Prehospital Emergency Care最新文献

Objectives: Prehospital notification is crucial for reducing door-to-reperfusion time in patients with acute ischemic stroke (AIS). However, evidence remains limited regarding the real-world effectiveness of smartphone-based prenotification systems, particularly when considering variations in system activation and utilization. In Daegu, a metropolitan city in South Korea, a mobile application-based prenotification system has been implemented to streamline acute stroke care. This study aims to analyze the effect of the pre-notification system on the reduction of treatment time delay in acute ischemic stroke.

Methods: This retrospective observational before-and-after study was conducted in Daegu, South Korea. The "before" period spanned December 2018 to November 2019, and the "after" period spanned December 2020 to November 2021. Patients diagnosed with AIS (first abnormal time < 6 h) who arrived at the emergency department via emergency medical service at five hospitals were included. Patients were divided into three groups based on the use of a smartphone application (FASTroke) before and after implementing the prehospital AIS notification system. Outcomes of time variables related to ischemic stroke management included scene-to-door time, Door-to-CT scan time (DTC), Door-to-intravenous thrombolysis time (DTI), and Door-to-endovascular thrombectomy time (DTE). The effect of FASTroke implementation on achieving the target time was analyzed through multivariable logistic regression analysis.

Results: Among the 553 patients included in the final analysis, 177 were managed using the FASTroke system. Compared to the before group, the group that used FASTroke during the after period had significantly shorter DTC (23.0-20.0 min, p < 0.001), DTI (42.5-36.0 min, p = 0.044), and DTE (95.5-87.0 min, p = 0.049). Time reduction was even greater with hospital preregistration, including DTC (14.0 min), DTI (33.0 min), and DTE (66.5 min). Logistic regression revealed that FASTroke use significantly increased the odds of achieving DTC < 20 min (adjusted odds ratio 1.971; 95% confidence interval (CI), 1.319-2.945) and DTE < 90 min (aOR 2.010; 95% CI, 1.014-3.985), with even higher odds in the preregistration subgroup.

Conclusions: The FASTroke system significantly improved in-hospital treatment timelines-DTC, DTI, and DTE-particularly through its preregistration feature.

Wildland fire in the United States has evolved into a sustained public health emergency with direct and escalating implications for emergency medical services (EMS). Once viewed primarily as a forestry issue, modern wildfire is now driven by climate change, decades of fuel accumulation, expansion of the wildland-urban interface, and ecosystem degradation. Fire seasons have lengthened into year-round events, generating substantial health impacts and placing severe strain on out-of-hospital systems. The population health consequences of wildfire exposure are extensive. Acute smoke inhalation increases asthma exacerbations, chronic obstructive pulmonary disease presentations, cardiovascular events, and premature mortality. Repeated or chronic exposure contributes to long-term pulmonary dysfunction, elevated malignancy risk, and behavioral health morbidity. Children, older adults, individuals with preexisting conditions, and socioeconomically disadvantaged communities experience disproportionate harm. Simultaneously, wildfires cause surges in EMS call volume while disrupting communications, transportation, and access to definitive care. Prehospital clinicians and responders also face significant occupational hazards, including extreme heat, prolonged particulate exposure, musculoskeletal trauma, behavioral health stressors, and an elevated risk of sudden cardiac death. As EMS agencies are increasingly tasked with austere fireground support, extended evacuations, and prolonged operations, the role of EMS physicians becomes critical. However, despite the scale of these challenges, prehospital physicians are often underrepresented in regional wildfire mitigation, preparedness, and resilience planning. National recommendations now call for a strategic shift from reactive suppression to proactive, interdisciplinary collaboration. Prehosptial physicians are uniquely positioned to integrate clinical care, disaster medicine, occupational health, and community preparedness. Their leadership is essential to ensure EMS integration into community wildfire protection plans; to strengthen occupational and mental health support for responders; to guide wildfire-specific training, triage, and protocol development; and to inform public education efforts. Prehospital physicians must also advocate for policies that incorporate out-of-hospital perspectives into resilience funding and mitigation initiatives. In summary, wildland fire is a chronic societal crisis with expanding health and EMS implications. Meeting this challenge requires prehospital physicians to broaden their roles as clinicians, educators, advocates, and policy leaders to support a more fire-adapted and resilient future.

Objectives: Emergency medical services (EMS) clinicians' management of agitated patients have recently been highlighted by several high-profile events and the update of a National Association of EMS Physicians (NAEMSP) Position Statement. Our objective was to assess changes in EMS statewide treatment protocols (STP) for agitation over a 7-year period considering these events.

Methods: We performed a cross-sectional review of STPs in the U.S. in 2018 and 2025. We examined protocols related to agitation and extracted data regarding 11 recommendations from the NAEMSP Position Statement, including 1) specific protocols, 2) a standardized agitation score, 3) assessment for medical causes of agitation, 4) do not restrain a patient solely by law enforcement request, 5) verbal de-escalation, 6) physical restraint protocol, 7) pharmacologic management protocol, 8) prohibited restraint techniques, 9) patient monitoring, 10) prioritization of EMS clinician safety, and 11) when law enforcement should be involved. We calculated the proportion of states with each protocol recommendations. An EMS Physician adjudicated any discrepancies in data collection.

Results: There were 29 STPs in 2018 and 31 STPs in 2025. Between 2018 and 2025, a larger proportion of STPs with 10 of the 11 recommendations: standardized agitation score (10% vs 29%), assessment for medical causes of agitation (90% vs 97%), do not restrain a patient solely by law enforcement request (0% vs 16%), verbal de-escalation (66% vs 100%), physical restraint protocol (97% vs 100%), pharmacologic management protocol (97% vs 100%), prohibited restraint techniques (72% vs 80%), patient monitoring (55% vs 71%), prioritization of clinician safety (93% vs 97%), and when law enforcement should be involved (76% vs 81%). The proportion of STPs with specific protocols for agitated patients remained similar between 2018 and 2025 (97% vs 97%). Three states included all 11 assessed recommendations from the revised NAEMSP Position Statement.

Conclusions: Changes from 2018 to 2025 in STPs reflect limited implementation of recently updated national guidelines, including increased recommendations for verbal de-escalation, limited recommendations for objective agitation assessment and patient monitoring, and increased recommendations for use of ketamine. Based on our findings, STPs have an opportunity to align with national recommendations on agitation management.

Objectives: Severe traumatic brain injury (TBI) is a leading cause of mortality among the pediatric population, and the impact of emergency medical services (EMS) prehospital times on patient survival remains unclear. The objective of this study was to determine associations between EMS time-on-scene and mortality during transport (i.e., dead-on-arrival [DOA] status) among pediatric patients with severe TBI. We also sought to investigate potential effects of social determinants of health on prehospital care practices.

Methods: This was a retrospective cohort study using data from the American College of Surgeons Trauma Quality Improvement Program (2017-2022). Pediatric (<18 years old) patients with severe (Glasgow Coma Scale ≤8) TBI were included in our analyses. We constructed a hierarchical logistic regression model for associations with DOA status. Expecting a potential non-linear relationship between EMS time on scene and odds of presenting DOA, we trained a random forest model to predict survival probability as a function of time on scene and visualized the results with a locally estimated scatterplot smoothing (LOESS) plot. Secondary analyses were performed to investigate demographic associations with EMS time on scene and dispatch of a helicopter ambulance.

Results: Among 1,225 pediatric patients with severe TBI (median age, 13 years), 5.6% (N = 69) presented with DOA status. Longer EMS time on scene was associated with decreased odds of DOA (odds ratio [OR], 0.92; 95% CI, 0.85-0.99; p = 0.025). The LOESS plot revealed a non-linear relationship between EMS time on scene and survival probability, with EMS times associated with increasing survival up to approximately 12 min, then plateauing and subsequently decreasing. Black and Hispanic patients experienced shorter EMS scene times (p = 0.008 and p = 0.018, respectively), and all non-White patients had lower odds of air medical service dispatch (all p < 0.001).

Conclusions: Longer EMS time on scene, to a certain point, was associated with lower odds of presenting DOA among pediatric patients with severe TBI, potentially due to increased stabilization measures performed on scene. These results challenge the assumption that expedited transport to a trauma center alone optimizes patient outcomes. Moreover, racial disparities in EMS scene times and ambulance dispatch type highlight a need for further research into prehospital care practices.

Objectives: Patients living in residential aged care homes (RACH) frequently experience acute health episodes prompting contact with emergency medical services (EMS). To improve health care access and reduce unnecessary emergency department (ED) presentations, a referral pathway to the Victorian Virtual ED (VVED) was introduced to EMS secondary triage (comprehensive telephone-based assessment of lower acuity cases). This study evaluates the impact of the pathway on referral outcomes, ED diversion, and patient safety indicators.

Methods: A retrospective cohort study of patients living in RACH who underwent EMS secondary triage in Victoria, Australia was conducted. Data were compared between an 18-month pre-implementation period and an 18-month post-implementation period following the introduction of the referral pathway. Descriptive analyses, interrupted time-series and multivariable logistic regression were used to assess changes in referral outcomes, ED diversion, and recontact within 72 h.

Results: A total of 59,546 secondary triage cases from RACH were included. Referrals to alternate care pathways increased from 6.8% pre-implementation to 11.2% post-implementation, largely driven by referrals to the VVED (6.7%), while ED diversion also increased (18.7% to 28.9%). Interrupted time-series analysis showed introduction of the VVED pathway was associated with an increase in referrals to alternate care pathways (IRR: 1.349 (95%CI: 1.182, 1.539)). In the post-implementation period, referral to the VVED was associated with increased age (AOR 1.12 (95%CI: 1.04,1.20), per 10 year increase), metropolitan event location (AOR 1.18 (95%CI: 1.04,1.34), compared with regional location), out-of-hours calls (AOR 1.55 (95%CI: 1.39,1.72), compared with calls between 0800 and 1700), complaints of external injury (AOR 1.50 (95%CI: 1.13, 1.98) compared with generally unwell), and lower acuity care timeframes (AOR 19.13 (95%CI: 15.01, 24.39) compared with recommendation for immediate care). Seventy-two-hour recontact to EMS increased, from 3.1% to 3.5% (p = 0.002) while lights and sirens transports to ED remained stable (2.5%).

Conclusions: The introduction of the VVED referral pathway to secondary triage was associated with increased use of alternate care pathways and a significant increase in ED diversion for RACH residents. Specific patient and call time characteristics were associated with VVED referral, suggesting the VVED has a targeted role in meeting access needs out of hours and for select clinical presentations.

We present the case of an 18-year-old male who was found unresponsive at home with profound cyanosis and shock. On-site suspicion of methemoglobinemia -suggested by chocolate-colored blood1 and refractory hypoxemia despite 100% oxygen - prompted early administration of methylene blue by emergency medical services. A second dose of methylene blue was given after patient's admission at the emergency department, resulting in a marked reduction in methemoglobin levels and rapid clinical improvement. This case highlights the importance of early recognition of toxicologic emergencies and timely administration of antidotes, including in the prehospital setting. It also underscores the need for ongoing education and training of health care professionals - especially first responders - on the identification and management of acute intoxications.

Objectives: This study aims to characterize the national prehospital trends in primary supraglottic airway use in non-cardiac arrest patients with various methods, including rapid sequence airway (RSA), defined as administration of a sedative and paralytic to facilitate supraglottic airway (SGA) placement. We compared this SGA-first practice to other methods of prehospital airway management.

Methods: This was a retrospective analysis of a national emergency medical services (EMS) database containing 9-1-1 calls over a five-year period. Only ALS-level calls were included. We compared the incidence of SGA- and tracheal-intubation-first attempts by paramedics. We excluded interfacility transfers, patients in or near cardiac arrest, and surgical airways before intubation.

Results: There were 355,511 encounters with endotracheal tube (ETT) or SGA placement, of which 316,392 patients were excluded, most commonly for cardiac arrest and peri-cardiac arrest, leaving 36,058 (92%) managed with tracheal intubation first and 3,061 (8%) managed with a SGA first. Trauma was the primary reason for encounter for approximately 28% of both groups. SGA-first approaches increased over the five-year period from 3.5% to 8.7% of invasive airway attempts. The type of SGA changed substantially over the study period, with use of the iGel increasing (42% to 82%), and the King LTSD decreasing (50% to 14%). Neuromuscular blocking agents were used in 74% of encounters.

Conclusions: Among prehospital patients not in cardiac arrest, supraglottic airway devices comprise 8% of initial advanced airway management, with increasing use over time. Placement is usually facilitated by use of a sedative and neuromuscular blocking agent.

Objectives: On November 28, 2017, the fire at the Guadeloupe University Hospital created an exceptional health care crisis, due to the loss of critical care units, operating rooms, and emergency department at the island's main hospital. Large-scale air medical evacuations were organized to the University Hospital of Martinique, another nearby French island. This unprecedented event posed unique challenges in terms of feasibility and risks inherent to these emergency medical evacuations of critically ill patients.

Methods: It was a retrospective, observational, monocentric study, including all patients with initial medical care provided in Guadeloupe archipelago, Saint-Martin and Saint-Barthelemy islands and which required medical evacuation to the Martinique University Hospital during the following 6 wk after fire at the Guadeloupe University Hospital.

Results: During the study period, 93 patients were included which corresponds to 2.2 patients transferred per day, with a highest transfers occurred during the first week (n = 30). Median age was 52 [22-64] years-old, and 54 were male (58.1%). All transfers were conducted by air 58 patients were admitted in ICU (62.3%) and diseases were mainly cardiovascular (n = 18, 19.4%), neurosurgery (n = 16, 17.2%) and pediatric (n = 15, 16.1%). Nine patients (9.7%) experienced complications or clinical deterioration during air transfer. Median length of hospital stay was 11 [7-17] days. Seven patients died during hospitalization (7.5%) and 81 patients (87.1%) returned in home territories after care in Martinique.

Conclusions: This event demonstrates the feasibility of conducting multiple air medical evacuations during a health crisis in a French overseas territory, with the appropriate medical and logistical resources for the safety and quality of care for evacuated patients.