Fatal acute haemopericardium associated with rivaroxaban in a patient with non-valvular atrial fibrillation

An 82-year-old female was admitted with chest pain and non-specific T wave changes on her ECG. After 72 hours of conservative management she deteriorated with non-specific symptoms including nausea and a single episode of vomiting. Abdominal and Chest X-rays were unremarkable, blood tests showed worsening Acute Kidney Injury (AKI) on Chronic Kidney Disease (CKD); and raised C-Reactive Protein (CRP) with no obvious symptoms or focus of infection. She rapidly deteriorated going into asystole cardiac arrest and attempts at resuscitation failed. Post-mortem examination suggested the most likely cause of death was acute spontaneous Haemopericardium due to Rivaroxaban therapy which she was on for non-valvular Atrial Fibrillation (AF). We believe that this might be the first reported mortality with Rivaroxaban-associated spontaneous haemopericardium in the UK.