title: [Clinical and electrophysiological study of sensory penile alterations. A prospective study of 44 cases].
abstract: OBJECTIVE
  To precise clinical presentations, pathophysiology and etiologies of penile sensory alteration.
  
  
  METHODS
  Forty-four patients with penile sensory dysfunction underwent clinical and electrophysiological testing with electromyography of bulbocavernosus muscles, study of sacral reflex latencies, somatosensory cortical responses following stimulation of the dorsal nerve of the penis, sensory velocity of the dorsal nerve and pudendal nerve terminal sensory latencies.
  
  
  RESULTS
  Penile anesthesia was observed in six (13%) patients, loss of sensibility in 34 (77%), paresthesia in four (9%). Erectile dysfunction was noted in 19 (43%) patients, hypo-orgasmia in seven (16%), cold glans penis sensation in four and loss of spatial sensation during intercourse in three (7%). Abnormalities of electrophysiological perineal testing were observed in 17 (38%) patients. In 27 (62%) cases, no alteration of electrophysiological testing was observed. In 17 (38%) patients, a specific aetiology was founded by means nerve palsy during orthopedic surgery in five cases, entrapment neuropathy following byking in nine cases, two La Peyronie diseases and one diabetes mellitus.
  
  
  CONCLUSIONS
  In the current series, the prevalence of neuropathy of the dorsal nerve of the penis (that can determine a loss of sensibility) was 40%.
authors.affiliation: GRC 01 UPMC GREEN groupe de recherche clinique en neuro-urologie, service de neuro-urologie, hôpital Tenon, AP-HP, 4, rue de la Chine, 75020 Paris, France. Electronic address: gerard.amarenco@tnn.aphp.fr.
authors.forename: G
authors.initials: G
authors.lastname: Amarenco
authors.forename: S
authors.initials: S
authors.lastname: Sheikh Ismaël
authors.forename: D
authors.initials: D
authors.lastname: Verollet
authors.forename: F
authors.initials: F
authors.lastname: Le Breton
authors.forename: P
authors.initials: P
authors.lastname: Lacroix
authors.forename: M
authors.initials: M
authors.lastname: Fahed
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D004576:Electromyography / Q000379:methods*; D007172:Erectile Dysfunction / Q000175:diagnosis* / Q000453:epidemiology / Q000209:etiology / Q000503:physiopathology*; D005073:Evoked Potentials, Somatosensory; D005602:France / Q000453:epidemiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D010413:Penis / Q000294:innervation* / Q000503:physiopathology*; D015995:Prevalence; D011446:Prospective Studies; D011930:Reaction Time; D020127:Recovery of Function; D012307:Risk Factors
keywords: Dysérection; Electromyography; Erection; Penis; Sensibility; Trouble sensitif; Verge; Électromyographie