[Phone triage in primary care practices]. / Triage téléphonique en cabinet de médecine de famille.

In primary care medicine for adult or pediatric populations, phone calls from patients or parents are common. The variety of questions is broad, going from simple administrative requests to life-threatening emergencies. The safety of the patient is the main priority when answering these calls. In opposition to emergency departments in hospitals where numerous well-defined triage systems (for example, Swiss Emergency Triage Scale), including clinical exam with vital signs, have been used, it is difficult to find practical guidelines for a safe and efficient phone triage in medical practices. Swiss pediatricians already use a triage book to help them assess the need for emergency care for their young patients. A similar type of resource would be helpful for a safe management of calls in adult medicine.

En cabinet de médecine de famille, adulte ou pédiatrique, les appels téléphoniques de patients ou de leurs proches sont nombreux. Leurs questions sont variées, allant de la simple requête administrative à l'urgence vitale. La sécurité du patient reste la priorité principale dans les réponses apportées lors de ces appels. Contrairement aux systèmes d'urgences hospitalières utilisant de multiples échelles de tri comprenant un examen clinique de base avec signes vitaux (par exemple, Échelle suisse de tri), il existe peu de stratégies pour un triage efficace et sûr en médecine de cabinet. Les pédiatres suisses utilisent actuellement un guide au triage téléphonique visant à cibler correctement les besoins urgents de soins pour leurs jeunes patients. Un équivalent pour la médecine adulte serait une aide supplémentaire pour une prise en charge en toute sécurité.

The Current Discussion Regarding End-of-Life Care for Patients with Out-of-Hospital Cardiac Arrest with Initial Non-Shockable Rhythm: A Narrative Review.

Despite recent advances in resuscitation science, outcomes in patients with out-of-hospital cardiac arrest (OHCA) with initial non-shockable rhythm remains poor. Those with initial non-shockable rhythm have some epidemiological features, including the proportion of patients with a witnessed arrest, bystander cardiopulmonary resuscitation (CPR), age, and presumed etiology of cardiac arrest have been reported, which differ from those with initial shockable rhythm. The discussion regarding better end-of-life care for patients with OHCA is a major concern among citizens. As one of the efforts to avoid unwanted resuscitation, advance directive is recognized as a key intervention, safeguarding patient autonomy. However, several difficulties remain in enhancing the effective use of advance directives for patients with OHCA, including local regulation of their use, insufficient utilization of advance directives by emergency medical services at the scene, and a lack of established tools for discussing futility of resuscitation in advance care planning. In addition, prehospital termination of resuscitation is a common practice in many emergency medical service systems to assist clinicians in deciding whether to discontinue resuscitation. However, there are also several unresolved problems, including the feasibility of implementing the rules for several regions and potential missed survivors among candidates for prehospital termination of resuscitation. Further investigation to address these difficulties is warranted for better end-of-life care of patients with OHCA.

Assistance to victims of violence in Emergency services from the Forensic Nursing perspective.

OBJECTIVE: to analyze nurses' role in collecting, identifying and preserving traces in Emergency care for victims of violence, from the perspective of these professionals. METHOD: a qualitative study with an exploratory and descriptive approach. It was developed through semi-structured interviews with 21 nurses from hospitals that are part of the intersectoral flow to assist victims of violence from two reference hospitals in this type of care, in a capital city from southern Brazil. Nurses that are members of the multiprofessional team working in the Emergency areas at the respective hospitals were included; in turn, the exclusion criteria corresponded to professionals relocated in Emergency areas during the pandemic. Data analysis was performed according to Thematic Content Analysis. RESULTS: the data were discussed in five categories: 1) Professional qualification; 2) Institutional protocol and materials; 3) The professionals' perceptions; 4) The professionals' actions; and 5) Team structure. CONCLUSION: Nursing professionals' skills in collecting, identifying and preserving traces in Emergency assistance provided to victims of violence need to be better organized, structured and standardized. The presence of Nursing professionals in the care of victims of violence in Emergency services is undeniable, but their importance is still underestimated and their potential contribution to the forensic approach is underused.

Development and internal validation of an algorithm for estimating mortality in patients encountered by physician-staffed helicopter emergency medical services.

BACKGROUND: Severity of illness scoring systems are used in intensive care units to enable the calculation of adjusted outcomes for audit and benchmarking purposes. Similar tools are lacking for pre-hospital emergency medicine. Therefore, using a national helicopter emergency medical services database, we developed and internally validated a mortality prediction algorithm. METHODS: We conducted a multicentre retrospective observational register-based cohort study based on the patients treated by five physician-staffed Finnish helicopter emergency medical service units between 2012 and 2019. Only patients aged 16 and over treated by physician-staffed units were included. We analysed the relationship between 30-day mortality and physiological, patient-related and circumstantial variables. The data were imputed using multiple imputations employing chained equations. We used multivariate logistic regression to estimate the variable effects and performed derivation of multiple multivariable models with different combinations of variables. The models were combined into an algorithm to allow a risk estimation tool that accounts for missing variables. Internal validation was assessed by calculating the optimism of each performance estimate using the von Hippel method with four imputed sets. RESULTS: After exclusions, 30 186 patients were included in the analysis. 8611 (29%) patients died within the first 30 days after the incident. Eleven predictor variables (systolic blood pressure, heart rate, oxygen saturation, Glasgow Coma Scale, sex, age, emergency medical services vehicle type [helicopter vs ground unit], whether the mission was located in a medical facility or nursing home, cardiac rhythm [asystole, pulseless electrical activity, ventricular fibrillation, ventricular tachycardia vs others], time from emergency call to physician arrival and patient category) were included. Adjusted for optimism after internal validation, the algorithm had an area under the receiver operating characteristic curve of 0.921 (95% CI 0.918 to 0.924), Brier score of 0.097, calibration intercept of 0.000 (95% CI -0.040 to 0.040) and slope of 1.000 (95% CI 0.977 to 1.023). CONCLUSIONS: Based on 11 demographic, mission-specific, and physiologic variables, we developed and internally validated a novel severity of illness algorithm for use with patients encountered by physician-staffed helicopter emergency medical services, which may help in future quality improvement.

Implementing Tourniquet Conversion Guidelines for Civilian EMS and Prehospital Organizations : A Case Report and Review.

Since the first documented use of a tourniquet in 1674, the popularity of tourniquets has waxed and waned. During recent wars and more recently in Emergency Medical Services systems, the tourniquet has been proven to be a valuable tool in the treatment of life-threatening hemorrhage. However, tourniquet use is not without risk, and several studies have demonstrated adverse events and morbidity associated with tourniquet use in the prehospital setting, particularly when left in place for more than 2 h. Consequently, the US military's Committee on Tactical Combat Casualty Care has recommended guidelines for prehospital tourniquet conversion to reduce the risk of adverse events associated with tourniquets once the initial hemorrhage has been controlled. Emergency Medical Services systems that operate in rural, frontier, and austere environments, especially those with transport times to definitive care that routinely exceed 2 h, may consider implementing similar tourniquet conversion guidelines.

Methodology for Evidence Evaluation and Reporting of the NAEMSP Trauma Compendium Position Statements.

BACKGROUND: Position statements from national organizations commonly vary in methodology for the evaluation of existing literature and the development of recommendations. Recent national recommendations have highlighted important components for evidence-based guidelines that can be feasibly incorporated in the creation of position statements and their resource documents. We describe the methodology developed to guide the creation of a compendium of 16 trauma-related position statements led by NAEMSP and partner organizations. METHODS: Each position statement group developed trauma-related topic areas, primarily guided by the Population, Intervention, Comparison, and Outcome (PICO) framework. A structured literature search comprised of search terms aimed to identify relevant EMS and trauma-related scientific publications was performed for each topic area. Resource documents for each position statement included a description of the literature considered in forming recommendations, reported through evidence tables and a narrative description of the available literature. Where evidence was limited, consensus-based recommendations were developed using content experts and reviewed by the NAEMSP Standards and Clinical Practice Committee. CONCLUSION: We report a standardized methodology for literature review and development of recommendations as part of a compendium of trauma-related position statements from NAEMSP and partner organizations. This methodology can serve as a template for future position statements with ongoing refinement.

The Tägerwilen II report: Recommendations from the NATO Prehospital Care Improvement Initiative Task Force.

BACKGROUND: The Committee of the Chiefs of Military Medical Services (COMEDS) initiated the Prehospital Care Improvement Initiative Task Force (PHCII TF) to advise on how to improve prehospital care within NATO nations. The Task Force consisted of the NATO Military Health Care Working Group and its subordinated expert panels, including the Blood Panel, the Emergency Medicine Panel and the Special Operations Forces Medicine Panel. METHOD: The PHCII TF identified four key prehospital care themes for exploration: 1) Tactical Casualty Care, 2) Blood Far Forward), 3) Forward Surgical Capabilities), and 4) Prolonged Casualty Care. A consensus experimentation workshop explored the four themes, utilizing a modified Delphi technique and Utstein rotations during syndicate work, resulting in 83 consensus statements. The consensus statements were further evaluated on six criteria: actionable, measurable, urgent, interoperability, low risk/threat and impact. RESULTS: The 83 consensus statements, when weighted against the six criteria, resulted in 15 recommendations, focusing on standardization of training, ensuring provision of evidence-based practices and removing legislative barriers to improve prehospital care. CONCLUSION: The recommendations on these four themes reflect the most significant priorities in improving prehospital care, and must be incorporated in the on-going revision of NATO doctrine.

EMS Treatment Guidelines in Major Traumatic Brain Injury With Positive Pressure Ventilation.

Importance: 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. Objective: To evaluate the association of implementation of prehospital TBI evidence-based guidelines with survival among patients with prehospital PPV. Design, Setting, and Participants: 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. Exposure: Implementation of the evidence-based guidelines for the prehospital care of patient with TBI. Main Outcomes and Measures: The primary outcome was survival to hospital discharge, and the secondary outcome was survival to admission. Results: Among the 21 852 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). Conclusions and Relevance: 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.

Evidence-Based Guidelines for Prehospital Airway Management: Methods and Resources Document.

INTRODUCTION: Emergency airway management is a common and critical task EMS clinicians perform in the prehospital setting. A new set of evidence-based guidelines (EBG) was developed to assist in prehospital airway management decision-making. We aim to describe the methods used to develop these EBGs. METHODS: The EBG development process leveraged the four key questions from a prior systematic review conducted by the Agency for Healthcare Research and Quality (AHRQ) to develop 22 different population, intervention, comparison, and outcome (PICO) questions. Evidence was evaluated using the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) framework and tabulated into the summary of findings tables. The technical expert panel then used a rigorous systematic method to generate evidence to decision tables, including leveraging the PanelVoice function of GRADEpro. This process involved a review of the summary of findings tables, asynchronous member judging, and online facilitated panel discussions to generate final consensus-based recommendations. RESULTS: The panel completed the described work product from September 2022 to April 2023. A total of 17 summary of findings tables and 16 evidence to decision tables were generated through this process. For these recommendations, the overall certainty in evidence was "very low" or "low," data for decisions on cost-effectiveness and equity were lacking, and feasibility was rated well across all categories. Based on the evidence, 16 "conditional recommendations" were made, with six PICO questions lacking sufficient evidence to generate recommendations. CONCLUSION: The EBGs for prehospital airway management were developed by leveraging validated techniques, including the GRADE methodology and a rigorous systematic approach to consensus building to identify treatment recommendations. This process allowed the mitigation of many virtual and electronic communication confounders while managing several PICO questions to be evaluated consistently. Recognizing the increased need for rigorous evidence evaluation and recommendation development, this approach allows for transparency in the development processes and may inform future guideline development.

Evidence-Based Guideline for Prehospital Airway Management.

Airway management is a cornerstone of emergency medical care. This project aimed to create evidence-based guidelines based on the systematic review recently conducted by the Agency for Healthcare Research and Quality (AHRQ). A technical expert panel was assembled to review the evidence using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) methodology. The panel made specific recommendations on the different PICO (population, intervention, comparison, outcome) questions reviewed in the AHRQ review and created good practice statements that summarize and operationalize these recommendations. The recommendations address the use of ventilation with bag-valve mask ventilation alone vs. supraglottic airways vs. endotracheal intubation for adults and children with cardiac arrest, medical emergencies, and trauma. Additional recommendations address the use of video laryngoscopy and drug-assisted airway management. These recommendations, and the associated good practice statements, offer EMS agencies and clinicians an opportunity to review the available evidence and incorporate it into their airway management strategies.

Successful Surgical Airway Performance in the Combat Prehospital Setting: A Qualitative Study of Experienced Military Prehospital Providers.

INTRODUCTION: Military first responders are in a unique category of the healthcare delivery system. They range in skill sets from combat medic and corpsman to nurses, physician assistants, and occasionally, doctors. Airway obstruction is the second leading cause of preventable battlefield death, and the decision for intervention to obtain an airway depends on the casualty's presentation, the provider's comfort level, and the available equipment, among many other variables. In the civilian prehospital setting cricothyroidotomy (cric) success rates are over 90%, but in the US military combat environment success rates range from 0-82%. This discrepancy in success rates may be due to training, environment, equipment, patient factors and/or a combination of these. Many presumed causes have been assumed to be the root of the variability, but no research has been conducted evaluating the first-person point of view. This research study is focused on interviewing military first responders with real-life combat placement of a surgical airway to identify the underlying influences which contribute to their perception of success or failure. MATERIALS AND METHODS: We conducted a qualitative study with in-depth semi-structured interviews to understand participants' real-life cric experiences. The interview questions were developed based on the Critical Incident Questionnaire. In total, there were 11 participants-4 retired military and 7 active-duty service members. RESULTS: Nine themes were generated from the 11 interviews conducted. These themes can be categorized into 2 groups: factors internal to the provider, which we have called intrinsic influences, and factors external to the provider, which we call extrinsic influences. Intrinsic influences include personal well-being, confidence, experience, and decision-making. Extrinsic influences include training, equipment, assistance, environment, and patient factors. CONCLUSIONS: This study revealed practitioners in combat settings felt the need to train more frequently in a stepwise fashion while following a well-understood airway management algorithm. More focus must be on utilizing live tissue with biological feedback, but only after anatomy and geospatial orientation are well understood on models, mannequins, and cadavers. The equipment utilized in training must be the equipment available in the field. Lastly, the focus of the training should be on scenarios which stress the physical and mental capabilities of the providers. A true test of both self-efficacy and deliberate practice is forced through the intrinsic and extrinsic findings from the qualitative data. All of these steps must be overseen by expert practitioners. Another key is providing more time to focus on medical skills development, which is critical to overall confidence and overcoming hesitation in the decision-making process. This is even more specific to those who are least medically trained and the most likely to encounter the casualty first, EMT-Basic level providers. If possible, increasing the number of medical providers at the point of injury would achieve multiple goals under the self-efficacy learning theory. Assistance would instill confidence in the practitioner, help with the ability to prioritize patients quickly, decrease anxiety, and decrease hesitation to perform in the combat environment.

The Challenge of Emergency Abortion Care Following the Dobbs Ruling.

This Viewpoint discusses how limited or blocked access to legal abortion will affect the provision of emergency and critical care, including negative effects on patient health, legal intrusion into the patient-physician decision-making process, and concerns about legal jeopardy.

The role of feedback in emergency ambulance services: a qualitative interview study.

BACKGROUND: Several international studies suggest that the feedback that emergency ambulance service (EMS) personnel receive on the care they have delivered lacks structure, relevance, credibility and routine implementation. Feedback in this context can relate to performance or patient outcomes, can come from a variety of sources and can be sought or imposed. Evidence from health services research and implementation science, suggests that feedback can change professional behavior, improve clinical outcomes and positively influence staff mental health. The current study aimed to explore the experience of EMS professionals regarding current feedback provision and their views on how feedback impacts on patient care, patient safety and staff wellbeing. METHODS: This qualitative study was conducted as part of a wider study of work-related wellbeing in EMS professionals. We used purposive sampling to select 24 frontline EMS professionals from one ambulance service in the United Kingdom and conducted semi-structured interviews. The data was analyzed in iterative cycles of inductive and deductive reasoning using Abductive Thematic Network Analysis. The analysis was informed by psychological theory, as well as models from the wider feedback effectiveness and feedback-seeking behavior literature. RESULTS: Participants viewed current feedback provision as inadequate and consistently expressed a desire for increased feedback. Reported types of prehospital feedback included patient outcome feedback, patient-experience feedback, peer-to-peer feedback, performance feedback, feedforward: on-scene advice, debriefing and investigations and coroners' reports. Participants raised concerns that inadequate feedback could negatively impact on patient safety by preventing learning from mistakes. Enhancing feedback provision was thought to improve patient care and staff wellbeing by supporting personal and professional development. CONCLUSIONS: In line with previous research in this area, this study highlights EMS professionals' strong desire for feedback. The study advances the literature by suggesting a typology of prehospital feedback and presenting a unique insight into the motives for feedback-seeking using psychological theory. A logic model for prehospital feedback interventions was developed to inform future research and development into prehospital feedback.

Resuscitation of Drowned Persons During the COVID-19 Pandemic: A Consensus Statement.

Importance: Resuscitation is a niche example of how the COVID-19 pandemic has affected society in the long term. Those trained in cardiopulmonary resuscitation (CPR) face the dilemma that attempting to save a life may result in their own harm. This is most of all a problem for drowning, where hypoxia is the cause of cardiac arrest and ventilation is the essential first step in reversing the situation. Objective: To develop recommendations for water rescue organizations in providing their rescuers with safe drowning resuscitation procedures during the COVID-19 pandemic. Evidence Review: Two consecutive modified Delphi procedures involving 56 participants from 17 countries with expertise in drowning prevention research, resuscitation, and programming were performed from March 28, 2020, to March 29, 2021. In parallel, PubMed and Google Scholar were searched to identify new emerging evidence relevant to each core element, acknowledge previous studies relevant in the new context, and identify knowledge gaps. Findings: Seven core elements, each with their own specific recommendations, were identified in the initial consensus procedure and were grouped into 4 categories: (1) prevention and mitigation of the risks of becoming infected, (2) resuscitation of drowned persons during the COVID-19 pandemic, (3) organizational responsibilities, and (4) organizations unable to meet the recommended guidelines. The common measures of infection risk mitigation, personal protective equipment, and vaccination are the base of the recommendations. Measures to increase drowning prevention efforts reduce the root cause of the dilemma. Additional infection risk mitigation measures include screening all people entering aquatic facilities, defining criteria for futile resuscitation, and avoiding contact with drowned persons by rescuers with a high-risk profile. Ventilation techniques must balance required skill level, oxygen delivery, infection risk, and costs of equipment and training. Bag-mask ventilation with a high-efficiency particulate air filter by 2 trained rescuers is advised. Major implications for the methods, facilities, and environment of CPR training have been identified, including nonpractical skills to avoid being infected or to infect others. Most of all, the organization is responsible for informing their members about the impact of the COVID-19 pandemic and taking measures that maximize rescuer safety. Research is urgently needed to better understand, develop, and implement strategies to reduce infection transmission during drowning resuscitation. Conclusions and Relevance: This consensus document provides an overview of recommendations for water rescue organizations to improve the safety of their rescuers during the COVID-19 pandemic and balances the competing interests between a potentially lifesaving intervention and risk to the rescuer. The consensus-based recommendations can also serve as an example for other volunteer organizations and altruistic laypeople who may provide resuscitation.

Optimized Benzodiazepine Treatment of Pediatric Status Epilepticus Through a Standardized Emergency Medical Services Resuscitation Tool.

BACKGROUND: Optimized benzodiazepine (BZD) dosing decreases morbidity and mortality in children with status epilepticus (SE), but previous studies have documented widespread underdosing. Prior interventions have focused on in-hospital SE treatment, although more than 75% of pediatric patients with SE are initially treated by emergency medical services (EMS). Our goal was to assess whether an EMS-focused, collaboratively developed dosing resuscitation aid (Medic One Pediatric [MOPed] cards) and training could improve BZD dosing and pediatric SE outcomes. METHODS: We conducted a retrospective review of patients aged 12 years and younger treated by EMS for SE and transferred to Seattle Children's Hospital during the 1 year before and immediately after MOPed card training. The primary outcome was the percentage of patients receiving underdosed BZD treatment. Secondary outcomes included time to second-line antiseizure medication (ASM), intubation, and intensive care unit (ICU) admission. RESULTS: The 44 children before and 33 after MOPed implementation were similar with respect to age, gender, and pre-existing epilepsy diagnosis. The percentage of children receiving underdosed BZDs fell from 52% to 6% after MOPed implementation (P < 0.001). There was no significant decrease in requirement for intubation and ICU admission. The interval to treatment with a second-line ASM remained prolonged. CONCLUSIONS: EMS-focused training significantly increased the percentage of outpatient pediatric patients with SE who received recommended initial BZD treatment. This improvement in management of SE did not significantly alter the rate of intubation or ICU admission, suggesting the need for further optimization of out-of-hospital SE care, particularly access to and timely use of second-line ASMs.

Poor guideline adherence in a real-world evaluation of hypertensive emergency management.

BACKGROUND: The American College of Cardiology and American Heart Association define hypertensive emergency (HTN-E) as a systolic blood pressure greater than 180 mmHg or a diastolic blood pressure greater than 120 mmHg with evidence of end-organ damage (EOD). Based on expert opinion, current guidelines recommend antihypertensive therapy to reduce blood pressure (BP) at specific hourly rates to reduce progression of EOD, outlined by four criteria. Our goal was to describe compliance with guideline recommendations for early management of HTN-E and to analyze safety outcomes related to pharmacologic intervention. METHODS: This was a retrospective chart review including patients presenting to the emergency department with HTN-E between September 2016 and August 2020. We excluded patients with a compelling indication for altered therapeutic goals (e.g. acute aortic dissection, hemorrhagic or ischemic stroke, and pheochromocytoma). The primary outcome was complete adherence with guideline recommendations in the first 24 h. RESULTS: Of 758 screened records, 402 were included. Mean age was 54 years and majority Black race (72%). Overall, total adherence was poor (<1%): 30% received intravenous therapy within 1 h, 64% achieved 1-h BP goals, 44% achieved 6-h goals, and 9% had appropriate 24-h maintenance BP. Hypotensive events (N = 67) were common and antihypertensive-associated EOD (N = 21) did occur. Predictors of hypotension include treatment within 1 h and management with continuous infusion medication. CONCLUSIONS: Current practice is poorly compliant with guideline criteria and there are risks associated with recommended treatments. Our results favor relaxing the expert opinion-based recommendations.

Clinical decision support for severe trauma patients: Machine learning based definition of a bundle of care for hemorrhagic shock and traumatic brain injury.

BACKGROUND: Deviation from guidelines is frequent in emergency situations, and this may lead to increased mortality. Probably because of time constraints, 55% is the greatest reported guidelines compliance rate in severe trauma patients. This study aimed to identify among all available recommendations a reasonable bundle of items that should be followed to optimize the outcome of hemorrhagic shocks (HSs) and severe traumatic brain injuries (TBIs). METHODS: We first estimated the compliance with French and European guidelines using the data from the French TraumaBase registry. Then, we used a machine learning procedure to reduce the number of recommendations into a minimal set of items to be followed to minimize 7-day mortality. We evaluated the bundles using an external validation cohort. RESULTS: This study included 5,924 trauma patients (1,414 HS and 4,955 TBI) between 2011 and August 2019 and studied compliance to 36 recommendation items. Overall compliance rate to recommendation items was 71.6% and 66.9% for HS and TBI, respectively. In HS, compliance was significantly associated with 7-day decreased mortality in univariate analysis but not in multivariate analysis (risk ratio [RR], 0.91; 95% confidence interval [CI], 0.90-1.17; p = 0.06). In TBI, compliance was significantly associated with decreased mortality in univariate and multivariate analysis (RR, 0.85; 95% CI, 0.75-0.92; p = 0.01). For HS, the bundle included 13 recommendation items. In the validation cohort, when this bundle was applied, patients were found to have a lower 7-day mortality rate (RR, 0.46; 95% CI, 0.27-0.63; p = 0.01). In TBI, the bundle included seven items. In the validation cohort, when this bundle was applied, patients had a lower 7-day mortality rate (RR, 0.55; 95% CI, 0.34-0.71; p = 0.02). DISCUSSION: Using a machine-learning procedure, we were able to identify a subset of recommendations that minimizes 7-day mortality following traumatic HS and TBI. These two bundles remain to be evaluated in a prospective manner. LEVEL OF EVIDENCE: Care Management, level II.