SAN FRANCISCO (MedPage Today) -- Closure of a patent foramen ovale (PFO) incidentally discovered during cardiothoracic surgery does not improve survival and may actually increase stroke risk rather than reducing it as expected, researchers found.
patent foramen ovale pfoRepair of Asymptomatic PFO Increases Stroke Risk (CME/CE)MedPage Today Surgery Tue, 07/14/2009 - 14:00
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