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KMID : 0378019740170040457
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New Medical Journal
1974 Volume.17 No. 4 p.457 ~ p.460
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Electrodiagnostic Studies in Facial Paralysis
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Abstract
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Thirty-one cases of facial paralysis were referred to the Electromyography Laboratory of Severance Hospital between Feb., 1972 and Mar., 1973. There were eighteen males and thirteen females. The age incidence was between one and sixty-one years and most common between twenty-one and forty. Idiopathic Bell´s palsy was the most common entity producing facial paralysis in our series and next was trauma. Thirteen cases were examined within two months after paralysis by electrodiagnostic method.
Measurements of distal latency revealed an average of 3.9 msec. for normal Frontal m, 8.3 msec. for paralysed Frontal m, 3.5 msec. for normal Orbicularis oris m, and 6.2 msec. for paralysed Orbicularis oris m. Five cases of Frontalis m and four cases of Orbicularis oris m had no response to the electrical stimulation.
On electromyography results were as follows:
normal Partial complete
denervation denervation
Frontalis m 6 17 8
Orbicularis oris m 5 21 5
All were treated by electrcal stimulation, massage, and therapeutic exercise after hot packs. Degree of paralysis and state of recovery for each branch of facial n was assumned by distal latency measurement and electromyography. Patients with partial denervation and slightly delayed distallatency had a better prognosis.
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