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Thirty-five young patients with ischemic stroke were studied via color-flow echocardiography
in order to detect patent foramen ovale. The stroke patients were divided into two
groups: those with undetermined stroke etiology (Group I) and those with determined
stroke etiology (Group II). The prevalence of patent foramen ovale was 67% in Group
I and 43% in Group II. Our results suggest that patent foramen ovale is more frequent
in stroke patients, especially in patients without defined etiology. We also suggest
that paradoxical embolism is more frequent than previously thought.
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© 1992 National Stroke Association. Published by Elsevier Inc. All rights reserved.
