A simulation and optimisation package for emergency medical services

263 Does Failure to Activate Stroke Resources from the Out-of-Hospital Setting Delay Stroke Recognition by Emergency Department Staff?

93 Patients With Sickle Cell Disease Pain Crises Are Often Undertreated in the Out-of-Hospital Setting: A Multi-Agency Cohort Study

Emergency Medical Services (EMS) providers, capable of rapidly delivering life-prolonging interventions, are often first to respond to acute health concerns for older adults in the United States. Prior work has shown a preference among many people with dementia for comfort-focused care near end-of-life. People with dementia frequently use EMS; however, little is known about communication surrounding treatment preferences during EMS response for this group. We conducted a qualitative content analysis of EMS incident reports for older adults with dementia transported to two urban academic hospitals (2011-2021). We identified eligible patients in the hospital electronic health record applying the following criteria: age ≥ 65, diagnosis code indicating dementia, assessment by EMS, hospitalization between 2011 and 2021, and National Early Warning Score ≥ 7 indicating critical illness. We characterized the frequency and content of documented patient treatment preferences in EMS incident reports and identified barriers and facilitators to communication about treatment preferences or goal-concordant care. We reviewed incident reports for 171 patients with a median age of 82 (IQR 12) years. About half (51%) of the patients were residing in nursing homes. A minority (23%) of the patients were described as able to communicate needs, and only 24% had a family member or friend present at the time of EMS assessment. Treatment preferences were mentioned in 27% of the reports. EMS providers documented barriers to communication or delivery of goal-concordant care in nursing home settings that included difficulty obtaining information from professional caregivers, receiving secondhand information, and variable role expectations. Goal-concordant care was facilitated in these settings when EMS providers spoke directly with patients' family members by telephone. EMS providers treating critically ill older adults with dementia face challenges that may hinder their ability to elicit treatment preferences, in particular when responding to calls from professional caregivers. Direct communication with surrogate decision-makers may facilitate goal-concordant care.

Background. Occupational injuries are an important source of morbidity for emergency medical services (EMS) providers. Previous work has shown that employee perceptions of an organization's commitment to safety (i.e., safety climate) correlate with adherence to safe practices. Objective. To assess the association between perceived safety climate and compliance with safety procedures in an urban EMS system with >100,000 calls/year. Methods. EMS providers were issued a self-administered survey that included questions on demographics, years of experience, perceived safety climate, and adherence to safety procedures. Safety climate was assessed with a 20-item validated instrument. Adherence to safety procedures was assessed with a nine-item list of safety behaviors. Strict adherence to safety procedures was defined as endorsing “agree” or “strongly agree” on 80% of items. The effect of safety climate on compliance with safe practices was estimated using multiple logistic regression. Results. One hundred ninety-six of 221 providers (89%) completed surveys; 74% were male; the median age was 36–40 years; and the median amount of experience was 8 years. One hundred twenty-seven of 196 respondents (65%) reported strict adherence to safe work practice. Factor analysis confirmed the original six-factor grouping of questions; frequent safety-related feedback/training was significantly associated with safe practices (odds ratio [OR] = 2.14, 95% confidence interval [CI] = 1.01–4.51). Conclusion. EMS workers perceiving a high degree of perceived safety climate was associated with twofold greater odds of self-reported level of strict adherence to safe work practices. Frequent safety-related feedback/training was the one dimension of safety climate that had the strongest association with adherence to safe workplace behaviors.

Introduction: In Japan, emergency medical service (EMS) providers are prohibited from cardiopulmonary resuscitation (CPR) termination in the field and must transport all out-of-hospital cardiac arrest (OHCA) patients to a hospital, regardless of the return of spontaneous circulation (ROSC). We previously developed a termination of resuscitation (TOR) rule for emergency department physicians (ED-TOR) treating OHCA patients using data from the All-Japan Utstein Registry between 2005 and 2009, when CPR was performed according to the 2005 guidelines. The ED-TOR rule recommends CPR termination when patients in the emergency department meet all of the following criteria: initial unshockable rhythm, arrest unwitnessed by bystanders and no prehospital ROSC. Hypothesis: We aimed to validate the ED-TOR rule using more recent data, where CPR was performed according to the 2010 and 2015 guidelines, comparing the relevance of the ED-TOR rule with the universal basic life support TOR (BLS-TOR) rule, which consists of the following criteria: no prehospital ROSC, unwitnessed arrest by EMS providers and no shock received. Methods: We analysed 552,554 OHCA patients (age ≥ 18 years) treated by EMS providers. OHCA patients witnessed by EMS providers were excluded. Data were obtained from a prospectively recorded All-Japan Utstein Registry from 2013 to 2017. The study endpoints were specificity and a positive predictive value (PPV) for predicting 1-month mortality after OHCA with the ED-TOR and BLS-TOR rules. Results: The overall 1-month survival rate was 4.3% (23,733/552,554). The proportions of OHCA patients who fulfilled the ED-TOR and BLS-TOR criteria were 59.6% and 83.8%, respectively. The specificity and PPV of the ED-TOR and BLS-TOR rules for predicting 1-month mortality were 93.2% (95% confidence interval [CI], 92.8%-93.5%) and 99.5% (95% CI, 99.5%-99.5%) and 82.6% (95% CI, 82.1%-83.1%) and 99.1% (95% CI, 99.1%-99.1%), respectively. Conclusions: The ED-TOR rule was successfully validated using more recent data from a Japanese registry where CPR was performed according to the 2010 and 2015 guidelines. The ED-TOR rule was slightly superior to the BLS-TOR rule in Japanese EMS systems showing high specificity and PPV for predicting 1-month mortality.

Objectives. To investigate emergency medical services (EMS) providers' experience with weapons encountered while working, and evaluate the training they have received regarding searching for and confiscating weapons in the field. Methods. This was a descriptive, cross-sectional survey anonymously completed by a convenience sample of EMS providers in the metropolitan Boston and Los Angeles (LA) areas. Results. Of 2,672 surveys distributed, 2,224 (83%) were returned. Forty-two percent of the respondents (39% of Boston and 46% of LA) reported searching patients for weapons, and 62% (51% of Boston and 76% of LA) reported finding weapons. The LA respondents were more likely than the Boston respondents to have found a firearm. Twenty-seven percent of the respondents reported they had found more than five weapons in their careers. One thousand seven hundred seventy-two (80%) providers replied that they would report discovered weapons, most frequently to law enforcement personnel. Providers with higher EMS education and ones who received weapons-related training were more likely to search for, find, and report weapons. Four hundred fifty-one (20%) respondents reported receiving formal weapons-related training, 291 (13%) considered their initial EMS training on weapons-related topics to be adequate, and 292 (13%) considered their continuing education in these areas adequate. Conclusions. These data suggest that weapons encountered in the field are a widespread problem for EMS providers. Although many EMS providers search for and find weapons on their patients, most of them feel they have been inadequately trained in this area. Prospective studies are needed to document the actual incidence of weapon encounters in the prehospital setting. Multidisciplinary discussions are needed to address the above issues.

Objective: Describe prehospital Emergency Medical Services (EMS) providers' beliefs regarding spinal precautions for pediatric trauma transport. Methods: We randomly surveyed nationally certified EMS providers. We assessed providers' beliefs about specific precautions, and preferred precautions given a child's age (0–4 or 5–18 years) and presence of specific cervical spine injury (CSI) risk factors. Results: We received 5,400 responses (17%). Most were Paramedics (36%) or EMTs (22%) and worked at fire-based services (42%). A total of 47% endorsed responding to pediatric calls more than once per month. Consensus beliefs (>66% agreement) were that rigid cervical collars (68%) and long backboards with soft conforming surfaces (79%) maintain an injured pediatric spine in optimal position. Only 39% believed in the utility of the rigid long backboard to protect the pediatric spine. For most risk factors in both age categories, a rigid cervical collar with a long backboard with a soft conforming surface was the most common response (28–40% depending on age group and risk factor); however, there were no consensus beliefs. Provider-level experience, working as a patient care provider, less education, and parent status were associated with endorsing the rigid cervical collar. Factors associated with endorsing the rigid long backboard included provider level, working as a patient care provider, low pediatric call volume, and less education. Conclusions: EMS providers believe that rigid cervical collars and long backboards with soft conforming surfaces provide optimal spinal precautions. There were no consensus beliefs, however, for use of particular precautions based on age and risk factors.

Objective. To determine the association between pediatric restraint use during motor vehicle crashes and patient transports by emergency medical services (EMS) providers. Methods. Children under 16 years of age who were involved in motor vehicle crashes in Houston or Harris County, Texas, in 1997 were identified from Texas Department of Public Safety (DPS) crash data. DPS data were linked probabilistically to City of Houston Fire Department EMS data to identify whether the children were transported from the scene by EMS. Odds ratios were calculated to determine the association between restraint use and EMS transport. Logistic regression was used to control for age and injury severity in this relationship. Results. From the linked data for 1997, 1,696 children were involved in reported automobile or truck crashes to which EMS responded. Of the 1,580 children about whom information concerning restraint use was available, 1,309 (83%) were wearing some type of safety restraint and 1,342 (85%) were transported by EMS. Adjusting for injury severity, children wearing safety restraints during motor vehicle crashes were 60% (95% confidence interval 34−75%) less likely to be transported by EMS than those not wearing safety restraints during such crashes. Conclusions. The use of safety restraints during motor vehicle crashes is associated with a reduction in the number of children transported from the scene by EMS providers. This effect is independent of age and injury severity.

To understand the needs of Emergency Medical Service (EMS) providers caring for substance users in an urban setting. Qualitative interviews with EMS providers regarding perceptions of substance users and treatment programs. Baltimore City. Twenty-two Baltimore City Fire Department EMS providers. Semistructured in-depth interviews were conducted with 22 EMS providers. Topics included experiences caring for substance-using patients and attitudes about local harm reduction approaches. Providers were asked their views on receiving training to deliver a brief motivational intervention to encourage patients to enter drug treatment. Interviews were transcribed and analyzed using constant comparison. Participants were mostly Male (68.2 percent), White (66.6 percent), and had Advanced Life Skills training (90.9 percent). Mean experience was 8.7 years. Many providers described EMS misusers as mostly male and middle-aged, although there were variations in substance use patterns among all races and income levels. Most stated that repeated care provision to a small number of substance-users negatively impacted care quality. Provider demands included departmental policies and resource limitations. Many expressed willingness to deliver motivational messages to substance-using patients to consider drug treatment. Other stated that behavioral interventions were beyond their job duties and most reported having little-to-no knowledge of local treatment programs. EMS providers may be uniquely positioned to deliver substance use treatment messages to substance users. This could be a life- and cost-saving improvement to EMS in Baltimore City with incentivized training. More research is needed to inform opioid use preparedness in urban settings, which remain at the center of the opioid epidemic.

Emergency Medical Services (EMS) providers are trained to place endotracheal tubes (ETTs) in the prehospital setting when indicated. Endotracheal tube cuffs are traditionally inflated with 10cc of air to provide adequate seal against the tracheal lumen. There is literature suggesting that many ETTs are inflated well beyond the accepted safe pressures of 20-30cmH2O, leading to potential complications including ischemia, necrosis, scarring, and stenosis of the tracheal wall. Currently, EMS providers do not routinely check ETT cuff pressures. It was hypothesized that the average ETT cuff pressure of patients arriving at the study site who were intubated by EMS exceeds the safe pressure range of 20-30cmH2O. While ETT cuff inflation is necessary to close the respiratory system, thus preventing air leaks and aspiration, there is evidence to suggest that over-inflated ETT cuffs can cause long-term complications. The purpose of this study is to characterize the cuff pressures of ETTs placed by EMS providers. This project was a single center, prospective observational study. Endotracheal tube cuff pressures were measured and recorded for adult patients intubated by EMS providers prior to arrival at a large, urban, tertiary care center over a nine-month period. All data were collected by respiratory therapists utilizing a cuff pressure measurement device which had a detectable range of 0-100cmH2O and was designed as a syringe. Results including basic patient demographics, cuff pressure, tube size, and EMS service were recorded. In total, 45 measurements from six EMS services were included with ETT sizes ranging from 6.5-8.0mm. Mean patient age was 52.2 years (67.7% male). Mean cuff pressure was 81.8cmH2O with a range of 15 to 100 and a median of 100. The mode was 100cmH2O; 40 out of 45 (88.9%) cuff pressures were above 30cmH2O. Linear regression showed no correlation between age and ETT cuff pressure or between ETT size and cuff pressure. Two-tailed T tests did not show a significant difference in the mean cuff pressure between female versus male patients. An overwhelming majority of prehospital intubations are associated with elevated cuff pressures, and cuff pressure monitoring education is indicated to address this phenomenon.

IntroductionPediatric hospital care is becoming increasingly regionalized, with fewer facilities providing inpatient care for common conditions such as asthma. That trend has major implications for emergency medical services (EMS) medical care and operations because EMS historically transports patients to the closest facility. This study describes EMS transport patterns of pediatric asthma patients in greater depth, including an analysis of facility bypass rates and the association of bypass with demographics and clinical outcomes.MethodsThis was a retrospective study of pediatric asthma patients ages 2–18 years transported by Lee County, FL EMS between March 1, 2018 – December 31, 2019. A priori, we defined bypass as greater than five minutes extra transport time. We performed geospatial analysis and mapping of EMS pediatric asthma encounters. We used the Pediatric Destination Tree (PDTree) project’s tiered approach to characterize receiving hospital facility pediatric capability. We analyzed incidence and characteristics of bypass, and bypass and non-bypass patient characteristics including demographics, emergency department (ED) clinical outcomes, and socioeconomic disadvantage (SED).ResultsFrom the study period, there were a total of 262 encounters meeting inclusion criteria, 254 (96.9%) of which could be geocoded to EMS incident and destination locations. Most encounters (72.8%) bypassed at least one facility, and the average number of facilities bypassed per encounter was 1.52. For all 185 bypass encounters, there was a median additional travel time of 13.5 minutes (interquartile range 7.5 – 17.5). Using the PDTree’s classification of pediatric capability of destination facilities, 172 of the 185 bypasses (93%) went to a Level I facility. Bypass incidence varied significantly by age, but not by minority status, asthma severity, or by the area deprivation index of the patient’s home address. Overall, the highest concentrations of EMS incidents tended to occur in areas of greater SED. With regard to ED outcomes, ED length of stay did not vary between bypass and non-bypass patients (P = 0.54), and neither did hospitalization (P = 0.80).ConclusionWe found high rates of bypass for pediatric EMS encounters for asthma exacerbations, and that bypass frequency was significantly higher in younger age groups. With national trends pointing toward increasing pediatric healthcare regionalization, bypass has significant implications for EMS operations.

Our primary objective evaluated the perception of emergency medical service (EMS) providers' review of automated hospital outcome data. Secondarily, we assessed participation in outcome review as a means of microlearning to obtain continuing education (CE). From October-December 2023, three high-volume EMS systems participated in a three-part intervention with results evaluated using a mixed-methods approach. First, EMS providers (emergency medical technicians and paramedics) were invited, via their electronic health record (EHR), to complete a presurvey evaluating their perceptions of reviewing outcomes. Then, EMS providers were notified about the opportunity to earn CE via a microlearning intervention, offering Commission on Accreditation for Pre-Hospital Continuing Education (CAPCE)-approved CE hours for completion of outcome reviews and associated learning modules. Finally, EMS providers were invited to complete a post-survey mirroring the pre-survey. Qualitative analyses identified themes among open-ended responses. Quantitative analyses examined perceptions between pre- and post- surveys. Of 843 providers contacted, 217 responded to the pre-survey (25.7%). The most endorsed rationale for reviewing outcomes included improving clinical knowledge (95%), improving patient care (94%), and knowing whether care made a difference (93%). Nearly all (91%) reported being more likely to review outcomes if CE were awarded. Among the 67 who completed the open-ended items, the three dominant themes included enhance personal confidence and competence (43%); acquire personal knowledge (39%); and operations (21%). Of 211 providers who participated in the intervention, 56 (27%) were awarded CE. A total of 152 providers responded to the post-survey, and the percentage who agreed that reviewing outcomes improves job satisfaction rose from 89% to 95% between pre- and post-surveys (P = 0.05). EMS providers supported the personal and professional development and patient care improvement of reviewing patients' outcomes with associated CE. Further study is warranted to evaluate the generalizability of these findings and the best user experience.

Background. Medications are essential to emergency medical services (EMS) agencies when providing lifesaving care, but the EMS environment has challenges related to safe medication storage when compared with a hospital setting. We developed a structured process, based on common pharmacy practices, to review medications carried by EMS agencies to identify situations that may lead to medication error and to determine some best practices that may reduce potential errors and the risk of patient harm. Objective. To provide a descriptive account of EMS practices related to carrying and storing medications that have the potential for causing a medication administration error or patient harm. Methods. Using a structured process for inspection, an emergency medicine pharmacist and emergency physician(s) reviewed the medication carrying and storage practices of all nine advanced life support ambulance agencies within a five-county EMS region. Each medication carried and stored by the EMS agency was inspected for predetermined and spontaneously observed issues that could lead to medication error. These issues were documented and photographed. Two EMS medical directors reviewed each potential error for the risk of producing patient harm and assigned each to a category of high, moderate, or low risk. Because issues of temperature on EMS medications have been addressed elsewhere, this study concentrated on potential for EMS medication administration errors exclusive of storage temperatures. Results. When reviewing medications carried by the nine EMS agencies, 38 medication safety issues were identified (range 1 to 8 per EMS agency). Of these, 16 were considered to be high risk, 14 moderate risk, and eight low risk for patient harm. Examples of potential issues included carrying expired medications, container-labeling issues, different medications stored in look-alike vials or prefilled syringes in the same compartment, and carrying crystalloid solutions next to solutions premixed with a medication. When reviewing medications stored at the EMS agency stations, eight safety issues were identified (range from 0 to 4 per station), including five moderate-risk and three low-risk issues. No agency had any high-risk medication issues related to storage of medication stock in the station. Conclusion. We observed potential medication safety issues related to how medications are carried and stored at all nine EMS agencies in a five-county region. Understanding these issues may assist EMS agencies in reducing the potential for a medication error and risk of patient harm. More research is needed to determine whether following these suggested best practices for carrying medications on EMS vehicles actually reduces errors in medication administration by EMS providers or decreases patient harm.

Emergency medical services (EMS) providers face elevated burnout risk due to job-related stressors, organizational challenges, and physical and emotional demands. Stigma and limited support further endanger EMS providers’ wellbeing. Burnout not only affects providers but can also compromise care recipients, and system sustainability. Research on EMS providers’ wellbeing remains limited and subject to moderate generalisability. This study examines the prevalence of burnout, depression, suicidal thoughts, and turnover intention among Swiss EMS providers, offering a national multicentre perspective across all 26 cantons plus Liechtenstein. A web-based survey was distributed to all active EMS providers in Switzerland and Liechtenstein between May and June 2024. The questionnaire included validated patient-reported outcome measures of burnout (Maslach Burnout Inventory (MBI) and Copenhagen Burnout Inventory (CBI)), and depression (Patient Health Questionnaire-9). The primary outcome was the prevalence of burnout, and secondary outcomes were prevalences of depression, suicidal thoughts (measured using two dedicated additional questions) and turnover intention (evaluated with a specific frequency-based question). Multivariable logistic regressions were run separately for MBI and CBI outcomes to identify burnout determinants. Of 3669 eligible providers, 1485 completed the questionnaire (40.5%). Burnout prevalence was 43.4% (MBI) and 36.5% (CBI), with regional variations. Night shift frequency was consistently associated with increased burnout risk across both MBI and CBI in a dose-dependent manner. Age, gender, professional title categorized as “Other”, canton of work and childlessness, were associated with burnout in a scale-specific manner. Turnover intention was high, with 67.7% of respondents reporting having considered leaving their job at least once. A total of 13.4% of participants reported moderate to severe depression, and 10.2% indicated they had contemplated suicide, of which 46.7% within the past year. Burnout is a significant concern among Swiss EMS providers. Night shift frequency emerged as the only predictor consistently associated with burnout, showing a dose-dependent effect, and highlighting it as a priority target for intervention. Scale-specific associations reflect the multidimensional nature of burnout. These findings underscore the urgent need for targeted, evidence-based interventions to protect EMS providers’ wellbeing and mitigate cascading effects on prehospital care quality, safety, and the sustainability of the healthcare system.

Background Data on the effects of witness status and time from an emergency call to initiation of cardiopulmonary resuscitation (CPR) by emergency medical service (EMS) providers on neurological outcome in out-of-hospital cardiac arrest (OHCA) patients with non-shockable rhythm according to the first documented rhythm are limited. Purpose We aimed to determine the effects of witness status and time from an emergency call to CPR initiation by EMS providers on neurologically intact survival in OHCA patients according to the type of non-shockable rhythm (pulseless electrical activity [PEA] and asystole). Methods We analysed the records of 583,431 adult OHCA patients with non-shockable rhythm (191,905 bystander-witnessed arrest and 391,526 unwitnessed arrest). Data were derived from the prospectively recorded All-Japan OHCA registry between 2011 and 2016. Call to EMS-CPR interval was defined as the time from an emergency call to CPR initiation by EMS providers. The primary outcome was 1-month neurologically intact survival (cerebral performance category 1 or 2; CPC 1–2) and secondary outcome was presence of PEA. Results The rates of 1-month CPC 1–2 were 1.21% (2,326/191,905) for bystander-witnessed arrest and 0.24% (959/391,526) for unwitnessed arrest. When divided into 4 groups based on witness status and initial documented rhythm, these rates were 2.42% (1,869/77,190) for bystander-witnessed arrest with PEA (group A), 0.40% (457/114,715) for bystander-witnessed arrest with asystole (group B), 1.51% (679/44,926) for unwitnessed arrest with PEA (group C) and 0.08% (280/346,600) for unwitnessed arrest with asystole (group D). Multivariate logistic regression analysis revealed each 1-min delay of Call to EMS-CPR interval to be significantly associated with decreased chances of 1-month CPC 1–2 for groups A, B and D (adjusted odds ratio [OR]: 0.95, 0.91 and 0.96, respectively; 95% confidence interval [CI]: 0.93–0.96, 0.88–0.94 and 0.93–0.99, respectively). However, for group C, there was no significant relationship between these variables (adjusted OR: 1.00; 95% CI: 0.98–1.02). The proportion of PEA was 40.2% (77,190/191,905) for bystander-witnessed arrest and 11.5% (44,926/391,526) for unwitnessed arrest. Multivariate logistic regression analysis revealed that, as Call to EMS-CPR interval lengthened (per 1-min delay), the number of OHCA patients with PEA decreased for bystander-witnessed arrest (adjusted OR: 0.94; 95% CI: 0.93–0.94) and for unwitnessed arrest (adjusted OR: 0.96; 95% CI: 0.96–0.97). Conclusions The 1-month CPC 1–2 rate differed by witness status and initial documented rhythm in OHCA patients with non-shockable rhythm. Shortening of Call to EMS-CPR interval is crucial for improving 1-month CPC 1–2 rate and sustaining PEA, particularly in bystander-witnessed arrest.