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414 Possible Causes for Nerve Conduction Studies Abnormal

  • Amyotrophic Lateral Sclerosis

    A nerve conduction study: This measures the ability of your nerves to send signals.[] conduction studies and abnormal motor nerve conduction studies, with reduced motor compound muscle action potentials.[] Only about 10% of ALS patients have abnormal nerve conduction study results, but the test can also suggest other diagnoses. A muscle biopsy.[]

  • Anemia

    Nerve conduction study (NCS)/EMG findings are as follows: In 1943, Dynes and Norcross found evidence of neuropathy in 23% of patients with PA.[] Visual evoked potential (VEP) findings are as follows: VEP findings may be abnormal even without visual symptoms or signs.[]

  • Ganglion Cyst

    An electromyelogram (EMG) and nerve conduction study of the lower extremity showed a left peroneal nerve neuropraxia at the level of the fibular head.[] There was no abnormality in sensory examinations. Sciatic root stretch signs were negative.[]

  • Neuropathy

    Supporting studies include nerve conduction studies and skin biopsy.[] It must be acknowledged that nerve conduction studies may not be abnormal in small fibre neuropathy yet the patient may still present with neuropathic symptoms.[] Diagnosis can be obtained from a detailed history and neurologic exam revealing absent ankle jerks and abnormal, vibratory perception or decreased pinprick or temperature.[]

  • Obesity

    nerve conduction), and 21 control subjects were studied with two SSEP methods.[] Recently, the same author evaluated the diagnostic utility of SSEP studies of the LFCN in assessing patients with MP.[] Twenty-one consecutive patients with unilateral MP, as defined clinically (sensory impairment of the lateral aspect of the thigh) and electrodiagnostically (abnormal sensory[]

  • Peripheral Neuropathy

    Fifty-three percent (9/17) of our patients had abnormality of one or more attributes (latency, amplitude or conduction velocity) in two or more separate nerves.[] It must be acknowledged that nerve conduction studies may not be abnormal in small fibre neuropathy yet the patient may still present with neuropathic symptoms.[] Patients with genetically confirmed DM2 underwent motor nerve conduction studies of the median, ulnar, tibial and fibular nerves and sensory nerve conduction studies of the[]

  • Polyneuropathy

    Diagnostic nerve conduction studies confirm the focal nerve involvement.[] SUMMARY: The principles of nerve conduction studies and needle EMG are presented in this article, along with the patterns of abnormality encountered in patients with polyneuropathy[] There is no weakness but frequently motor nerve conduction studies are abnormal in addition to sensory conduction studies.[]

  • Orthostatic Hypotension

    However, nerve conduction tests clearly revealed motor and sensory nerve involvement and abnormal F-responses.[] A sural nerve biopsy and catecholamine fluorescence study of the rectal mucosa revealed relatively preserved postganglionic unmyelinated nerve fibers.[]

  • Lipedema

    In addition, motor nerve and sensory nerve conduction studies were performed to identify the cause of the lower extremity pain.[] Technetium-99m human serum albumin lymphangiography was also conducted to assess the presence of lymphedema, but there were no abnormalities ( Fig. 3 ).[]

  • Diabetes Mellitus

    Prevalence of Abnormal Clinical Neurologic Examinations, Abnormal Results of Nerve-Conduction Studies, and Abnormal Autonomic-Nerve Studies at Five Years in Patients Receiving[] Electron microscopy studies reveal abnormal connective tissue stroma, thick basal lamina around ICC and myocytes, and large empty nerve endings suggest more profound conduction[] Abnormal results of nerve-conduction studies were defined as abnormal results of neurophysiologic tests in at least two peripheral nerves.[]

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