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  • Title: [Clinical electrophysiological studies of peroneal muscular atrophy--report of 32 cases].
    Author: Cui LY.
    Journal: Zhongguo Yi Xue Ke Xue Yuan Xue Bao; 1989 Jun; 11(3):175-9. PubMed ID: 2529984.
    Abstract:
    Clinical, electromyography (EMG) and nerve conduction velocity (NCV) features of 32 cases with peroneal muscular atrophy (PMA) are reported. Twenty of the cases showed remarkably slow NCV: median SNCV (Fing 1-W) X = 21.0 m/s, (Fing 3-W) X = 22.7 m/s, motor latency (ML) X = 7.3 ms; tibial SNCV (hallux-ankle) X = 22.2 m/s and ML = X = 8.1 ms, which were consistent with Type 1 PMA. Twelve cases showed normal or moderately slow NCV: median SNCV (Fing 1-W) X = 41.9 m/s, (Fing 3-W) X = 47.0 m/s and ML X = 3.2 ms; tibial SNCV (halluxankle) X = 32.5 m/s and ML X = 4.8 ms which were consistent with Type 2 PMA. The difference between these two groups was very significant (P less than 0.01). Sural nerve biopsy performed in 6 cases showed that 5 corresponded with NCV classification. We conclude that careful NCV examination is necessary for classification of PMA.
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