Pudendal nerve somatosensory evoked potentials in patients with voiding and/or erectile dysfunction: correlating test results with clinical findings.
OBJECTIVE
We evaluated the diagnostic efficacy of pudendal nerve somatosensory evoked potential testing in patients with voiding and/or erectile dysfunction.


METHODS
A total of 55 consecutive patients with voiding and/or erectile dysfunction underwent pudendal nerve somatosensory evoked potential testing during a 2.5-year period. P1 latencies were analyzed in terms of neurological history and neurological physical examination.


RESULTS
Abnormal P1 latencies were noted in 46.7% of patients with a positive neurological history (p = 0.0060), 52.4% with a positive neurological physical examination (p = 0.0580), and 64.7% with a positive history and physical examination (p = 0.0007). No patient with a negative neurological history had abnormal P1 latencies.


CONCLUSIONS
Positive neurological history and physical examination findings in patients with voiding and/or erectile dysfunction correlate significantly with abnormal pudendal nerve somatosensory evoked potential latencies. The subgroup of patients with a positive neurological history and physical examination has the greatest diagnostic yield and is best suited for pudendal nerve somatosensory evoked potential testing.
Klausner
A P
AP
Department of Urology, State University of New York Health Science Center at Syracuse, USA.
Batra
A K
AK
D000328:Adult; D007172:Erectile Dysfunction / Q000175:diagnosis* / Q000503:physiopathology; D005073:Evoked Potentials, Somatosensory / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010502:Perineum / Q000294:innervation; D011930:Reaction Time; D012189:Retrospective Studies; D014555:Urination Disorders / Q000175:diagnosis* / Q000503:physiopathology