Chapter

Patent Foramen Ovale—Paradoxical Embolism

Louis R. Caplan

in Stroke

Published on behalf of Oxford University Press

Published in print October 2010 | ISBN: 9780199739141
Published online April 2013 | e-ISBN: 9780199322978 | DOI: http://dx.doi.org/10.1093/med/9780199739141.003.020

Series: What Do I Do Now

Patent Foramen Ovale—Paradoxical Embolism

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Paradoxical embolism, arising from thrombi in the leg or pelvic veins, and passing through a patent foramen ovale (PFO) to reach the left ventricle of the heart and subsequently the brain, has become an increasingly important cause of stroke. However, as many as 25–30% of individuals have a PFO, and this common cardiac finding is often unrelated to the cause of the patient’s brain ischemia.

Chapter.  1378 words. 

Subjects: Neurology

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