Electrodiagnostic findings in the early stages of Bell's palsy and Ramsay-Hunt's syndrome.
The incidence of denervation, as determined electrodiagnostically (nerve excitability test and electroneuronography), was analysed during the course of the disease in 150 patients with Bell's palsy and 45 with Ramsay-Hunt's syndrome. Of all 150 patients, 14.2% of those with Bell's palsy and 44% of the patients with Ramsay-Hunt syndrome either showed denervation at the time of the initial examination or developed denervation from neurapraxia within 3 weeks after the onset of paralysis.
Kanzaki
J
J
Department of Otolaryngology, School of Medicine, Keio University, Tokyo, Japan.
D004568:Electrodiagnosis; D004576:Electromyography; D005154:Facial Nerve / Q000503:physiopathology*; D005158:Facial Paralysis / Q000175:diagnosis* / Q000503:physiopathology; D006562:Herpes Zoster / Q000175:diagnosis / Q000503:physiopathology; D006801:Humans; D009410:Nerve Degeneration; D009431:Neural Conduction; D011379:Prognosis; D013997:Time Factors