Abstract
We evaluated the urodynamic features of enuretic and continent patients with an orthotopic neobladder. Included in our study were 100 men with an orthotopic hemi-Kock or W neobladder and a minimum followup of 1 year. Of the patients 50 were completely continent day and night, and 50 had enuresis without evidence of an underlying organic etiology, such as stones, reflux or urethral stricture. Univariate analysis showed significantly higher pressure and a larger volume of post-void residual urine in the men with enuresis. In addition, maximum urethral pressure, maximum flow and compliance were decreased in the enuretic group compared to the continent group. Multivariate analysis revealed that post-void residual urine volume, frequency and maximum amplitude of uninhibited contractions are the most critical parameters affecting nocturnal continence. The cystometric parameters significantly associated with nocturnal enuresis in patients with an orthotopic reservoir are post-void residual urine volume, frequency and maximum amplitude of uninhibited contractions. Urethral pressure and flow parameters did not sustain significance on multivariate analysis.
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