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Chronic inflammatory demyelinating polyneuropathy (CIDP) is a progressive or relapsing immune-mediated neuropathy usually responsive to plasma exchange, intravenous gammaglobulin or steroids, with some patients being refractory to these conventional therapies. We report a patient with CIDP who had spontaneous improvement after an episode of sepsis, but subsequently relapsed with severe generalized weakness; he was unresponsive to the conventional treatments for CIDP but had dramatic improvement following treatment with interferon-alpha 2A. Nerve conduction studies following treatment showed improved distal compound muscle action potential amplitudes without change in the degree of conduction block. The mechanism of action of interferon-alpha is unknown, but it may modulate proinflammatory cytokines that have a role in immune-mediated demyelination. Interferon-alpha may be an effective alternative therapy in patients with CIDP who relapse or are refractory to conventional treatments.
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| http://dx.doi.org/10.1212/wnl.48.3.777 | DOI Listing |
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