Total Thrombotic Occlusion of an Extracardiac Fontan Conduit in a Hemodynamically Stable Patient.

Cardiac and extracardiac complications of single-ventricle physiology are well described and carry significant morbidity and mortality risks. We present the case of a 32-year-old patient with a Fontan circulation who presented to the emergency department with epigastric pain, and with chest computed tomography angiography concerning for total thrombosis of the extracardiac conduit.