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From the Departments of Neurology (Dr. Yamanouchi), Cardiology (Dr. Matsushita), and Pathology (Dr. Esaki), Tokyo Metropolitan Geriatric Hospital, and the Division of Neuropathology (Dr. Mizutani), Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan.
Address correspondence and reprint requests to Dr. Hiroshi Yamanouchi, Department of Neurology, Tokyo Metropolitan Geriatric Hospital, 35-2 Sakaecho, Itabashiku, Tokyo-173, Japan.
We examined brains clinicopathologically from 54 consecutive paroxysmal atrial fibrillation (PAF) patients aged 70 years or older and compared them with those of 59 age-matched controls. Symptomatic cerebral infarctions were present in 29 PAF patients (53.7%) and in 13 controls (22.0%) (p< 0.001). Symptomatic brain infarction was 2.4 times more common in PAF cases than in PAF-free controls; approximately 60% of the infarctions in the PAF cases were judged to be cardioembolic in origin. PAF in the elderly can be an important cause for cardiogenic cerebral embolism.
Supported in part by a Research Grant for Cardiovascular Diseases (6A-2) from the Ministry of Health and Welfare, Japan. Received December 17, 1996. Accepted in final form May 13, 1997.
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