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Subacute Sensory Ataxia and Optic Neuropathy with Thiamine Deficiency

Overview
Journal Nat Rev Neurol
Specialty Neurology
Date 2010 Mar 24
PMID 20308997
Citations 15
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Abstract

Background: A 71 year-old man with a history of partial gastrectomy presented to the emergency department with subacute gait instability associated with painful dysesthesias and clumsiness in both hands. 10 years before presentation he had received a diagnosis of megaloblastic anemia, with no neurological involvement, as a result of vitamin B(12) and folate deficiency, for which he was receiving regular supplements.

Investigations: Neurological examination; routine laboratory testing; MRI of the spine and brain; lumbar puncture; electromyography; sensory, motor and visual evoked potentials, optic nerve optical coherence tomography; immunoelectrophoresis; cryoglobulins; immunological and infection tests; screening for onconeural antibodies; measurement of serum metabolic values, including vitamins B(12) and E, folates, homocysteine, copper, zinc and pyruvic acid; transketolase activity; gastrointestinal endoscopies; and the glucose breath test.

Diagnosis: Subacute sensory ataxia with bilateral optic neuropathy related to thiamine deficiency resulting from remote partial gastrectomy.

Management: Parenteral thiamine supplementation followed by chronic oral thiamine and short-term, low-dose multivitamins.

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