Urodynamic assessment of bladder and urethral sphincter function before and after robot-assisted radical prostatectomy.
INTRODUCTION
Affectation of the bladder after open prostatectomy is demonstrated. Decrease in bladder capacity and bladder compliance, detrusor hyper-or hypo-activity and voiding dysfunction are observed. We propose to investigate the effects of robotic surgery on bladder and sphincter function through the comparative study of preoperative and postoperative urodynamic values 3 months after prostatectomy.


MATERIAL AND METHODS
Prospective study of 32 consecutive patients undergoing robotic prostatectomy. They all underwent urodynamic study one month before the intervention and 3 months after the radical prostatectomy.


RESULTS
Twenty five percent of patients undergoing robotic prostatectomy showed detrusor hyperactivity accompanied by a decrease in bladder compliance of 30.2 to 21.8 ml/cmH2O. Urethral profile showed diminished functional length of 67 to 44 mm and decreased maximum urethral pressure of 48.5 to 29.3 cmH2O. After robotic prostatectomy 21.8% of patients had detrusor hypoactivity, obstruction decreased between 28.1% to 12.5%.


CONCLUSIONS
Decreased bladder compliance, detrusor hypo- or hyperactivity and obstruction improvement observed in the study of the flow pressure have been associated with sphincter involvement. It is part of the complex of lower urinary tract dysfunction that occurs after robotic prostatectomy.
['Barnoiu|O S|OS|', 'Vozmediano-Chicharro|R|R|', 'García-Galisteo|E|E|', 'Soler-Martinez|J|J|', 'del Rosa-Samaniego|J M|JM|', 'Machuca-Santacruz|J|J|', 'Baena-Gonzalez|V|V|']
D000368:Aged D006801:Humans D008297:Male D008875:Middle Aged D059035:Perioperative Period D011446:Prospective Studies D011468:Prostatectomy D065287:Robotic Surgical Procedures D013997:Time Factors D014521:Urethra D001743:Urinary Bladder D014563:Urodynamics
Voiding dysfunction Urodynamic study Bladder dysfunction Disfunción de vaciado Disfunción vesical Estudio urodinámico Incontinencia urinaria Prostatectomía radical asistida por robot Robot-assisted prostatectomy Urinary incontinence