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Permanent Dementia in Idiopathic Parkinsonism Treated With Levodopa
Sheldon M. Wolf, MD;
Richard L. Davis, MD
Arch Neurol. 1973;29(4):276-278.
Abstract
An acute confusional-hallucinatory syndrome, followed by stupor and permanent dementia occurred in a patient with mild idopathic parkinsonism receiving trihexy-phenidyl, amantadine, and levodopa. During the stuporous period, his eyes were divergent, with absent oculocephalic reflexes. There were no abnormalities of other cranial nerve functions or long tract signs. Intravenous doses of pyridoxine were of no benefit. The electroencephalogram was diffusely slow. Results of laboratory studies were unremarkable, except for mild hydrocephalus ex vacuo. Seventeen days after onset, he began to recover from stupor, and became alert but profoundly demented until his death four months later. Neuropathological changes included depigmentation, neuronal loss, gliosis and Lewy bodies in the substantia nigra, mild hydrocephalus, mild atherosclerotic changes in basilar and carotid arteries, and a few tiny cerebellar infarcts. Pathological changes did not explain the acute illness.
Author Affiliations
Los Angeles
From the Southern California Permanente Medical Group (Dr. Wolf); Cajal Laboratory of Neuropathology, Los Angeles County/USC Medical Center (Dr. Davis); and University of Southern California School of Medicine (Drs. Wolf and Davis), Los Angeles.
Footnotes
Accepted for publication June 13, 1973.
Reprint requests to 1526 N Edgemont St, Los Angeles 90027 (Dr. Wolf).
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