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  • Title: [Pressure-flow studies in the diagnosis of micturition disorders in the female].
    Author: Vírseda Chamorro M, Teba Del Pino F, Salinas Casado J, Fernández Lucas C, Arredondo Martínez F.
    Journal: Arch Esp Urol; 1998 Dec; 51(10):1021-8. PubMed ID: 9951125.
    Abstract:
    OBJECTIVE: To determine the utility of the pressure-flow studies in the diagnosis of voiding dysfunction in women. METHODS: A case-control study was conducted on 80 women. These subjects were divided into two groups: 24 controls with a maximum flow percentile greater than or equal to 50 and no residual volume, and 56 cases with a maximum flow percentile less than or equal to 10. The clinically and statistically significant parameters of the pressure-flow study were entered into a multiple regression logistic equation as explanation variables of voiding dysfunction. RESULTS: The clinical variables that influenced voiding dysfunction were age and the presence of stress urinary incontinence. The urethral resistance average (URA) was found to be the only significant urodynamic parameter. Patients with stress urinary incontinence showed a lower probability of voiding dysfunction. Age and URA directly correlated with the probability of voiding dysfunction. CONCLUSIONS: The URA was found to be the only significant urodynamic parameter. The contractility parameters [power at maximum flow (Pw) and maximum power per bladder unit surface (Wmax)] were not found to be useful as detrusor contractility index in women.
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