Evoked electromyogram as a function of facial nerve.
Compound muscle action potentials were recorded bilaterally from alae nasi muscles following stimulation of facial nerve in 45 normal subjects in the age group of 20-30 years. Latency, amplitude and total duration of the compound muscle action potential were compared on both sides. A significant positive correlation between the three parameters with the highest for the amplitude was observed. Therefore it is suggested that amplitude is a better parameter for comparison while testing for side to side facial nerve integrity.
Roopakala
M S
MS
Department of Physiology, M.S. Ramaiah Medical College and Teaching Hospital, Bangalore.
Singh
Harmeet
H
Kanaka
Rani
R
Sharma
Rajeev
R
Ravindra
Savitha
S
D000200:Action Potentials / Q000502:physiology*; D000328:Adult; D000704:Analysis of Variance; D004576:Electromyography / Q000379:methods; D005152:Facial Muscles / Q000502:physiology*; D005154:Facial Nerve / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D011930:Reaction Time / Q000502:physiology