• Daiki Wada, Koichi Hayakawa, Shuhei Maruyama, Fukuki Saito, Hiroyuki Kaneda, Yasushi Nakamori, and Yasuyuki Kuwagata.
• Department of Emergency and Critical Care Medicine, Kansai Medical University Medical Center, 10-15 Fumizono-cho, Moriguchi, Osaka, 570-8507, Japan. dk0116-w@live.jp.
• Scand J Trauma Resus. 2019 Apr 23; 27 (1): 4949.

BackgroundIn paediatric trauma patients, tracheobronchial injury can be a rare, life-threatening trauma. In 2011, we instituted a new trauma workflow concept called the hybrid emergency room (Hybrid ER) that combines a sliding CT scanning system with interventional radiology features to permit CT examination and emergency therapeutic intervention without moving the patient. Extracorporeal membrane oxygenation (ECMO) can lead to cannula-related complications. However, procedures supported by moveable C-arm fluoroscopy and ultrasonography equipment can be performed soon after early CT examination. We report a paediatric patient with tracheobronchial injury diagnosed by CT examination who underwent rapid resuscitation and safe installation of veno-venous (VV) ECMO in our Hybrid ER and was successfully treated by surgery.Case PresentationA 11-year-old boy was admitted to our Hybrid ER suffering blunt chest trauma. His vital signs were unstable with low oxygen saturation. Early CT examination was performed without relocation. CT revealed bilateral hemopneumothorax, bilateral lung contusion, left multiple rib fractures, and right bronchus intermedius injury. Because his oxygenation was severely low with a PaO2/FiO2 ratio (P/F) of 109, he was at very high risk during transport to the operating room and changing to one-lung ventilation. Thus, we established VV ECMO in the Hybrid ER before we performed thoracotomy under left lung ventilation in the operating room. After the P/F ratio improved, he was transferred to the operating room under VV ECMO. We performed middle- and lower-lobe resection and sutured the stump of the right bronchus intermedius to treat the complete tear of this branch. After his respiratory function recovered, VV ECMO was removed on postoperative day 5. After in-patient rehabilitation, he was discharged home on postoperative day 68 without sequelae.ConclusionsIt is feasible to perform VV ECMO in the Hybrid ER, but one case does not conclude it is safe. In this case, the blood oxygenation improved, but there are no evidence to support the safety of the procedure or the advantage of ECMO initiation in the Hybrid ER rather than in the operating room.

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