Parkinson’s Disease May Have Link to Stroke

DALLAS, Tex -- February 28, 2017 -- Parkinson’s disease may be linked to stroke, much like Alzheimer’s disease and stroke are linked, according to research presented at the 2017 International Stroke Conference (ISC).

To see if an association exists between stroke and Parkinson’s disease, Benjamin R. Kummer, MD, Weill Cornell Medical College, New York, New York, and colleagues studied medical claims information from 2008 to 2014 in a sample of Medicare beneficiaries aged 66 years and older.

In separate analyses, they also studied the relationship between stroke and Alzheimer’s disease for comparison.

In their analysis of 1.6 million patients, researchers found the annual incidence of ischaemic stroke to be 1.75% among those diagnosed with Parkinson’s disease compared with 0.96% in those without Parkinson’s disease.

In contrast, the annual incidence of ischaemic stroke was 1.96% among those diagnosed with Alzheimer’s disease compared with 0.96% in those without Alzheimer’s disease.

The annual incidence of Parkinson’s disease was 0.97% after ischaemic stroke versus 0.39% in those without ischemic stroke.

In contrast, the annual incidence of Alzheimer’s was 3.66% among elderly adults diagnosed with stroke versus 1.17% in those without ischaemic stroke.

Among Medicare beneficiaries, the relationships between stroke and Parkinson’s disease were similar to those between stroke and Alzheimer’s disease.

SOURCE: American Heart Association
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