Resumen

QUINTERO, F. et al. Evaluation of urodynamic parameters following the placement of tension-free tape. Actas Urol Esp [online]. 2011, vol.35, n.4, pp.208-212. ISSN 0210-4806.

Objective: To analyse the urodynamic changes subsequent to the placement of TVT tension-free tape (retropubic tension-free vaginal tape) or TVT-O (obturator tension-free vaginal tape). Materials and methods: We carried out a retrospective cohort study that included women with urodynamic diagnosis of stress incontinence, in whom we placed type TVT or TVT-O tension-free tape, and on whom we performed a urodynamic study one year later. We calculated the size of the sample based on the area of continence and it consisted of 15 women per group. We included 40 women. 22 had TVT placed and 18 had TVT-O. We carried out the trial between February 1999 and March 2009. We analysed the means of the pre and postoperative urodynamic parameters using the Student's t-test for dependent variables. Results: We noted an average decrease in the maximum flow of 9ml/ s following the placement of the TVT-O (p=0.05). For the TVT group, we noted an increase in the flow and micturition times of 5.3 and 6seconds, as well as in the detrusor pressure at the maximum flow of 6.2cm H₂O and of the maximum detrusor pressure when voiding, of 8cm H₂O (p=0.37, 0.47, 0.21 and 0.12, respectively). Conclusions: In women with urodynamic stress incontinence, the maximum flow decreased a year after the TVT-O was placed.

Palabras clave : Stress urinary incontinence; Urodynamic; Suburethral tape.

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