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  • Title: [The variability of the leakage pressure threshold due to exertion "the Valsalva Leak Point Pressure" as a function of the filling volume of the bladder].
    Author: Haab F, Dmochowski R, Zimmern P, Leach GE.
    Journal: Prog Urol; 1997 Jun; 7(3):422-5. PubMed ID: 9273070.
    Abstract:
    OBJECTIVE: To determine the influence of the bladder filling volume on the Valsalva Leak Point Pressure (VLPP) in patients investigated for urinary stress incontinence. PATIENTS AND METHODS: 50 patients investigated for urinary stress incontinence were included in this prospective study. Evaluation consisted of clinical examination, urodynamic examination with simultaneous fluoroscopic assessment and cystoscopy. VLPP was measured while standing every 100 cc during filling until the cystomanometric bladder capacity. RESULTS: We observed a significant reduction of VLPP as a function of bladder filling volume. The VLPP measured at 200 cc constituted the reference value in view of its sensitivity and specificity for the diagnosis of type III urinary stress incontinence (Blaivas' classification). CONCLUSION: Measurement of VLPP must be standardized and interpreted as a function of bladder filling volume.
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