TY - JOUR A1 - Horst, Klemens A1 - Simon, Tim-Philipp A1 - Pfeifer, Roman A1 - Teuben, Michel Paul Johan A1 - Almahmoud, Khalid A1 - Qiao, Zhi A1 - Aguiar Santos, Susana A1 - Castelar Wembers, Carlos Emilio A1 - Leonhardt, Steffen A1 - Heussen, Nicole A1 - Störmann, Philipp A1 - Auner, Birgit A1 - Relja, Borna A1 - Marzi, Ingo A1 - Haug, Alexander Tobias A1 - Griensven, Martijn van A1 - Kalbitz, Miriam A1 - Huber-Lang, Markus A1 - Tolba, René H. A1 - Reiss, Lucy Kathleen A1 - Uhlig, Stefan A1 - Marx, Gernot A1 - Pape, Hans-Christoph A1 - Hildebrand, Frank T1 - Characterization of blunt chest trauma in a long-term porcine model of severe multiple trauma T2 - Scientific reports N2 - Chest trauma has a significant relevance on outcome after severe trauma. Clinically, impaired lung function typically occurs within 72 hours after trauma. However, the underlying pathophysiological mechanisms are still not fully elucidated. Therefore, we aimed to establish an experimental long-term model to investigate physiological, morphologic and inflammatory changes, after severe trauma. Male pigs (sus scrofa) sustained severe trauma (including unilateral chest trauma, femur fracture, liver laceration and hemorrhagic shock). Additionally, non-injured animals served as sham controls. Chest trauma resulted in severe lung damage on both CT and histological analyses. Furthermore, severe inflammation with a systemic increase of IL-6 (p = 0.0305) and a local increase of IL-8 in BAL (p = 0.0009) was observed. The pO2/FiO2 ratio in trauma animals decreased over the observation period (p < 0.0001) but not in the sham group (p = 0.2967). Electrical Impedance Tomography (EIT) revealed differences between the traumatized and healthy lung (p < 0.0001). In conclusion, a clinically relevant, long-term model of blunt chest trauma with concomitant injuries has been developed. This reproducible model allows to examine local and systemic consequences of trauma and is valid for investigation of potential diagnostic or therapeutic options. In this context, EIT might represent a radiation-free method for bedside diagnostics. KW - Diagnostic markers KW - Experimental models of disease KW - Respiratory signs and symptoms KW - Translational research KW - Trauma Y1 - 2016 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/46396 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-463961 SN - 2045-2322 N1 - Rights and permissions: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ VL - 6 IS - Art. 39659 SP - 1 EP - 13 PB - Macmillan Publishers Limited, part of Springer Nature CY - [London] ER -