RT Journal Article SR Electronic T1 Level 3 tracheal injury in acute coronary syndrome treated conservatively with extracorporeal membrane oxygenation JF BMJ Case Reports JO BMJ Case Reports FD BMJ Publishing Group Ltd SP e251456 DO 10.1136/bcr-2022-251456 VO 15 IS 11 A1 Syuntaro Horio A1 Takashi Yoshizane A1 Makoto Iwama A1 Toshiyuki Noda YR 2022 UL http://casereports.bmj.com/content/15/11/e251456.abstract AB Level 3 tracheal injury, characterised by complete laceration with oesophageal or mediastinal soft-tissue herniation, is conventionally indicated for surgical repair. We present the case of a woman in her 60s with level 3 tracheal injury in acute coronary syndrome who was treated successfully without surgery. Venoarterial extracorporeal membrane oxygenation (ECMO) was introduced during lung-rest management to avoid positive pressure ventilation, and percutaneous coronary angioplasty was performed. Venoarterial ECMO was switched to venovenous ECMO when the haemodynamics improved. The tracheal injury healed spontaneously in 10 days, and ECMO was withdrawn on day 15. The patient made full recovery and was discharged on day 51.