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Background/purpose: This study addresses the delicate balance between healthcare personnel burnout and medical accessibility in the context of endovascular thrombectomy (EVT) services in urban areas. We aimed to determine the minimum number of hospitals providing EVT on rotation each day without compromising patient access. Methods: Employing an optimization model, we developed shift schedules based on patient coverage rates and volumes during the pre-pandemic (2016–2018) and pandemic (2019–2021) periods. Starting with a minimum of two hospitals on duty per day, we gradually increased to a maximum of eight. Patient coverage rates, defined as the proportion of patients meeting bypass criteria and transported to rotating hospitals capable of EVT, were the primary outcomes. Sensitivity analyses explored the impact of varying patient transport intervals and accumulating patients over multiple years. Results: Results from 7024 patient records revealed patient coverage rates of 92.5% (standard deviation [SD] 2.8%) during the pre-pandemic and 91.4% (SD 2.8%) during the pandemic, with at least two rotating hospitals daily. No significant differences were observed between schedules based on the highest patient volume and coverage rate months. A patient coverage rate of 98.99% was achieved with four rotating hospitals per day during the pre-pandemic period, with limited improvement beyond this threshold. Changing patient transport intervals and accumulating patients over six years (p = 0.83) had no significant impact on coverage rates. Conclusion: Our optimization model supports reducing the number of daily rotating hospitals by half while preserving a balance between patient accessibility and alleviating strain on medical teams.

Aims: The PIVOT trial evaluates the clinical outcomes and ventilatory quality of an automatic pneumatic ventilation method compared to a bag-valve-mask ventilation method in patients who have experienced out-of-hospital cardiac arrest and have had an advanced airway placed. Methods: The PIVOT trial is a pragmatic, open-label, multicenter randomized controlled trial. It aims to recruit 514 patients in Hsinchu County, Taiwan. Adult, non-trauma patients who experience out-of-hospital cardiac arrest, are treated by emergency medical services, and have an advanced airway in place will be randomized. Biweekly cluster randomization will assign EMS teams to either the automatic pneumatic ventilation group or the bag-valve-mask group. Informed consent is waived. The primary outcome is the return of spontaneous circulation, either prehospital or in-hospital. Secondary outcomes include survival to discharge, neurological outcomes, prehospital ventilatory quality, and the content of prehospital resuscitation. Participants will be followed until they pass away or are discharged from the hospital. Conclusion: The PIVOT trial will provide new insight on the clinical effectiveness of automatic pneumatic ventilation in patients experienced out-of-hospital cardiac arrest.Trial number: NCT06067204 in clinicaltrial.gov

Background/purpose: This review aimed to investigate the effect of crew ratios of on-scene advanced life support (ALS)-trained personnel on patients with out-of-hospital cardiac arrest (OHCA). Methods: We systematically searched PubMed, Ovid EMBASE, and the Cochrane Central Register of Controlled Trials databases from the inception date until September 30, 2022, for eligible studies. Two reviewers independently screened the studies for relevance, extracted data, and quality. We compared the effect of the ratio of on-scene ALS-trained personnel >50 % to those with a ratio ≤50 % among prehospital personnel on the clinical outcomes of OHCA patients. The primary outcome was survival-to-discharge and secondary outcomes were any return of spontaneous circulation (ROSC), sustained ROSC (≥2 h), and favourable neurological outcome at discharge (cerebral performance category scores: 1 or 2). Pooled odds ratios (ORs) were calculated, and the certainty of evidence was assessed. Results: From 10,864 references, we identified four non-randomised studies, including 16,475 patients. Two studies were performed in Japan and two in Taiwan. There were significant differences in survival-to-discharge (OR: 1.24, 95 % confidence interval [CI]: 1.07–1.44, I2: 7 %), any ROSC (OR:1.22, 95 % CI: 1.04–1.43, I2: 74 %) and sustained ROSC (OR: 1.39, 95 % CI: 1.16–1.65, I2: 40 %), but insignificant differences in favourable neurological outcome at discharge. The overall certainty of evidence was rated as very low for all outcomes. Conclusion: Prehospital ALS care with a ratio of on-scene ALS-trained personnel >50 % could improve OHCA patient outcomes than crew ratios ≤50 %. Further studies are required to reach a robust conclusion.

Objective: Traumatic brain injury (TBI) is among the leading causes of death and disability globally. Identifying and assessing the risk of in-hospital mortality in traumatic brain injury patients at an early stage is challenging. This study aimed to develop a model for predicting in-hospital mortality in TBI patients using prehospital data from China. Methods: We retrospectively included traumatic brain injury patients who sustained injuries due to external forces and were treated by pre-hospital emergency medical services (EMS) at a tertiary hospital. Data from the pre-hospital emergency database were analyzed, including demographics, trauma mechanisms, comorbidities, vital signs, clinical symptoms, and trauma scores. Eligible patients were randomly divided into a training set (241 cases) and a validation set (104 cases) at a 7:3 ratio. Least absolute shrinkage and selection operator (LASSO) and multivariate logistic regression were employed to identify independent risk factors. Analyzed the discrimination, calibration, and net benefit of the nomogram across both groups. Results: 17.40 % (42/241) of TBI patients died in the hospital in the training set, while 18.30 % (19/104) in the validation set. After analysis, chest trauma (odds ratio [OR] = 4.556, 95 % confidence interval [CI] = 1.861–11.152, P = 0.001), vomiting (OR = 2.944, 95%CI = 1.194–7.258, P = 0.019), systolic blood pressure (OR = 0.939, 95%CI = 0.913–0.966, P

Background/Purpose: To develop a prediction model for emergency medical technicians (EMTs) to identify trauma patients at high risk of deterioration to emergency medical service (EMS)-witnessed traumatic cardiac arrest (TCA) on the scene or en route. Methods: We developed a prediction model using the classical cross-validation method from the Pan-Asia Trauma Outcomes Study (PATOS) database from 1 January 2015 to 31 December 2020. Eligible patients aged ≥18 years were transported to the hospital by the EMS. The primary outcome (EMS-witnessed TCA) was defined based on changes in vital signs measured on the scene or en route. We included variables that were immediately measurable as potential predictors when EMTs arrived. An integer point value system was built using multivariable logistic regression. The area under the receiver operating characteristic (AUROC) curve and Hosmer-Lemeshow (HL) test were used to examine discrimination and calibration in the derivation and validation cohorts. Results: In total, 74,844 patients were eligible for database review. The model comprised five prehospital predictors: age 20/minute, pulse oximetry

Background: The burden of emergency medical conditions is borne mostly by poorer nations, with a 6 % increase in deaths of adults and children due to emergency conditions between 1990 and 2015. Emergency medical service is crucial to improve outcomes of those injuries and other time-sensitive illnesses. However, access to emergency medical services in Hawassa City is still limited and its’ utilization is influenced by different factors. Methods: A facility-based cross-sectional study was conducted among 422 randomly selected clients who visited the emergency service in public hospitals of Hawassa City. A structured interviewer-administered questionnaire adapted by reviewing previous literature was used. The collected data by using the Kobo toolbox was exported into a statical package for social science software for analysis. Descriptive statistics such as frequency, percentage, mean, and standard deviation were used. A binary logistic regression model at a 95 % confidence interval was used to declare an association between dependent and independent variables using the odds ratio. Results: All 422 participants completed the interview with a response rate of 100 %. The mean age of the study participants was 33.73 years with a 14.67 standard deviation. One quarter (24.9 % (95 % CI: 21.1–29.4)) of the study participants have utilized emergency medical services. Urban residence (AOR = 3.48, 95 % CI: 1.69–7.16), ever utilized ambulance service (AOR = 2.37, 95%CI: 1.21–4.67), having Red Cross Association ambulance number (AOR = 2.64, 95%CI: 1.20–5.83) and awareness on presence of free government ambulance (AOR = 3.74, 95%CI: 1.46–9.59) were the predictors of the outcome variable. Conclusion: utilization of emergency medical services in the study area was relatively low when compared with other studies. urban residence, ever utilization of ambulance service, awareness of the presence of free government ambulances, and having a Red Cross Association ambulance number were predictors of utilization of emergency medical service.

Background: Advanced Life Support (ALS) during cardiopulmonary resuscitation (CPR) for out-of-hospital cardiac arrest (OHCA) is frequently administered by two-member crews. However, ALS CPR is mostly designed for larger crews, and the feasibility and efficacy of implementing ALS guidelines for only two rescuers remain unclear. Objective: This scoping review aims to examine the existing evidence and identify knowledge gaps in the efficiency of pre-hospital ALS CPR performed by two-member teams. Design: A comprehensive search was undertaken across the following databases: PubMed, Web of Science, SCOPUS, Cochrane Library Trials, and ClinicalTrials.gov. The search covered publications in English or German from January 1, 2005, to November 30, 2023. The review included studies that focused on ALS CPR procedures carried out by two-member teams in adult patients in either simulated or clinical settings. Results: A total of 22 articles were included in the qualitative synthesis. Seven topics in two-person prehospital ALS/CPR delivery were identified: 1) effect of team configuration on clinical outcome and CPR quality, 2) early airway management and ventilation techniques, 3) mechanical chest compressions, 4) prefilled syringes, 5) additional equipment, 6) adaptation of recommended ALS/CPR protocols, and 7) human factors. Conclusion: There is a lack of comprehensive data regarding the adaptation of the recommended ALS algorithm in CPR for two-member crews. Although simulation studies indicate potential benefits arising from the employment of mechanical chest compression devices, prefilled syringes, and automation-assisted protocols, the current evidence is too limited to support specific modifications to existing guidelines.

Introduction: Emergency medical service (EMS) resources are limited and should be reserved for incidents of appropriate acuity. Over-triage in dispatching of EMS resources is a global problem. Analysing patients that are not transported to hospital is valuable in contributing to decision-making models/algorithms to better inform dispatching of resources. The aim is to determine variables associated with patients receiving an emergency response but result in non-conveyance to hospital. Methods: A retrospective cross-sectional study was performed on data for the period October 2018 to September 2019. EMS records were reviewed for instances where a patient received an emergency response but the patient was not transported to hospital. Data were subjected to univariate and multivariate regression analysis to determine variables predictive of non-transport to hospital. Results: A total of 245 954 responses were analysed, 240 730 (97.88 %) were patients that were transported to hospital and 5 224 (2.12 %) were not transported. Of all patients that received an emergency response, 203 450 (82.72 %) patients did not receive any medical interventions. Notable variables predictive of non-transport were green (OR 4.33 (95 % CI: 3.55–5.28; p

Aim: Post-resuscitation care is described as the fourth link in a chain of survival in resuscitation guidelines. However, data on prehospital post-resuscitation care is scarce. We aimed to examine the association among systolic blood pressure (SBP), peripheral oxygen saturation (SpO2) and end-tidal carbon dioxide (EtCO2) after prehospital stabilisation and outcome among patients resuscitated from out-of-hospital cardiac arrest (OHCA). Methods: In this retrospective study, we evaluated association of the last measured prehospital SBP, SpO2 and EtCO2 before patient handover with 30-day and one-year mortality in 2,611 patients receiving prehospital post-resuscitation care by helicopter emergency medical services in Finland. Statistical analyses were completed through locally estimated scatterplot smoothing (LOESS) and multivariable logistic regression. The regression analyses were adjusted by sex, age, initial rhythm, bystander CPR, and time interval from collapse to the return of spontaneous circulation (ROSC). Results: Mortality related to SBP and EtCO2 values were U-shaped and lowest at 135 mmHg and 4.7 kPa, respectively, whereas higher SpO2 shifted towards lower mortality. In adjusted analyses, increased 30-day mortality and one year mortality was observed in patients with SBP

Introduction: There is little research on the triage of patients who are not yet in cardiac arrest when the emergency call is initiated, but who deteriorate and suffer a cardiac arrest during the prehospital phase of care. The aim of this study was to investigate Emergency Operation Centre staff views on ways to improve the early identification of patients who are at imminent risk of cardiac arrest, and the barriers to achieving this. Methods: A qualitative interview and focus group study was conducted in two large Emergency Medical Services in England, United Kingdom. Twelve semi-structured interviews and one focus group were completed with Emergency Operations Centre staff. Data were analysed using reflexive thematic analysis. Results: Three main themes were identified: The dispatch protocol and call-taker audit; Identifying and responding to deteriorating patients; Education, knowledge and skills. Barriers to recognising patients at imminent risk of cardiac arrest include a restrictive dispatch protocol, limited opportunity to monitor a patient, compliance auditing and inadequate education. Clinician support is not always optimal, and a lack of patient outcome feedback restricts dispatcher learning and development. Suggested remedies include improvements in training and education (call-takers and the public), software, clinical support and patient outcome feedback. Conclusions: Emergency Operation Centre staff identified a multitude of ways to improve the identification of patients who are at imminent risk of out-of-hospital cardiac arrest during the Emergency Medical Service call. Suggested areas for improvement include education, triage software, clinical support redesign and patient outcome feedback.

Background and aims: This study developed a clinical support system based on federated learning to predict the need for a revised Korea Triage Acuity Scale (KTAS) to facilitate triage. Methods: This was a retrospective study that used data from 11,952,887 patients in the Korean National Emergency Department Information System (NEDIS) from 2016 to 2018 for model development. Separate cohorts were created based on the emergency medical center level in the NEDIS: regional emergency medical center (REMC), local emergency medical center (LEMC), and local emergency medical institution (LEMI). External and temporal validation used data from emergency department (ED) of the study site from 2019 to 2021. Patient features obtained during the triage process and the initial KTAS scores were used to develop the prediction model. Federated learning was used to rectify the disparity in data quality between EDs. The patient's demographic information, vital signs in triage, mental status, arrival information, and initial KTAS were included in the input feature. Results: 3,626,154 patients' visits were included in the regional emergency medical center cohort; 8,278,081 patients' visits were included in the local emergency medical center cohort; and 48,652 patients’ visits were included in the local emergency medical institution cohort. The study site cohort, which is used for external and temporal validation, included 135,780 patients visits. Among the patients in the REMC and study site cohorts, KTAS level 3 patients accounted for the highest proportion at 42.4% and 45.1%, respectively, whereas in the LEMC and LEMI cohorts, KTAS level 4 patients accounted for the highest proportion. The area under the receiver operating characteristic curve for the prediction model was 0.786, 0.750, and 0.770 in the external and temporal validation. Patients with revised KTAS scores had a higher admission rate and ED mortality rate than those with unaltered KTAS scores. Conclusions: This novel system might accurately predict the likelihood of KTAS acuity revision and support clinician-based triage.

Background/Purpose: Recently optimized models for selecting the locations of hospitals capable of providing endovascular thrombectomy (EVT) did not consider the accuracy of the prehospital stroke scale assessment and possibility of secondary transport. Our study aimed to propose a new model for selecting existing hospitals with intravenous thrombolysis capability to become EVT-capable hospitals. Methods: A sequential order was provided to upgrade hospitals providing intravenous thrombolysis, using a mixed integer programming model based on current medical resource allocation. In addition, we drafted a centralized plan to redistribute existing EVT resources by redetermining locations of EVT-capable hospitals. Using historical data of 7679 on-scene patients with suspected stroke, the model was implemented to determine the hospital that maximizes the number of patients receiving EVT treatment within call-to-definitive-treatment time. Results: All suspected stroke patients were sent to EVT-capable hospitals directly under the current medical resource allocation model. After upgrading one additional hospital to become an EVT-capable hospital, the percentage of patients receiving definitive treatment within the standard call-to-definitive-treatment time was elevated from 68.82% to 72.97%. In the model, assuming that there is no hospital providing EVT, all patients suspected of stroke will be sent to EVT-capable hospitals directly after upgrading three or more hospitals to be able to provide treatment. Conclusion: All patients eligible for acute stroke treatment are sent to EVT-capable hospitals in the simulation under the current medical resource allocation model. This model can be utilized to provide insights for capacity redistribution in other regions.

Aims: The purpose of this scoping review was to identify and synthesise existing research evidence on emotions in the context of emergency phone calls to emergency medical services (EMS) involving out-of-hospital cardiac arrest (OHCA). The specific objectives were to identify studies that (1) described emotions during emergency OHCA calls; (2) specified an instrument or method for measuring/assessing emotions; and (3) examined the relationship between emotions and call outcomes or patient outcomes. Methods/Data sources: Five databases were searched on 18 November 2021: Medline, Embase, PsycInfo, CINAHL, and the Cochrane Review Database. Included studies required the following three concepts to be addressed: emotions in the context of EMS calls that involved OHCA. Calls also needed to be made by a ‘second-party’ caller; and each study needed to address at least one of the three specific objectives, as outlined above.The review was conducted in accordance with the Joanna Briggs Institute guidelines for evidence synthesis for scoping reviews. Results: Thirteen eligible studies were included for synthesis. All studies met Objective 1; six studies met Objective 2; and seven met Objective 3. One study reported patient fatality due to heightened emotions and ensuing ineffective communications between callers and call-takers. Conclusion: The review highlights a significant gap in the evidence base of emotions in emergency OHCA-related calls, and the need for a more comprehensive and effective method in assessing and measuring emotions in this context. Relationships between emotions (their expressions and perceptions) and call outcomes (including patient outcomes) also need more rigorous investigation.

Background/purpose: The study aim was to develop a model for predicting patients with emergency medical service (EMS) witnessed out-of-hospital cardiac arrest (OHCA). Methods: We used fire-based EMS data from Taipei city to develop the prediction model. Patients included in this study were those who were initially alive, non-traumatic, and age ≧20 years. Data were extracted from electronic records of ambulance run sheets and an Utstein-style OHCA registry. The primary outcome (EMS-witnessed OHCA) was defined as cardiac arrest occurring during the service of emergency medical technicians before arrival at a receiving hospital. Area under the receiver operating characteristic curve (AUROC) and the Hosmer–Lemeshow (HL) test were used to examine discrimination and calibration. The point value system with Youden's J Index was used to find the optimal cut-off value. Results: From 2011 to 2015, a total of 252,771 patients were included. Of them, 660 (0.26%) were EMS-witnessed OHCA. The model, including the predictors of male gender, respiratory rate≦10 cycles/min, heart rate

Background: The mortality rate of myocardial infarction in China has increased dramatically in the past three decades. Although emergency medical service (EMS) played a pivotal role for the management of patients with ST-segment elevation myocardial infarction (STEMI), the corresponding data in China are limited., Methods: An observational analysis was performed in 26,305 STEMI patients, who were documented in China acute myocardial infarction (CAMI) Registry and treated in 162 hospitals from January 1st, 2013 to January 31th, 2016. We compared the differences such as demographic factors, social factors, medical history, risk factors, socioeconomic distribution and treatment strategies between EMS transport group and self-transport group., Results: Only 4336 patients (16.5%) were transported by EMS. Patients with symptom onset outside, out-of-hospital cardiac arrest and presented to province-level hospital were more likely to use EMS. Besides those factors, low systolic blood pressure, severe dyspnea or syncope, and high Killip class were also positively related to EMS activation. Notably, compared to self-transport, use of EMS was associated with a shorter prehospital delay (median, 180 vs. 245 min, P < 0.0001) but similar door-to-needle time (median, 45 min vs. 52 min, P = 0.1400) and door-to-balloon time (median, 105 min vs. 103 min, P = 0.1834)., Conclusions: EMS care for STEMI is greatly underused in China. EMS transport is associated with shorter onset-to-door time and higher rate of reperfusion, but not substantial reduction in treatment delays or mortality rate. Targeted efforts are needed to promote EMS use when chest pain occurs and to set up a unique regionalized STEMI network focusing on integration of prehospital care procedures in China., Trial Registration: ClinicalTrials.gov (NCT01874691), retrospectively registered June 11, 2013., Competing Interests: Declaration of competing interest All authors declare no competing interest., (Copyright © 2024. Published by Elsevier B.V.)

Aim: To identify and appraise evidence relating to the features of an Emergency Medicine System call interaction that enable, or inhibit, an Emergency Medical Dispatcher’s recognition that a patient is in out-of-hospital cardiac arrest, or at imminent risk of out-of-hospital cardiac arrest. Methods: All study designs were eligible for inclusion. Data sources included Medline, BNI, CINAHL, EMBASE, PubMed, Cochrane Database of Systematic Reviews, AMED and OpenGrey. Stakeholder resources were screened and experts in resuscitation were asked to review the studies identified. Studies were appraised using the Mixed Methods Appraisal Tool. Synthesis was completed using a segregated mixed research synthesis approach. Results: Thirty-two studies were included in the review. Three main themes were identified: Key features of the Emergency Medical Service call interaction; Managing the Emergency Medical Service call; Emotional distress. Conclusion: A dominant finding is the difficulty in recognising abnormal/agonal breathing during the Emergency Medical Service call. The interaction between the caller and the Emergency Medical Dispatcher is critical in the recognition of patients who suffer an out-of-hospital cardiac arrest. Emergency Medical Dispatchers adapt their approach to the Emergency Medical Service call, and regular training for Emergency Medical Dispatchers is recommended to optimise out-of-hospital cardiac arrest recognition. Further research is required with a focus on the Emergency Medical Service call interaction of patients who are alive at the time of the Emergency Medical Service call and who later deteriorate into OHCA.PROSPERO registration: CRD42019155458.

Aims: Emergency medical service (EMS) may detect seizure-like activity in addition to agonal breathing in out-of-hospital cardiac arrest (OHCA). This study investigates the incidence and predictors of seizure-like activity in nontraumatic, EMS-witnessed OHCA and their association with clinical outcomes. Methods: This prospective study explored EMS-recorded concomitant signs/symptoms that lead to the requirement of advanced life support in patients with nontraumatic, EMS-witnessed OHCA. Seizure-like activity includes abnormal/tonic movements and eyeball deviation. Sudden OHCA was defined by the absence of signs/symptoms of impending cardiac arrest at EMS contact or progressive circulatory/respiratory depressions after the EMS contact. Neurologically favorable outcomes were defined as the cerebral performance category score of 1 or 2 at discharge. Results: From April 2012 to March 2020, 465 patients were studied. The incidence of seizure-like activity at cardiac arrest onset was 12.7% (59/465) in all patients with nontraumatic, EMS-witnessed OHCA. Seizure-like activity was common during shockable initial rhythm; in patients with “sudden” OHCA; and in patients who were younger, male, or had a presumed cardiac etiology. In a boosting tree, shockable initial rhythm, “sudden” OHCA, and presumed cardiac etiology were major factors that predicted the incidence of seizure-like activity. Multivariate logistic regression models including and excluding OHCA characteristics revealed that both seizure-like activity and agonal breathing recorded during EMS-witnessed OHCA were associated with favorable outcomes. Conclusions: Seizure-like activity is a major sign/symptom of the onset of “sudden” cardiac arrest of presumed cardiac etiology, particularly in patients with shockable initial rhythms. Such activity were significantly associated with neurologically favorable outcomes.

Objective: To evaluate performance of initial steps of newborn resuscitation according to the American Heart Association and American Academy of Pediatrics’ Neonatal Resuscitation Program (NRP) guidelines in the prehospital setting. Study Design: Observational study of 265 paramedics and Emergency Medical Technicians (EMTs) from 45 EMS teams recruited from public fire and private transport agencies in a major metropolitan area. Participants completed a baseline questionnaire assessing demographics, experience, and comfort in caring for children. Simulations were conducted April 2015 to March 2016. Technical performance was evaluated by blinded video review. NRP actions were assessed using a structured performance tool. Results: Two hundred sixty-five EMS providers responded to survey questions and participated in simulations. In total, 16% reported feeling very or extremely comfortable caring for children

Introduction: Stress, described as an adaptation of the body to an event, is a considerable problem among health workers, especially for those who work in emergency situations, as they very often have to face complex situations. It has been proven that stress affects the performance of health professionals, which is why it is interesting to measure it in these situations, to be able to know what methods to implement to reduce it in future events. Despite having previous measurements in healthcare personnel during clinical simulations, this study is relevant because stress has never before been measured in EMS professionals when performing their work., Objective: To determine the acute stress experienced by professionals in an Emergency Medical Service (EMS) when handling five types of clinical emergencies. As secondary objectives, to determine if there were differences in the increases in stress in relation to sex, age, profession, team, and above all, type of emergency handled., Method: The following were measured for the analysis: physiological (mean heart rate (HR), systolic (SBP) and diastolic (DBP) blood pressure), and biochemical (salivary alpha amylase (sAA) activity) markers, before (Basal) and after (Post-Stress) the interventions of 27 professionals from an EMS., Results: In general, the results obtained showed significant differences between the baseline measurement of physiological and biochemical markers versus the post-exposure measurement. Some of the differences in stress levels in relation to sex and professional role are striking., Conclusion: The determination of acute stress experienced by professionals from an EMS in a real emergency showed significant increases in the sAA enzymatic marker of acute stress. These results are the first data published in this regard, and could be used as a reference to follow in clinical simulation in the training of students and the training of nursing professionals., Implications for Clinical Practice: Evidence based studies are needed to improve the education and training of emergency and intensive care professionals. The results from are a great step in the analysis of the real stress that professionals are subjected to when they handle different emergencies., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier Ltd. All rights reserved.)

Background: Emergency departments (ED) and prehospital emergency medical services (EMS) will experience new or increasing challenges due to the changing climate. The aims of this study was to add knowledge about these challenges in Finland and to help EMS and ED operators to prepare for the effects of climate change., Methods: A two-round Delphi study was conducted. Ten participants expressed their views of climate change-related challenges currently and in the future, and how to prepare for challenges ahead. First-round questions based on the literature search about the climate-related impacts on EMS and ED. The stage one data was analysed by thematic analysis, which generated the second-round survey where the probability of the statements was estimated., Results: Various climate change-related challenges were recognized such as negative health impacts, the increased workload, difficulties with the EMS operations and problems with the functions of society. Preparation of action plans was considered important in case for incidents and emergencies., Conclusion: The study indicated that climate change may cause various challenges for EMS and ED in Finland. To meet the future challenges, it is important to identify potential future risks and create plans to manage them. Further studies are needed to create climate resilient healthcare systems., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Authors. Published by Elsevier Ltd.. All rights reserved.)

Introduction: Basic life support (BLS) is an emergency skill that includes performing appropriate cardiopulmonary resuscitation (CPR). Out-of-hospital cardiac arrest (OHCA) is a leading cause of mortality worldwide and is rising in Nepal. After an OHCA event, a bystander starting CPR quickly has been shown to increase the survival rate. While the Nepali police are generally the first responders to emergencies in rural parts, they are not trained in BLS. This program assesses a pilot training of hands-only CPR and choking first aid to the Nepal Police and Nepal Army participants in rural Nepal., Methods: A community-based nonprofit organization, HAPSA-Nepal, coordinated with local government to pilot this program. The program included pre- and post-tests, lectures, videos, and small group hands-on exercises; facilitators included faculty emergency physicians, residents, and medical officers. Structured pre- andp post-test questionnaires, confidence surveys, and skills checklists were conducted. Descriptive analysis examined the respondent's characteristics, and paired t-test was used to compare pretest and post-test scores., Results: A total of 126 participants received the training in this pilot phase. Prior to this training, 98.4% of the participants had not received any CPR training, and 100% of the participants had not received training on first aid for choking. The average pretest score was 4.4 with 95% CI ± 1.75, and the average post-test score was 8.06 with 95% CI ± 1.73 (out of a total of 11). All participants passed the skills assessment., Conclusions: Locally adapted BLS training programs that included hands-only CPR and choking first aid showed a significant knowledge gain and skills competence among the frontline participants.

Background: Trauma is the leading cause of death in patients <45 years living in high-resource settings. However, penetrating chest injuries are still relatively rare in Europe - with an upwards trend. These cases are of particular interest to emergency medical services (EMS) due to available invasive treatment options like chest tube placement or resuscitative thoracotomy. To date, there is no sufficient data from Austria regarding penetrating chest trauma in a metropolitan area, and no reliable source to base decisions regarding further skill proficiency training on., Methods: For this retrospective observational study, we screened all trauma emergency responses of the Viennese EMS between 01/2009 and 12/2017 and included all those with a National Advisory Committee for Aeronautics (NACA) score ≥ IV (= potentially life-threatening). Data were derived from EMS mission documentations and hospital files, and for those cases with the injuries leading to cardiopulmonary resuscitation (CPR), we assessed the EMS cardiac arrest registry and consulted a forensic physician., Results: We included 480 cases of penetrating chest injuries of NACA IV-VII (83% male, 64% > 30 years old, 74% stab wounds, 16% cuts, 8% gunshot wounds, 56% inflicted by another party, 26% self-inflicted, 18% unknown). In the study period, the incidence rose from 1.4/100,000 to 3.5/100,000 capita, and overall, about one case was treated per week. In the cases with especially severe injury patterns (= NACA V-VII, 43% of total), (tension-)pneumothorax was the most common injury (29%). The highest mortality was seen in injuries to pulmonary vessels (100%) or the heart (94%). Fifty-eight patients (12% of total) deceased, whereas in 15 cases, the forensic physician stated survival could theoretically have been possible. However, only five of these CPR patients received at least unilateral thoracostomy. Regarding all penetrating chest injuries, thoracostomy had only been performed in eight patients., Conclusions: Severe cases of penetrating chest trauma are rare in Vienna and happened about once a week between 2009 and 2017. Both incidence and case load increased over the years, and potentially life-saving invasive procedures were only reluctantly applied. Therefore, a structured educational and skill retention approach aimed at both paramedics and emergency physicians should be implemented., Trial Registration: Retrospective analysis without intervention., Competing Interests: Declaration of Competing Interest We declare: Mario Krammel is medical director of the Viennese EMS. Sebastian Schnaubelt is Vice-Chair of the Austrian Resuscitation Council. Both do not see these affiliations as conflicting with the content of the manuscript at hand. The other authors declare no COI relevant to this study., (Copyright © 2023 The Author(s). Published by Elsevier Ltd.. All rights reserved.)

Background: The IMMEDIATE Trial of emergency medical service use of intravenous glucose–insulin–potassium (GIK) very early in acute coronary syndromes (ACS) showed benefit for the composite outcome of cardiac arrest or in-hospital mortality. Objectives: This analysis of IMMEDIATE Trial data sought to develop a predictive model to help clinicians identify patients at highest risk for this outcome and most likely to benefit from GIK. Methods: Multivariable logistic regression was used to develop a predictive model for the composite endpoint cardiac arrest or in-hospital mortality using the 460 participants in the placebo arm of the IMMEDIATE Trial. Results: The final model had four variables: advanced age, low systolic blood pressure, ST elevation in the presenting electrocardiogram, and duration of time since ischemic symptom onset. Predictive performance was good, with a C statistic of 0.75, as was its calibration. Stratifying patients into three risk categories based on the model's predictions, there was an absolute risk reduction of 8.6% with GIK in the high-risk tertile, corresponding to 12 patients needed to treat to prevent one bad outcome. The corresponding values for the low-risk tertile were 0.8% and 125, respectively. Conclusions: The multivariable predictive model developed identified patients with very early ACS at high risk of cardiac arrest or death. Using this model could assist treating those with greatest potential benefit from GIK.

Introduction: Emergency medical service (EMS) resources are limited and should be reserved for incidents of appropriate acuity. Over-triage in dispatching of EMS resources is a global problem. Analysing patients that are not transported to hospital is valuable in contributing to decision-making models/algorithms to better inform dispatching of resources. The aim is to determine variables associated with patients receiving an emergency response but result in non-conveyance to hospital., Methods: A retrospective cross-sectional study was performed on data for the period October 2018 to September 2019. EMS records were reviewed for instances where a patient received an emergency response but the patient was not transported to hospital. Data were subjected to univariate and multivariate regression analysis to determine variables predictive of non-transport to hospital., Results: A total of 245 954 responses were analysed, 240 730 (97.88 %) were patients that were transported to hospital and 5 224 (2.12 %) were not transported. Of all patients that received an emergency response, 203 450 (82.72 %) patients did not receive any medical interventions. Notable variables predictive of non-transport were green (OR 4.33 (95 % CI: 3.55-5.28; p<0.01)) and yellow on-scene (OR 1.95 (95 % CI: 1.60-2.37; p<0.01).Incident types most predictive of non-transport were electrocutions (OR 4.55 (95 % CI: 1.36-15.23; p=0.014)), diabetes (OR 2.978 (95 % CI: 2.10-3.68; p<0.01)), motor vehicle accidents (OR 1.92 (95 % CI: 1.51-2.43; p<0.01)), and unresponsive patients (OR 1.98 (95 % CI: 1.54-2.55; p<0.01)). The highest treatment predictors for non-transport of patients were nebulisation (OR 1.45 (95 % CI: 1.21-1.74; p<0.01)) and the administration of glucose (OR 4.47 (95 % CI: 3.11-6.41; p<0.01))., Conclusion: This study provided factors that predict ambulance non-conveyance to hospital. The prediction of patients not transported to hospital may aid in the development of dispatch algorithms that reduce over-triage of patients, on-scene discharge protocols, and treat and refer guidelines in EMS., Competing Interests: At the time of peer review, Dr Willem Stassen and Prof Lee Wallis were editors of the African Journal of Emergency Medicine. Both Dr Stassen and Prof Wallis were not involved in the editorial workflow for this manuscript. The African Journal of Emergency Medicine applies a double blinded process for all manuscript peer reviews. The authors declared no further conflict of interest., (© 2023 The Authors. Published by Elsevier B.V. on behalf of African Federation for Emergency Medicine.)

Introduction: Paramedics work in diverse, demanding prehospital settings. We examined the prevalence of critical incident (CI) experiences, critical incident stress (CI-S), and CI-S association with the intention to leave the paramedic profession, as well as the needed and received support for CI-S among Finnish paramedics., Methods: In 2022, n = 427 Finnish paramedics from eight different organizations responded to a modified Emergency Medical Services (EMS) Critical Incident Stress Inventory and reported the CIs experienced during their EMS careers and the related CI-S within the last six months. Statistical analyses were stratified by gender., Results: All the listed 31 CIs had been experienced by the Finnish paramedics, and the experiences increased with work experience, especially among men. CI-S had wide variation, seemed to increase with work experience, and was mainly not associated with the intention to leave the profession. Support for coping with CI-S was most often received from colleagues, then from family members, friends, and to some extent, managers., Conclusions: Because of the inherent nature of the demands and features of the paramedic work, experiencing CIs is unavoidable. Examining effective coping strategies, organizational support, and managerial practices are needed to support highly skilled paramedics in their demanding work., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 The Authors. Published by Elsevier Ltd.. All rights reserved.)

Introduction: Leadership during major incidents has been described as challenging and dependent on the non-technical skills of leaders. The complex tunnel environment contributes to an even more challenging incident response. Hence, this study aims to identify elements of non-technical skills when leading collaborative road-tunnel incident responses., Methods: The study was conducted using four focus group discussions with tactical leaders from the rescue services, emergency medical services, police, and collaborative organizations from the emergency dispatch center and road-traffic control center. The data was analyzed using a non-technical skills taxonomy., Results: Twelve non-technical skill elements emerged. Abilities to gather, sort, and proactively share relevant information and dispatch the correct resources were described. Additionally, abilities to prioritize actions and cooperate to establish a shared operational picture were found. Abilities to adjust leadership to the tunnel environment and conditions and assess the severity of the incident to make decisions were also described., Conclusion: When managing a road-tunnel incident response, tactical leaders utilizes a range of non-technical skills. The elements of these skills were found to be specific both to the tunnel environment and the collaborative nature of the response. Further studies into and development of these skills are needed to facilitate a timely response and minimize potential risks to personnel or evacuees in future tunnel incident responses., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 The Author(s). Published by Elsevier Ltd.. All rights reserved.)

In rural areas, services to support daily life are generally short and a large disparity exists from place to place. This study proposes an index to measure the level of emergency medical service, a minimum service to support daily life, at given locations. The required characteristics of the level of service index are firstly discussed, and then an accessibility type index is proposed with holding the characteristics pointed out in the discussion. By using this index, we develop a systematic method to find the sub-system of that improvement that contributes the most to raising the level of service. This method gives us the order of improvement over sub-systems under the restrictions of budget, time, and other resources. The usefulness of the methodology is examined through a case study.

Background: As stimulant use increases across the United States, emergency medical services (EMS) are crucial touchpoints in the health care system. To better measure the prevalence of stimulant use, misuse, and EMS incidents related to stimulant intoxication, definitions for stimulant-related incidents (SRIs) are needed., Methods: We used the Massachusetts Ambulance Trip Record Information System (MATRIS) from 2013 to 2020 to develop definitions of stimulant-related incidents. EMS runs reported to MATRIS were categorized based on stimulant-related words and symptoms. The three tiers were "any stimulant use" (class 1), "problematic stimulant use" (class 2), and "acute stimulant-related incidents" (class 3). A group of four reviewers studied over 650 cases in eight rounds to refine the search terms, achieving definitions with a correct characterization of over 80% of cases that the code selected., Results: SRI definitions were applied against all EMS runs within Massachusetts between 2013 and 2020 (n = 6,584,836 runs). Of these, 43,538 (0.7%) met the class 1 definition, 38,669 (0.6%) met the class 2 definition, and 19,157 (0.3%) met the class 3 definition. Incidents at all tiers of severity increased over time and were more likely to occur among younger adults and males. Race and ethnicity data indicated that Hispanic/Latinx and Black non-Hispanic/non-Latinx residents formed a disproportionately large percentage of SRIs relative to their total percentage of EMS runs., Conclusions: The prevalence of all three tiers of SRIs are increasing in Massachusetts, and this protocol provides a source of administrative data on stimulant use that complements sources such as hospital, treatment-based, and/or prescribing records., (Copyright © 2022 Elsevier B.V. All rights reserved.)

Background: We know that ambulance staff may have sparse knowledge on how to comply with care approaches that ensure appropriate hygiene in the ambulance, but we do not know if and how the COVID-19 pandemic has affected ambulance staff's perceived compliance with hygiene routines., Aim: To investigate ambulance staff's self-reported hand hygiene (HH) perceptions and compliance; and to explore if and how the COVID-19 pandemic has affected ambulance staff's perceived compliance with hygiene routines., Methods: A cross-sectional study design using the WHO-validated Perception Survey for Healthcare Workers regarding hygiene. Thematic analysis and descriptive statistics were used for analysis., Results: 204 surveys were analysed, 92% of participants stated that their hygiene routine compliance had improved during the COVID-19 pandemic, and some participants also described that their colleagues' practice had improved. These improvements were reportedly driven by the need to acquire new knowledge to deal with the pandemic and sometimes with fear., Conclusions: Experience acquired during the pandemic needs to be sustainable if we are to increase HH and hygiene routine compliance in ambulance services. Interventions aimed at changing ambulance staff's perceived behaviour are warranted, and stakeholders should try and identify the personal motivations that lead these staff to seek self-betterment regarding HH and hygiene routine compliance. Otherwise, the risk of patients suffering from healthcare-associated infection may not decrease as wished., (Copyright © 2022 The Author(s). Published by Elsevier Ltd.. All rights reserved.)

Objective: To analyze geographic dispersion, demographic factors, clinical features of patients attended and response times of a helicopter emergency medical service in a region of Spain., Methods: According to the principles of the Declaration of Helsinki and to the standards of Good Clinical Practice, a cross-sectional observational study from January 2014 to December 2016 was carried out. Socio-demographic, clinical and transfer related variables were analyzed from an anonymized database loaned by the service., Results: 642 missions were flown (on average 0.59 flights per day). The patients were 65.6% males (they were significantly younger than women were) and 79% older than 45. Primary transfers composed 68.8% of cases. Medical pathologies were the most prevalent (74.9%), followed by traumatic pathologies (19.8%). Cardiovascular pathologies took up 68.8% of attended medical pathologies and 51.56% of the total of recorded cases. The accident rate was 20.25% and the response time in 75% of cases was under 32 min. Twenty deceased patients were registered (70% males)., Conclusions: This study reports for the international community the features of several Spanish HEMS and profile of patients attended. Adult men are a common profile and cardiovascular issues have replaced traumatic issues as main healthcare demand. However, it should be confirmed because it could be due to differences in local profile of patients. Men had higher risk of road traffic and occupational accidents as well as a higher mortality than women did. Socio-demographical and organizational aspects have been provided that could be taken into consideration to implement new air emergency services., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2020 Elsevier Ltd. All rights reserved.)

Objectives: The extrication of patients following a road traffic collision is among the basic procedures in emergency medicine. Thus, extrication is a frequently performed procedure by most of the emergency medical services worldwide. The appropriate extrication procedure depends on the patient's current condition and accompanying injuries. A rapid extrication should be performed within a few minutes, and the cervical spine (at least) should be immobilized. To our knowledge, the scientific literature and current guidelines do not offer detailed recommendations on the extrication of injured patients. Thus, the aim of the current study is to compare the effectiveness of spinal stabilization during various out-of-hospital extrication procedures., Methods: This is an explorative, biomechanical analysis of spine motion during different extrication procedures on an example patient. Movement of the cervical spine was measured using a wireless human motion tracker. Movement of the thoracic and lumbar spine was quantified with 12 strain gauge sensors, which were positioned paravertebrally on both sites along the thoracic and lumbar spine. To interpret angular movement, a motionscore was developed based on newly defined axioms on the biomechanics of the injured spine., Results: Self-extrication showed the least spinal movement (overall motionscore sum = 667). Movement in the cervical spine could further be reduced by applying a cervical collar. The extrication by a rescue boa showed comparable results in overall spinal movement compared to the traditional extrication via spineboard (overall motionscore sum = 1862vs. 1743). Especially in the cervical spine, the spinal movement was reduced (motionscore sum = 339 vs. 595). However, the thoracic spine movement was increased (motionscore sum = 812 vs. 432)., Conclusion: In case of a suspected cervical spine injury, guided self-extrication seems to be the best option. If the patient is not able to perform self-extrication, using a rescue boa might reduce cervical spinal movement compared to the traditional extrication procedure. Since promising results are shown in the case of extrication using a patient transfer sheet that has already been placed below the driver, future developments should focus on novel vehicle seats that already include an extrication device., Competing Interests: Declaration of Competing Interest DH and LS are PHTLS instructors. BG is consulting the PAX company and receives revenue from the sale of the rescue boa. The other authors declare that they have no competing interests., (Copyright © 2019 The Author(s). Published by Elsevier Ltd.. All rights reserved.)

Introduction: Historically, performance within the Prehospital Emergency Care (PEC) setting has been assessed primarily based on response times. While easy to measure and valued by the public, overall, response time targets are a poor predictor of quality of care and clinical outcomes. Over the last two decades however, significant progress has been made towards improving the assessment of PEC performance, largely in the form of the development of PEC-specific quality indicators (QIs). Despite this progress, there has been little to no development of similar systems within the low- to middle-income country setting. As a result, the aim of this study was to identify a set of QIs appropriate for use in the South African PEC setting., Methods: A three-round modified online Delphi study design was conducted to identify, refine and review a list of QIs for potential use in the South African PEC setting. Operational definitions, data components and criteria for use were developed for 210 QIs for inclusion into the study., Results: In total, 104 QIs reached consensus agreement including, 90 clinical QIs, across 15 subcategories, and 14 non-clinical QIs across two subcategories. Amongst the clinical category, airway management (n = 13 QIs; 14%); out-of-hospital cardiac arrest (n = 13 QIs; 14%); and acute coronary syndromes (n = 11 QIs; 12%) made up the majority. Within the non-clinical category, adverse events made up the significant majority with nine QIs (64%)., Conclusion: Within the South Africa setting, there are a multitude of QIs that are relevant and appropriate for use in PEC. This was evident in the number, variety and type of QIs reaching consensus agreement in our study. Furthermore, both the methodology employed, and findings of this study may be used to inform the development of PEC specific QIs within other LMIC settings., Competing Interests: Prof Lee Wallis is an editor of the African Journal of Emergency Medicine. Prof Wallis was not involved in the editorial workflow for this manuscript. The African Journal of Emergency Medicine applies a double blinded process for all manuscript peer reviews. The authors declared no further conflict of interest., (2019 African Federation for Emergency Medicine. Publishing services provided by Elsevier.)

Background: To develop and validate a risk stratification model of severe injury (SI) and death to identify and prioritize road traffic injury (RTI) patients for transportation to an appropriate trauma center (TC)., Methods: A 2-phase multicenter-cross-sectional study with prospective data collection was collaboratively conducted using 9 dispatch centers (DC) across Thailand. Among the 9 included DC, 7 and 2 DCs were used for development and validation, respectively. RTI patients who were treated and transported to hospitals by advanced life support (ALS) response units were enrolled. Multiple logistic regression was used to derive risk prediction score of death in 48 h and SI (new injury severity score ≥ 16). Calibration/discrimination performances were explored., Results: A total of 5359 and 2097 RTIs were used for development and external validation, respectively. Seven and 9 predictors among demographic data, mechanism of injury, physic data, EMS operation, and prehospital managements were significant predictors of death and SI, respectively. Risk prediction models fitted well with the developed data (O/E ratios of 1.00 (IQR: 0.69, 1.01) and 0.99 (IQR: 0.95, 1.05) for death and SI, respectively); and the C statistics of 0.966 (0.961, 0.972) and 0.913 (0.905, 0.922). The risk scores were further stratified as low, moderate and high risk. The derive models did not fit well with external data but they were improved after recalibrating the intercepts. However, the model was externally good/excellent discriminated with C statistics from 0.896 (0.871, 0.922) to 0.981 (0.971, 0.991)., Conclusion: Risk prediction models of death and SI were developed with good calibration and excellent discrimination. The model should be useful for ALS response units in proper allocation of patients., (Copyright © 2019 The Authors. Published by Elsevier Ltd.. All rights reserved.)

Aim of the Study: Patients with non ST-segment elevated acute coronary syndrome justify specific management in a hospital with an Intensive Cardiac Care Unit. In our area, these transfers are often provided by the Emergency Medical Service. Nevertheless we wonder whether a quasi-systematic medicalization of these patients is rational., Patients and Method: We tried to authenticate the need for medicalization of these patients through a prospective study including any patient with acute non-ST elevation Coronary Syndrome managed in one of the peripheral hospitals of the area and transferred to the major hospital center in La Roche-sur-Yon. We noted all the complications that occurred during the transfer and, if need be, when these complications required medical intervention., Results: Out of 226 patients included, 19 had a complicated form of acute non-ST elevation Coronary Syndrome. Out of the remaining 207 patients, 16 (7.7 %) showed a complication during their transfer, 5 of which underwent a medical intervention, none of which was immediately vital. Nevertheless, the statistical analysis did not highlight any significant worsening factors., Conclusion: The low rate of complications occurring during the transfer of initially stable patients encourages us to limit our indications of medicalization in favour of only the unstable patients or having a complication of their non-ST elevation acute coronary syndrome., (Copyright © 2018 Elsevier Masson SAS. All rights reserved.)

Introduction: Prehospital care is defined as any medical attention provided outside the hospital environment. This study aims to study the operation of a regional SAMU by assessing electronic records of cases managed and to evaluate demand patterns over time., Methods: A retrospective, cross-sectional study was conducted through an analysis of emergency calls handled between the years of 2009 and 2013 by the SAMU Metropolitan 2 Region mobile emergency care service, located in Niterói, Brazil. Nonparametric tests were used to evaluate differences in the variables of interest between the two halves of the 5-year period of analysis and annually., Results: The total call volume during the period of analysis was 590,902 (monthly mean [SD], 9848 [3764]; 95%CI = 8875 to 10,820). Analysis of calls over time revealed a significant decline in call volume (p = 0.008), mainly between the year 2009 and subsequent years (p < 0.001). The vast majority of patients were adults with clinical conditions (average = 2311). Predominantly, calls were made to request prehospital assistance at the patient's home, and the most prevalent age range was 41-50 years., Conclusion: The SAMU Metropolitan 2 regional emergency medical service predominantly attended to middle-aged women at their homes. Total call volume has been decreasing, perhaps reflecting a multifactorial phenomenon and improvements in the primary health care network., (Copyright © 2018. Published by Elsevier Ltd.)

Background: To date there has been limited published data presenting the characteristics and timeliness of the management in an Emergency Department (ED) for culturally and linguistically diverse (CALD) patients presenting with chest pain. This study aimed to describe the presenting characteristics and processing times for CALD patients with chest pain compared to the Australian-born population, and current guidelines., Methods: This study was a cross sectional analysis of a cohort of patients who presented with chest pain to the metropolitan hospital between 1 July 2012 and 30 June 2014., Results: Of the total study population (n=6640), 1241 (18.7%) were CALD and 5399 (81.3%) were Australian-born. CALD patients were significantly older than Australian-born patients (mean age 62 vs 56years, p<0.001). There were no differences in the proportion of patients who had central chest pain (74.9% vs 75.7%, p=0.526); ambulance utilisation (41.7% vs 41.1%, p=0.697); and time to initial treatment in ED (21 vs 22min, p=0.375). However, CALD patients spent a significantly longer total time in ED (5.4 vs 4.3h, p<0.001). There was no difference in guideline concordance between the two groups with low rates of 12.5% vs 13%, p=0.556. Nonetheless, CALD patients were 22% (95% CI, 0.65, 0.95, p=0.015) less likely to receive the guideline management for chest pain., Conclusions: The initial emergency care was equally provided to all patients in the context of a low rate of concordance with three chest pain related standards from the two guidelines. Nonetheless, CALD patients spent a longer time in ED compared to the Australian-born group., (Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.)

Background: Uncontrolled haemorrhage is the leading cause of potentially preventable death in both civilian and military trauma patients. Animal studies and several case series have shown that hemostatic dressings reduce haemorrhage and might improve survival. One of these products is HemCon ChitoGauze(®). The objective of this study was to determine the effectiveness and safety of ChitoGauze in achieving hemostasis in massive traumatic bleeding in civilian emergency medical services., Methods: From June 2012 to December 2014, all ambulances of two emergency medical services in the Netherlands were equipped with ChitoGauze. The dressing was used according to protocol; if conventional treatment (gauze dressing with manual pressure) failed to control external traumatic bleeding or if conventional treatment was unlikely to achieve hemostasis. The ambulance personnel filled in an evaluation form after each use., Results: A total of 66 patients were treated with ChitoGauze during the study period. Twenty-one patients were taking anticoagulants or suffered from a clotting disorder. The injuries were located in the extremities (n=29), the head and face (n=29), or the neck, thorax and groin (n=8). In 46/66 patients, the use of ChitoGauze resulted in cessation of haemorrhage. In 13/66 patients, Chitogauze application reduced haemorrhage. ChitoGauze failed to control haemorrhage in 7/66 patients, whereby user error was a contributing factor in 3 of these failures. No side effects have been observed during treatment or transport of the patients and no adverse effects have been reported in discharge letters., Conclusion: This is the largest prospective study in civilian healthcare and the second largest case series with prehospital use of hemostatic dressings. It demonstrated that ChitoGauze is an effective and safe adjunct in the prehospital treatment of massive external traumatic haemorrhage., (Copyright © 2016 Elsevier Ltd. All rights reserved.)

Background: Injury due to falls is a major public health problem, especially for older people. We aimed to determine the accuracy of the ambulance call taker triage algorithm relative to paramedic assessment, and characterise variation in ambulance service demand for falls cases involving older adults over time and by residence type., Method: We obtained all ambulance case records for January 2008 to December 2011 for adults aged 65 or over in Melbourne, Australia. Data elements comprised age, gender, date and time of emergency call, dispatch category, location of incident and the patient's clinical condition as ascertained by paramedics. We compared cases coded as falls by the call taker triage algorithm with those identified by paramedics. We also examined temporal variation (hour of day and day of week) in ambulance service demand for cases involving older adults, and compared community-dwelling cases and those from Residential Aged Care Facilities (RACFs). We used negative binomial regression to compare counts and trigonometric regression to compare temporal variation patterns., Results: Over the four-year study period 77,891 falls cases involved older adults (6.5% of overall ambulance demand). Eighty-seven per cent of paramedic-assessed falls cases were correctly identified by the triage system. The RACF population was older (median age 87 years, IQR 82-91 vs. 82 years, IQR 76-87), had higher hospital transport rates (89.5% vs. 75.8%) and a higher incidence of falls at any age than the community-dwelling population. The temporal pattern for fall cases for all residence types peaked between 6:00 and 12:00, but fall cases from RACFs showed an additional peak in the evening between 17:00 and 20:00., Conclusion: Falls by older people are the second-biggest contributor to ambulance demand in Melbourne, consuming significant operational resources. Using call taker triage data instead of paramedic case records to calculate falls cases may underestimate the true incidence of falls by up to 13%. Temporal patterns can inform ambulance service policy and practice, falls referral and prevention programmes to optimise service delivery which will lessen the number of future falls cases., (Copyright © 2015 Elsevier Ltd. All rights reserved.)

Maternal and infant mortality has been a major concern in India with the Government taking serious efforts to achieve the Millennium Development Goals by 2015. Ganapathy Venkata Krishna Reddy Emergency Management and Research Institute (GVK EMRI) is one such effort and is the country's first emergency service provider working under the public-private partnership model to provide emergency response services and quality pre-hospital care to any sick person, pregnant mothers, and sick neonates. Since the introduction of the emergency medical services, institutional deliveries have increased in all states and union territories where the ambulances have been deployed and the majority of mothers have been provided the required emergency care at the appropriate time. This in turn has helped in considerably reducing the maternal mortality. GVK EMRI has partnered with the government of Tamil Nadu and deployed specialized neonatal ambulances to ensure safe transport of newborns. The safe transport of sick, vulnerable neonates and the improvement in survival of transported neonates over the years advocate scaling up of this program to other states, which would greatly contribute towards reducing infant and neonatal mortality., (Copyright © 2015 Elsevier Ltd. All rights reserved.)

Background: Patients suffering ST segment elevation myocardial infarction (STEMI) requiring transfer from a non-percutaneous coronary intervention (PCI) hospital to a PCI-capable hospital often have prolonged treatment times., Objective: For STEMI transfers, we changed from air to ground transportation, and carefully documented the impact on treatment times., Methods: This is a retrospective report between two hospitals within one STEMI system. The referring facility controls both air and ground ambulance services. After a 2-year period of air transportation with suboptimal treatment times, the referring hospital switched to ground transport. All pertinent times were carefully recorded and are reported here., Results: There were 43 patients included, approximately half were transported by air and half by ground. Comparing our early experience (air only) vs. our later experience (predominantly ground-transported patients), median door-in-door-out (DIDO) time at the first facility was 70 min vs. 35 min (p<0.001), median transport time was 20 min vs. 30 min (p<0.001), and median first medical contact to balloon time (FMC2b time) was 123 min vs. 90 min (p<0.001). After changing mode of transport, achievement of the national FMC2b time goal of <120 min rose from 47% to 92% (p<0.001)., Conclusions: We document a significantly reduced DIDO and FMC2b time after changing mode of transportation for STEMI patients transferred 30 miles for primary PCI. Utilizing ground rather than air transportation, the median FMC2b time was reduced from 123 to 90 min. We show that mode of transportation can dramatically reduce both DIDO time and FMC2b time., (Published by Elsevier Inc.)

Objective: To calculate the monetary value of the time factor per minute and per year for emergency services., Methods: The monetary values for ambulance emergency services were calculated for two different time factors, response time, which is the time from when a call is received by the emergency medical service call-taking center until the response team arrives at the emergency scene, and operational time, which includes the time to the hospital. The study was performed in two steps. First, marginal effects of reduced fatalities and injuries for a 1-minute change in the time factors were calculated. Second, the marginal effects and the monetary values were put together to find a value per minute., Results: The values were found to be 5.5 million Thai bath/min for fatality and 326,000 baht/min for severe injury. The total monetary value for a 1-minute improvement for each dispatch, summarized over 1 year, was 1.6 billion Thai baht using response time., Conclusions: The calculated values could be used in a cost-benefit analysis of an investment reducing the response time. The results from similar studies could for example be compared to the cost of moving an ambulance station or investing in a new alarm system., (Copyright © 2014 International Society for Pharmacoeconomics and Outcomes Research (ISPOR). Published by Elsevier Inc. All rights reserved.)