Sacral neuromodulation is a well-excepted minimally invasive procedure for the treatment of overactive bladder and non-obstructive urinary retention.A tined lead with 4 stimulation electrodes is placed through the third or fourth sacral foramen and stimulates sacral roots in its vicinity. Since the sacral roots are mixed nerves, it is currently still unknown which nerve fibers are stimulated (autonomic vs somatic, afferent vs efferent) and what the mechanism of action is. This study examines the involvement of pudendal somatic afferents by measuring somatosensory evoked potentials elicited by stimulation of the pudendal nerve.
Study Type
OBSERVATIONAL
Enrollment
40
Stimulation of the pudendal nerve while recording at the sensory cortex.
Antwerp University Hospital
Edegem, Antwerp, Belgium
RECRUITINGLatency change
Latency of somatosensory evoked potential are recorded before and after test procedure sacral neuromodulation expressed in milliseconds.
Time frame: 3 weeks
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