title: Electroencephalographic findings in patients with mild Parkinson's disease treated with L-dopa and placebo.
abstract: The prognostic value of electroencephalograms in patients with early or mild Parkinson's disease treated with L-dopa is discussed. Fifteen patients with early or mild Parkinson's disease were studied clinically and electroencephalographically while receiving L-dopa or placebo treatment. Only a low incidence (four patients, 27%) of EEG abnormality was found. These patients showed only mild improvement: in three cases, the improvement followed an initial worsening in the first three months. Only one (13%) of the patients with a normal EEG became worse or failed to improve. The potential use of EED data in parkinsonism is discussed.
mesh_terms: D000368:Aged; D002986:Clinical Trials as Topic; D004569:Electroencephalography; D006801:Humans; D007980:Levodopa / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged; D010300:Parkinson Disease / Q000188:drug therapy* / Q000503:physiopathology; D010919:Placebos; D011379:Prognosis
chemical_list: D010919:Placebos; D007980:Levodopa