• Sarah I Traboulsy, Rana Bachir, and Mazen El Sayed.
• Department of Emergency Medicine, American University of Beirut Medical Center, Beirut, Lebanon.
• Am J Emerg Med. 2022 Dec 1; 62: 181-8.

IntroductionChest wall instability is a potentially life-threatening condition that should be evaluated at a trauma center. While patients with chest wall instability are sent to different trauma center levels, the impact of this on outcomes has not been evaluated yet. This study examines survival to hospital discharge of patients with chest wall instability treated at different trauma center levels.MethodsThis is an observational retrospective cohort study analyzed data from National Trauma Data Bank (NTDB) 2017 dataset. The study sample consisted of adult patients who presented with chest wall instability or deformity and for whom the ED disposition was recorded. Descriptive analysis was carried out. Hospital information, patients' demographic and clinical characteristics, and dispositions were compared based on the main independent variable "trauma designation level. This was followed by LASSO regression to determine the impact of the trauma designation level on patients' survival after controlling for most of the extracted factors from NTDB to conduct this study.ResultsThe study sample consisted of 1172 patients sustaining chest wall instability or deformity. Most patients were males (78.2%) and had a median age of 52 years. Most were taken to level I (51.5%) or level II (43.2%) trauma centers. The overall survival to hospital discharge was 78.2%. After adjusting for confounders, no difference in patients' survival was noticed between those taken to level II [OR = 1.000; 95% confidence interval (CI): 0.976-1.025] or III [OR = 1.000; 95% CI: 0.993-1.007] trauma centers and those taken to level I centers.ConclusionSurvival rates for patients having chest wall instability were similar when transported to level II or level III versus level I centers. This finding can help guide pre-hospital field triage criteria for this specific type of injury and highlights the need for more outcome research in organized trauma systems.Copyright © 2022. Published by Elsevier Inc.

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