Helicopter Retrieval Services, Bankstown, Australia.
Prehosp Emerg Care. 2011 Jul-Sep;15(3):414-7. doi: 10.3109/10903127.2011.561416. Epub 2011 Apr 15.
A 41-year-old motocross rider sustained blunt trauma to the chest following a collision with another rider. He was initially hypoxic and was given oxygen with a non-rebreather mask. He complained of chest pain. A prehospital extended focused assessment with sonography in trauma (eFAST) scan was negative for pneumothorax, but demonstrated a hypokinetic left ventricle. An electrocardiogram (ECG) in the emergency department confirmed anterior myocardial infarction, found to be due to a traumatic left anterior descending coronary artery dissection. This case highlights a rare but life-threatening cause of hypoxia in blunt chest trauma.
一位 41 岁的越野摩托车骑手在与另一名骑手相撞后胸部受到钝性创伤。他最初出现低氧血症，并给予非再呼吸面罩吸氧。他主诉胸痛。院前扩展焦点评估与创伤超声检查（eFAST）扫描未见气胸，但显示左心室运动减弱。急诊科心电图（ECG）证实前壁心肌梗死，原因是创伤性左前降支冠状动脉夹层。本病例提示了钝性胸部创伤中一种罕见但危及生命的低氧血症原因。
