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Abstract Background The transport of patients from one location to another is a fundamental part of emergency medical services. However, little interest has been shown in the actual driving of the ambulance. Therefore, this review aimed to investigate how the driving of the ambulance affects the patient and the medical care provided in an emergency medical situation. Methods A systematic integrative review using both quantitative and qualitative designs based on 17 scientific papers published between 2011 and 2020 was conducted. Results Ambulance driving, both the actual speed, driving pattern, navigation, and communication between the driver and the patient, influenced both the patient’s medical condition and the possibility of providing adequate care during the transport. The driving itself had an impact on prehospital time spent on the road, safety, comfort, and medical issues. The driver’s health and ability to manage stress caused by traffic, time pressure, sirens, and disturbing moments also significantly influenced ambulance transport safety. Conclusions The driving of the ambulance had a potential effect on patient health, wellbeing, and safety. Therefore, driving should be considered an essential part of the medical care offered within emergency medical services, requiring specific skills and competence in both medicine, stress management, and risk approaches in addition to the technical skills of driving a vehicle. Further studies on the driving, environmental, and safety aspects of being transported in an ambulance are needed from a patient’s perspective.

Abstract Background Internationally increasing demand for emergency care is driving innovation within emergency services. The Alternative Pre-Hospital Pathway (APP) Team is one such Community Emergency Medicine (CEM) initiative developed in Cork, Ireland to target low acuity emergency calls. In this paper the inception of the APP Team is described, and an observational descriptive analysis of the APP Team’s service data presented for the first 12 months of operation. The aim of this study is to describe and analyse the APP team service. Methods The APP Team, consisting of a Specialist Registrar (SpR) in Emergency Medicine (EM) and an Emergency Medical Technician (EMT) based in Cork, covers a mixed urban and rural population of approximately 300,000 people located within a 40-min drive time of Cork University Hospital. The team are dispatched to low acuity 112/999 calls, aiming to provide definitive care or referring patients to the appropriate community or specialist service. A retrospective analysis was performed of the team’s first 12 months of operation using the prospectively maintained service database. Results Two thousand and one patients were attended to with a 67.8% non-conveyance rate. The median age was 62 years, with 33.0% of patients aged over 75 years. For patients over 75 years, the non-conveyance rate was 62.0%. The average number of patients treated per shift was 7. Medical complaints (319), falls (194), drug and alcohol related presentations (193), urological (131), and respiratory complaints (119) were the most common presentations. Conclusion Increased demand for emergency care and an aging population is necessitating a re-design of traditional models of emergency care delivery. We describe the Alternative Pre-Hospital Pathway service, delivered by an EMT and an Emergency Medicine SpR responding to low acuity calls. This service achieved a 68% non-conveyance rate; our data demonstrates that a community emergency medicine outreach team in collaboration with the National Ambulance Service offering Alternative Pre-Hospital Pathways is an effective model for reducing conveyances to hospital.

ObjectivesWe aimed to identify, appraise, and synthesise the qualitative literature to develop theory on heroism and paramedic practice.Hypothesis/research questionWhat does published literature tell us about heroism and paramedic practice?SettingParamedics and other healthcare workers (HCWs) faced an outpouring of public support for them early in the COVID-19 pandemic which brought into focus the relationship between them and society, where they are portrayed as heroes.ParticipantsWe conducted a metasynthesis using Evolved Grounded Theory and procedural guidelines of Noblit and Hare to guide analysis. Preferred Reporting Items for Systematic Reviews and Meta-analysis Protocols (PRISMA-P) guidelines were also applied.Results151 papers were retrieved and eleven included in the final sample. Studies were moderate to very low quality, involving a wide range of methodologies and settings; none specifically explored heroism and paramedic practice. The following interrelated themes were constructed on heroism and paramedic practice: (a) Myth, Folk law, and storytelling in heroism and paramedic practice (b) The epic journey of heroism and paramedic practice (c) Heroes and Zeroes: The fluctuating Societal Value in heroism and paramedic practice (d) Politicisation, and objectification in Heroism and Paramedic practice.ConclusionParamedics have long been characterised as heroes, but this may not reflect their everyday experiences. Heroism in paramedic practice can provide scripts for prosocial action, inspiring others, and leading to more social heroic actions. Paramedics may however be ambivalent to such heroism narratives, due to politicisation, and objectification in the media and society. This metasynthesis is only one of many possible constructions of heroism and paramedic practice and is the first point in making sense of and developing theory on heroism and paramedic practice.Study registrationPROSPERO: CRD42021234851.

Fixation using cephalomedullary nails (CMNs) with additional cement augmentation (CA) was developed as a novel treatment option for the osteosynthesis of osteoporotic trochanteric fractures, though the effectiveness of CA on early postoperative mobility remains uncertain. This multicenter prospective cohort study aimed to estimate the effectiveness of CA on early postoperative mobility in patients with trochanteric fractures. We enrolled patients with femoral trochanteric fractures aged >60 years who were able to walk independently before the injury. The primary outcome was the postoperative 3-day cumulated ambulation score (CAS); the secondary outcome was the visual analog scale (VAS) pain score at rest and during movement on postoperative days 1–3. The outcomes of the patients treated using CMNs with or without CA were compared. Sixty-three eligible patients were categorized into CA (n = 32) and control (n = 31) groups. In univariate analysis, the CA group had significantly higher CAS values, lower VAS scores at rest on day 1 postoperatively, and lower VAS scores during movement on day 3. In multivariable linear regression analyses, the CA group had significantly higher CAS values (beta, 2.1; 95% confidence interval, 0.5 to 3.6; p = 0.01). The CA group had a negative adjusted beta value in their VAS scores during movement. This study indicated that CA was associated with a high CAS value in patients with geriatric trochanteric fractures. However, CA was not associated with pain reduction at rest and during movement during the initial postoperative days. [ABSTRACT FROM AUTHOR]

A rough road surface produces strong or continuous vibration in an ambulance, which causes feeling of discomfort, severe pain or sometimes deterioration of physical condition to injured or ill persons. With the aim of reducing such harmful vibration for safe and reliable medical emergency transportation services, this paper proposes a method to find out rough road surfaces from drive data of ambulances and to give them the priority for future pavement repair. There are four steps in the prioritization process: The first step is to collect drive data including information on location, speed and vibration with a smartphone. According to ISO2631-1, the vibration is quantified as a running r.m.s of the frequency-weighted acceleration. In the second step, meaningless data such as small vibration and extremely slow speed data are removed. Then, depending on the location and the traveling direction of the ambulance when the data were recorded, the data form clusters, which are candidates of road repair zones. Finally, each cluster is prioritized by the evaluation function. The larger amount of strong-vibration and slow-speed data are included in the cluster, the higher priority is given to it. An example of application to three ambulances is presented. The high priority clusters were well matched to the road surfaces that the ambulance crews were aware of as strong vibration zones. It is also shown that at least one and a half months are required in collection of the drive data to decide on the top ten clusters.

Background: We aimed to investigate clinical benefits and economic costs of inhaled methoxyflurane when used by ambulance staff for prehospital emergency patients with trauma. Comparison is to usual analgesic practice (UAP) in the UK in which patient records were selected if treatment had been with Entonox® or intravenous morphine or intravenous paracetamol.Methods: Over a 12-month evaluation period, verbal numerical pain scores (VNPS) were gathered from adults with moderate to severe trauma pain attended by ambulance staff trained in administering and supplied with methoxyflurane. Control VNPS were obtained from ambulance database records of UAP in similar patients for the same period. Statistical modelling enabled comparisons of methoxyflurane to UAP, where we employed an Ordered Probit panel regression model for pain, linked by observational rules to VNPS.Results: Overall, 96 trained paramedics and technicians from the East Midlands Ambulance Service NHS Trust (EMAS) prepared 510 doses of methoxyflurane for administration to a total of 483 patients. Comparison data extracted from the EMAS database of UAP episodes involved: 753 patients using Entonox®, 802 patients using intravenous morphine, and 278 patients using intravenous paracetamol. Modelling results included demonstration of faster pain relief with inhaled methoxyflurane (all p-values < 0.001). Methoxyflurane's time to achieve maximum pain relief was estimated to be significantly shorter: 26.4 min (95%CI 25.0-27.8) versus Entonox® 44.4 min (95%CI 39.5-49.3); 26.5 min (95%CI 25.0-27.9) versus intravenous morphine 41.8 min (95%CI 38.9-44.7); 26.5 min (95%CI 25.1-28.0) versus intravenous paracetamol 40.8 (95%CI 34.7-46.9). Scenario analyses showed that durations spent in severe pain were significantly less for methoxyflurane. Costing scenarios showed the added benefits of methoxyflurane were achieved at higher cost, eg versus Entonox® the additional cost per treated patient was estimated to be £12.30.Conclusion: When administered to adults with moderate or severe pain due to trauma inhaled methoxyflurane reduced pain more rapidly and to a greater extent than Entonox® and parenteral analgesics. Inclusion of inhaled methoxyflurane to the suite of prehospital analgesics provides a clinically useful addition, but one that is costlier per treated patient. [ABSTRACT FROM AUTHOR]

It is estimated that 1.35 million people die each year as a result of road traffic injuries worldwide, with Africa having the highest annual rate. Ethiopia has the highest fatality rate in road traffic accidents, at 79%. There is no well-established emergency medical system in Ethiopia to provide pre-hospital trauma care. A crosssectional study was conducted at selected public hospitals in Addis Ababa. Purposive sampling was used to select the victims who arrived at the emergency department by ambulance. Data was gathered through structured questionnaires administered by an interviewer and a review of victims' medical records. SPSS Version 25 was used to analyze the data. In this study, 262 victims took part, with a 94% response rate. Patient positioning (50.8%) was the most commonly provided service, followed by bleeding control (43.5%). Within the first 24 hours, 8.4% of the victims died. The first 24-hours of injury-related death were significantly associated with head/neck/spine injury and total pre-hospital time. Action should be taken to increase the availability of necessary equipment in ambulances and the number of paramedic personnel. [ABSTRACT FROM AUTHOR]

Introduction: Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia and is a significant risk factor for stroke. Prescription of oral anticoagulant (OAC) medication reduces the risk of AF-related stroke by 64% – yet over 400,000 people in England have undiagnosed (and therefore untreated) AF. Emergency medical services (EMS) encounter a wide range of patients, some of whom may not engage with other healthcare services. AF may be detected by EMS in connection with the cause of the call, or as an incidental finding. While EMS are not traditionally utilised for public health screening, they may offer an opportunity to identify patients with undiagnosed or untreated AF and refer onward. This study aimed to explore what proportion of patients seen by EMS who were not transported to hospital had AF and to estimate how many would potentially benefit from OAC. Methods: A retrospective service evaluation was conducted using routinely collected data from a large UK regional ambulance service. The sample included adults attended by EMS on the 15th of each month in 2019, who were not transported to hospital and where an electrocardiogram was recorded. Of those with AF, we calculated the proportion in whom this was possibly new and report whether OAC was prescribed. Results: There were 859 patients who met the inclusion criteria, of whom 91 (11%) had AF documented. Of the 91 patients with AF, 23 (25%) had no documented history of AF or OAC prescription, so were potentially new diagnoses of AF, who would benefit from consideration of OAC therapy. Conclusion: The EMS assessment offers an opportunity for AF to be identified in patients who were not transported to hospital. EMS may have a role in primary prevention of harm, including stroke, by identifying and referring patients with AF for consideration of OAC. [ABSTRACT FROM AUTHOR]

Background: Pre-hospital and emergency services in Indonesia are still developing. Despite recent improvements in the Indonesian healthcare system, issues with the provision of pre-hospital and emergency services persist. The demand for pre-hospital and emergency services has not been the subject of previous research and, therefore, has not been fully understood. Our research explored the utilization of emergency medical services by patients attending hospital emergency departments in Jakarta, Indonesia.Methods: The study used a cross-sectional survey design involving five general hospitals (four government-funded and one private). Each patient's demographic profile, medical conditions, time to treatment, and mode of transport to reach the hospital were analysed using descriptive statistics.Results: A total of 1964 (62%) patients were surveyed. The median age of patients was 44 years with an interquartile range (IQR) of 26 to 58 years. Life-threatening conditions such as trauma and cardiovascular disease were found in 8.6 and 6.6% of patients, respectively. The majority of patients with trauma travelled to the hospital using a motorcycle or car (59.8%). An ambulance was used by only 9.3% of all patients and 38% of patients reported that they were not aware of the availability of ambulances. Ambulance response time was longer as compared to other modes of transportation (median: 24 minutes and IQR: 12 to 54 minutes). The longest time to treatment was experienced by patients with neurological disease, with a median time of 120 minutes (IQR: 78 to 270 minutes). Patients who used ambulances incurred higher costs as compared to those patients who did not use ambulances.Conclusion: The low utilization of emergency ambulances in Jakarta could be contributed to patients' lack of awareness of medical symptoms and the existence of ambulance services, and patients' disinclination to use ambulances due to high costs and long response times. The emergency ambulance services can be improved by increasing population awareness on symptoms that warrant the use of ambulances and reducing the cost burden related to ambulance use. [ABSTRACT FROM AUTHOR]

Background: The available literature on mobile stroke units (MSU) has focused on clinical outcomes, rather than operational performance. Our objective was to establish normalized metrics and to conduct a meta-analysis of the current literature on MSU performance. Methods: Our MSU in upstate New York serves 741,000 people. We present prospectively collected, retrospectively analyzed data from the inception of our MSU in October of 2018, through March of 2021. Rates of transportation/dispatch and MSU utilization were reported. We also performed a meta-analysis using MEDLINE, SCOPUS, and Cochrane Library databases, calculating rates of tPA/dispatch, tPA-per-24-operational-hours ("per day"), mechanical thrombectomy (MT)/dispatch and MT/day. Results: Our MSU was dispatched 1,719 times in 606 days (8.5 dispatches/24-operational-hours) and transported 324 patients (18.8%) to the hospital. Intravenous tPA was administered in 64 patients (3.7% of dispatches) and the rate of tPA/day was 0.317 (95% CI 0.150–0.567). MT was performed in 24 patients (1.4% of dispatches) for a MT/day rate of 0.119 (95% CI 0.074–0.163). The MSU was in use for 38,742 minutes out of 290,760 total available minutes (13.3% utilization rate). Our meta-analysis included 14 articles. Eight studies were included in the analysis of tPA/dispatch (342/5,862) for a rate of 7.2% (95% CI 4.8–9.5%, I2 = 92%) and 11 were included in the analysis of tPA/day (1,858/4,961) for a rate of 0.358 (95% CI 0.215–0.502, I2 = 99%). Seven studies were included for MT/dispatch (102/5,335) for a rate of 2.0% (95% CI 1.2–2.8%, I2 = 67%) and MT/day (103/1,249) for a rate of 0.092 (95% CI 0.046–0.138, I2 = 91%). Conclusions: In this single institution retrospective study and meta-analysis, we outline the following operational metrics: tPA/dispatch, tPA/day, MT/dispatch, MT/day, and utilization rate. These metrics are useful for internal and external comparison for institutions with or considering developing mobile stroke programs. [ABSTRACT FROM AUTHOR]

Background: Calls for emergency medical assistance at the scene of a motor vehicle crash (MVC) substantially contribute to the demand on ambulance services. Triage by emergency medical dispatch systems is therefore important, to ensure the right care is provided to the right patient, in the right amount of time. A lights and sirens (L&S) response is the highest priority ambulance response, also known as a priority one or hot response. In this context, over triage is defined as dispatching an ambulance with lights and sirens (L&S) to a low acuity MVC and under triage is not dispatching an ambulance with L&S to those who require urgent medical care. We explored the potential for crash characteristics to be used during emergency ambulance calls to identify those MVCs that required a L&S response.Methods: We conducted a retrospective cohort study using ambulance and police data from 2014 to 2016. The predictor variables were crash characteristics (e.g. road surface), and Medical Priority Dispatch System (MPDS) dispatch codes. The outcome variable was the need for a L&S ambulance response. A Chi-square Automatic Interaction Detector technique was used to develop decision trees, with over/under triage rates determined for each tree. The model with an under/over triage rate closest to that prescribed by the American College of Surgeons Committee on Trauma (ACS COT) will be deemed to be the best model (under triage rate of ≤ 5% and over triage rate of between 25-35%.Results: The decision tree with a 2.7% under triage rate was closest to that specified by the ACS COT, had as predictors-MPDS codes, trapped, vulnerable road user, anyone aged 75 + , day of the week, single versus multiple vehicles, airbag deployment, atmosphere, surface, lighting and accident type. This model had an over triage rate of 84.8%.Conclusions: We were able to derive a model with a reasonable under triage rate, however this model also had a high over triage rate. Individual EMS may apply the findings here to their own jurisdictions when dispatching to the scene of a MVC. [ABSTRACT FROM AUTHOR]

Background: Digitalization affects almost every aspect of modern daily life, including a growing number of health care services along with telemedicine applications. Fifth-generation (5G) mobile communication technology has the potential to meet the requirements for this digitalized future with high bandwidths (10 GB/s), low latency (<1 ms), and high quality of service, enabling wireless real-time data transmission in telemedical emergency health care applications. Objective: The aim of this study is the development and clinical evaluation of a 5G usability test framework enabling preclinical diagnostics with mobile ultrasound using 5G network technology. Methods: A bidirectional audio-video data transmission between the ambulance car and hospital was established, combining both 5G-radio and -core network parts. Besides technical performance evaluations, a medical assessment of transferred ultrasound image quality and transmission latency was examined. Results: Telemedical and clinical application properties of the ultrasound probe were rated 1 (very good) to 2 (good; on a 6 -point Likert scale rated by 20 survey participants). The 5G field test revealed an average end-to-end round trip latency of 10 milliseconds. The measured average throughput for the ultrasound image traffic was 4 Mbps and for the video stream 12 Mbps. Traffic saturation revealed a lower video quality and a slower video stream. Without core slicing, the throughput for the video application was reduced to 8 Mbps. The deployment of core network slicing facilitated quality and latency recovery. Conclusions: Bidirectional data transmission between ambulance car and remote hospital site was successfully established through the 5G network, facilitating sending/receiving data and measurements from both applications (ultrasound unit and video streaming). Core slicing was implemented for a better user experience. Clinical evaluation of the telemedical transmission and applicability of the ultrasound probe was consistently positive. [ABSTRACT FROM AUTHOR]

This paper presents real world acceleration data for an ambulance driving up and over a curb. A full scale reenactment was performed for a litigated case in which a patient on a gurney in an ambulance claimed a variety of bodily injuries after the ambulance struck a curb. A height and weight matched surrogate rode on the gurney during the tests. Results demonstrated that peak vehicle and occupant accelerations never exceeded 1.1 g's. To address the claimed injuries, the accelerations likely sustained by the patient were compared to those experienced during daily life. Since ambulances are wide vehicles that travel fast on potentially narrow arterial, collector or local roadways, curb or median impacts may occur during the normal course of driving. Thus, these results may be useful for forensic experts in dealing with similar cases involving claimed injuries following curb impacts. [ABSTRACT FROM AUTHOR]

Introduction: Establishment of strong emergency medical services (EMS) systems plays a pivotal role in reducing morbidity and mortality, especially in low and middle-income countries. We aimed to study the EMS utilization and resources available in the ambulances to deliver prehospital care among patients presenting to the Emergency Medicine Department in a tertiary care hospital in south India. Methods: Data regarding prehospital transport practices such as mode of arrival, utilization of EMS, resources available in the ambulance, presenting complaints, triage category, and demographic details were collected and analyzed. Subgroup analysis for time-sensitive complaints was done. Variables were subjected to univariate and multivariate analysis to find the predictors of ambulance usage. Results: The study included 3935 patients. The most common time-sensitive complaints were trauma (17%) and chest pain (11.5%). The most preferred mode of transport was the personal vehicle (45.6%). 29.8% of patients arrived in the ambulance. 97.7% of ambulances were not Advanced Cardiac Life Support equipped and 87.1% did not have an accompanying health care provider. 64.5% inter-hospital patient transfers were through ambulance, 83.8% transfers were unaccompanied. Among patients with time-sensitive complaints, EMS utilization was inadequate (46.8% in acute coronary syndrome, 34% in trauma, and 56.5% in early acute ischemic stroke). Conclusion: There was underutilization of the EMS services. Majority of the ambulances were not adequately equipped/staffed to deliver prehospital interventions. Policies at national level are required to encourage EMS utilization by the public and urgent measures are needed to improve services provided by them. [ABSTRACT FROM AUTHOR]

Background Emergency Medical Services (EMS) personnel are often the first to provide healthcare services to the patient in different situations outside the hospital. Due to the sensitivity of this work, knowledge of ambulance equipment can affect the performance of Emergency Medical Services personnel. Objective This study aims to assess the knowledge of pre-hospital EMS personnel in Rasht, Iran about ambulance equipment. Methods This cross-sectional analytical study was conducted on 84 EMS personnel who were selected from 17 medical centers in Rasht, Iran using a convenience sampling method. The data collection tool was a two-part questionnaire. The first part surveys demographic characteristics (age, gender, work experience, type of employment, education, field of study, history of retraining courses) and the second part assesses the knowledge of ambulance equipment according to the Pre-hospital Emergency Medicine/Equipment User Manual of Iranian Ministry of Health and Medical Education (fourth edition). The data were analyzed in SPSS v. 22 software and the significance level was set at 0.05. Results Most of participants had a bachelor's degree, were under permanent employment, and had a degree in nursing and emergency medicine. Their mean work experience was 9.84±6.41 years, and most of them had a history of participating in retraining courses. Their knowledge of ambulance equipment was at a good level. Kruskal-Wallis test showed that their knowledge level had a significant relationship with their type of employment (P<0.001). Conclusion It is necessary to increase the knowledge level of pre-hospital EMS personnel about ambulance equipment by holding short-term training courses and using simulation methods. [ABSTRACT FROM AUTHOR]

Background: Emergency medical services are vital in timely treating victims and reducing injury and mortality rates. Ambulance response time is an essential variable in evaluating the quality of these services. This study aims to determine the ambulance response time and compare it to some background variables. Materials and Methods: This descriptive study was conducted on ambulance emergency missions in Tabriz Emergency Medical Center, Tabriz, Iran. The data file related to the eligible missions in the server of the center was read and listened and ambulance response time and background variables were extracted and analyzed using descriptive statistics. Results: The Mean±SD ambulance response time was 11.58±5.69 min, which was long. The results showed a statistically significant relationship between ambulance response time and technical readiness, traffic conditions, accident time, and the educational level of ambulance personnel. Conclusion: Compared to the standard value, the average ambulance response time in Tabriz Emergency Medical Center was longer. By recognizing the influential variables and taking the required actions, one can improve the ambulance response time and facilitate medical services in emergency conditions. [ABSTRACT FROM AUTHOR]

Background: Less than 50% of stroke patients in Norway reach hospital within 4 h of symptom onset. Early prehospital identification of stroke and triage to the right level of care may result in more patients receiving acute treatment. Quality of communication between paramedics and the stroke centre directly affects prehospital on-scene time, emphasising this as a key factor to reduce prehospital delay. Prehospital stroke scales are developed for quick and easy identification of stroke, but have poor sensitivity and specificity compared to an in-hospital assessment with the National Institutes of Health Stroke Scale (NIHSS). The aim of the Paramedic Norwegian Acute Stroke Prehospital Project (ParaNASPP) is to assess whether a structured learning program, prehospital NIHSS and a mobile application facilitating communication with the stroke physician may improve triage of acute stroke patients.Methods: A stepped wedge cluster randomised controlled intervention design will be used in this trial in Oslo, Norway. Paramedics at five ambulance stations will enrol adult patients with suspected stroke within 24 h of symptom onset. All paramedics will begin in a control phase with standard procedures. Through an e-learning program and practical training, a random and sequential switch to the intervention phase takes place. A mobile application for NIHSS scoring, including vital patient information for treatment decisions, transferring data from paramedics to the on-call stroke physician at the Stroke Unit at Oslo University Hospital, will be provided for the intervention. The primary outcome measure is positive predictive value (PPV) for prehospital identification of patients with acute stroke defined as the proportion of patients accepted for stroke evaluation and discharged with a final stroke diagnosis. One thousand three hundred patients provide a 50% surplus to the 808 patients needed for 80% power to detect a 10% increase in PPV.Discussion: Structured and digital communication using a common scale like NIHSS may result in increased probability for better identification of stroke patients and less stroke mimics delivered to a stroke team for acute diagnostics and treatment in our population.Trial Registration: ClinicalTrials.gov NCT04137874 . Registered on October 24, 2019. [ABSTRACT FROM AUTHOR]

Abstract: Two types of dampers were developed: 2DOF (degree of freedom )-type and Rotary-type, to protect the patient lying on the bed in ambulance from shock due to sudden break. Both consists of a number of plates with slits and Magnetic Rheological Fluid (MRF) filled in the damper, so that magnetic field generated by permanent magnets and controllable electric field will freeze MRF and shear force can be gained. The damping mechanism is based on the fail-safe characteristic of the MRF damper that in zero-field (current off-state), the damper will be in passive mode operation and similar to the passive shock absorber. This paper presents a preliminary work of development of semi-active damper and investigation on the efficiency of using MRF as damper material in both types. Experimental tests were carried out and it is shown that both dampers suppressed the shock significantly while Rotary-type has a better performance than 2DOF-type. [Copyright &y& Elsevier]

For ambulance patients who were transported to hospital, ED presentations were linked to ambulance records where the VEMD arrival time was within two hours of the ambulance ED arrival time. However, routine linkage of this data with emergency department (ED) presentation and hospital admission datasets is rare and has historically been performed on a project-by-project basis.2-7 Consequently, the influence of prehospital triage and care on patient outcomes is not systematically evaluated by ambulance services internationally. Data Sources Ambulance Data Sources Operational (eg Computer Aided Dispatch), electronic patient care record and secondary triage data relating to consecutive emergency ambulance calls between 1 January 2015 and 30 June 2019 were extracted from the Ambulance Victoria data warehouse. [Extracted from the article]

Background: Clinically meaningful pain reduction with respect to severity and the adverse events of drugs used in prehospital pain management for children are areas that have not received sufficient attention. The present systematic review therefore aims to perform a comprehensive search of databases to examine the preferable drugs for prehospital pain relief in paediatric patients with acute pain, irrespective of aetiology. Methods: The systematic review includes studies from 2000 and up to 2020 that focus on children's prehospital pain management. The study protocol is registered in PROSPERO with registration no. CRD42019126699. Pharmacological pain management using any type of analgesic drug and in all routes of administration was included. The main outcomes were (1) measurable pain reduction (effectiveness) and (2) no occurrence of any serious adverse events. Searches were conducted in PubMed, Medline, Embase, CINAHL, Epistemonikos and Cochrane library. Finally, the risk of bias was assessed using the Joanna Briggs Institute (JBI) checklist and a textual narrative analysis was performed due to the heterogeneity of the results. Results: The present systematic review on the effectiveness and safety of analgesic drugs in prehospital pain relief in children identified a total of eight articles. Most of the articles reviewed identified analgesic drugs such as fentanyl (intranasal/IV), morphine (IV), methoxyflurane (inhalational) and ketamine (IV/IM). The effects of fentanyl, morphine and methoxyflurane were examined and all of the included analgesic drugs were evaluated as effective. Adverse events of fentanyl, methoxyflurane and ketamine were also reported, although none of these were considered serious. Conclusion: The systematic review revealed that fentanyl, morphine, methoxyflurane and combination drugs are effective analgesic drugs for children in prehospital settings. No serious adverse events were reported following the administration of fentanyl, methoxyflurane and ketamine. Intranasal fentanyl and inhalational methoxyflurane seem to be the preferred drugs for children in pre-hospital settings due to their ease of administration, similar effect and safety profile when compared to other analgesic drugs. However, the level of evidence (LOE) in the included studies was only three or four, and further studies are therefore necessary. [ABSTRACT FROM AUTHOR]

Background: The coronavirus disease 2019 (COVID-19) pandemic has significantly influenced epidemiology, yet its impact on out-of-hospital cardiac arrest (OHCA) remains unclear. We aimed to evaluate the impact of the pandemic on the incidence and case fatality rate (CFR) of OHCA. We also evaluated the impact on intermediate outcomes and clinical characteristics. Methods: PubMed, EMBASE, Web of Science, Scopus, and Cochrane Library databases were searched from inception to May 3, 2021. Studies were included if they compared OHCA processes and outcomes between the pandemic and historical control time periods. Meta-analyses were performed for primary outcomes [annual incidence, mortality, and case fatality rate (CFR)], secondary outcomes [field termination of resuscitation (TOR), return of spontaneous circulation (ROSC), survival to hospital admission, and survival to hospital discharge], and clinical characteristics (shockable rhythm and etiologies). This study was registered in the International Prospective Register of Systematic Reviews (PROSPERO) (CRD42021253879). Results: The COVID-19 pandemic was associated with a 39.5% increase in pooled annual OHCA incidence (p < 0.001). Pooled CFR was increased by 2.65% (p < 0.001), with a pooled odds ratio (OR) of 1.95 for mortality [95% confidence interval (95%CI) 1.51–2.51]. There was increased field TOR (OR = 2.46, 95%CI 1.62–3.74). There were decreased ROSC (OR = 0.65, 95%CI 0.55–0.77), survival to hospital admission (OR = 0.65, 95%CI 0.48–0.89), and survival to discharge (OR = 0.52, 95%CI 0.40–0.69). There was decreased shockable rhythm (OR = 0.73, 95%CI 0.60–0.88) and increased asphyxial etiology of OHCA (OR = 1.17, 95%CI 1.02–1.33). Conclusion: Compared to the pre-pandemic period, the COVID-19 pandemic period was significantly associated with increased OHCA incidence and worse outcomes. [ABSTRACT FROM AUTHOR]

Background: In 2015, a national research agenda was established for Dutch prehospital EMS to underpin the evidence base of care delivery and inform policymakers and funders. The continuously increasing demand for ambulance care and the reorientation towards the role of EMS in recent years may have changed research priorities. Therefore, this study aimed to update the Dutch national EMS research agenda. Methods: A three-round online Delphi survey was used to explore and discuss different viewpoints and to reach consensus on research priorities (i.e., themes and special interest groups, e.g. patient types who require specific research attention). A multidisciplinary expert panel (n = 62) was recruited in the field of prehospital EMS and delegates of relevant professional organizations and stakeholders participated. In round one, fifty-nine research themes and six special interest groups (derived from several resources) were rated on importance on a 5-point scale by the panel members. In round two, the panel selected their priority themes and special interest groups (yes/no), and those with a positive difference score were further assessed in round three. In this final round, appropriateness of the remaining themes and agreement within the panel was taken into account, following the RAND/UCLA appropriateness method, which resulted in the final list of research priorities. Results: The survey response per round varied between 94 and 100 percent. In round one, a reduction from 59 to 25 themes and the selection of three special interest groups was realized. Round two resulted in the prioritization of six themes and one special interest group ('Vulnerable elderly'). Round three showed an adequate level of agreement regarding all six themes: 'Registration and (digital) exchange of patient data in the chain of emergency care'; 'Mobile care consultation/Non conveyance'; 'Care coordination'; 'Cooperation with professional partners within the care domain'; 'Care differentiation' and 'Triage and urgency classification'. Conclusions: The updated Dutch national EMS research agenda builds further on the previous version and introduces new EMS research priorities that correspond with the future challenges prehospital EMS care is faced with. This agenda will guide researchers, policymakers and funding bodies in prioritizing future research projects. [ABSTRACT FROM AUTHOR]

Abstract Background Situation awareness and decision making, listed in non-technical skills taxonomies, are critical for effective and safe performance in high-risk professions. These cognitive skills and their behavioral markers have been studied less in emergency medical services (EMS) crew members. This paper aims to review the existing literature and identify important aspects and behavioral markers of situation awareness and decision making in EMS crew members – those who work in the role of prehospital emergency care providers – and to synthesize findings as a basis for developing a rating and training tool. Method The search for relevant articles was conducted using electronic databases, reference lists of relevant reviews and included articles and personal collection of articles. The selection process based on the PRISMA statement yielded a total of 30 articles that met the eligibility criteria. Their findings were qualitatively synthesized using the structured approach, informed by the already known structure: situation awareness and its elements (gathering information, interpreting information, anticipating future states), decision making and its elements (generating and considering options, selecting and implementing an option, reviewing outcome/decision). Moreover, the element of maintaining standards also emerged as highly relevant for cognitive skills. Results This review found an increased research interest in the non-technical cognitive skills of EMS crew members. The majority of included articles’ research designs were qualitative, then mixed, Delphi, and quantitative. It revealed several specifics of cognitive skills, such as EMS crew members need to holistically assess a wide range of cues and information, to make various health- and safety-related decisions and take EMS standards into account. However, there was only a limited number of observable markers of cognitive skills, such as acts and verbalizations, that could be considered as examples of good behavior. In addition, findings indicate a lack of articles focused on mass-casualty incidents and the interconnection of cognitive skills with other non-technical and medical skills. Conclusion Further research is needed to get a more comprehensive view of behavioral markers of cognitive skills and to develop a rating and training tool to improve EMS crew members’ cognitive performance.

Abstract Background A major review of Victoria’s ambulance services identified the need to improve public awareness of the role of ambulances as an emergency service. A communications campaign was developed to address this challenge. This research paper expands on an initial evaluation of the campaign by focusing on the long-term behavioural outcomes. Methods The behavioural evaluation involved two types of data collection – administrative data (routine collection from various health services) and survey data (cross-sectional community-wide surveys to measure behavioural intentions). Results Behavioural intentions for accessing two of the targeted non-emergency services increased after the second phase of the campaign commenced. There was also a significant change in the slope of call trends for emergency ambulances. This decrease is also likely attributed to the second phase of the campaign as significant level effects were identified 3 and 9 months after it commenced. Conclusions A long-term campaign developed through evidence review, stakeholder consultation and behavioural theory was successful in reducing the number of daily calls requesting an emergency ambulance in Victoria and in increasing intentions to use alternative services. This research highlights the importance of collaborative intervention design along with the importance of implementing a robust monitoring and evaluation framework.

Background: Little is known about vital signs during the very first minutes after an accident. This study aimed to describe the vital signs of motorcycle riders shortly after racetrack crashes and examine the clinical value of these data for the prehospital clinical assessments. Methods: A retrospective observational cohort based on data from medical records on 104 motorcycle accidents at a racetrack in Sweden, covering the season of 2019 (May 01 until September 17), was conducted. Both race and practice runs were included. In addition, data from the Swedish Trauma Registry were used for patients referred to the hospital. Kruskal-Wallis test and linear regression were calculated in addition to descriptive statistics. Results: In all, 30 riders (29%) were considered injured. Sixteen riders (15%) were referred to the hospital, and of these, five patients (5% of all riders) had suffered serious injuries. Aside from a decreased level of consciousness, no single vital sign or kinematic component observed within the early minutes after a crash was a strong clinical indicator of the occurrence of injuries. However, weak links were found between highsider or collision crashes and the occurrence of injuries. Conclusion: Except for a decreased level of consciousness, this study indicates that the clinical value of early measured vital signs might be limited for the pre-hospital clinical assessment in the motorsport environment. Also, an adjustment of general trauma triage protocols might be considered for settings such as racetracks. Using the context with medical professionals at the victim's side within a few minutes after an accident, that is common in motorsport, offers unique possibilities to increase our understanding of clinical signs and trauma in the early state after an accident. [ABSTRACT FROM AUTHOR]

Objective: To test the impact of placing a wellness team (nurse and social worker) in senior housing on ambulance transfers and visits to emergency departments over 18 months. Data sources/study setting: Intervention sites included seven Boston‐area buildings, with five buildings at comparable settings acting as controls. Data derive from building‐level ambulance data from emergency responders; building‐level Medicare claims data on emergency department utilization; and individual‐level baseline assessment data from participants in the intervention (n = 353) and control (n = 208) sites. Study design: We used a pre/postdifference in difference quasi‐experimental design applying several analytic methods. The preintervention period was January 2016‐March 2017, while the intervention period was July 2017‐December 2018. Data collection/extraction methods: Emergency responders provided aggregate transfer data on a daily basis for intervention and control buildings; the Quality Improvement Organization provided quarterly aggregate data on emergency department visit rates; and assessment data came from a modified Vitalize 360 assessment and coaching tool. Principal findings: The study found an 18.2% statistically significant decline in ambulance transfers in intervention buildings, with greater declines in buildings that had fewer services available at baseline, compared to other intervention sites. Analysis of Medicare claims data, adjusted for the proportion of residents over 75 per building, found fewer visits to emergency departments in intervention buildings. Conclusions: Health‐related supports in senior housing sites can be effective in reducing emergency transfers and visits to emergency departments. [ABSTRACT FROM AUTHOR]

The purpose of this paper is to forecast vehicle accelerations by using a Long Short Term Memory (LSTM) approach. Such a predictive capability can be particularly helpful in the case of medical emergency vehicles. During emergency transport, a patient is likely to experience vehicle accelerations in both longitudinal and lateral directions. Although the effect of these accelerations acting on a patient can be reduced by actively controlling the attitude of the ambulance bed, there is inevitably a delay from the time the acceleration is measured until the attitude of the bed reaches its target state. In our approach, we forecast future accelerations from past time series data by using LSTM, a recurrent neural network architecture utilized in deep learning, to predict future accelerations at each time step. Using various driving scenarios, the LSTM is trained with different training data and different numbers of hidden layers, units, and epochs. To evaluate the performance and usefulness of the approach, real-time simulations are conducted using measured longitudinal and lateral vehicle acceleration data. Forecast accuracy is assessed for the trained LSTM with different parameters, and the results show the capability of producing accurate real-time forecasts for certain parameter settings. Comparisons of the LSTM’s forecast results with the results of an autoregressive integrated moving average model shows the advantages of the LSTM approach especially for unsteady time series data that includes such elements as sudden or large acceleration changes.

Background: Ambulance drivers in the Netherlands are trained to drive as fluent as possible when transporting a head injured patient to the hospital. Acceleration and deceleration have the potential to create pressure changes in the head that may worsen outcome. Although the idea of fluid shift during braking causing intra cranial pressure (ICP) to rise is widely accepted, it lacks any scientific evidence. In this study we evaluated the effects of driving and deceleration during ambulance transportation on the intra cranial pressure in supine position and 30° upright position. Methods: Participants were placed on the ambulance gurney in supine position. During driving and braking the optical nerve sheath diameter (ONSD) was measured with ultrasound. Because cerebro spinal fluid percolates in the optical nerve sheath when ICP rises, the diameter of this sheath will distend if ICP rises during braking of the ambulance. The same measurements were taken with the headrest in 30° upright position. Results: Mean ONSD in 20 subjects in supine position increased from 4.80 (IQR 4.80–5.00) mm during normal transportation to 6.00 (IQR 5.75–6.40) mm (p < 0.001) during braking. ONSD's increased in all subjects in supine position. After raising the headrest of the gurney 30° mean ONSD increased from 4.80 (IQR 4.67–5.02) mm during normal transportation to 4.90 (IQR 4.80–5.02) mm (p = 0.022) during braking. In 15 subjects (75%) there was no change in ONSD at all. Conclusions: ONSD and thereby ICP increases during deceleration of a transporting vehicle in participants in supine position. Raising the headrest of the gurney to 30 degrees reduces the effect of breaking on ICP. [ABSTRACT FROM AUTHOR]

Background: An estimated nine out of ten persons in sub-Saharan Africa (SSA) are unable to access timely, safe and affordable surgery. District hospitals (DHs) which are strategically located to provide basic (non-specialist) surgical care for rural populations have in many instances been compromised by resource inadequacies, resulting in unduly frequent patient referrals to specialist hospitals. This study aimed to quantify the financial burdens of surgical ambulance referrals on DHs and explore the coping strategies employed by these facilities in navigating the challenges.Methods: We employed a multi-methods descriptive case study approach, across a total of 14 purposively selected DHs; seven, three, and four in Tanzania, Malawi and Zambia, respectively. Three recurrent cost elements were identified: fuel, ambulance maintenance and staff allowances. Qualitative data related to coping mechanisms were obtained through in-depth interviews of hospital managers while quantitative data related to costs of surgical referrals were obtained from existing records (such as referral registers, ward registers, annual financial reports, and other administrative records) and expert estimates. Interview notes were analysed by manual thematic coding while referral statistics and finance data were processed and analysed using Microsoft Office Excel 2016.Results: At all but one of the hospitals, respondents reported inadequacies in numbers and functional states of the ambulances: four centres indicated employing non-ambulance vehicles to convey patients occassionally. No statistically significant correlation was found between referral trip distances and total annual numbers of referral trips, but hospital managers reported considering costs in referral practices. For instance, ten of the study hospitals reported combining patients to minimize trip frequencies. The total cost of ambulance use for patient transportation ranged from I$2 k to I$58 k per year. Between 34% and 79% of all patient referrals were surgical, with total costs ranging from I$1 k to I$32 k per year.Conclusion: Cost considerations strongly influence referral decisions and practices, indicating a need for increases in budgetary allocations for referral services. High volumes of potentially avoidable surgical referrals provide an economic case - besides equitable access to healthcare - for scaling up surgery capacity at the district level as savings from decreased referrals could be reinvested in referral systems strengthening. [ABSTRACT FROM AUTHOR]

Background: Exceptional demands have been placed on paramedics and other healthcare workers (HCWs) during the COVID-19 pandemic. An overwhelming outpouring of public support has unfolded, bringing into focus the relationship between paramedics, other HCWs and society, where they are portrayed as heroes. Scholars have studied the notion of heroism to society, and characteristics of such heroic status include: the voluntary nature of a heroic act, risk of physical or social harm, willingness to accept the consequences of action, acting for the benefit of others and without the expectation of gain. While some HCWs and paramedics may reflect these characteristics, many may not. Such heroic narratives can be damaging, stifling meaningful discussion around limits to duties, failing to acknowledge the importance of reciprocity and potentially imposing demands on paramedics and HCWs to be heroic. Aim: This article prospectively presents the protocol for a metasynthesis which aims to identify, appraise and synthesise the qualitative literature in order to develop theory on heroism and paramedic practice. Methods: Evolved grounded theory methodology is followed along with the procedural guidelines of Noblit and Hare (1988) to guide the analysis. The Preferred Reporting Items for Systematic Reviews and Meta-analysis Protocols (PRISMA-P) have also been adopted when preparing this protocol and will be followed in the study proper. The protocol has been registered with the International Prospective Register of Systematic Reviews PROSPERO 2021, registration number CRD42021234851. Results: We do not currently have results, but PRISMA guidelines will be followed when reporting our findings. Conclusion: Current narratives on heroism and paramedic practice are important in terms of the relationship between paramedics and society. The metasynthesis prospectively reported in this article serves as the first point in our journey of making sense of and developing theory on heroism and paramedic practice. [ABSTRACT FROM AUTHOR]

Background: Prehospital emergency department provides land, air, boat, and rail ambulance care. This study aimed to compare the situation of air and ground emergency casualties in road traffic accidents transferred to Shahid Beheshti Medical Center in Qom City, Iran, 2015-2018. Materials and Methods: The present study is a retrospective descriptive-analytical study. All road traffic accident victims transferred to Shahid Beheshti Medical Center in Qom by prehospital emergency land or air staff from 2015 to 2018 at 6 to 20 o'clock were included in this study (census method). The exclusion criteria included burns, death, transmission during cardiopulmonary resuscitation or by urban ambulances, and information deficiencies. We used a researcher-made checklist to examine victims' age, sex, type of transmission, type of accident, type of trauma, distance, initial vital signs, time intervals, and day of the accident. SPSS software version 16 was used to analyze the data. Data were compared in two groups with the t test and the Chi-square test. Results: A total of 2057 casualties were included in the study: 566 casualties were transferred by air emergency and 1491 by ground emergency. The mean age of air emergency casualties was significantly lower than the ground emergency (P=0.008). Trauma to the neck, chest, abdomen and lower back was significantly higher in air emergency casualties, but hand and foot trauma were more common in ground emergency casualties. Most air missions took place on holidays or weekends, while most ground missions were done during weekdays (P<0.001). The mean distance of the air emergency missions was more than Beheshti Medical Center (P<0.001). Compared with ground emergency casualties, air emergency casualties had average systolic blood pressure, lower level of consciousness, and higher heart rate and respiration (P<0.001). The mean duration of transfer from the accident scene to the medical center in the air emergency was significantly shorter (P<0.001). Conclusion: Air emergency casualties were usually accompanied by more critical vital signs and severe injuries to the neck, chest, abdomen, and back. This study can provide clinical triage criteria that focus on key environmental factors and reduced transport time. Further studies are needed to investigate the consequences of traffic accident casualties at the medical center to determine which subgroups will benefit most from using air emergency. [ABSTRACT FROM AUTHOR]

Background/aim: Analysis of interventions for special patient groups is important for the planning of health services, especially emergency medical services. In this study, we aimed to evaluate emergency medical service (EMS) interventions for the elderly and determine the decisive factors affecting transfer to the hospital of EMS team over 2 years (2017 and 2018) in İzmir. Materials and methods: Records of 112 emergency calls that were made between 2017 and 2018 followed up with interventions for patients aged 65 years and older were obtained from the 112 system. The reasons for the calls, outcomes, possible diagnoses of the patients, differences in time intervals and seasons, characteristics of the patients transferred to the hospital, and factors affecting the need for transfer to the hospital were investigated. Results: A total of 176,104 elderly patients with a mean age of 78.02 ± 8.0 years required ambulance services, and out of them, 66% were transferred to the hospital. Transfer to the hospital was significantly associated with the event location, sex, time interval, international classification of diseases (ICD) codes, and physical examination findings. Conclusion: Ambulance interventions are more frequently required in urban areas than in the countryside, and calls are mostly made during daytime hours and during winter months. The decision to transfer a patient to the hospital is based on the patient's respiratory status, skin examination, state of consciousness, pulse, systolic blood pressure, call time, and the preliminary diagnosis of the crew. [ABSTRACT FROM AUTHOR]

Background: Globally, terrorist attacks have major impact because of high rates of mortality and severe injury. Compression with direct pressure may be time-consuming in limb exsanguination and accelerate onset of haemorrhagic shock. Tourniquet applications have undergone scrutiny over a long period, but recently tourniquets have been developed and modified for effective and efficient use in prehospital settings to mitigate adverse effects. Objectives: This systematic review aimed at examining commercial tourniquets that demonstrated efficacy for use in prehospital services. Methods: Six search engines (ScienceDirect, Ovid, PubMed, SAGE, SpringerLink, Taylor & Francis) were used and articles of which 14 were selected for data analysis. Results: The findings were not sufficiently conclusive to pinpoint whether one tourniquet application was superior overall; however, Combat Application Tourniquet appeared to be better than other commercial tourniquets in terms of occlusion of distal blood flow, easy and quick self-application and fewer complications. Conclusion: In prehospital settings, ambulance personnel should not hesitate to apply tourniquets when encountering critical circumstances in which they must choose between saving life and potential complications. [ABSTRACT FROM AUTHOR]

Abstract Background In Victoria, Australia, emergency calls requesting an ambulance have been increasing at a rate higher than population growth. While most of these calls are for genuine emergencies, many do not require an immediate ambulance response. A collaborative research approach was undertaken to address this issue. The aim of this paper was to evaluate the effectiveness of applying a behaviour change approach to this challenge by first addressing antecedents of behaviour (attitudes, awareness and knowledge). Methods The project included a formative research phase to inform the design of a mass media campaign and subsequent evaluation of the campaign. Results Results indicated that the campaign was successful in increasing community attitudes towards ambulances as being for emergencies only, particularly among those familiar with the campaign material and with other health service options (such as telephone advice lines). Conclusions These findings provide support for adopting the Forum approach to increase the chances that a mass media campaign will achieve its stated objectives. Recommendations for future campaign activities are discussed.

Acute Coronary Syndrome (ACS) and other heart emergency events require immediate chest pain identification in the ambulance. Specifically, early identification and triage is required so that patients with chest pain can be quickly sent to a hospital with appropriate care facilities for treatment. In the traditional approach, ambulance personnel often use symptom checklists to examine the patient and make a quick decision for the target hospital. However, not every hospital has specialist facilities to handle such emergency cases. If the result of the subsequent cardiac enzyme test performed at the target hospital strongly suggests the occurrence of myocardial infarction, the patient may need to be sent to another hospital with specialist facilities, such as Percutaneous Coronary Intervention. The standard procedure is time consuming, which may result in delayed treatment and reduce patent survival rate. To resolve this issue, we propose AMBtalk (Ambulance Talk) for accurate, early ACS identification in an ambulance. AMBtalk provides real-time connection to hospital resources, which reduces the elapsed time for treatment, and therefore, improves the patient survival rate. The key to success for AMBtalk is the development of the AllCheck® Internet of Things (IoT) device, which can accurately and quickly provide cardiovascular parameter values for early ACS identification. The interactions between the AllCheck® IoT device, the emergency medical service center, the ambulance personnel and the hospital are achieved through the AMBtalk IoT server in the cloud network. AllCheck® outperforms the existing cardiovascular IoT device solutions for ambulance applications. The testing results of the AllCheck® device show 99% correlation with the results of the hospital reports. Due to its excellent performance in quick ACS identification, the AllCheck® device was awarded the 17th Taiwan Innovators Award in 2020. [ABSTRACT FROM AUTHOR]

In this paper, an analytic review of the recent methodologies tackling the problem of dynamic allocation of ambulances was carried out. Considering that state-of-the-art is moving to deal with more extensive and dynamic problems to address in a better way real-life instances, this research looks to identify the evolution and recent applications of this kind of problem once the basic models are explored. This extensive review allowed us to identify the most recent developments in this problem and the most critical gaps to be addressed. In this sense, it is essential to point out that the dynamic location of emergency medical services (EMS) is nowadays a relevant topic considering its impact on the healthcare system outcomes. Issues related to forecasting, simulation, heterogeneous fleets, robustness, and solution speed for real-life problems, stand out in the identified gaps. Applications of machine learning the deployment challenges during epidemic outbreaks such as SARS and COVID-19 were also explored. At the same time, a proposed notation tries to tackle the fact that the word problem in this kind of work refers to a model on many occasions. The proposed notation eases the comparison between the different model proposals found in the literature.

Background: Emergency pediatric care curriculum (EPCC) was developed to address the need for pediatric rapid assessment and resuscitation skills among out-of-hospital emergency providers in Armenia. This study was designed to evaluate the effectiveness of EPCC in increasing physicians' knowledge when instruction transitioned to local instructors. We hypothesize that (1) EPCC will have a positive impact on post-test knowledge, (2) this effect will be maintained when local trainers teach the course, and (3) curriculum will satisfy participants. Methods: This is a quasi-experimental, pre-test/post-test study over a 4-year period from October 2014‑November 2017. Train-the-trainer model was used. Primary outcomes are immediate knowledge acquisition each year and comparison of knowledge acquisition between two cohorts based on North American vs local instructors. Descriptive statistics was used to summarize results. Pre-post change and differences across years were analyzed using repeated measures mixed models. Results: Test scores improved from pretest mean of 51% (95% CI 49.6 to 53.0%) to post-test mean of 78% (95% CI 77.0 to 79.6%, p < 0.001). Average increase from pre- to post-test each year was 27% (95% CI 25.3 to 28.7%). Improvement was sustained when local instructors taught the course (p = 0.74). There was no difference in improvement when experience in critical care, EMS, and other specialties were compared (p = 0.23). Participants reported satisfaction and wanted the course repeated. In 2017, EPCC was integrated within the Emergency Medicine residency program in Armenia. Discussion: This program was effective at impacting immediate knowledge as well as participant satisfaction and intentions to change practice. This knowledge acquisition and reported satisfaction remained constant even when the instruction was transitioned to the local instructors after 2 years. Through a partnership between the USA and Armenia, we provided OH-EPs in Armenia with an intensive educational experience to attain knowledge and skills necessary to manage acutely ill or injured children in the out-of-hospital setting. Conclusions: EPCC resulted in significant improvement in knowledge and was well received by participants. This is a viable and sustainable model to train providers who have otherwise not had formal education in this field. [ABSTRACT FROM AUTHOR]