Magnetic stimulation of the pudendal nerve.
Electroneurography of the pudendal nerve is extremely important in the diagnosis of neurogenic fecal incontinence and a pudendal canal syndrome.


OBJECTIVE
The aim of this study was to determine pudendal nerve motor latency of the overall distance by stimulation of nerve root S3 by discharging a magnetic coil.


METHODS
This can be achieved by positioning an earth electrode between the site of stimulation and the registration electrode. We investigated 18 volunteers by this method.


RESULTS
The average latency period was 2.51 milliseconds (SD = 0.32) on the right and 2.49 milliseconds (SD = 0.33) on the left side.


CONCLUSIONS
This method enables precise diagnosis in neuropathies of the pudendal nerve more so than with conventional electric stimulation.
Department of Neurology, University of Saarland, Homburg, Germany.
W H
WH
Jost
K
K
Schimrigk
D000328:Adult; D001003:Anal Canal / Q000294:innervation / Q000502:physiology*; D004558:Electric Stimulation; D005073:Evoked Potentials, Somatosensory / Q000502:physiology; D005260:Female; D006801:Humans; D008280:Magnetics; D008297:Male; D008875:Middle Aged; D009043:Motor Activity / Q000502:physiology; D009119:Muscle Contraction / Q000502:physiology; D011930:Reaction Time / Q000502:physiology