Quantitative Analysis of Phasic Electro-myograms in Diabetic Patients.

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  • OGAWA Michiko
    First Department of Internal Medicine, Kansai Medical University

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  • 糖尿病患者における筋電図波形の定量的分析
  • トウニョウビョウ カンジャ ニ オケル キンデンズ ハケイ ノ テイリョウテキ

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Reported: Analyses of the EMG activities in diabetic patients were done with an ATAC 501-20 type computer and compared with the neurological findings in those patients by means of a grading system. The resnits were as follows:<BR>1) Every diabetic patient was found to have a more or less abnormal EMG; even a patient displaying no neuropathy or no remarkable change on a routine EMG would present abnormal patterns on his amplitude and interval histograms.<BR>2) The muscle groups affected were in the following frequency order: M. gastrocnemius)M. quadriceps femoris>M. tibialis ant.>M. biceps brachii>M. triceps brachii.>M. flexor carpi. ul.>Ist M. interossei.<BR>3) The types of the histogr ams, obtained by author's method, were in the following frequency order: P-type>N-type>P+M-type>M-type.<BR>4) Some correla tions were observed between the EMGs and clinical neurological findings.<BR>5) The sum total of the grades given on the amplitude and interval histograms and those given on the neurological signs appeared to be a reasonable parameter for the severity of neurological disorders in diabetic patients.<BR>Although affected by blood sugar level and disease duration, the correlation between diabetic neuropathy and aging was found to be high, especially over the age of fifty.

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