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42 Possible Causes for EMG Shows Chronic Denervation

  • Jankovic Rivera Syndrome

    Electromyography (EMG) shows a chronic denervation process while muscle biopsy shows neurogenic atrophy, although there are no changes suggestive of a mitochondrial disorder[jle.com]

  • Distal Hereditary Motor Neuropathy

    Concentric needle EMG showed evidence of chronic denervation in distal muscles.[ncbi.nlm.nih.gov]

  • Dravet Syndrome

    Nerve conduction study was normal or nearly normal in all patients, but EMG showed features of chronic denervation.[ncbi.nlm.nih.gov]

  • Monomelic Amyotrophy

    Electromyography (EMG) showed chronic denervation in the C7-T1 myotomes.[annalsofian.org] Electrophysiological studies (NCS and EMG) are an essential part of the diagnostic process, showing mostly chronic denervation changes in affected muscles, with or without[jmedicalcasereports.biomedcentral.com] […] and chronic renervation potentials showed nearly symmetric involvement between right and left 12. discussion • In this series of 106 patients nearly 10% showed symmetric[slideshare.net]

  • Myelitis

    Repeat EMG/NCS was performed on 4 children a median of 8 months after onset and showed ongoing denervation and chronic reinnervation in 3 children with persistent deficits[ncbi.nlm.nih.gov] Repeat MRI was performed in 7 of 8 children a median of 7 months after onset and showed significant improvement or normalization in all but one child.[ncbi.nlm.nih.gov] EMG changes correlated with persistent deficits better than imaging. Despite improvements, AFM had substantial long-term functional effects on affected children.[ncbi.nlm.nih.gov]

  • Abetalipoproteinemia

    Motor conduction was normal, although EMG indicated subclinical signs of partial chronic denervation.[ncbi.nlm.nih.gov] The surely nerves showed a decreased number of large fibers ( 7 μm); in the patient with the neuropathy of shortest duration, small fibers and clusters of regenerating fibers[neurology.org] The sural nerves showed a decreased number of large fibers (greater than 7 micron); in the patient with the neuropathy of shortest duration, small fibers and clusters of regenerating[ncbi.nlm.nih.gov]

  • Distal Spinal Muscular Atrophy Type 3

    EMG showed signs of acute and chronic denervation in the affected muscles. Disease-specific MRI changes were detected in four patients.[digital.bibliothek.uni-halle.de]

  • Muscular Atrophy

    EMG showed signs of acute and chronic denervation in the affected muscles. Disease-specific MRI changes were detected in four patients.[digital.bibliothek.uni-halle.de]

  • Spinal Muscular Atrophy

    EMG showed signs of acute and chronic denervation in the affected muscles. Disease-specific MRI changes were detected in four patients.[digital.bibliothek.uni-halle.de]

  • Spinal and Bulbar Muscular Atrophy

    Needle EMG revealed a chronic partial denervation with reduced interference in hand and distal leg muscles but with normal heading in all tested proximal muscles.[ncbi.nlm.nih.gov] Genetic studied showed an expansion of CAG repeat in the first exon of the androgen receptor gene, which suggests diagnosis of X-SBMA.[ncbi.nlm.nih.gov]

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