Prehospital emergency care : official journal of the National Association of EMS Physicians and the National Association of State EMS Directors
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Observational Study
Bolus Dose Epinephrine improves blood pressure but is associated with increased mortality in critical care transport.
Objective: Hypotension in the prehospital environment is common and linked to dose-dependent mortality. Bolus dose epinephrine (BDE) may reverse hypotension. We tested if BDE use to treat profound hypotension is associated with 24-hour survival. ⋯ Conclusions: Bolus dose epinephrine increases blood pressure in the prehospital setting. Despite robust efforts to control for confounding, BDE remained associated with increased mortality in this observational cohort. This association may be due to unmeasured confounding and a randomized controlled trial is necessary to establish a causal relationship between bolus dose vasopressors and mortality.
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Observational Study
Dutch prospective observational study on prehospital treatment of severe traumatic brain injury: The BRAIN-PROTECT study protocol.
Background: Severe traumatic brain injury (TBI) is associated with a high mortality rate and those that survive commonly have permanent disability. While there is a broad consensus that appropriate prehospital treatment is crucial for a favorable neurological outcome, evidence to support currently applied treatment strategies is scarce. In particular, the relationship between prehospital treatments and patient outcomes is unclear. ⋯ Discussion: Current prehospital treatment of patients with suspected severe TBI is based on marginal evidence, and optimal treatment is basically unknown. The BRAIN-PROTECT study provides an opportunity to evaluate and compare different treatment strategies with respect to patient outcomes. To our knowledge, this study project is the first large-scale prospective prehospital registry of patients with severe TBI that also collects long-term follow-up data and may provide the best available evidence at this time to give useful insights on how prehospital care can be improved.
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Objective: We evaluated the performance of individual trauma triage criteria using data from a regional trauma registry. Methods: Los Angeles County (LAC) paramedics use triage criteria adapted from the 2011 Center for Disease Control (CDC) guidelines to triage injured patients to Trauma Centers (TCs). TCs report outcomes to a LAC EMS registry. ⋯ No individual trauma criterion met the a priori likelihood ratio threshold of 10 for predicting "clear need" for a TC. Cardiopulmonary arrest with penetrating torso trauma and flail chest met this threshold for "possible need." Conclusion: In this retrospective analysis, no individual triage criterion definitively identified patients who benefit from transport to a TC. Yet, the majority of patients demonstrated potential benefit for nearly all criteria, supporting CDC recommendations that trauma triage criteria be considered in their entirety, not as individual criterion.
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Background: Fluctuations in emergency medical services (EMS) responses can have a substantial impact on the ability of agencies to meet resource needs within an EMS system. We aimed to identify weather characteristics as potentially predictable factors associated with EMS responses. Methods: We reviewed hourly counts of scene responses documented by 24 EMS agencies in Western Pennsylvania from January 1, 2014 to December 31, 2017 and compared rates of responses to weather characteristics. ⋯ Pediatric transports (n = 21,880) were not significantly associated with precipitation or season. Conclusion: EMS responses increased with rising temperature and following rain and snow. These findings may assist in planning by EMS agencies and emergency departments to identify periods of greatest resource utilization.
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Background: Recent studies demonstrate an association between spinal immobilization and neck pain, increased use of radiographs, and increased admission rates for pediatric trauma patients. There is an increasing trend toward spinal protection protocols that limit the use of backboards in trauma patients. However, many of these protocols do not address the youngest patients. ⋯ We did not find a significant difference in the percentage of trauma patients who received spinal imaging pre- and post-protocol change (20% vs. 18%, OR 0.84 [95% CI 0.66, 1.07]), but did observe a significant reduction in the proportion of trauma patients who were admitted to the hospital (25% vs. 18%, OR 0.66 [95% CI 0.52, 0.83]). This reduced admission rate was not observed in the neighboring jurisdiction. Conclusions: Implementation of a selective spinal immobilization protocol was associated with reduced admission rates, but did not significantly reduce rates of plain radiographs.