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Archivos Españoles de Urología (Ed. impresa)

Print version ISSN 0004-0614


SALINAS, Jesús et al. Prevalence of urodynamic anomalies in women with urinary tract infection. Arch. Esp. Urol. [online]. 2007, vol.60, n.10, pp.1179-1188. ISSN 0004-0614.

Objectives: To check the urodynamic data in patients with recurrent urinary tract infection in order to demonstrate a cause justifying them. Methods: We performed a transverse comparative study in a series of 114 women, with a mean age of 51.9 yr. (typical deviation: 23.5 yr.), divided into groups of 57 women each: group I with recurrent urinary tract infection (UTI) and group II without recurrent urinary tract infection (no UTI). Patients underwent history , physical examination, and video-urodynamic study. All data were collected in an Access database and subsequently imported to the SPSS statistical analysis software. Fisher's exact test, Pearson'fs chi-square, and Student's t-test were applied. ROC curve was calculated. A logistic regression multivalue model was elaborated. Results: significant differences were only found in the values of maximum voiding flow (lower in the UTI group), post void residual volume (greater in the UTI group), and pressure of the involuntary detrusor contraction (lower in the UTI group). Nevertheless, post void residual was the only independent variable, becoming the other two dependent variables. The ideal cut point between post void residual and urinary tract infection was 48.5 ml. The determination coefficient for the model was 0.13. No significant relationships were found between urinary tract infection and, among others, presence and degree of cystocele, detrusor hyperactivity, and stress urinary incontinence. Conclusiones: Postvoid residual would explain 13% of the recurrent urinary tract infection in women. The remainder would be secondary to other factors not included in the model.

Keywords : Urodynamics; Recurrent urinary tract infection; Female.

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