Journal Article
Research Support, Non-U.S. Gov't
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Lateralized EEG findings in patients with neuropsychiatric manifestations of systemic lupus erythematosus.

Routine and quantitative EEG were used to determine whether there is a lateralized pattern of electrophysiologic dysfunction in patients with diverse neuropsychiatric manifestations of SLE. Twenty consecutive patients with neuropsychiatric symptoms of SLE underwent 20-minute EEG recordings with an 18-channel polygraph. Ten 1-second intervals were randomly selected for each patient. Once selected, the intervals were analyzed for the presence of theta and delta slow activity. Mapping was done by four-point interpolation around the 18 acquired data points. On routine EEG, abnormalities were identified in 14/20 patients with SLE. In 12/14 patients, the abnormalities were localized to the left temporal region. Quantitative EEG analyses revealed theta and delta slow activity predominantly affecting the left hemisphere in 16/19 patients with SLE. Taken together, these findings suggest selective involvement of the left hemisphere in patients with diverse neuropsychiatric manifestations of SLE.

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