Patent Foramen Ovale and Secondary Stroke Prevention

Patent foramen ovale (PFO) is an often overlooked cause of acute ischemic stroke. JAMA Associate Editor Jeffrey Saver, MD, professor of neurology at UCLA, discusses new recommendations from a 2020 AAN Practice Advisory about use of mechanical PFO closure and anticoagulant vs antiplatelet therapy to prevent subsequent strokes in patients with a PFO and an initial event.