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Neuropsychiatric Correlates of Cerebral White-Matter Radiolucencies in Probable Alzheimer's Disease
Oscar L. Lopez, MD;
James T. Becker, PhD;
Donald Rezek, MD, PhD;
Jeanne Wess;
Francois Boiler, MD, PhD;
Charles F. Reynolds III, MD;
Michel Panisset, MD
Arch Neurol. 1992;49(8):828-834.
Abstract
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• We evaluated the neuropsychological functions, rate of disease progression, and psychiatric characteristics of 22 patients with probable Alzheimer's disease in whom periventricular white-matter radiolucencies (PWMRs) were seen on the computed tomographic scan of the brain and compared them with 22 matched patients with Alzheimer's disease without PWMRs. Executive/attention, lexical/semantic, memory/learning, and visuospatial functions did not differ between the two groups at baseline or at the 1-year follow-up examination. The frequency of major depression, delusions, and hallucinations did not differ between the groups. However, patients with PWMRs had significantly higher Hachinski Rating scores at both visits and were more likely to develop cerebrovascular disease during follow-up than were controls with Alzheimer's disease. These preliminary results suggest that the presence of PWMRs is not associated with specific cognitive and psychiatric features or with an altered rate of progression of Alzheimer's disease but does predict the development of clinically significant cerebrovascularn disease.
Author Affiliations
From the Departments of Neurology (Drs Lopez, Becker, and Rezek) and Psychiatry (Drs Lopez, Becker, and Reynolds and Ms Wess), Alzheimer's Disease Research Center, University of Pittsburgh (Pa) School of Medicine, and the Paul Broca Center (Institute of National Health and Research, Unit 324), Paris, France (Drs Boller and Panisset).
Footnotes
Accepted for publication April 6, 1992.
Presented in part at the 44th Annual Meeting of the American Academy of Neurology, San Diego, Calif, May 6, 1992.
Reprint requests to the Alzheimer's Disease Research Center, 3600 Forbes Ave, Suite 400, Pittsburgh, PA 15213 (Dr Lopez).
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