The role of somatosensory evoked potentials in prognosis of efficacy of tibial neuromodulation in patients with hyperactive urinary bladder


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Resumo

Registration of evoked brain potentials was used as a non-invasive and an objective method of diagnosis of the CNS diseases. Somatosensory evoked potentials (SSEP) in response to stimulation of the tibial nerve were studied in patients with hyperactive urinary bladder (HUB) to clarify SSEP role in prognosis of tibial neuromodulation (TNM) efficacy. Urodynamic parameters and SSEP were examined in 13 patients with symptoms of urinary accumulation disorders. Neurogenic HUB was diagnosed in 6 patients, idiopathic one - in 7 patients. TNM was delivered in 30-min weekly sessions (n = 12). Six of seven patients with a cortical potential responded to TNM. Of six cortical nonresponders a positive result was achieved only in two. Thus, patients with the cortical potential demonstrate better effect of TNM than those without the potential. It is suggested that TNM influences both sacral and supraspinal center of urination.

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