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July 1973

The Electroencephalogram in Normal Pressure Hydrocephalus

Author Affiliations

New York
From the Department of Neurology, College of Physicians and Surgeons, Columbia University; and the Neurological Institute of Columbia-Presbyterian Medical Center, New York.

Arch Neurol. 1973;29(1):70-71. doi:10.1001/archneur.1973.00490250088014

The electroencephalogram was normal in over 50% of 11 patients with normal pressure hydrocephalus. When present, abnormal records had a variety of changes, usually seen against normal background rhythms. Third ventricular dilatation, by itself, is not a cause of bursts or projected rhythms in the EEG.