***SVU-CME version (for Sonographers/Technologists)***
Aortocaval fistula (ACF) is a rare and life-threatening complication associated with rupture of an abdominal aortic aneurysm (rAAA). Early detection and management of ACF’s during surgical repair of rAAAs is recommended to reduce the risk of future aneurysm-related complications, including mortality. There is a paucity of current literature on the natural history of ACFs postendovascular exclusion. We present a case study describing the detection of a persistent ACF by duplex ultrasonography (DU) postendovascular aortic repair (EVAR).