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KMID : 0857019990140010035
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Kosin Medical Journal
1999 Volume.14 No. 1 p.35 ~ p.42
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Early Diagnosis of Diabetic Neuropathy by Median Nerve Sensory Conduction Study
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Jeong Ho-Joong
Kim Ghi-Chan
Jun Po-Sung
Jeong Sang-Wook
Kim Kang-Ryune
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Abstract
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Background : To evaluate the diagnostic value of median sensory nerve conduction study in early phase of diabetic neuropathy.
Methods : The onset latency, duration, peak amplitude, and area of sensory nerve action potential (SNAP) of median nerve stimulated at wrist and elbow, respectively on 20 normal adults and 20 diabetic patients who revealed normal findings in conventional electrodiagnostic procedure were checked and compared.
Results : 1) The onset latency, peak amplitude, and area of SNAP stimulated at wrist of diabetic patients were significantly different than those of control group (p<0.05). 2) The conduction velocity, peak amplitude, and area of SNAP stimulated at elbow of diabetic patients were significantly different than those of control group (p<0.05). 3) The amplitude of SNAP stimulated at elbow on diabetic patient was most accurate parameter and next, the amplitude of median sensory nerve action potential stimulated at wrist.
Conclusion : The amplitude of median sensory nerve action potential stimulated at elbow are good quantitative indices of diabetic neuropathy who revealed normal findings in conventional electrodiagnostic procedure with positive neurologic symptom and physical examination.
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KEYWORD
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diabetic neuropathy, median nerve sensory conduction study, amplitude
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