• Rahul V Nene, Bryan Corbett, Gage Lambert, Alan M Smith, Andrew LaFree, Jeffrey A Steinberg, and Todd W Costantini.
• Department of Emergency Medicine, University of California, San Diego, San Diego, CA, USA; Department of Emergency Medicine, El Centro Regional Medical Center, El Centro, CA, USA. Electronic address: rnene@health.ucsd.edu.
• Am J Emerg Med. 2024 Apr 1; 78: 127131127-131.

Study ObjectiveOur goal was to determine if low-risk, isolated mild traumatic brain injury (TBI) patients who were initially treated at a rural emergency department may have been safely managed without transfer to the tertiary referral trauma center.MethodsThis was a retrospective observational analysis of isolated mild TBI patients who were transferred from a rural Level IV Trauma Center to a regional Level I Trauma Center between 2018 and 2022. Patients were risk-stratified according to the modified Brain Injury Guidelines (mBIG). Data abstracted from the electronic medical record included patient presentation, management, and outcomes.Results250 patients with isolated mild TBI were transferred out to the Level I Trauma Center. Fall was the most common mechanism of injury (69.2%). 28 patients (11.2%) were categorized as low-risk (mBIG1). No mBIG1 patients suffered a progression of neurological injury, had worsening of intracranial hemorrhage on repeat head CT, or required neurosurgical intervention. 12/28 (42.9%) of mBIG1 patients had a hospital length of stay of 2 days or less, typically for observation. Those with longer lengths of stay were due to medical complications, such as sepsis, or difficulty in arranging disposition.ConclusionWe propose that patients who meet mBIG1 criteria may be safely observed without transfer to a referral Level I Trauma Center. This would be of considerable benefit to patients, who would not need to leave their community, and would improve resource utilization in the region.Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.

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