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KMID : 0352519800170010359
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Korea Univercity Medical Journal
1980 Volume.17 No. 1 p.359 ~ p.365
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A Study on the Sensory Nerve Conduction Velocity of Musculocutaneous Nerve in Healthy Korean
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Abstract
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It is obvious that the examination of nerve conduction as a diagnostic aid is a relatively new field of interest with the state of the art still undergoing evaluation and improvement. This is true particularly in sensory action potential recording.
Conduction study of sensory branch of the musculocutancous nerve, the lateral cutaneous nerve of the forearm was performed with an antidromic technique. Surface stimulation was done at the elbow where the nerve becomes superficial, and surface recordings were made 12 cm distally over the course of the nerve.
140 nerves in 70 normal persons were examined. The results were summarized as follows:
1. The sensory conduction velocity of lateral cutaneous nerve of the forearm, a branch of the musculocutaneous nerve was 61.867.16 meters/sec.
2. The mean value of the latency to the peak of the negative phase was 1.970.22 msec, and to onset of the action potential was 1.450.24 msec.
3. The amplitude of the action potential was 27.0916.72 V.
4. The mean value of the duration of the action potential was 0.830.24 msec.
5. No statistical variation was noted with advancing age in sensory conduction velocity, latencies, amplitude and duration of the evoked potential.
6. There were no significant differences related to the dominance of the extremities.
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