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  • Title: Comparison of voiding parameters in men and women with lower urinary tract symptoms.
    Author: Ku JH, Oh SJ.
    Journal: Neurourol Urodyn; 2006; 25(1):13-8. PubMed ID: 16049917.
    Abstract:
    AIM: The aim of this study was to compare voiding parameters by using urodynamic investigations in men and women with lower urinary tract symptoms (LUTS). METHODS: A total of 164 individuals (76 men and 88 women) completed the International Prostate Symptom Score (IPSS) and underwent a detailed urodynamic investigation. Patients were stratified by voiding function, which included bladder voiding efficiency (BVE) of < 80% and of >or= 80%. RESULTS: IPSSs were similar in the men and women except for voiding symptoms for those with a BVE of >or= 80% (12 for men vs. 9 for women, P=0.016). When voiding parameters were compared according to BVE in men and women, respectively, maximum flow rate (Q(max)) (P=0.002), average flow rate (Q(ave)) (P=0.003), voided volume (P=0.037), post-void residual (PVR) (P<0.001), and bladder outlet obstruction index (P=0.016) were different for men with a BVE of < 80% and men with a BVE of >or= 80%. However, for women with a BVE of < 80% or >or= 80%, PVR (P<0.001), detrusor pressure at maximum flow rate (P=0.022), and opening detrusor pressure (P=0.024) were different. CONCLUSIONS: The voiding parameters of women differ from those of men according to voiding function. The present results show that a pressure-flow study may represent a difference according to BVE in women as well as in men. Our findings suggest that opening detrusor pressure in women reflects the urethral and detrusor during voiding phase accurately as detrusor pressure at maximum flow rate does.
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