Abstract 236: Delayed Cerebral Fat Embolism Syndrome with Large Vessel Occlusion after Surgical Aortic Valve Replacement

Fat embolism due to large vessel occlusion (LVO) is a rare subset of patients with the more common Fat Embolism Syndrome (FES). With the latter, these are seen after orthopedic trauma or surgery within 24‐72 hours of inciting event, resulting in ischemia to the skin, lungs, or brain, whereas the former is typically associated with cardiac surgery (specifically mitral valve replacement) within 6 hours of the inciting event, carrying a high mortality. A leading theory suggests trauma releases fat particles into venous system that are passed via cardiopulmonary shunts or elevated pulmonary artery pressures. However, we present an atypical case of fat embolism associated with LVO, one week after surgical aortic valve replacement surgery.