title: Prospective urodynamic model for prediction of urinary incontinence after robot-assisted radical prostatectomy.
abstract: OBJECTIVE
  To assess the preoperative urodynamic predictors of urinary incontinence (UI) 1 year after robot-assisted radical prostatectomy (RARP) and to design a nomogram capable of predicting its occurrence.
  
  
  METHODS
  Our prospective study included 58 previously continent patients who underwent RARP, in most cases, bilateral nerve-sparing and bladder neck preservation. A urodynamic examination including a urethral pressure profile was performed preoperatively. Multivariate analysis was used to assess the predictors for the need to use 1 or more pads/day and a nomogram was constructed.
  
  
  RESULTS
  There was a 20.6% incidence of UI at 1 year after RARP. Bladder compliance, maximum urethral closure pressure and the development of bladder outlet obstruction, correlated well with the incidence of UI on the multivariate analysis (p = 0.043, 0.001, and 0.05, respectively).
  
  
  CONCLUSIONS
  Bladder compliance <27.8 ml/cm H2O, maximum urethral closure pressure <50.3 cm H2O and the bladder outlet obstruction are independent urodynamic factors correlating with UI after RARP. The new nomogram can objectively predict a patient likelihood of requiring 1 or more pads/day 1 year after RARP with a good accuracy.
authors: Department of Urology, Carlos Haya Hospital, Malaga, Spain.
authors: Ovidiu-Spiru
authors: OS
authors: Barnoiu
authors: Emilio
authors: E
authors: Garcia Galisteo
authors: Francisco
authors: F
authors: Baron Lopez
authors: Raul
authors: R
authors: Vozmediano Chicharro
authors: Jorge
authors: J
authors: Soler Martinez
authors: Jose Maria
authors: JM
authors: Del Rosal Samaniego
authors: Javier
authors: J
authors: Machuca Santacruz
authors: Victor
authors: V
authors: Baena Gonzalez
mesh_terms: D000368:Aged; D003661:Decision Support Techniques; D006801:Humans; D016496:Incontinence Pads; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D049451:Nomograms; D011237:Predictive Value of Tests; D011300:Preoperative Care; D011312:Pressure; D011446:Prospective Studies; D011468:Prostatectomy / Q000009:adverse effects* / Q000379:methods; D018570:Risk Assessment; D012307:Risk Factors; D012371:Robotics; D025321:Surgery, Computer-Assisted / Q000009:adverse effects*; D016896:Treatment Outcome; D014521:Urethra / Q000503:physiopathology*; D001743:Urinary Bladder / Q000503:physiopathology; D014549:Urinary Incontinence / Q000209:etiology* / Q000503:physiopathology / Q000628:therapy; D014563:Urodynamics