Abstract
Backgrounds：Blunt thoracic aortic injury （BTAI） patients are severely ill, with high mortality and morbidity. As 60% of BTAIs occur in the distal arch, left subclavian artery （LSCA） management is determined without knowing posterior cerebral or left arm circulation in emergent cases. Because we perform thoracic endovascular aortic repair （TEVAR）+ debranching technique for thoracic BTAI, we assessed efficacy and safety of debranching TEVAR in BTAI patients. Methods：We retrospectively reviewed vital signs on arrival, injury mechanism, characteristics, clinical time-series, concomitant injuries, injury description, operative procedures, and results from patient records. Results：From April 2014 to December 2021, eleven patients admitted with BTAI underwent TEVAR. Four patients underwent simple TEVAR and seven underwent debranching TEVAR （LSCA occlusion + left common carotid artery to LSCA bypass）. Median operation time was 118 （78-148） min for simple TEVAR and 172 （128-226） min for debranching TEVAR. Only one complication of left-hand claudication occurred postoperatively in a patient with simple TEVAR with LSCA occlusion. Conclusion：Despite debranching TEVAR taking approximately 60 min longer than simple TEVAR, short-term results indicated it to be acceptable for BTAI in multiple trauma patients to avoid LSCA complications unless we fail to stop bleeding first.
