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Arch Iran Med. 2011 May;14(3):204-5. doi: 011143/AIM.0013.

Bell's palsy associated with chronic HCV infection before and during peginterferon alfa and ribavirin therapy.

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Digestive Disease Research Center, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran.


Neuropsychiatric side effects of peg interferon-α (PEG-IFN-α) therapy consist of a large spectrum of symptoms. Organic personality syndrome, organic affective syndrome, psychotic manifestations and seizures are more common side effects of PEG-IFN-α whereas cranial neuropathy and movement disorders are less common. Bell's palsy is often idiopathic, but has been linked to some viral infections, particularly with herpes viruses. Other infections, such as human immunodeficiency virus infection and Lyme disease, may also lead to idiopathic facial paralysis. Neither acute nor chronic Hepatitis C infection has been implicated previously in Bell's palsy, but PEG-IFN-α may play a role. Two patients with CHC who developed Bell's palsy before and during treatment with PEG-IFN-α and Ribavirin are presented here.

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