Comparison of 30-day retention in treatment among patients referred to opioid use disorder treatment from emergency department and telemedicine settings.

INTRODUCTION: Telemedicine is a feasible alternative to in-person evaluations for people with opioid use disorder (OUD). The literature on medications for opioid use disorder (MOUD) telemedicine has focused on ongoing OUD treatment. Emergency department (ED) visits are an opportunity to initiate MOUD; however, little is known regarding the outcomes of patients following telemedicine referrals for MOUD from emergency settings. The current study describes rates of initial outpatient clinic appointment attendance and 30-day retention in care among patients referred by telemedicine compared to ED referrals. METHODS: This paper reports a retrospective review of data for patients referred from EDs or telemedicine through the Medication for Addiction Treatment and Electronic Referrals (MATTERS) Network. The MATTERS online platform collects data on patient demographic information (e.g., age, gender, race/ethnicity, and insurance type), reason for visit, prior medical and mental health history, prior OUD treatment history, and past 30-day substance use behaviors. Analyses compared initial visit attendance and 30-day retention among the patients for whom follow-up data were received from clinics by demographic and initial treatment factors. RESULTS: Between October 2020 and September 2022, the MATTERS Network made 1349 referrals; 39.7 % originated from an ED and 47.8 % originated from telemedicine. For patients with available data, those referred from telemedicine were 1.64 times more likely to attend their initial clinic appointment and 2.59 times more likely be engaged in treatment at 30 days compared to those referred from an ED. More than two-thirds of patients referred from the emergency telemedicine environment followed up at their first clinic visit and more than half of these patients were still retained in treatment 30 days after referral. CONCLUSIONS: The rates of initial clinic visit and 30-day retention when referred following a telemedicine evaluation are encouraging. Further development of telemedicine programs that offer evaluations, access to medications, and referrals to treatment should be considered.

Assessing experts' perspectives on challenges in substance misuse prevention, harm reduction, and treatment to shape funding priorities in New York State.

BACKGROUND: Drug overdose is a leading cause of death and opioid-related deaths increased by more than 300% from 2010 to 2020 in New York State. Experts holding a range of senior leadership positions from across New York State were asked to identify the greatest challenges in substance misuse prevention, harm reduction, and treatment continuum of care. Expert input was used to shape funding priorities. METHOD: Individual semi-structured interviews of sixteen experts were conducted in April and May 2023. Experts included academics, medical directors, leaders of substance misuse service agencies, administrators of a state agency, a county mental health commissioner, the president of a pharmacy chain, and a senior vice president of an addiction-related national non-profit. Zoom interviews were conducted individually by an experienced qualitative interviewer and were recorded, transcribed, and coded for content. An initial report, with the results of the interviews organized by thematic content, was reviewed by the research team and emailed to the expert interviewees for feedback. RESULTS: The research team identified five major themes: 1. Siloed and fragmented care delivery systems; 2. Need for a skilled workforce; 3. Attitudes towards addiction (stigma); 4. Limitations in treatment access; and 5. Social and drug related environmental factors. Most experts identified challenges in each major theme; over three-quarters identified issues related to siloed and fragmented systems and the need for a skilled workforce. Each expert mentioned more than one theme, three experts mentioned all five themes and six experts mentioned four themes. CONCLUSIONS: Research, educational, and programmatic agendas should focus on identified topics as a means of improving the lives of patients at risk for or suffering from substance use-related disorders. The results of this project informed funding of pilot interventions designed to address the identified care challenges.

Initial Validity Evidence for the American Board of Emergency Medicine Emergency Medical Services Certification Examination.

Objectives: The American Board of Emergency Medicine (ABEM) Emergency Medical Services Medicine (EMS) was approved by the American Board of Medical Specialties on September 23, 2010. Subspecialty certification in EMS was contingent on two key elements-completing Accreditation Council for Graduate Medical Education (ACGME)-accredited EMS training and passing the subspecialty certification examination developed by ABEM. The first EMS certification examination was offered in October 2013. Meaningful certification requires rigorous assessment. In this instance, the EMS certification examination sought to embrace the tenets of validity, reliability, and fairness. For the purposes of this report, the sources of validity evidence were anchored on the EMS core content, the examination development process, and the association between fellowship training and passing the certification examination.Methods: We chose to use validity evidence that included: 1) content validity (based on the EMS core content); 2) response processes (test items require intended cognitive processes); 3) internal structure supported by the internal relationships among items; 4) relations to other variables, specifically the association between examination performance and ACGME-accredited fellowship training; and 5) the consequences of testing.Results: There is strong content validity evidence for the EMS examination based on the core content and its detailed development process. The core content and supporting job-task analysis was also used to define the examination blueprint. Internal structure support was evidenced by Cronbach's coefficient alpha, which ranged from 0.82 to 0.92. Physicians who completed ACGME-accredited EMS fellowship training were more likely to pass the EMS certification examination (chi square, p < 0.0001; Cramér's, V = 0.24). Finally, there were two sources of consequential validity evidence-use of test results to determine certification and use of the resulting certificate.Conclusions: There is substantial and varied validity evidence to support the use of the EMS certifying examination in making summative decisions to award certification in EMS. Of note, there was a statistically significant association between ACGME-accredited fellowship training and passing the examination.

Characteristics of Patients Presenting at an Emergency Department for a Heroin Overdose vs Detoxification.

Purpose: This study compares substance use, treatment histories, and sociodemographic characteristics of patients presenting to an emergency department (ED) following a heroin overdose or seeking detoxification services for heroin and examines risk factors for a subsequent return to the ED for a substance-related problem. Methods: A convenience sample of patients presenting for an overdose or detoxification at an urban teaching ED was recruited for this study. During their ED visit, patients were interviewed regarding demographics, substance use experiences, and treatment history. Subsequently, a review of patient records for past and subsequent ED use was performed. Results: Patients requesting detox and those with an overdose were similar in terms of prior treatment. Both groups had similar extensive polysubstance histories. As a group, however, patients presenting for detox were more likely to report use of each of three substances (benzodiazepines, opioid pain medications, and heroin) more than three times per week, compared to those presenting for overdose. Detox patients had higher scores on the 3-item Alcohol Use Disorder Identification Test-C and the drug problems scale compared to overdose patients. Overall, 28% of the patients returned to the ED within 90 days for a drug-related issue, including 8% that returned for an overdose. Factors predictive of a return ED visit included ED visits for substance use in the previous year and recent frequent heroin use. Conclusion: Patients requesting detox were similar in most domains to those presenting following an overdose. Notably, overdose patients were less likely to use heroin more than three times per week compared to detox patients. Both groups were equally likely to return for an SUD reason within 3-months, however for both groups, previous ED visits and recent frequent heroin use predicted a return visit.

Fixed dose ketamine for prehospital management of hyperactive delirium with severe agitation.

INTRODUCTION: Patients exhibiting signs of hyperactive delirium with severe agitation (HDSA) may require sedating medications for stabilization and safe transport to the hospital. Determining the patient's weight and calculating the correct weight-based dose may be challenging in an emergency. A fixed dose ketamine protocol is an alternative to the traditional weight-based administration, which may also reduce dosing errors. The objective of this study was to evaluate the frequency and characteristics of adverse events following pre-hospital ketamine administration for HDSA. METHODS: Emergency Medical Services (EMS) records from four agencies were searched for prehospital ketamine administration. Cases were included if a 250 mg dose of ketamine was administered on standing order to an adult patient for clinical signs consistent with HDSA. Protocols allowed for a second 250 mg dose of ketamine if the first dose was not effective. Both the 250 mg initial dose and the total prehospital dose were analyzed for weight based dosing and adverse events. RESULTS: Review of 132 cases revealed 60 cases that met inclusion criteria. Patients' median weight was 80 kg (range: 50-176 kg). No patients were intubated by EMS, one only requiring suction, three required respiratory support via bag valve mask (BVM). Six (10%) patients were intubated in the emergency department (ED) including the three (5%) supported by EMS via BVM, three (5%) others who were sedated further in the ED prior to requiring intubation. All six patients who were intubated were discharged from the hospital with a Cerebral Performance Category (CPC) 1 score. The weight-based dosing equivalent for the 250 mg initial dose (OR: 2.62, CI: 0.67-10.22) and the total prehospital dose, inclusive of the 12 patients that were administered a second dose, (OR: 0.74, CI: 0.27, 2.03), were not associated with the need for intubation. CONCLUSION: The 250 mg fixed dose of ketamine was not >5 mg/kg weight-based dose equivalent for all patients in this study. Although a second 250 mg dose of ketamine was permitted under standing orders, only 12 (20%) of the patients were administered a second dose, none experienced an adverse event. This indicates that the 250 mg initial dose was effective for 80% of the patients. Four patients with prehospital adverse events likely related to the administration of ketamine were found. One required suction, three (5%) requiring BVM respiratory support by EMS were subsequently intubated upon arrival in the ED. All 60 patients were discharged from the hospital alive. Further research is needed to determine an optimal single administration dose for ketamine in patients exhibiting signs of HDSA, if employing a standardized fixed dose medication protocol streamlines administration, and if the fixed dose medication reduces the occurrence of dosage errors.

Does Mixing Activated Charcoal With Cola Improve Tolerability Without Affecting Pharmacokinetics? A Randomized Controlled Crossover Trial.

INTRODUCTION: Activated charcoal is the most common form of gastrointestinal decontamination used for the poisoned patient. One limitation to its use is patient tolerability due to palatability. Some recommend mixing activated charcoal with cola to improve palatability. An important question is whether mixing activated charcoal with cola affects the ability of the activated charcoal to adsorb xenobiotic. METHODS: This was a prospective randomized controlled crossover trial. Five healthy adults aged 18 to 40 years were recruited. Participants received 45 mg/kg acetaminophen rounded down to the nearest whole tablet. One hour later, they were randomized to receive 50 g of an activated charcoal-water premixture alone or mixed with cola. Acetaminophen levels were collected. The area under the curve of acetaminophen concentrations over time was measured as a marker for degree of absorption. Participants also completed an appeal questionnaire in which they rated the activated charcoal preparations. Participants would then return after at least 7 days to repeat the study with the other activated charcoal preparation. RESULTS: Four male participants and 1 female participant were recruited. There was no statistical difference in preference score for activated charcoal alone versus the cola-activated charcoal mixture. There was no statistical difference in the area under the curve of acetaminophen concentrations over time between activated charcoal alone and the cola-activated charcoal mixture. Of note, the study is limited by the small sample size, limiting its statistical power. DISCUSSION: The absorption of acetaminophen in an overdose model is no different when participants received activated charcoal alone or a cola-activated charcoal mixture as suggested by area under the curve. In this small study, there was no difference in preference for activated charcoal alone or a cola-activated charcoal mixture across a range of palatability questions. On an individual level, some participants preferred the activated charcoal-cola mixture, and some preferred the activated charcoal alone.

Comparing Hypothermic and Thermal Neutral Conditions to Induce Metabolic Suppression.

Suppressing metabolism in astronauts could decrease CO2 production. It is unknown whether active cooling is required to suppress metabolism in sedated patients. We hypothesized that hypothermia would have an additive effect with dexmedetomidine on suppressing metabolism. This is a randomized crossover trial of healthy subjects receiving sedation with dexmedetomidine and exposure to a cold (20°C) or thermal neutral (31°C) environment for 3 hours. We measured heart rate, blood pressure, core temperature, resting oxygen consumption (VO2), resting carbon dioxide production (VCO2), and resting energy expenditure (REE) at baseline and each hour of exposure to either environment. We also evaluated components of the Defense Automated Neurobehavioral Assessment (DANA) Brief to evaluate the effect of metabolic suppression on cognition. Six subjects completed the study. Heart rate and core temperature were lower during the cold (56 bpm) condition than the thermal neutral condition (67 bpm). VO2, VCO2, and REE decreased between baseline and the 3-hour measurement in the cold condition (Δ = 0.9 mL/min, 56.94 mL/min, 487.9 Kcal/D, respectively). DANA simple response time increased between baseline and start of recovery in both conditions (20°C 136.9 cognitive efficiency [CE] and 31°C 87.83 CE). DANA procedural reaction time increased between baseline and start of recovery in the cold condition (220.6 CE) but not in the thermal neutral condition. DANA Go/No-Go time increased between baseline and start of recovery in both conditions (20°C 222.1 CE and 31°C 122.3 CE). Sedation and cold environments are required for metabolic suppression. Subjects experienced decrements in cognitive performance in both conditions. A significant recovery period may be required after metabolic suppression before completing mission critical tasks.

Social Determinants of Health in EMS Records: A Mixed-methods Analysis Using Natural Language Processing and Qualitative Content Analysis.

Introduction: Social determinants of health (SDoH) are known to impact the health and well-being of patients. However, information regarding them is not always collected in healthcare interactions, and healthcare professionals are not always well-trained or equipped to address them. Emergency medical services (EMS) professionals are uniquely positioned to observe and attend to SDoH because of their presence in patients' environments; however, the transmission of that information may be lost during transitions of care. Documentation of SDoH in EMS records may be helpful in identifying and addressing patients' insecurities and improving their health outcomes. Our objective in this study was to determine the presence of SDoH information in adult EMS records and understand how such information is referenced, appraised, and linked to other determinants by EMS personnel. Methods: Using EMS records for adult patients in the 2019 ESO Data Collaborative public-use research dataset using a natural language processing (NLP) algorithm, we identified free-text narratives containing documentation of at least one SDoH from categories associated with food, housing, employment, insurance, financial, and social support insecurities. From the NLP corpus, we randomly selected 100 records from each of the SDoH categories for qualitative content analysis using grounded theory. Results: Of the 5,665,229 records analyzed by the NLP algorithm, 175,378 (3.1%) were identified as containing at least one reference to SDoH. References to those SDoH were centered around the social topics of accessibility, mental health, physical health, and substance use. There were infrequent explicit references to other SDoH in the EMS records, but some relationships between categories could be inferred from contexts. Appraisals of patients' employment, food, and housing insecurities were mostly negative. Narratives including social support and financial insecurities were less negatively appraised, while those regarding insurance insecurities were mostly neutral and related to EMS operations and procedures. Conclusion: The social determinants of health are infrequently documented in EMS records. When they are included, they are infrequently explicitly linked to other SDoH categories and are often negatively appraised by EMS professionals. Given their unique position to observe and share patients' SDoH information, EMS professionals should be trained to understand, document, and address SDoH in their practice.

Transport Rates and Prehospital Intervals for an EMS Telemedicine Intervention.

INTRODUCTION: Emergency medical services (EMS) facilitated telemedicine encounters have been proposed as a strategy to reduce transports to hospitals for patients who access the 9-1-1 system. It is unclear which patient impressions are most likely able to be treated in place. It is also unknown if the increased time spent facilitating the telemedicine encounter is offset by the time saved from reducing the need for transport. The objective of this study was to determine the association between the impressions of EMS clinicians of the patients' primary problems and transport avoidance, and to describe the effects of telemedicine encounters on prehospital intervals. METHODS: This was a retrospective review of EMS records from two commercial EMS agencies in New York and Tennessee. For each EMS call where a telemedicine encounter occurred, a matched pair was identified. Clinicians' impressions were mapped to the corresponding category in the International Classification of Primary Care, 2nd edition (ICPC-2). Incidence and rates of transport avoidance for each category were determined. Prehospital interval was calculated as the difference between the time of ambulance dispatch and back-in-service time. RESULTS: Of the 463 prehospital telemedicine evaluations performed from March 2021 to April 2022, 312 (67%) avoided transports to the hospital. Respiratory calls were most likely to result in transport avoidance (p = 0.018); no other categories had statistically significant transport rates. Four hundred sixty-one (99.6%) had matched pairs identified and were included in the analysis. When compared to the matched pair, telemedicine without transport was associated with a prehospital interval reduction in 68% of the cases with a median reduction of 16 min; this is significantly higher than telemedicine with transport when compared to the matched pair with a median interval increase in 27 min. Regardless of transport status, the prehospital interval was a median of 4 min shorter for telemedicine encounters than non-telemedicine encounters (p = 0.08). CONCLUSION: In this study, most telemedicine evaluations resulted in ED transport avoidance, particularly for respiratory issues. Telemedicine interventions were associated with a median four-minute decrease in prehospital interval per call. Future research should investigate the long-term effects of telemedicine on patient outcomes.

A Qualitative Analysis of the Experiences of EMS Clinicians in Recognizing and Treating Witnessed Cardiac Arrests.

BACKGROUND: Survival from out of hospital cardiac arrest (OHCA) increases when effective cardiopulmonary resuscitation (CPR) and defibrillation are performed early. Patients who suffer OHCA in front of emergency medical services (EMS) clinicians have greater likelihood of survival, but little is known about how EMS clinicians think about and experience those events. We sought to understand how EMS clinicians assessed patients who devolved to cardiac arrest in their presence and uncover the perceived barriers and facilitators associated with recognizing and treating witnessed OHCAs. METHODS: EMS clinicians who had attended an EMS-witnessed OHCA and consented to participate were interviewed within 72 hours of the index case. Transcripts of the interviews were coded through the consolidated framework for implementation research to understand enabling and constraining factors involved and the predictability and anticipation of OHCA and subsequent management of patient care. Utstein data points, interventions, and associated times were extracted from the medical records. RESULTS: We interviewed 29 EMS clinicians who attended 27 EMS-witnessed OHCAs. Twenty-six (96.3%) of the EMS-witnessed OHCAs were preceded by prodromal symptoms and were classified as predictable. Of the predictable cases, clinicians anticipated 53.8% of them and attributed the prodromes of other cases to serious but not peri-arrest etiologies. Participants described various environmental, crew, and intrapersonal enabling and constraining factors associated with recognizing and treating EMS-witnessed OHCAs. Environmental elements included issues of safety and physical locations, crew elements included familiarity with their partners and working with them in the past, and intrapersonal elements included abilities to collect information and stress associated with responding to and managing the calls. CONCLUSION: Recognition and treatment of EMS-witnessed OHCAs are influenced by numerous environmental, crew, and intrapersonal factors. Future training and education on OHCA should include diverse locations, situations, and crew make-up, along with nontraditional patient complaints to broaden experiences associated with cardiac arrest management.

Eating Patterns among Emergency Medical Service Providers in the United States: A Qualitative Interview Study.

Emergency medical service (EMS) providers experience demanding work conditions in addition to shift work, which increases risk for nutrition related chronic disease such as metabolic syndrome, diabetes, obesity, and cardiovascular disease. The high stress, emergent, and unpredictable nature of EMS may interfere with healthy eating patterns on and off shift, however little is known about how these conditions impact dietary patterns among EMS providers. This study aimed to understand factors impacting dietary patterns through semi-structured interviews with 40 EMS providers throughout the United States. Interviews were conducted virtually via Zoom video conference. Inductive coding was used to identify themes throughout the interviews. Salient factors mentioned in the interviews included hunger, fatigue, stress, coworker influence, ambulance posting, geographical location, agency policy, and culture. Factors were grouped into 4 domains: physiological factors, psychosocial factors, physical environment, and organizational environment, represented by an adapted version of the social ecological model of health behaviors to include factors influencing eating patterns specific to EMS, which may contribute to overall health. Various barriers to healthy eating exist within EMS, and future studies should explore interventions at each level of our proposed model to improve conditions and reduce nutrition related disease risk in this essential population.

Physical symptoms provoked by normobaric hot and humid disabled pressurized rescue module scenarios.

We tested the hypothesis that thermal discomfort will be greater, mood will be worse, and physical symptoms of heat illness will be exacerbated with elevations in dry bulb temperature during exposure to >95% relative humidity disabled pressurized rescue module simulation. On three occasions, 15 healthy males (23 ± 3 years) sat in 32.1 ± 0.1°C, 33.1 ± 0.2°C or 35.0 ± 0.1°C, and 95 ± 2% relative humidity normobaric environments for eight hours. Thermal discomfort (visual analog scale), mood (profile of mood states), and physical symptoms of heat illness, ear-nose-throat, and muscle discomfort (environmental symptoms questionnaire) were assessed before and following each hour of exposure. Thermal discomfort was greater throughout the exposure in 35°C versus both 32°C and 33°C (p ≥ 0.03) and did not differ between the latter conditions (p ≥ 0.07). Mood worsened over time in all trials (p ≺ 0.01) and was worse in 35°C compared to 32°C and 33°C after five hours of exposure (p ≤ 0.05). Heat illness symptoms increased over time in all trials and was greater in 35°C versus 32°C and 33°C throughout the exposure (p ≤ 0.04). Ear-nose-throat and muscle discomfort symptoms increased over time in all trials (p < 0.01) and were higher in 35°C versus 32°C and 33°C after the sixth hour of exposure (p ≤ 0.02). In support of our hypothesis, mood was worse, physical symptoms of heat illness, and ear-nose-throat and muscle discomfort symptoms were exacerbated, and thermal discomfort was greater with elevations in dry bulb temperature during an eight-hour exposure to a >95% relative humidity disabled PRM simulation.

Thermoregulation during a six-hour exposure to warm, humid hyperbaric conditions.

Purpose: In a disabled submarine scenario, a pressurized rescue module (PRM) may be deployed to rescue survivors. If the PRM were to become disabled, conditions could become hot and humid exposing the occupants to heat stress. We tested the hypothesis that the rise in core temperature and fluid loss from sweating would increase with rising dry bulb temperature. Methods: Twelve males (age 22 ± 3 years; height 179 ± 7 cm; mass 77.4 ± 8.3 kg) completed this study. On three occasions, subjects were exposed to high humidity and either 28-, 32-, or 35˚C for six hours in a dry hyperbaric chamber pressurized to 6.1 msw. Changes in core temperature (Tc) and body mass were recorded and linear regression lines fit to estimate the predicted rise in Tc and loss of fluid from sweating. Results: Heart rate was higher in the 35°C condition compared to the 28°C and 32°C conditions. Tc was higher in the 32°C condition compared to 28°C and higher in 35°C compared to the 28˚°C and 32°C conditions. Projected fluid loss in all of the tested conditions could exceed 6% of body mass after 24 hours of exposure endangering the health of sailors in a DISSUB or disabled PRM. A fluid intake of 1.0 to 3.5 L would be required to limit dehydration to 2% or 4% of initial mass depending upon condition. Conclusions: Prolonged exposure to 35°C conditions under pressure results in uncompensable heat stress. 32°C and 35°C exposures were compensable under these conditions but further research is required to elucidate the effect of increased ambient pressure on thermoregulation.

Implementing a Novel Statewide Network to Support Emergency Department-initiated Buprenorphine Treatment.

INTRODUCTION: Medications for opioid use disorder (MOUD), including buprenorphine, represent an evidence-based treatment that supports long-term recovery and reduces risk of overdose death. Patients in crisis from opioid use disorder (OUD) often seek care from emergency departments (ED). The New York Medication for Addiction Treatment and Electronic Referrals (MATTERS) network is designed to support ED-initiated buprenorphine and urgent referrals to long-term care for patients suffering from OUD. METHODS: Using the PRECEDE-PROCEED implementation science framework, we provide an overview of the creation of the MATTERS network in Western New York. We also include an explanation of how the network was designed and launched as a response to the opioid epidemic. Finally, we analyzed the program's outputs and outcomes, thus far, as it continues to grow across the state. RESULTS: The New York MATTERS network was created and implemented in 2019 with a single hospital referring patients with OUD to three local clinics. In the social assessment and situational analysis phase, we describe the opioid epidemic and available resources in the region at the outset of the program. In the epidemiological assessment phase, we quantify the epidemic on the state and regional levels. In the educational and ecological assessment, we review local ED practices and resources. In the administrative and policy assessment and intervention alignment phase, the program's unique framework is reviewed. In the piloting phase, we describe the initial deployment of New York MATTERS. Finally, in the process evaluation phase, we depict the early lessons we learned. By the beginning of 2021, the New York MATTERS network included 35 hospitals that refer to 47 clinics throughout New York State. CONCLUSION: The New York MATTERS network provides a structured approach to reduce barriers to ED-initiated buprenorphine and urgent referral to long-term care. An implementation framework provides a structured means of evaluating this best practice model.

Prehospital Providers' Perspectives about Online Medical Direction in Emergency End-of-Life Decision-Making.

Background: End-of-life treatment decisions present special challenges for prehospital emergency providers. Paramedics regularly make value-laden choices that transcend technical judgment and professional skill, affecting the type of care, how and to whom it is provided. Changes in prehospital emergency care over the last decade have created new moral challenges for prehospital emergency providers; these changes have also accentuated the need for paramedics to make rapid and reasoned ethical judgments. Objective: The purpose of the study was to explore the decision-making process that occurs when prehospital emergency teams respond to an end-of-life call with a focus on how state authorized documents such as a Non-Hospital Do Not Resuscitate (NHDNR) or Medical/Physician's Orders for Life-Sustaining Treatment (MOLST/POLST) or lack thereof inform decision-making. This paper presents the specific circumstances that informed the need for intervention from Online Medical Direction (OLMD) framed in the perspectives and words of the prehospital providers seeking that assistance. Methods: This study involved in-depth in-person interviews with 50 providers to elicit participants' experiences in their own words using a semi-structured interview instrument. Interviews were audio recorded and transcribed with permission. Results: Five themes emerged that illuminated how and when OLMD was involved in emergency end-of-life decisions: Termination of Resuscitation (TOR); Family Revoked DNR; Missing Documents; No Documents and No CPR; and Unusual Situations. Participants illustrated how the decision to terminate efforts was best-supported when it was made by collaboration between the on-scene provider and OLMD. Participants described ethical dilemmas when families asked them to initiate CPR in the presence of DNR orders and cognitive dissonance when CPR has been initiated but a valid DNR/MOLST is subsequently located. Conclusions: The study findings demonstrate the invaluable contribution of OLMD for complex end-of-life care decisions by prehospital providers, especially when there are difficult legal, ethical, and logistical questions. OLMD provides far more than technical support.

The EMS Modified Early Warning Score (EMEWS): A Simple Count of Vital Signs as a Predictor of Out-of-Hospital Cardiac Arrests.

Objective: For patients at risk for out-of-hospital cardiac arrest (OHCA) after Emergency Medical Services (EMS) arrival, outcomes may be mitigated by identifying impending arrests and intervening before they occur. Tools such as the Modified Early Warning Score (MEWS) have been developed to determine the risk of arrest, but involve relatively complicated algorithms that can be impractical to compute in the prehospital environment. A simple count of abnormal vital signs, the "EMS Modified Early Warning Score" (EMEWS), may represent a more practical alternative. We sought to compare to the ability of MEWS and EMEWS to identify patients at risk for EMS-witnessed OHCA.Methods: We conducted a retrospect analysis of the 2018 ESO Data Collaborative database of EMS encounters. Patients without cardiac arrest before EMS arrival were categorized into those who did or did not have an EMS-witnessed arrest. MEWS was evaluated without its temperature component (MEWS-T). The performance of MEWS-T and EMEWS in predicting EMS witnessed arrest was evaluated by comparing receiver-operating characteristic curves.Results: Of 369,064 included encounters, 4,651 were EMS witnessed arrests. MEWS-T demonstrated an area under the curve (AUC) of 0.79 (95% CI: 0.79 - 0.80), with 86.8% sensitivity and 51.0% specificity for MEWS-T ≥ 3. EMEWS demonstrated an AUC of 0.74 (95% CI: 0.73 - 0.75), with 81.3% sensitivity and 53.9% specificity for EMEWS ≥ 2.Conclusions: EMEWS showed a similar ability to predict EMS-witnessed cardiac arrest compared to MEWS-T, despite being significantly simpler to compute. Further study is needed to evaluate whether the implementation of EMEWS can aid EMS clinicians in anticipating and preventing OHCA.