title: Electrodiagnostic study in delayed facial palsy after closed head injury.
abstract: The time course of electrical reactions in this condition varied much from that after section of the facial nerve or after Bell's palsy. It was at least a week before denervation could be suspected in the latter conditions by electrodiagnostic methods. In post-traumatic delayed facial palsy we have demonstrated electrical reactions showing denervation at the time of palsy or even a few days before, and this is probably related to its pathogenesis. Denervation occurred in 82% of cases which is about double the incidence in Bell's palsy.
mesh_terms: D006259:Craniocerebral Trauma / Q000150:complications*; D004568:Electrodiagnosis; D005071:Evoked Potentials; D005158:Facial Paralysis / Q000175:diagnosis* / Q000209:etiology / Q000503:physiopathology; D006801:Humans; D008722:Methods; D009431:Neural Conduction; D011930:Reaction Time