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KMID : 0361419930170040557
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Journal of Korean Academy of Rehabilitation Medicine
1993 Volume.17 No. 4 p.557 ~ p.562
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Median and Ulnar Motor and Sensory Conduction Studies in the Same Normal Subjects
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Abstract
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Motor and sensory nerve action potentials of the median and ulnar nerves were studied in 40 normal subjects. The distal latency, amplitude and area were compared between the two nerves of the same healthy subject. Regarding motor conduction
study,
the
distal latency and amplitude ratio of the median to ulnar nerve were 1.26 and 1.03, repectively. The amplitude and area of the median sensory nerve action potentials were significantly larger than those of the ulnar nerve, and the distal latency
and
amplitude ratio of the median to ulnar sensory action potential were 0.98 and 1.23, respectively. The difference of the sensory distal latency was -0.06msec.
A comparison of the parameters between median and ulnar nerve conduction study can be used in the diagnosis of the carpal tunnel syndrome and is particulary useful in those patients who show normal median motor and sensory latency.
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KEYWORD
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