BACKGROUND: Heart disease is the primary cause of mortality in Canada and survival to hospital discharge from out-of-hospital cardiac arrest is low. OBJECTIVE: To provide an overview of the outcomes for out-of-hospital cardiac arrest in Canada. METHODS: A national, descriptive, Utstein-style analysis of cardiac arrest care and emergency medical services was conducted. Data were compiled from five sources: the City of Edmonton Emergency Response Department, the British Columbia Ambulance Service, the Nova Scotia Emergency Health Services, the Urgences-santé corporation of the Montreal Metropolitan region and the Ontario Prehospital Advanced Life Support (OPALS) Study database. RESULTS: There were 5288 cardiac arrests from a range of small communities to large provincial cardiac arrest registries in 2002. They were men (62.6% to 70.1%) in their sixties and seventies, witnessed (35.2% to 55.0%), rarely receiving bystander cardiopulmonary resuscitation (CPR) (14.7% to 46.0%), often in asystole (35.7% to 51.3%), arresting at home (56.1%) and rarely surviving to hospital discharge (4.3% to 9.0%). Bystander CPR and early first responder defibrillation were significantly associated with increased survival. Cardiac arrest incidence rates per 100,000 varied between 53 and 59 among provinces and followed a downward trend. CONCLUSIONS: The results of this study could be an important first step toward a national cardiac arrest registry comparing the impact of regional differences in patient and system characteristics. Many communities do not have accurate data on their performance with regards to the chain of survival, or need to significantly improve their capacity for providing citizen bystander CPR and rapid first responder defibrillation.
It has been stated that the Franco-German Emergency Medical Services System (FGS) has considerable drawbacks compared to the Anglo-American Emergency Medical Services System (AAS): 1. The key differences between the AAS and the FGS are that in the AAS, the patients is brought to the doctor, while in the FGS, the doctor is brought to the patient. 2. In the FGS, patients with urgent conditions usually are evaluated and treated by general practitioners in their offices or at the patient's home; initially, very few approach an emergency department. 3. Emergency patients with life-threatening trauma or disease are treated by emergency physicians at the scene and during transport. Paramedics often are first to arrive at the scene, and until the emergency physician arrives at the scene, are allowed to defibrillate, to intubate endotracheally, and to administer life-saving drugs (epinephrine endotracheally, glucose intravenously, etc.). 4. Prehospital emergency physicians treat patients at the scene and during transport. 5. Emergency patients are guaranteed to be reached by an appropriate emergency vehicle and a respective crew within 10 minutes in 80% of the responses and within 15 minutes in 95% of cases. 6. The FGS deploys qualified emergency physicians assisted by qualified paramedics as prehospital intensive care providers; extended immediate care is standard. Total Prehospital Times (TPT) and scene times only are minimally longer than in the AAS. 7. Emergency Medicine is recognized as a supra-specialty to the base specialties. Specific training programs exist for emergency physicians, medical directors of emergency medical services systems (EMSS), and chief emergency physicians (CEP). 8. Resuscitation attempts are carried out not only by anesthesiologists, but also by internists, surgeons, pediatricians, etc. Emergency medicine encompasses cardiopulmonary resuscitation (CPR) and shock cases, and patients with an acute myocardial infarction, stroke, poly-trauma, status asthmaticus, etc. Emergency patients are admitted directly to emergency departments of the hospitals, which, depending upon the size of the hospital. 9. The incidence of life-threatening trauma victims has decreased to <10% in the FGS. Of a total of 830,000 deaths/year, fatal trauma cases ranked the lowest at 4%. 10. Survival figures on cardiac arrest (asystole, ventricular fibrillation/ventricular tachycardia (VF/VT), pulseless electrical activity (PEA, etc.) reported in the German EMSS correspond to those in Europe and the United States. 11. Paramedic training is characterized by a two-year program followed by a theoretical and a practical examination. 12. Paramedics and emergency physicians-in-training are supervised at the scene and during transport. Quality assurance (Q/A) constitutes an integral and legally compulsory part of the EMSS. 13. In the majority of cases, the emergency patients are evaluated and treated by the respective specialties without delays caused by patient transfer to other hospitals. 14. The FGS does not require a greater number of ambulances and/or personnel than does the AAS. 15. The German healthcare system creates less expenses/capita than the does the U.S. system at a similar level of quality of care. 16. Emergency procedures are carried out by anesthesiologists, emergency physicians, surgeons, internists, and other specialists.
CONTEXT: Helicopter emergency medical services and their possible effect on outcomes for traumatically injured patients remain a subject of debate. Because helicopter services are a limited and expensive resource, a methodologically rigorous investigation of its effectiveness compared with ground emergency medical services is warranted. OBJECTIVE: To assess the association between the use of helicopter vs ground services and survival among adults with serious traumatic injuries. DESIGN, SETTING, AND PARTICIPANTS: Retrospective cohort study involving 223,475 patients older than 15 years, having an injury severity score higher than 15, and sustaining blunt or penetrating trauma that required transport to US level I or II trauma centers and whose data were recorded in the 2007-2009 versions of the American College of Surgeons National Trauma Data Bank. INTERVENTIONS: Transport by helicopter or ground emergency services to level I or level II trauma centers. MAIN OUTCOME MEASURES: Survival to hospital discharge and discharge disposition. RESULTS: A total of 61,909 patients were transported by helicopter and 161,566 patients were transported by ground. Overall, 7813 patients (12.6%) transported by helicopter died compared with 17,775 patients (11%) transported by ground services. Before propensity score matching, patients transported by helicopter to level I and level II trauma centers had higher Injury Severity Scores. In the propensity score-matched multivariable regression model, for patients transported to level I trauma centers, helicopter transport was associated with an improved odds of survival compared with ground transport (odds ratio [OR], 1.16; 95% CI, 1.14-1.17; P < .001; absolute risk reduction [ARR], 1.5%). For patients transported to level II trauma centers, helicopter transport was associated with an improved odds of survival (OR, 1.15; 95% CI, 1.13-1.17; P < .001; ARR, 1.4%). A greater proportion (18.2%) of those transported to level I trauma centers by helicopter were discharged to rehabilitation compared with 12.7% transported by ground services (P < .001), and 9.3% transported by helicopter were discharged to intermediate facilities compared with 6.5% by ground services (P < .001). Fewer patients transported by helicopter left level II trauma centers against medical advice (0.5% vs 1.0%, P < .001). CONCLUSION: Among patients with major trauma admitted to level I or level II trauma centers, transport by helicopter compared with ground services was associated with improved survival to hospital discharge after controlling for multiple known confounders.
Introduction Little is known about the existence, distribution, and characteristics of Emergency Medical Services (EMS) systems in Africa, or the corresponding epidemiology of prehospital illness and injury. METHODS: A survey was conducted between 2013 and 2014 by distributing a detailed EMS system questionnaire to experts in paper and electronic versions. The questionnaire ascertained EMS systems' jurisdiction, operations, finance, clinical care, resources, and regulatory environment. The discovery of respondents with requisite expertise occurred in multiple phases, including snowball sampling, a review of published scientific literature, and a rigorous search of the Internet. RESULTS: The survey response rate was 46%, and data represented 49 of 54 (91%) African countries. Twenty-five EMS systems were identified and distributed among 16 countries (30% of African countries). There was no evidence of EMS systems in 33 (61%) countries. A total of 98,574,731 (8.7%) of the African population were serviced by at least one EMS system in 2012. The leading causes of EMS transport were (in order of decreasing frequency): injury, obstetric, respiratory, cardiovascular, and gastrointestinal complaints. Nineteen percent of African countries had government-financed EMS systems and 26% had a toll-free public access telephone number. Basic emergency medical technicians (EMTs) and Basic Life Support (BLS)-equipped ambulances were the most common cadre of provider and ambulance level, respectively (84% each). CONCLUSION: Emergency Medical Services systems exist in one-third of African countries. Injury and obstetric complaints are the leading African prehospital conditions. Only a minority (<9.0%) of Africans have coverage by an EMS system. Most systems were predominantly BLS, government operated, and fee-for-service. Mould-Millman NK , Dixon JM , Sefa N , Yancey A , Hollong BG , Hagahmed M , Ginde AA , Wallis LA . The state of Emergency Medical Services (EMS) systems in Africa. Prehosp Disaster Med. 2017;32(3):273-283.
How can we meet the special needs of children for emergency medical services (EMS) when today's EMS systems are often unprepared for the challenge? This comprehensive overview of EMS for children (EMS-C) provides an answer by presenting a vision for tomorrow's EMS-C system and practical recommendations for attaining it. Drawing on many studies and examples, the volume explores why emergency care for children--from infants through adolescents--must differ from that for adults and describes what seriously ill or injured children generally experience in today's EMS systems. The book points the way to integrating EMS-C into current emergency programs and into broader aspects of health care for children. It gives recommendations for ensuring access to emergency care through the 9-1-1 system; training health professionals, from paramedics to physicians; educating the public; providing proper equipment, protocols, and referral systems; improving communications among EMS-C providers; enhancing data resources and expanding research efforts; and stimulating and supporting leadership in EMS-C at the federal and state levels. For those already deeply involved in EMS efforts, this volume is a convenient, up-to-date, and comprehensive source of information and ideas. More importantly, for anyone interested in improving the emergency services available to children--emergency care professionals from emergency medical technicians to nurses to physicians, hospital and EMS administrators, public officials, health educators, children's advocacy groups, concerned parents and other responsible adults--this timely volume provides a realistic plan for action to link EMS-C system components into a workable structure that will better serve all of the nation's children.
UNLABELLED: Emergency medical services (EMS) administrators seek methods to enhance system performance. One component scrutinized is the response time (RT) interval between call receipt and arrival on scene. While reducing RTs may improve survival, this remains speculative and unreported. OBJECTIVE: To determine the effect of current RTs on survival in an urban EMS system. METHODS: The study was conducted in a metropolitan county (population 620,000). The EMS system is a single-tier, paramedic service and provides all service requests. The 90% fractile RT specifications required for county compliance include 10:59 minutes for emergency life-threatening calls (priority I) and 12:59 minutes for emergency non-life-threatening calls (priority II). All emergency responses resulting in a priority I or priority II transport to a Level 1 trauma center emergency department over a six-month period were evaluated to determine the relation between specified and arbitrarily assigned RTs and survival. RESULTS: Five thousand, four hundred twenty-four transports were reviewed. Of these, 71 patients did not survive (1.31%; 95% CI = 1.04% to 1.67%). No significant difference in median RTs between survivors (6.4 min) and nonsurvivors (6.8 min) was noted (p = 0.10). Further, there was no significant difference between observed and expected deaths (p = 0.14). However, mortality risk was 1.58% for patients whose RT exceeded 5 minutes, and 0.51% for those whose RT was under 5 minutes (p = 0.002). The mortality risk curve was generally flat over RT intervals exceeding 5 minutes. CONCLUSIONS: In this observational study, emergency calls where RTs were less than 5 minutes were associated with improved survival when compared with calls where RTs exceeded 5 minutes. While variables other than time may be associated with this improved survival, there is little evidence in these data to suggest that changing this system's response time specifications to times less than current, but greater than 5 minutes, would have any beneficial effect on survival.
The rapid development of Internet of things (IoT) technology makes it possible for connecting various smart objects together through the Internet and providing more data interoperability methods for application purpose. Recent research shows more potential applications of IoT in information intensive industrial sectors such as healthcare services. However, the diversity of the objects in IoT causes the heterogeneity problem of the data format in IoT platform. Meanwhile, the use of IoT technology in applications has spurred the increase of real-time data, which makes the information storage and accessing more difficult and challenging. In this research, first a semantic data model is proposed to store and interpret IoT data. Then a resource-based data accessing method (UDA-IoT) is designed to acquire and process IoT data ubiquitously to improve the accessibility to IoT data resources. Finally, we present an IoT-based system for emergency medical services to demonstrate how to collect, integrate, and interoperate IoT data flexibly in order to provide support to emergency medical services. The result shows that the resource-based IoT data accessing method is effective in a distributed heterogeneous data environment for supporting data accessing timely and ubiquitously in a cloud and mobile computing platform.
The evolution of the emergency medical services system in the United States accelerated rapidly between 1960 and 1973 as a result of a number of medical, historical, and social forces. Current emergency medical services researchers, policy advocates, and administrators must acknowledge these forces and their limitations and work to modify the system into one that provides uniformly high-quality acute care to all patients, improves the overall public health through injury control and disease prevention programs, participates as a full partner in disease surveillance, and is prepared to address new community needs of all types.
Abstract Introduction Physician-staffed helicopter emergency medical services (HEMS) are a well-established component of prehospital trauma care in Germany. Reduced rescue times and increased catchment area represent presumable specific advantages of HEMS. In contrast, the availability of HEMS is connected to a high financial burden and depends on the weather, day time and controlled visual flight rules. To date, clear evidence regarding the beneficial effects of HEMS in terms of improved clinical outcome has remained elusive. Methods Traumatized patients (Injury Severity Score; ISS ≥9) primarily treated by HEMS or ground emergency medical services (GEMS) between 2007 and 2009 were analyzed using the TraumaRegister DGU ® of the German Society for Trauma Surgery. Only patients treated in German level I and II trauma centers with complete data referring to the transportation mode were included. Complications during hospital treatment included sepsis and organ failure according to the criteria of the American College of Chest Physicians/Society of Critical Care Medicine (ACCP/SCCM) consensus conference committee and the Sequential Organ Failure Assessment (SOFA) score. Results A total of 13,220 patients with traumatic injuries were included in the present study. Of these, 62.3% ( n = 8,231) were transported by GEMS and 37.7% ( n = 4,989) by HEMS. Patients treated by HEMS were more seriously injured compared to GEMS (ISS 26.0 vs. 23.7, P < 0.001) with more severe chest and abdominal injuries. The extent of medical treatment on-scene, which involved intubation, chest and treatment with vasopressors, was more extensive in HEMS ( P < 0.001) resulting in prolonged on-scene time (39.5 vs. 28.9 minutes, P < 0.001). During their clinical course, HEMS patients more frequently developed multiple organ dysfunction syndrome (MODS) (HEMS: 33.4% vs. GEMS: 25.0%; P < 0.001) and sepsis (HEMS: 8.9% vs. GEMS: 6.6%, P < 0.001) resulting in an increased length of ICU treatment and in-hospital time ( P < 0.001). Multivariate logistic regression analysis found that after adjustment by 11 other variables the odds ratio for mortality in HEMS was 0.75 (95% CI: 0.636 to 862). Afterwards, a subgroup analysis was performed on patients transported to level I trauma centers during daytime with the intent of investigating a possible correlation between the level of the treating trauma center and posttraumatic outcome. According to this analysis, the Standardized Mortality Ratio, SMR, was significantly decreased following the Trauma Score and the Injury Severity Score (TRISS) method (HEMS: 0.647 vs. GEMS: 0.815; P = 0.002) as well as the Revised Injury Severity Classification (RISC) score (HEMS: 0.772 vs. GEMS: 0.864; P = 0.045) in the HEMS group. Conclusions Although HEMS patients were more seriously injured and had a significantly higher incidence of MODS and sepsis, these patients demonstrated a survival benefit compared to GEMS.
OBJECTIVE: To evaluate the impact of adding first-responder defibrillation by fire-fighters to an existing advanced life-support emergency medical services system. DESIGN: Nonrandomized, controlled clinical trial with periodic crossover. SETTING: Memphis, Tenn, a city of 610,337 people, which is served by a fire department-based emergency medical services system. All city ambulances provide advanced life support. PATIENTS: Adult victims of out-of-hospital cardiac arrest due to heart disease. INTERVENTION: Twenty of 40 participating engine companies were equipped with an automated external defibrillator and ordered to apply it immediately in all cases of cardiac arrest. The other 20 companies were ordered to start cardiopulmonary resuscitation (CPR) immediately and wait for paramedics to arrive. Every 75 days, group roles were reversed. Care otherwise proceeded according to 1986 American Heart Association guidelines. MAIN OUTCOME MEASURES: Return of spontaneous circulation in the field, survival to hospital admission, survival to hospital discharge, and neurological status at discharge. RESULTS: During the 39-month study interval, 879 patients were treated by a project engine company. Four hundred thirty-one (49%) of these were found in ventricular fibrillation. Bystander CPR was started in only 12% of cases. Overall, firefighters reached the scene a mean of 2.5 minutes faster than simultaneously dispatched paramedics. Although our automated external defibrillators proved to be reliable and efficacious for terminating ventricular fibrillation and pulseless ventricular tachycardia, patients treated by an automated external defibrillator-equipped engine company were no more likely than CPR-treated controls to be resuscitated (32% vs 34%, respectively), to survive to hospital admission (31% vs 29%), or to survive to hospital discharge (14% vs 10%). Neurological outcomes were also similar in the two treatment groups. CONCLUSIONS: In a fast-response, urban emergency medical services system served by paramedics, the impact of adding first-responder defibrillation appears to be small. Early defibrillation alone cannot overcome low community rates of bystander CPR. Careful attention to every link in the "chain of survival" is needed to achieve optimal rates of survival after cardiac arrest.
OBJECTIVE: To determine the association between poor sleep quality, fatigue, and self-reported safety outcomes among emergency medical services (EMS) workers. METHODS: We used convenience sampling of EMS agencies and a cross-sectional survey design. We administered the 19-item Pittsburgh Sleep Quality Index (PSQI), 11-item Chalder Fatigue Questionnaire (CFQ), and 44-item EMS Safety Inventory (EMS-SI) to measure sleep quality, fatigue, and safety outcomes, respectively. We used a consensus process to develop the EMS-SI, which was designed to capture three composite measurements of EMS worker injury, medical errors and adverse events (AEs), and safety-compromising behaviors. We used hierarchical logistic regression to test the association between poor sleep quality, fatigue, and three composite measures of EMS worker safety outcomes. RESULTS: We received 547 surveys from 30 EMS agencies (a 35.6% mean agency response rate). The mean PSQI score exceeded the benchmark for poor sleep (6.9, 95% confidence interval [CI] 6.6, 7.2). More than half of the respondents were classified as fatigued (55%, 95% CI 50.7, 59.3). Eighteen percent of the respondents reported an injury (17.8%, 95% CI 13.5, 22.1), 41% reported a medical error or AE (41.1%, 95% CI 36.8, 45.4), and 90% reported a safety-compromising behavior (89.6%, 95% CI 87, 92). After controlling for confounding, we identified 1.9 greater odds of injury (95% CI 1.1, 3.3), 2.2 greater odds of medical error or AE (95% CI 1.4, 3.3), and 3.6 greater odds of safety-compromising behavior (95% CI 1.5, 8.3) among fatigued respondents versus nonfatigued respondents. CONCLUSIONS: In this sample of EMS workers, poor sleep quality and fatigue are common. We provide preliminary evidence of an association between sleep quality, fatigue, and safety outcomes.
OBJECTIVE: There is an absence of nationally representative data describing pediatric patients who use emergency medical services (EMS) and the factors associated with EMS use by children. This study characterizes pediatric emergency department (ED) visits for which the patient arrived by EMS and identifies factors associated with those visits using a nationally representative database. METHODS: A secondary analysis of the ED component of the 1997-2000 National Hospital Ambulatory Medical Care Survey was performed. The dependent variable was the mode of arrival to the ED (EMS vs. not EMS), and independent variables were grouped into four domains: demographic, clinical, system, and service characteristics. Bivariate analyses and multivariate logistic regression analyses were conducted. RESULTS: There were 110.9 million ED visits by children aged<19 years between 1997 and 2000. Pediatric patients constituted 27.3% of all ED visits during this time, and 7.9 million (7.1%) of these patients arrived via EMS. Pediatric patients represented 13% of all EMS transports. The annual EMS utilization rate by children was 26 per 1,000, compared with 66 per 1,000 in the adult population (p<0.001). Sixteen percent of children transported by EMS were admitted to the hospital. Sixty-two percent of pediatric patients arriving at the ED by EMS were transported as a result of injury or poisoning. Characteristics significantly associated with arrival by EMS in the final multivariate model included demographic (age, African American race, urban residence), clinical (need for greater immediacy of care, illnesses associated with certain diagnoses), and service (greater number of diagnostic services) variables. CONCLUSIONS: Pediatric patients transported by EMS are more likely to have injuries and poisoning, and have higher-acuity illness than those arriving at the ED by other means. The epidemiology of pediatric EMS use may have important operational, training, and public health implications and requires further study.
BACKGROUND: A large proportion of trauma patients in developing countries do not have access to formal Emergency Medical Services. We sought to assess the efficacy of a program that builds on the existing, although informal, system of prehospital transport in Ghana. In that country, the majority of injured persons are transported to the hospital by some type of commercial vehicle, such as a taxi or bus. METHODS: A total of 335 commercial drivers were trained using a 6-hour basic first aid course. The efficacy of this course was assessed by comparing the process of prehospital trauma care provided before versus after the course, as determined by self-report from the drivers. RESULTS: Follow-up interviews were conducted on 71 of the drivers a mean of 10.6 months after the course. Sixty-one percent indicated that they had provided first aid since taking the course. There was considerable improvement in the provision of the components of first aid in comparison to what was reported before the course: crash scene management (7% before vs. 35% after), airway management (2% vs. 35%), external bleeding control (4% vs. 42%), and splinting of injured extremities (1 vs. 16%). CONCLUSION: Even in the absence of formal Emergency Medical Services, improvements in the process of prehospital trauma care are possible by building on existing, although informal, patterns of prehospital transport.
Prehospital ultrasound has been deployed in certain areas of the USA and Europe. Physicians, emergency medical technicians, and flight nurses have utilized a variety of medical and trauma ultrasound assessments to impact patient care in the field. The goal of this review is to summarize the literature on emergency medical services (EMS) use of ultrasound to more clearly define the potential utility of this technology for prehospital providers.
CONTEXT: Out-of-hospital cardiac arrest is a major public health problem. OBJECTIVE: To investigate whether the survival of patients with out-of-hospital cardiac arrest would improve with minimally interrupted cardiac resuscitation (MICR), an alternate emergency medical services (EMS) protocol. DESIGN, SETTING, AND PATIENTS: A prospective study of survival-to-hospital discharge between January 1, 2005, and November 22, 2007. Patients with out-of-hospital cardiac arrests in 2 metropolitan cities in Arizona before and after MICR training of fire department emergency medical personnel were assessed. In a second analysis of protocol compliance, patients from the 2 metropolitan cities and 60 additional fire departments in Arizona who actually received MICR were compared with patients who did not receive MICR but received standard advanced life support. INTERVENTION: Instruction for EMS personnel in MICR, an approach that includes an initial series of 200 uninterrupted chest compressions, rhythm analysis with a single shock, 200 immediate postshock chest compressions before pulse check or rhythm reanalysis, early administration of epinephrine, and delayed endotracheal intubation. MAIN OUTCOME MEASURE: Survival-to-hospital discharge. RESULTS: Among the 886 patients in the 2 metropolitan cities, survival-to-hospital discharge increased from 1.8% (4/218) before MICR training to 5.4% (36/668) after MICR training (odds ratio [OR], 3.0; 95% confidence interval [CI], 1.1-8.9). In the subgroup of 174 patients with witnessed cardiac arrest and ventricular fibrillation, survival increased from 4.7% (2/43) before MICR training to 17.6% (23/131) after MICR training (OR, 8.6; 95% CI, 1.8-42.0). In the analysis of MICR protocol compliance involving 2460 patients with cardiac arrest, survival was significantly better among patients who received MICR than those who did not (9.1% [60/661] vs 3.8% [69/1799]; OR, 2.7; 95% CI, 1.9-4.1), as well as patients with witnessed ventricular fibrillation (28.4% [40/141] vs 11.9% [46/387]; OR, 3.4; 95% CI, 2.0-5.8). CONCLUSIONS: Survival-to-hospital discharge of patients with out-of-hospital cardiac arrest increased after implementation of MICR as an alternate EMS protocol. These results need to be confirmed in a randomized trial.
Edited by Institute of Medicine. The National Academies Press Washington, DC 2007 310 10: 0-309-10174-3 13: 978-0-309-10174-5 “Emergency care is a window on health care revealing both what is right and what is wrong with the care delivery system” The report by the committee on the future of emergency care in the US health system constructively looks at where emergency medical services (EMS) are in the USA, where they need to be and how to get there. The committee has removed the constraints of politics and borders in order to evaluate what is good and what needs to change with specific action points …
BACKGROUND: Preventable harm from medical care has been extensively documented in the inpatient setting. Emergency medical services (EMS) providers care for patients in dynamic and challenging environments; prehospital emergency care is a field that represents an area of high risk for errors and harm, but has received relatively little attention in the patient safety literature. OBJECTIVE: To identify the threats to patient safety unique to the EMS environment and interventions that mitigate those threats, we completed a systematic review of the literature. METHODS: We searched MEDLINE, EMBASE, and the Cumulative Index to Nursing and Allied Health Literature (CINAHL) for combinations of key EMS and patient safety terms composed by a pan-canadian expert panel using a year limit of 1999 to 2011. We excluded commentaries, opinions, letters, abstracts, and non-english publications. Two investigators performed an independent hierarchical screening of titles, abstracts, and full-text articles blinded to source. We used the kappa statistic to examine interrater agreement. Any differences were resolved by consensus. RESULTS: We retrieved 5,959 titles, and 88 publications met the inclusion criteria and were categorized into seven themes: adverse events and medication errors (22 articles), clinical judgment (13), communication (6), ground vehicle safety (9), aircraft safety (6), interfacility transport (16), and intubation (16). Two articles were randomized controlled trials; the remainder were systematic reviews, prospective observational studies, retrospective database/chart reviews, qualitative interviews, or surveys. The kappa statistics for titles, abstracts, and full-text articles were 0.65, 0.79, and 0.87, respectively, for the first search and 0.60, 0.74, and 0.85 for the second. CONCLUSIONS: We found a paucity of scientific literature exploring patient safety in EMS. Research is needed to improve our understanding of problem magnitude and threats to patient safety and to guide interventions.
BACKGROUND: Medication dosing errors occur in up to 17.8% of hospitalized children. There are limited data to describe pediatric medication errors by emergency medical services (EMS) paramedics. It has been shown that paramedics have infrequent encounters with pediatric patients. OBJECTIVE: To characterize medication dosing errors in children treated by EMS. METHODS: We studied patients aged ≤11 years who were treated by paramedics from eight Michigan EMS agencies from January 2004 through March 2006. We defined a medication dosing error as ≥20% deviation from the weight-appropriate dose, as determined by the patient's reported weight in the prehospital medical record or by use of the Broselow-Luten tape (BLT). We studied errors in administering six EMS medications commonly given to children: albuterol, atropine, dextrose, diphenhydramine, epinephrine, and naloxone. RESULTS: There were 5,547 children aged ≤11 years who were treated during the study period, of whom 230 (4.1%) received drugs and had a documented weight. These patients received a total of 360 medication administrations. Multiple drug administrations occurred in 73 cases. Medication dosing errors occurred in 125 of the 360 drug administrations (34.7%; 95% confidence interval [CI] 30.0, 39.8). Relative drug dosage errors (with 95% CI) were as follows: albuterol 23.3% (18.4, 29.1), atropine 48.8% (34.3, 63.5), diphenhydramine 53.8% (29.1, 76.8), and epinephrine 60.9% (49.9, 73.9). The mean error (± standard deviation) for intravenous/intraosseous 1:1000 epinephrine overdoses was 808% ± 428%. The mean error (± standard deviation) for intravenous/intraosseous 1:1000 epinephrine underdoses was 35.5% ± 27.4%. CONCLUSIONS: Medications delivered in the prehospital care of children were frequently administered outside of the proper dose range when compared with patient weights recorded in the prehospital medical record. EMS systems should develop strategies to reduce pediatric medication dosing errors.
INTRODUCTION: Recent research efforts in emergency medical services (EMS) has identified variability in the ability of EMS personnel to recognize their level of stress-related impairment. Developing a better understanding of how workplace stress may affect EMS personnel is a key step in the process of increasing awareness of the impact of work-related stress and stress-related impairment. OBJECTIVE: This paper demonstrates that for those in EMS, exposure to several types of workplace stressors is linked to stress reactions. Stress reactions such as posttraumatic stress symptomatology (PTSS) have the potential to negatively influence the health of EMS providers. This research demonstrates that two different types of work-related stress and alcohol use influence the development of PTSS. METHODS: A probability sample of nationally registered emergency medical technician (EMT)-Basics and EMT-Paramedics (n = 1,633) completed an Internet-based survey. Respondents reported their levels of operational and organizational types of chronic stress, critical incident stress, alcohol use, and PTSS. RESULTS: Ordinary least squares regression illustrated that when demographic factors were controlled, organizational and operational forms of chronic stress, critical incident stress, and alcohol use were all significant predictors of PTSS (p < 0.01). Inclusion of an interaction effect between operational stress and critical incident stress (p < 0.01) as well as between operational stress and alcohol use (p < 0.01) created a robust final model with an R(2) of 0.343. CONCLUSION: These findings indicate that exposure to both chronic and critical incident stressors increases the risk of EMS providers' developing a posttraumatic stress reaction. Higher levels of chronic stress, critical incident stress, and alcohol use significantly related to an increased level of PTSS. Further, for those reporting high levels of alcohol use or critical incident stress, interactions with high levels of chronic operational stress were associated with higher rates of PTSS. For those interested in the impact of work-related stress in EMS, these findings indicate that attention must be paid to levels of stress associated with both critical incident exposure as well as the chronic stress providers experience on a day-to-day basis.
BACKGROUND AND PURPOSE: With the advent of time-dependent thrombolytic therapy for ischemic stroke, it has become increasingly important for stroke patients to arrive at the hospital quickly. This study investigates the association between the use of emergency medical services (EMS) and delay time among individuals with stroke symptoms and examines the predictors of EMS use. METHODS: The Second Delay in Accessing Stroke Healthcare Study (DASH II) was a prospective study of 617 individuals arriving at emergency departments in Denver, Colo, Chapel Hill, NC, and Greenville, SC, with stroke symptoms. RESULTS: EMS use was associated with decreased prehospital and in-hospital delay. Those who used EMS had a median prehospital delay time of 2.85 hours compared with 4.03 hours for those who did not use EMS (P:=0.002). Older individuals were more likely to use EMS (odds ratio [OR] 1.21 for each 5-year increase, 95% CI 1.14 to 1.29), as were individuals who expressed a high sense of urgency about their symptoms (OR 1.69, 95% CI 1.09 to 2.62). Knowledge of stroke symptoms was not associated with increased EMS use (OR 0.63, 95% CI 0.40 to 0.98). Patients were more likely to use EMS if someone other than the patient first identified that there was a problem (OR 2.35, 95% CI 1.61 to 3.44). CONCLUSIONS: Interventions aimed at increasing EMS use among stroke patients need to stress the urgency of stroke symptoms and the importance of calling 911 and need to be broad-based, encompassing not only those at high risk for stroke but also their friends and family.