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71 Possible Causes for Compound Muscle Action Potential with Low Amplitude, Nerve Conduction Study showing Demyelination Pattern

  • Guillain-Barré Syndrome

    muscle action potentials reduced amplitude with relatively preserved conduction velocity implicates axonal neuropathy delayed/absent F waves implicates nerve root involvement[step2.medbullets.com] […] lymphocytic predominance) occurs in the late first week other CSF serologies typically normal Nerve conduction studies slowed conduction velocity reduced amplitude in compound[step2.medbullets.com] Spirometry to ensure adequate respiratory function intubate early if necessary Lumbar puncture albumin cytologic disassociation elevated protein mostly acellular (or with low[step2.medbullets.com]

  • Demyelinating Disease

    Tumefactive demyelinating disease (TDD) is a rare primary demyelinating disease with diagnostic and therapeutic challenges. We report a 50-year old woman with TDD successfully treated with decompressive craniectomy and corticosteroids. The patient presented with seizures, subacute progressive hemispheric syndrome,[…][ncbi.nlm.nih.gov]

    Missing: Compound Muscle Action Potential with Low Amplitude
  • Chronic Inflammatory Demyelinating Polyneuropathy

    We report a patient with chronic inflammatory demyelinating polyneuropathy associated with primary biliary cirrhosis (PBC). Except for minimal biochemical abnormalities, clinical symptoms of PBC were not observed, and we diagnosed our patient with asymptomatic PBC from the results of a liver biopsy. Although the[…][ncbi.nlm.nih.gov]

    Missing: Compound Muscle Action Potential with Low Amplitude
  • Polyarteritis Nodosa

    A 39-year-old woman presented with prominent and painful livedo reticularis lesions spreading on her upper and lower extremities. Histopathologically, the small-to medium-sized arteries in the deep dermis and subcutis showed necrotizing vasculitis with cellular infiltration, suggesting cutaneous polyarteritis nodosa. The[…][ncbi.nlm.nih.gov]

    Missing: Compound Muscle Action Potential with Low Amplitude
  • Serum Neuropathy

    ICD.Codes ICD-10-CM (2016) Chapter 6 Section G60-G65 Code G61.1 BILLABLE Billable Code Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis. ICD-10 from 2011 - 2016 G61.1 is a billable ICD code used to specify a diagnosis of serum neuropathy. A 'billable code' is[…][icd.codes]

    Missing: Compound Muscle Action Potential with Low Amplitude
  • Neuropathy

    Patients have relatively normal nerve conduction velocities but low amplitude sensory nerve action potentials and compound muscle action potentials.[merckmanuals.com]

    Missing: Nerve Conduction Study showing Demyelination Pattern
  • Food-Borne Botulism

    Electrophysiologic tests of such patients show reduced compound muscle action potentials (CMAPs), low amplitudes and short durations of motor unit potentials (MUPs), and mild[ncbi.nlm.nih.gov]

    Missing: Nerve Conduction Study showing Demyelination Pattern
  • Bickerstaff Brainstem Encephalitis

    (absent R2) suggested central dysfunction, whereas results of facial nerve conduction studies (low amplitudes of compound muscle action potentials), F-wave and H-reflex studies[ncbi.nlm.nih.gov] The electroencephalographic findings (diffuse slow activity), median somatosensory evoked potential (absent cortical N20 with normal cervical N13), and blink reflex studies[ncbi.nlm.nih.gov]

    Missing: Nerve Conduction Study showing Demyelination Pattern
  • Lambert Eaton Myasthenic Syndrome

    Distinguishing features of the RNS test in LEMS and MG are confirmed in this direct comparison study: the low compound muscle action potential amplitude, decrement at LRS,[ncbi.nlm.nih.gov] amplitude compound muscle action potential (CMAP), a decremental response to low rate stimulation, and an incremental response to high rate stimulation or after brief exercise[orpha.net] Features including weakness that normalized with sustained contraction, areflexia, autonomic symptoms, and low-amplitude baseline compound muscle action potentials with abnormal[ncbi.nlm.nih.gov]

    Missing: Nerve Conduction Study showing Demyelination Pattern
  • Ulnar Nerve Entrapment

    amplitudes of sensory nerve action potentials and compound muscle action potentials Treatment Nonoperative NSAIDs, activity modification, and nighttime elbow extension splinting[orthobullets.com] […] symptoms direct cubital tunnel compression exacerbates symptoms Studies EMG / NCV helpful in establishing diagnosis and prognosis threshold for diagnosis conduction velocity low[orthobullets.com]

    Missing: Nerve Conduction Study showing Demyelination Pattern

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