{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,14]],"date-time":"2026-05-14T18:40:50Z","timestamp":1778784050793,"version":"3.51.4"},"reference-count":58,"publisher":"American Medical Association (AMA)","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JAMA Surg"],"published-print":{"date-parts":[[2024,4,1]]},"abstract":"Importance<\/jats:title>The Excellence in Prehospital Injury Care (EPIC) study demonstrated improved survival in patients with severe traumatic brain injury (TBI) following implementation of the prehospital treatment guidelines. The impact of implementing these guidelines in the subgroup of patients who received positive pressure ventilation (PPV) is unknown.<\/jats:p><\/jats:sec>Objective<\/jats:title>To evaluate the association of implementation of prehospital TBI evidence-based guidelines with survival among patients with prehospital PPV.<\/jats:p><\/jats:sec>Design, Setting, and Participants<\/jats:title>The EPIC study was a multisystem, intention-to-treat study using a before\/after controlled design. Evidence-based guidelines were implemented by emergency medical service agencies across Arizona. This subanalysis was planned a priori and included participants who received prehospital PPV. Outcomes were compared between the preimplementation and postimplementation cohorts using logistic regression, stratified by predetermined TBI severity categories (moderate, severe, or critical). Data were collected from January 2007 to June 2017, and data were analyzed from January to February 2023.<\/jats:p><\/jats:sec>Exposure<\/jats:title>Implementation of the evidence-based guidelines for the prehospital care of patient with TBI.<\/jats:p><\/jats:sec>Main Outcomes and Measures<\/jats:title>The primary outcome was survival to hospital discharge, and the secondary outcome was survival to admission.<\/jats:p><\/jats:sec>Results<\/jats:title>Among the 21\u202f852 participants in the main study, 5022 received prehospital PPV (preimplementation, 3531 participants; postimplementation, 1491 participants). Of 5022 included participants, 3720 (74.1%) were male, and the median (IQR) age was 36 (22-54) years. Across all severities combined, survival to admission improved (adjusted odds ratio [aOR], 1.59; 95% CI, 1.28-1.97), while survival to discharge did not (aOR, 0.94; 95% CI, 0.78-1.13). Within the cohort with severe TBI but not in the moderate or critical subgroups, survival to hospital admission increased (aOR, 6.44; 95% CI, 2.39-22.00), as did survival to discharge (aOR, 3.52; 95% CI, 1.96-6.34).<\/jats:p><\/jats:sec>Conclusions and Relevance<\/jats:title>Among patients with severe TBI who received active airway interventions in the field, guideline implementation was independently associated with improved survival to hospital admission and discharge. This was true whether they received basic airway interventions or advanced airways. These findings support the current guideline recommendations for aggressive prevention\/correction of hypoxia and hyperventilation in patients with severe TBI, regardless of which airway type is used.<\/jats:p><\/jats:sec>","DOI":"10.1001\/jamasurg.2023.7155","type":"journal-article","created":{"date-parts":[[2024,1,24]],"date-time":"2024-01-24T16:01:11Z","timestamp":1706112071000},"page":"363","source":"Crossref","is-referenced-by-count":9,"title":["EMS Treatment Guidelines in Major Traumatic Brain Injury With Positive Pressure Ventilation"],"prefix":"10.1001","volume":"159","author":[{"given":"Joshua B.","family":"Gaither","sequence":"first","affiliation":[{"name":"Arizona Emergency Medicine Research Center, College of Medicine\u2014Phoenix, The University of Arizona, Phoenix"},{"name":"Department of Emergency Medicine, College of Medicine, The University of Arizona, Tucson"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daniel 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