Factors associated with destination of pediatric EMS transports

ObjectivePediatric patients comprise 13% of emergency medical services (EMS) transports, and most are transported to general emergency departments (ED). EMS transport destination policies may guide when to transport patients to a children's hospital, especially for medical complaints. Factors that influence EMS providers ‘decisions about where to transport children are unknown.Our objective was to evaluate the factors associated with pediatric EMS transports to children's hospitals for medical complaints.MethodsWe performed a cross-sectional study of a large, urban EMS system over a 12-month period for all transports of patients 0–17 years old. We electronically queried the EMS database for demographic data, medical presentation and management, comorbidities, and documented reasons for choosing destination. Distances to the destination hospital and nearest children's and community hospital (if not the transport destination) were calculated. Univariate and multiple logistic regression analyses were conducted to determine the association between independent variables and the transport destination.ResultsWe identified 10,065 patients, of which 6982 (69%) were for medical complaints. Of these medical complaints, 3518 (50.4%) were transported to a children's hospital ED. Factors associated with transport to a children's hospital include ALS transport, greater transport distance, protocol determination, developmental delay, or altered consciousness. Factors associated with transport to general EDs were older age, unknown insurance status, lower income, greater distance to children's or community hospital, destination determined by closest facility or diversion, abnormal respiratory rate or blood glucose, psychiatric primary impression, or communication barriers present.ConclusionsWe found that younger patient age, EMS protocol requirements, and paramedic scene response may influence pediatric patient transport to both children's and community hospitals. Socioeconomic factors, ED proximity, diversion status, respiratory rate, chief complaints, and communication barriers may also be contributing factors. Further studies are needed to determine the generalizability of these findings to other EMS systems.     

Preferences for EMS Transport andPediatric Emergency Department Care

Objectives. To characterize the reasons pediatric emergency department (PED), patients access emergency medical services (EMS) for transport to the pediatric ED. To describe the acceptability of other modes of transport andalternative sites of care. Methods. We included a convenience sample of the responsible adults accompanying pediatric patients who arrived via EMS to the PED of an academic medical center. We administered a survey to evaluate why they chose EMS andtheir feelings about alternative modes of transport (e.g., medical van, taxi) or alternative sites of care (e.g., urgent care center, primary care physician's office, or getting an appointment within 24 hours). Results. One hundred thirthy-eight surveys were completed. Pediatric patients averaged eight years of age. Trauma (44%) andseizures (17%) were the chief complaints. The primary reasons for EMS use were perceived medical necessity (54%) andsecurity of transport by EMS (17%). Only transport by EMS was found to be acceptable. The responsible adults expressed acceptance of the PED (median = 7, 1 = not acceptable, 7 = very acceptable) as a destination, more than their child's primary care doctor's (median = 4), urgent care centers (median = 3), or no transport anda physician appointment within 24 hours (median = 1). Conclusions. Adults access the EMS system for children because of concerns regarding the acuity of illness andfor the security of EMS transport. They were generally uninterested in transport by any mode other than EMS. However, they would accept transport to alternative sites for immediate care.     

Emergency medical services: Brazil

Emergency medical services in Brazil have been created to offer first aid, primary medical treatment, basic life support, stabilization and rapid transfer to the closest appropriate hospital and advanced life support. Pre-hospital emergency care in Brazil is divided into permanent and mobile services. Permanent care is provided by the pre-hospital network (basic health units, family health program, specialized clinics, diagnosis and therapy services, non-hospital emergency care units). The mobile medical services include: mobile emergency care service, fire department and private services. Emergency hospital care units (emergency departments) are classified into general and reference units. Details of these services are described.     

L ACERATIONS AND A CUTE W OUNDS,AN E VIDENCE -B ASED G UIDE

Abstract

Introduction. Few systems worldwide have achieved the benchmark time of less than 90 minutes from emergency medical services (EMS) contact to balloon inflation (E2B) for patients sustaining ST-segment elevation myocardial infarction (STEMI). We describe a successful EMS systems approach using a combination of paramedic and 12-lead electrocardiogram (ECG) software interpretation to activate a STEMI bypass protocol. Objectives. To determine the proportion of patients who met the benchmark of E2B in less than 90 minutes after institution of a regional paramedic activated STEMI bypass to primary PCI protocol. Methods. We conducted a before-and-after observational cohort study over a 24-month period ending December 31, 2009. Included were all patients diagnosed with STEMI by paramedics trained in ECG acquisition and interpretation and transported by EMS. In the “before” phase of the study, paramedics gave emergency departments (EDs) advance notification of the arrival of STEMI patients and took the patients to the ED of the PCI center. In the “after” phase of the study, paramedics activated a STEMI bypass protocol in which STEMI patients were transported directly to the PCI suite, bypassing the local hospital EDs. Transmission of ECGs did not occur in either phase of the study. Results. We compared the times for 95 STEMI patients in the before phase with the times for 80 STEMI patients in the after phase. The proportion for whom E2B was less than 90 minutes increased from 28.4% before to 91.3% after (p < 0.001). Median E2B time decreased from 107 minutes (interquartile range [IQR] = 30) before to 70 minutes (IQR = 24) after. Median D2B time decreased from 83 minutes (IQR = 34) before to 35 minutes (IQR = 19) after. Median E2D time increased from 21 minutes (IQR = 8) before to 32 minutes (IQR = 17) after. Median differences between phases were significant at p < 0.001. The rate of false-positive PCI laboratory activation during the after phase of the study was 12.4%. Conclusions. The proportion of patients with E2B times less than 90 minutes significantly improved through the implementation of a paramedic-activated STEMI bypass protocol. Further study is required to determine whether these benefits are reproducible in other EMS systems.     

Triage ability of emergency medical services providers and patient disposition: a prospective study

STUDY OBJECTIVE: To determine the ability of emergency medical services (EMS) providers to subjectively triage patients with respect to hospital admission and to determine patient characteristics associated with increased likelihood of admission. METHODS: A prospective, cross-sectional study of a consecutive sample of patients arriving by ambulance during the month of February 1997 at an urban, university hospital, Emergency Department. Emergency medical services providers completed a questionnaire asking them to predict admission to the hospital and requested patient demographic information. Predictions were compared to actual patient disposition. RESULTS: A total of 887 patients were included in the study, and 315 were admitted to the hospital (36%). With respect to admission, EMS providers had an accuracy rate of 79%, with a sensitivity of 72% and specificity of 83% (kappa = 0.56). Blunt traumatic injury and altered mental status were the most common medical reasons for admission. Variables significantly associated with high admission rates were patients with age > 50 years, chest pain or cardiac complaints, shortness of breath or respiratory complaints, Medicare insurance, and Hispanic ethnicity. The EMS providers most accurately predicted admission for patients presenting with labor (kappa = 1.0), shortness of breath/respiratory complaints (kappa = 0.84), and chest pain (kappa = 0.77). CONCLUSION: Emergency medical services providers can predict final patient disposition with reasonable accuracy, especially for patients presenting with labor, shortness of breath, or chest pain. Certain patient characteristics are associated with a higher rate of actual admission.     

Emergency Medical Services Utilization Is Associated With Community Deprivation in Children

Background: Pediatric emergency medical services (EMS) utilization is costly and resource intensive; significant variation exists across large-scale geographies. Less is known about variation at smaller geographic levels where factors including lack of transportation, low health literacy, and decreased access to medical homes may be more relevant. Our objective was to determine whether pediatric EMS utilization varied across Hamilton County, Ohio, census tracts and whether such utilization was associated with socioeconomic deprivation. Methods: This was a retrospective analysis of children living in Hamilton County, Ohio, transported by EMS to the Cincinnati Children’s emergency department between July 1, 2014, and July 31, 2016. Participants’ addresses were assigned to census tracts and an EMS utilization rate and deprivation index were calculated for each. Pearson’s correlation coefficients evaluated relationships between tract-level EMS utilization and deprivation. Tract-level deprivation was used as a predictor in patient-level evaluations of acuity. Results: During the study period, there were 4,877 pediatric EMS transports from 219 of the 222 county census tracts. The county EMS utilization rate during the study period was 2.4 transports per 100 children (range 0.2–11). EMS utilization rates were positively correlated with increasing deprivation (r?=?0.72, 95% confidence interval [CI], 0.65–0.77). Deprivation was associated with lower illness severity at triage, fewer transports resulting in resuscitation suite use, and fewer transports resulting in hospitalizations (all p?<?0.05). Conclusions: EMS utilization varied substantially across census tracts in Hamilton County, Ohio. A deeper understanding into why certain socioeconomically deprived areas contribute to disproportionately high rates of EMS utilization could support development of targeted interventions to improve use.     

Hot Off the Press: Prehospital Advanced Cardiac Life Support for Out‐of‐hospital Cardiac Arrest

This retrospective cohort study examined the rate of survival to hospital discharge among adult patients with out‐of‐hospital cardiac arrest, comparing patients who received care only from basic cardiac life support (BCLS)‐trained emergency medical service (EMS) crews to patients who had an advanced cardiac life support (ACLS)‐trained EMS crew on scene at some point during the resuscitation. There was no difference in the primary outcome of rate of survival to hospital discharge (10.9% with ACLS care and 10.6% with BCLS care, p = 0.67).     

The Epidemiology of Emergency Medical Services Use by Children: An Analysis of the National Hospital Ambulatory Medical Care Survey

Objective. There is an absence of nationally representative data describing pediatric patients who use emergency medical services (EMS) andthe factors associated with EMS use by children. This study characterizes pediatric emergency department (ED) visits for which the patient arrived by EMS andidentifies 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), andindependent variables were grouped into four domains: demographic, clinical, system, andservice characteristics. Bivariate analyses andmultivariate logistic regression analyses were conducted. Results. There were 110.9 million ED visits by children aged <19 years between 1997 and2000. Pediatric patients constituted 27.3% of all ED visits during this time, and7.9 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), andservice (greater number of diagnostic services) variables. Conclusions. Pediatric patients transported by EMS are more likely to have injuries andpoisoning, andhave higher-acuity illness than those arriving at the ED by other means. The epidemiology of pediatric EMS use may have important operational, training, andpublic health implications andrequires further study.     

Naloxone Use in a Tiered-Response Emergency Medical Services System

Objective. To examine the delivery andeffect of naloxone for opioid overdose in a tiered-response emergency medical services (EMS) system andto ascertain how much time could be saved if the first arriving emergency medical technicians (EMTs) could have administered intranasal naloxone. Methods. This was case series of all EMS-treated overdose patients who received naloxone by paramedics in a two-tiered EMS system during 2004. The system dispatches basic life support–trained fire fighter–EMTs and/or advanced life support–trained paramedics depending on the severity of cases. Main outcomes were geographic distribution of naloxone-treated overdose, severity of cases, response to naloxone, andtime interval between arrival of EMTs andarrival of paramedics at the scene. Results. There were 164 patients who received naloxone for suspected overdose. There were 75 patients (46%) initially unresponsive to painful stimulus. Respiratory rate was <10 breaths/min in 79 (48%). Death occurred in 36 (22%) at the scene or during transport. A full or partial response to naloxone occurred in 119 (73%). Recognized adverse reactions were limited to agitation/combativeness in 25 (15%) andemesis in six (4%). Average EMT arrival time was 5.9 minutes. Average paramedic arrival time was 11.6 minutes in most cases and16.1 minutes in 46 cases (28%) in which paramedics were requested by EMTs at the scene. Conclusions. There is potential for significantly earlier delivery of naloxone to patients in opioid overdose if EMTs could deliver intranasal naloxone. A pilot study training andauthorizing EMTs to administer intranasal naloxone in suspected opioid overdose is warranted.     

Epidemiology of pediatric EMS practice: a multistate analysis

OBJECTIVE: To describe the epidemiology of pediatric emergency medical services (EMS) practice in a large patient population from several geographic areas. DESIGN: Retrospective computer analysis of EMS databases from four states using a common data set and analysis system. SETTING: Pennsylvania, Tennessee, Mississippi, and Nevada (except Clark County), 1990 through 1992. METHODS: All patient-care reports of patients 14 years old and younger were extracted from the EMS databases and analyzed for the following factors: age, gender, date, elapsed prehospital times, incident type, mechanism of injury, call disposition, illness or injuries encountered, severity of illness/injury (by abnormal vital signs), and basic life support (BLS) and advanced life support (ALS) treatment delivered. RESULTS: A total of 1,512,907 patient care reports were reviewed. Those of 61,132 children were extracted for analysis. These children comprised about 4% of prehospital responses. Male subjects predominated (56%), and children aged 7 through 14 years represented 46% of cases. Most calls occurred in the evening and daylight hours. Children were transported by ambulance in 89% of cases, and care was refused in 7.7%. Mean response time was 9 +/- 16 minutes, mean scene time 12 +/- 14 minutes, and mean transport time 14 +/- 20 minutes. Traumatic incidents predominated at 42%, with motor vehicle accidents and falls the most common mechanisms. Blunt injuries accounted for 94% of trauma, whereas respiratory problems, seizures, and poisoning/overdose were the most common medical problems. Vital signs were obtained in 56% of cases. Abnormal vital signs were noted in 21% of these, and the presumptive causes were similar in distribution to those of the general population, with the addition of cardiac arrest. The most commonly used treatments were spinal immobilization, oxygen administration, intravenous access and several ALS medications. An ALS capability was available in more than half the runs, but ALS treatment was delivered in only 14% of those cases. Outcome data were not available. CONCLUSION: This multistate analysis of pediatric EMS epidemiology confirms findings reported in smaller regional studies, with several exceptions. Excessive scene times were not noted. Few children had serious disorders as evidenced by abnormal vital signs. An ALS treatment, when available, was used infrequently. These findings have implications for EMS planners and educators.     

Contemporary Prehospital Emergency Medical Services Response Times for Suspected Stroke in the United States

Background and Purpose: There are no contemporary national-level data on Emergency Medical Services (EMS) response times for suspected stroke in the United States (US). Because effective stroke treatment is time-dependent, we characterized response times for suspected stroke, and examined whether they met guideline recommendations. Methods: Using the National EMS Information System dataset, we included 911 calls for patients ≥ 18 years with an EMS provider impression of stroke. We examined variation in the total EMS response time by dispatch notification of stroke, age, sex, race, region, time of day, day of the week, as well as the proportion of EMS responses that met guideline recommended response times. Total EMS response time included call center dispatch time (receipt of call by dispatch to EMS being notified), EMS dispatch time (dispatch informing EMS to EMS starts moving), time to scene (EMS starts moving to EMS arrival on scene), time on scene (EMS arrival on scene to EMS leaving scene), and transport time (EMS leaving scene to reaching treatment facility). Results: We identified 184,179 events with primary impressions of stroke (mean age 70.4 ± 16.4 years, 55% male). Median total EMS response time was 36 (IQR 28.7–48.0) minutes. Longer response times were observed for patients aged 65–74 years, of white race, females, and from non-urban areas. Dispatch identification of stroke versus “other” was associated with marginally faster response times (36.0 versus 36.7 minutes, p < 0.01). When compared to recommended guidelines, 78% of EMS responses met dispatch delay of <1 minute, 72% met time to scene of <8 minutes, and 46% met on-scene time of <15 minutes. Conclusions: In the United States, time from receipt of 9-1-1 calls to treatment center arrival takes a median of 36 minutes for stroke patients, an improvement upon previously published times. The fact that 22%–46% of EMS responses did not meet stroke guidelines highlights an opportunity for improvement. Future studies should examine EMS diagnostic accuracy nationally or regionally using outcomes based approaches, as accurate recognition of prehospital strokes is vital in order to improve response times, adhere to guidelines, and ultimately provide timely and effective stroke treatment.     

A Randomized Controlled Trial to Assess Decay in Acquired Knowledge among Paramedics Completing a Pediatric Resuscitation Course

BACKGROUND: Critical pediatric illness or injury occurs infrequently in out-of-hospital settings, making it difficult for paramedics to maintain physical assessment, treatment, and procedure skills. OBJECTIVES: To document the ability of paramedics to retain clinical knowledge over a one-year interval after completing a pediatric resuscitation course and to determine whether clinical experience or retesting improves retention. METHODS: This was a randomized controlled study assessing retention of knowledge in pediatric resuscitation soon after, six months after, and 12 months following completion of a pediatric advanced life support course. Forty-three paramedics participated in pre- and post-pediatric resuscitation course testing and were randomly assigned to one of four groups. Group 1 received a knowledge examination (KE) and mock resuscitation scenarios (MR) at six months. Group 2 received only the KE at six months. Group 3 received the MR only at six months. Group 4 received no intermediate testing. All groups were reassessed at 12 months. RESULTS: Pediatric clinical knowledge (as measured by KE) rose sharply immediately after the course but returned to baseline levels within six months. There was no difference between the groups in knowledge scores at 12 months, despite the interventions at six months. CONCLUSIONS: Although intensive out-of-hospital pediatric education enhances knowledge, that knowledge rapidly decays. Emergency medical services programs need to find novel ways to increase retention and ensure paramedic readiness.     

Termination of resuscitation: a guide to interpreting the literature

INTRODUCTION: Prehospital termination of resuscitation rules are used to decide on one of two actions: to continue resuscitation and transport to hospital or to terminate resuscitation. The literature is confusing as some rules are derived with survival as the outcome of interest (predicting when to transport and reporting sensitivity and negative predictive value) and other rules use death (predicting when to terminate resuscitation and reporting specificity and positive predictive value). Very few publish the EMS transport rate when the rule is applied; the outcome of interest to EMS services. METHODS: We propose to review the test characteristics and transport rates of the decision rules published between 1966 and 2007. RESULTS: We identified 9 analyses of 6 termination of resuscitation rules; 1 inhospital, and 5 prehospital (2 advance and 3 basic life support providers). The inhospital and the basic life support rules were derived using survival whereas the advance life support rules were derived using death. The transport rate was published in two studies. When all the rules were reanalysed for death the specificity varied from 90.2% to 100%, the positive predictive value from 99.5% to 100% and the transport rate varied from 37% to 91%. CONCLUSION: We suggest that the diagnostic test characteristics of termination of resuscitation rules should be reported with death as the primary outcome which identifies for the paramedics futile resuscitations that should be terminated in the field. We also emphasize the need to report transport rates to provide the EMS services with an implementation benchmark.     

Paramedics Accurately Apply the Pediatric Assessment Triangle to Drive Management

Abstract

Objective. To provide an evaluation of the Pediatric Assessment Triangle (PAT) as an assessment tool for use by paramedic providers in the prehospital care of pediatric patients. Methods. Paramedics from Los Angeles Fire Department (LAFD) received training in the Pediatric Education for Prehospital Professionals (PEPP) course, PAT study procedures, and completed training in applying the PAT to assess children 0–14 years of age. A convenience sample of LAFD paramedic assessments of the pediatric patients transported to 29 participating institutions, over an 18-month period ending July 2010, were eligible for inclusion. Patients who were not transported were excluded from the study, as were the assessments of children with special health-care needs (CSHCN). PAT Study Forms, emergency medical services (EMS) report forms, and emergency department (ED) and hospital charts were entered into a secure database. Two study investigators, blinded to paramedic PAT assessment, reviewed hospital charts and determined the category of illness or injury. Results. A total of 1,552 PAT Study Forms were collected. Overall, 1,168 of the patient (75%) assessments met inclusion criteria, were transported, and had all three data points (PAT Study Form, paramedic EMS report form, and ED/hospital chart) available for analysis. When paramedics used the PAT to identify abnormalities in the three arms of the triangle (PAT Paramedic Pattern) and applied that pattern to form a general impression (PAT Paramedic Impression), the agreement resulted in a κ coefficient of 0.93 [95% CI: 0.91–0.95]. The PAT paramedic impression was congruent with field management, as the majority of patients received consistent interventions with local EMS protocols. The PAT Paramedic Impression for instability demonstrated a sensitivity of 77.4% [95% CI: 72.6–81.5%], a specificity of 90.0% [95% CI: 87.1–91.5%] with a positive likelihood ratio (LR+) of 7.7 [95% CI: 5.9–9.1] and a negative likelihood ratio (LR-) of 0.3 [95% CI: 0.2–0.3]. Conclusion. The PAT is a rapid assessment tool that can be readily and reliably used by paramedics in the prehospital setting. The PAT should be used in conjunction with other assessments but can safely drive initial field management.     

Retrospective Evaluation of Risk Factors for Pediatric Secondary Transport

Objective: Emergency medical services (EMS) typically transports patients to the nearest emergency department (ED). After initial presentation, children who require specialized care must undergo secondary transport, exposing them to additional risks and delaying definitive treatment. EMS direct transport protocols exist for major trauma and certain adult medical conditions, however the same cannot be said for pediatric medical conditions or injuries that do not meet trauma center criteria (‘minor trauma’). To explore the utility of such future protocols, we sought to first describe the pediatric secondary transport population and examine prehospital risk factors for secondary transport. Methods: Pediatric secondary transport patients aged 0–18 years were identified. Patients meeting state EMS trauma protocol criteria or who were clinically unstable were excluded. Data were abstracted by chart review of EMS, community hospital ED, and specialty hospital records. Patients were compared to control patients with similar conditions who did not require secondary transport. Results: This study identified 211 medical or minor trauma pediatric secondary transport patients between 2013 and 2014. The three most prevalent conditions were seizure (n = 52), isolated orthopedic injury (n = 49), and asthma/respiratory distress (n = 27). Increased odds of secondary transport for seizure patients were associated with administration of supplemental oxygen, glucose measurement, and online medical direction; for isolated orthopedic injuries, online medical direction; and for asthma/respiratory distress, administration of supplemental oxygen, and online medical direction. Decreased odds of secondary transport for seizure patients were associated with a higher GCS; for isolated orthopedic injuries, increased age and oxygen saturation; and for asthma/respiratory distress, administration of albuterol only. Conclusions: Children with seizures, isolated orthopedic injuries, and asthma/respiratory distress comprised the majority of the medical or minor trauma pediatric secondary transport population. Each of those conditions had specific risk factors for secondary transport. This study's results provide information to guide future prospective studies and the development of direct transport protocols for those populations.     

Emergency Medical Services Education in Emergency Medicine Residency Programs: A National Survey

Objectives: Emergency medical services (EMS) was recently approved as a subspecialty by the American Board of Medical Specialties, highlighting the core content of knowledge that encompasses prehospital emergency patient care. This study aimed to describe the current state of EMS education at emergency medicine (EM) residency programs in the United States. Methods: The authors distributed an online survey containing multiple‐choice and free‐response questions pertaining to resident EMS education to the directors of EM residency programs in the United States between July 21 and September 10, 2010. Results: Of 154 programs, 117 (75%) responded to the survey, and 108 (70%) completed the survey by answering all required questions. Of completed surveys, 82 programs (76%) reported the cumulative time devoted to EMS didactic education during the course of residency training, a median of 20 hours (range = 3 to 300 hours; interquartile range [IQR] = 12 to 36 hours). There is a designated EMS rotation in 89% of programs, with a median duration of 3 weeks (range = 1 to 9 weeks; IQR = 2 to 4 weeks). Most programs involve residents on EMS rotations strictly as in‐field observers (63%), some as in‐field providers (20%), and the rest with some combination of the two roles. Ground ride‐along is required in 94% of programs, while air ride‐along is mandatory in 4% and optional in 81% of programs. Direct medical oversight (DMO) certification is required in 41% of residency programs, but not available in 26% of program jurisdictions. Residents in 92% of programs provide DMO. In those programs, most residents (77%) provide DMO primarily while working in the emergency department (ED), 13% during dedicated EMS or medical oversight shifts, and 4% during a combination of these shifts. Disaster‐preparedness was most frequently listed as the component programs would like to add to their EMS curricula. Conclusions: There is a wide range in the didactic, online, and in‐field EMS educational experiences provided as part of EM training. Most residents participate in ground ride‐along activities, provide DMO, and have a dedicated EMS rotation. Disaster‐preparedness is the most common desired addition to existing EMS rotations. ACADEMIC EMERGENCY MEDICINE 2012; 19:1–6 © 2012 by the Society for Academic Emergency Medicine