PT - JOURNAL ARTICLE AU - Banerjee, Arnab AU - Aggarwal, Richa AU - Dev Soni, Kapil AU - Tirkha, Anjan TI - Prone positioning in a patient with fat embolism syndrome presenting as diffuse alveolar haemorrhage: new perspective AID - 10.1136/bcr-2019-233452 DP - 2020 Mar 01 TA - BMJ Case Reports PG - e233452 VI - 13 IP - 3 4099 - http://casereports.bmj.com/content/13/3/e233452.short 4100 - http://casereports.bmj.com/content/13/3/e233452.full SO - BMJ Case Reports2020 Mar 01; 13 AB - Diffuse alveolar haemorrhage (DAH) is a rare complication of fat embolism syndrome leading to severe hypoxaemia due to the effusion of blood into the alveoli from the damaged pulmonary microvasculature. The management is usually supportive with patients being nursed in supine position. The use of prone position ventilation in a DAH has rarely been reported before. We report an interesting case of a 26-year-old male patient diagnosed with DAH caused by fat embolism in whom prone position ventilation improved the lung dynamics and oxygenation.