New Research into Stroke and the Brain

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06/27/2008

Jun. 27, 2008

New Research into Stroke and the Brain

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When a blood clot blocks an artery or blood flow to part of the brain is interrupted by a burst blood vessel, a person is said to have suffered a stroke. A stroke can cause the death of cells in the affected area of the brain, leading to brain damage. According to the National Stroke Association, stroke is the third leading cause of death in America and the leading cause of adult disability.

In this segment, we'll hear about two new medical studies dealing with strokes. Research published this week in the Archives of Internal Medicine finds that it may be possible to identify otherwise healthy older adults at risk for stroke and death by screening for subtle but clinically detectable neurological abnormalities, such as reduced reflexes and an unstable posture. We'll talk with one of the authors of the report. Plus, a report published this week in the journal Stroke found that about ten percent of a group of over 2000 apparently healthy study participants appear to have experienced a 'silent stroke,' or silent cerebral infarction. A 'silent stroke' has no outward symptoms, but can be seen via brain imaging techniques such as MRI. The study authors say the condition can be a risk factor for future strokes, or be an indication of progressive brain damage leading to long-term dementia. We'll find out more.

Produced by Karin Vergoth

Guests

Sudha Seshadri
Investigator, The Framingham
Heart Study

Associate Professor, Department
of Neurology

Boston University School of Medicine

Boston, Massachusetts
Malaz Boustani
Research Scientist, Regenstrief Institute,
Inc.

Center Scientist, Indiana University Center for
Aging Research

Assistant Professor of Medicine, Division
of General Internal Medicine and Geriatrics

Indiana University

Indianapolis, Indiana

Jun. 27, 2008