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  • Title: [Peripheral neuropathies and chronic hepatitis C: a frequent association?].
    Author: Ripault MP, Borderie C, Dumas P, Vallat JM, Goujon JM, Brecheteau P, Beauchant M, Silvain C.
    Journal: Gastroenterol Clin Biol; 1998 Nov; 22(11):891-6. PubMed ID: 9881271.
    Abstract:
    OBJECTIVE: The aim of this prospective study was to evaluate the prevalence of the peripheral neuropathies associated with chronic hepatitis C and their clinical, electrophysiological and histological characteristics. PATIENTS AND METHODS: Thirty six patients admitted from December 1994 to January 1996 for chronic hepatitis C were prospectively investigated. Laboratory data included liver blood tests, serum cryoprecipitate immunoelectrophoresis, assays for anti-nuclear antibody, rheumatoid factor, circulating immune complexes, anti-SSA and anti-SSB antibodies. For each patient, a clinical neurological evaluation as well as an electrophysiological evaluation were performed by the same operator. In presence of peripheral neuropathy, a neuromuscular biopsy was performed. RESULTS: In seven patients (19%), a peripheral neuropathy was diagnosed related to hepatitis C virus in 3 patients. In these 3 patients presenting with leg paresthesia, an axonal sensitive neuropathy was evidenced by electromyography. A neuromuscular biopsy performed in two of these patients showed a severe diminution of the myelinated fibers associated with vasculitis lesions in one patient. A skin biopsy was performed in the third patient with leg purpura revealing a leukocytoclasic vasculitis. A positive cryoglobulinemia was found in two of these patients. CONCLUSION: In chronic hepatitis C, the prevalence of peripheral neuropathy is 8% and usually associated with cryoglobulinemia. It is an axonal neuropathy with diminution of the myelinated fibers and vasculitis lesions in the absence of cryoglobulinemia.
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