / Q000000981:diagnostic imaging / Q000209:etiology / Q000503:physiopathology; D012372:ROC Curve; D013119:Spinal Cord Injuries / Q000150:complications* / Q000000981:diagnostic imaging / Q000503:physiopathology; D014463:Ultrasonography; D001750:Urinary Bladder, Neurogenic / Q000000981:diagnostic imaging* / Q000209:etiology / Q000503:physiopathology*; D053201:Urinary Bladder, Overactive / Q000000981:diagnostic imaging* / Q000209:etiology / Q000503:physiopathology*; D014563:Urodynamics / Q000502:physiology*; D055815:Young Adult