Cannula migration through an undiagnosed patent foramen ovale and embolic cerebrovascular accident in a patient with femoral venoarterial extracorporeal membrane oxygenation.

We present a case report of a patient with a pulmonary embolus placed on venoarterial extracorporeal membrane oxygenation who developed venous cannula migration through an undiagnosed patent foramen ovale causing an ischemic stroke due to a thrombus and requiring thrombectomy and device closure of the atrial defect.