Patent foramen ovale may be innocent bystander, not source of stroke
Mayo Clinic researchers have found that -- contrary to current thinking by some in the medical community -- a patent foramen ovale (PFO), a small hole between the two upper chambers of the heart, does not predestine an individual to a stroke later in life. Findings will appear online on Friday, Dec. 9 in the Journal of the American College of Cardiology.
"In the general population, it does not appear there is a direct association between the detection of a PFO and having a stroke," says Irene Meissner, M.D., Mayo Clinic neurologist and lead study researcher. "Our study looked at the general population with PFO; if you detect PFO in someone who has already had a stroke, one cannot immediately assume that the PFO is causative."
Lisa Lucier | EurekAlert!
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