Why the study?
Is the presence of patent foramen ovale (PFO) or atrial septal aneurysm (ASA) associated with an increased risk of ischemic stroke?
Is the presence of patent foramen ovale (PFO) or atrial septal aneurysm (ASA) associated with an increased risk of ischemic stroke?
PFO and ASA are significantly associated with ischemic stroke, particularly in patients younger than 55 years, with the highest risk observed when both abnormalities are present.
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PFO/ASA evaluation may be considered in cryptogenic stroke; confirms association, strongest with both present.
Overell et al. (2000) studied this question.
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