Correlation of bladder base elevation with pelvic floor hypertonicity in women with lower urinary tract symptoms
ABSTRACT To determine whether the bladder base elevation as revealed by cystogram under fluoroscopy is associated with pelvic floor hypertonicity or bladder outlet obstruction (BOO) in women.
Sixty-two women who were referred to our videourodynamic laboratory for assessment of lower urinary tract symptoms (LUTS) were included in this retrospective analysis. Thirty-one of these women with bladder base elevation-revealed by cystogram under fluoroscopy during videourodynamic study-served as the experimental group, and another group of 31 women without bladder base elevation served as control. None of the patients had neuropathy, previous pelvic surgery or chronic urinary retention. The clinical symptoms, urodynamic diagnosis, and parameters were compared between the two groups.
The mean voiding pressure (Pdet.Qmax) and postvoid residual (PVR) were significantly greater, and maximum flow rate (Qmax) and voided volume were significantly lower in the bladder base elevation group. When a Pdet.Qmax of >or=35 cmH2O combined with a Qmax of <or=15 ml/sec in pressure flow study was used to diagnose BOO, significantly more patients in the bladder base elevation group had BOO than controls (51.6% vs. 9.7%, P=0.0003). Pelvic floor muscle electromyogram (EMG) was dyscoordinated during the voiding phase in 18 (58.1%) and 9 (29%) of the patients with and without bladder base elevation, respectively (P=0.0212).
Women with LUTS and bladder base elevation revealed in the filling phase of videourodynamic study had significantly higher voiding pressure and incidence of dyscoordinated pelvic floor EMG activities during voiding, suggesting a higher incidence of BOO and pelvic floor hypertonicity.
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ABSTRACT: To determine the prevalence of dysfunctional voiding (DV) in female stress urinary incontinence (SUI) and its modification after tension-free vaginal tape (TVT) procedure. Three hundred and sixty women with SUI were enrolled and underwent urodynamics from 2002 to 2008. DV was determined when non-neurogenic detrusor-sphincter dyssynergia occurred during voluntary voiding. It was further quantitatively analyzed using the tense/loose value, a parameter derived from external anal sphincter electromyogram. The distribution of other urodynamic variables was also evaluated. One hundred and fifty patients underwent the TVT procedure and forty of them were studied with urodynamics after surgery during follow up. Overall, DV was diagnosed in ninety-nine patients, with a prevalence of 27.5%. The functional profile length in SUI women with DV was significantly shorter than that in SUI women without DV (3.13 +/- 0.76 vs 3.32 +/- 0.65, P = 0.017). After the TVT procedure, the recovery of SUI between cases with and without DV showed no significant difference. The rate of DV state change after the surgery, namely from with to without DV or from without to with DV, significantly differed between the female patients with and without DV (66.7% vs 3.6%, P < 0.05) during follow up. The DV improved after the surgery in SUI women with DV. DV might represent a coexistent finding in women with SUI. The main difference of women with SUI and DV, as compared with those without DV, is a shortened functional profile length. In such cases, TVT procedure can improve DV along with the treatment of SUI.International Journal of Urology 03/2010; 17(4):346-52. DOI:10.1111/j.1442-2042.2010.02467.x · 1.80 Impact Factor