title: [Evaluation of electromyography of the corpora cavernosa (single potential analysis of cavernous electric activity--SPACE) as a technique for studying impotence].
abstract: OBJECTIVE
  To analyze the utility of data obtained by single potential analysis of cavernous electric activity (SPACE) in the study of impotence.
  
  
  METHODS
  127 patients with impotence were evaluated by neuroandrologic profile, SPACE, erection test post intracavernous injection of papaverine-phentolamine and a cystometrogram (CMG).
  
  
  RESULTS
  The quantitative characteristics (duration, amplitude, number of phases) of the SPACE potentials were not useful in distinguishing between the different types of impotence. The qualitative characteristics (degree of activity, morphology, synchrony and coordination) during erection were significantly different between the non-neurogenic and neurogenic impotence. Significant differences were found in the qualitative characteristics (synchrony and coordination during erection) between patients with no demonstration of organic impotence and those with a negative erection test and no alterations in the neuroandrologic profile (vascular impotence). No relationship was found between the degree of activity of the SPACE and the presence or absence of voiding reflex in the CMG.
  
  
  CONCLUSIONS
  SPACE is a useful technique in the study of impotence, although the interpretation of the data are more qualitative than quantitative. The CMG provides complementary data and should therefore continue to be included in the study of the neuroandrologic profile in impotence.
authors.affiliation: Servicio de Urología, Hospital Universitario San Carlos, Universidad Complutense, Madrid, España.
authors.forename: J
authors.initials: J
authors.lastname: Salinas Casado
authors.forename: M
authors.initials: M
authors.lastname: Vírseda Chamorro
authors.forename: R
authors.initials: R
authors.lastname: Samblas García
authors.forename: M
authors.initials: M
authors.lastname: Esteban Fuertes
authors.forename: J M
authors.initials: JM
authors.lastname: Aristizábal Agudelo
authors.forename: J
authors.initials: J
authors.lastname: Blázquez Izquierdo
authors.forename: J A
authors.initials: JA
authors.lastname: Delgado Martín
authors.forename: L
authors.initials: L
authors.lastname: Resel Estévez
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D004576:Electromyography / Q000379:methods*; D007172:Erectile Dysfunction / Q000175:diagnosis / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010208:Papaverine / Q000494:pharmacology; D010410:Penile Erection / Q000187:drug effects / Q000502:physiology; D010413:Penis / Q000294:innervation*; D010646:Phentolamine / Q000494:pharmacology; D014665:Vasodilator Agents / Q000494:pharmacology
chemical_list: D014665:Vasodilator Agents; D010208:Papaverine; D010646:Phentolamine