Patent foramen ovale

Deep venous thrombosis prevention is helped by improving mobility, especially postoperatively. Measures such as leg exercises and use of anticoagulation with unfractionated heparin or enoxaparin, or mechanical measures such as calf compression should be considered. Additionally, in people known to have a PFO, maneuvers that lead to increased right atrial pressure (i.e., straining and Valsalva) should be avoided to prevent paradoxical embolism. Compliance with prescribed medications such as aspirin, clopidogrel, or warfarin is essential, as these decrease the chances of a recurrent event.