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  • Title: Vardenafil improves urodynamic parameters in men with spinal cord injury: results from a single dose, pilot study.
    Author: Gacci M, Del Popolo G, Macchiarella A, Celso M, Vittori G, Lapini A, Serni S, Sandner P, Maggi M, Carini M.
    Journal: J Urol; 2007 Nov; 178(5):2040-3; discussion 2044. PubMed ID: 17869296.
    Abstract:
    PURPOSE: We assessed urodynamic changes after vardenafil administration in spinal cord injured male patients on oxybutynin treatment. MATERIALS AND METHODS: We performed a single center, randomized, double-blind, placebo controlled trial in 25 patients with spinal cord injury who had erectile dysfunction and micturition disorders. A baseline urodynamic test was performed as well as a second urodynamic test 1 to 3 hours after the administration of 20 mg vardenafil and placebo in 15 and 10 cases, respectively. In all patients standard oral oxybutynin administration was not discontinued. Statistical assessment included the 3 urodynamic parameters maximum detrusor pressure during voiding, maximum cystometric capacity and detrusor overactivity volume. RESULTS: Placebo administration did not affect urodynamic parameters. After vardenafil administration maximum detrusor pressure was significantly decreased (59.3 vs 52.1 cm H(2)O, p <0.001) and maximum cystometric capacity considerably improved (233.5 vs 272 ml, p <0.001). The most dramatic variations were observed for detrusor overactivity volume (174 vs 218 ml, p <0.0001). In 7 patients with American Spinal Injury Association classification A and spinal cord injury above T6 we observed the most significant improvement in the evaluated urodynamic items, including maximum detrusor pressure 57 vs 52 cm H(2)O (p = 0.039), maximum cystometric capacity 253 vs 296 ml (p = 0.004) and detrusor overactivity volume 177 vs 229 ml (p = 0.003). CONCLUSIONS: This trial demonstrates that in spinal cord injured patients a single 20 mg vardenafil administration achieved a significant decrease in maximum detrusor pressure, an improvement in maximum cystometric capacity and a remarkable increase in detrusor overactivity volume value.
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