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  • Title: [Optic neuropathy caused by amiodarone].
    Author: Ferreiro JL, Isern Longares JA, Ramón Moya AF.
    Journal: Neurologia; 1990 May; 5(5):160-3. PubMed ID: 1698072.
    Abstract:
    Amiodarone has been used for the last 20 years, initially as antianginal and then as antiarrhythmic agent. To the collateral effects described, the optic neuropathy must be added as a complication, not so frequent, caused apparently by the prolonged ingestion of it. Two patients treated with MDD of 250 mg of amiodarone, for a mean of 17 months, are reported. They presented a decrease of the visual acuity. After proposing the possible differential diagnosis, the relation between the use of amiodarone and the optic alteration observed is briefly exposed, relating it with the demyelination neuropathy induced by this drug. This presumption is corroborated by the ultrastructural alterations registered in the optic nerve of animals in which amiodarone was used, similar to those of the peripheral nerves, as an expression of a disorder of the lipidic metabolism, which allow it to be integrated to the so called iatrogenic lipidoses.
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