First Responder Accuracy Using SALT during Mass-casualty Incident Simulation

First Responder Virtual Reality Simulator to train and assess emergency personnel for mass casualty response

As mass casualty incidents continue to escalate in the United States, we must improve frontline responder performance to increase the odds of victim survival. In this article, we describe the First Responder Virtual Reality Simulator, a high-fidelity, fully immersive, automated, programmable virtual reality (VR) simulation designed to train frontline responders to treat and triage victims of mass casualty incidents. First responder trainees don a wireless VR head-mounted display linked to a compatible desktop computer. Trainees see and hear autonomous, interactive victims who are programmed to simulate individuals with injuries consistent with an explosion in an underground space. Armed with a virtual medical kit, responders are tasked with triaging and treating the victims on the scene. The VR environment can be made more challenging by increasing the environmental chaos, adding patients, or increasing the acuity of patient injuries. The VR platform tracks and records their performance as they navigate the disaster scene. Output from the system provides feedback to participants on their performance. Eventually, we hope that the First Responder system will serve both as an effective replacement for expensive conventional training methods as well as a safe and efficient platform for research on current triage protocols.

A translational triage research development tool: standardizing prehospital triage decision-making systems in mass casualty incidents

Background

There is no global consensus on the use of prehospital triage system in mass casualty incidents. The purpose of this study was to evaluate the most commonly used pre-existing prehospital triage systems for the possibility of creating one universal translational triage tool.

Methods

The Rapid Evidence Review consisted of (1) a systematic literature review (2) merging and content analysis of the studies focusing on similarities and differences between systems and (3) development of a universal system.

Results

There were 17 triage systems described in 31 eligible articles out of 797 identified initially. Seven of the systems met the predesignated criteria and were selected for further analysis. The criteria from the final seven systems were compiled, translated and counted for in means of 1/7’s. As a product, a universal system was created of the majority criteria.

Conclusions

This study does not create a new triage system itself but rather identifies the possibility to convert various prehospital triage systems into one by using a triage translational tool. Future research should examine the tool and its different decision-making steps either by using simulations or by experts’ evaluation to ensure its feasibility in terms of speed, continuity, simplicity, sensitivity and specificity, before final evaluation at prehospital level.

Supplementary Information

The online version contains supplementary material available at 10.1186/s13049-021-00932-z.

360 virtual reality pediatric mass casualty incident: A cross sectional observational study of triage and out-of-hospital intervention accuracy at a national conference

OBJECTIVE

With adolescent mass casualty incidents (MCI) on the rise, out-of-hospital readiness is critical to optimize disaster response. We sought to test the feasibility and acceptability of a 360 Virtual Reality (360 VR) platform for disaster event decisionmaking.

METHODS

This was a cross-sectional observational assessment of a subject's ability to triage and perform out-of-hospital interventions using a 360 VR MCI module. A convenience sample of attendees was recruited over 1.5 days from the American College of Emergency Physicians (ACEP) national conference in San Diego, CA.

RESULTS

Two hundred and seven (207) subjects were enrolled. Ninety-six (46%) subjects identified as attendings, 66 (32%) as residents, 13 (6%) as medical students, 4 (2%) as emergency medical technicians and 28 (14%) as other. When comparing mean scores between groups, physicians who were <40 years old had mean scores higher than physicians who were >40 years old (8.7 vs 6.5, P < 0.001). Residents achieved higher scores than attendings (8.6 vs 7.5, P = 0.005). Based on a 5-point Likert scale, participants felt the 360 VR experience was engaging (median = 5) and enjoyable (median = 5). Most felt that 360 VR was more immersive than mannequin-based simulation training (median = 5).

CONCLUSION

We conclude that 360 VR is a feasible platform for assessing triage and intervention decisionmaking for adolescent MCIs. It is well received by subjects and may have a role as a training and education tool for disaster readiness. In this era of distanced learning, 360 VR is an attractive option for future immersive educational experiences.

Use of Simulated Patients in Disaster Medicine Training: A Systematic Review

Simulation is an effective teaching tool in disaster medicine education, and the use of simulated patients (SPs) is a frequently adopted technique. Throughout this article, we critically analyzed the use and the preparation of SPs in the context of simulation in disaster medicine. A systematic review of English, French, and Italian language articles was performed on PubMed and Google Scholar. Studies were included if reporting the use of SPs in disaster medicine training. Exclusion criteria included abstracts, citations, theses, articles not dealing with disaster medicine, and articles not using human actors in simulation. Eighteen papers were examined. All the studies were conducted in Western countries. Case reports represent 50% of references. Only in 44.4% of articles, the beneficiaries of simulations were students, while in most of cases were professionals. In 61.1% of studies SPs were moulaged, and in 72.2%, a method to simulate victim symptoms was adopted. Ten papers included a previous training for SPs and their involvement in the participants' assessment at the end of the simulation. Finally, this systematic review revealed that there is still a lack of uniformity about the use of SPs in the disaster medicine simulations.

Triage Performance of School Personnel Using the SALT System

INTRODUCTION

The aim of this study was to determine if school personnel can understand and apply the Sort, Assess, Life-saving interventions, Treat/Transport (SALT) triage methods after a brief training. The investigators predicted that subjects can learn to triage with accuracy similar to that of medically trained personnel, and that subjects can pass an objective-structured clinical exam (OSCE) evaluating hemorrhage control.

METHODS

School personnel were eligible to participate in this prospective observational study. Investigators recorded subject demographic information and prior medical experience. Participants received a 30-minute lecture on SALT triage and a brief lecture and demonstration of hemorrhage control and tourniquet application. A test with brief descriptions of mass-casualty victims was administered immediately after training. Participants independently categorized the victims as dead, expectant, immediate, delayed, or minimal. They also completed an OSCE to evaluate hemorrhage control and tourniquet application using a mannequin arm.

RESULTS

Subjects from two schools completed the study. Fifty-nine were from a private school that enrolls early childhood through grade eight, and 45 from a public school that enrolls grades seven and eight (n = 104). The average subject age was 45 years and 68% were female. Approximately 81% were teachers and 87% had prior cardiopulmonary resuscitation (CPR) training. Overall triage accuracy was 79.2% (SD = 10.7%). Ninety-six (92.3%) of the subjects passed the hemorrhage control OSCE.

CONCLUSIONS

After two brief lectures and a short demonstration, school personnel were able to triage descriptions of mass-casualty victims with an overall accuracy similar to medically trained personnel, and most were able to apply a tourniquet correctly. Opportunities for future study include integrating high-fidelity simulation and mock disasters, evaluating for knowledge retention, and exploring the study population's baseline knowledge of medical care, among others.

Comparing the Accuracy of Mass Casualty Triage Systems When Used in an Adult Population

Objective: To use a previously published criterion standard to compare the accuracy of 4 different mass casualty triage systems (Sort, Assess, Lifesaving Interventions, Treatment/Transport [SALT], Simple Triage and Rapid Treatment [START], Triage Sieve, and CareFlight) when used in an emergency department-based adult population. Methods: We performed a prospective, observational study of a convenience sample of adults aged 18 years or older presenting to a single tertiary care hospital emergency department. A co-investigator with prior emergency medical services (EMS) experience observed each subject's initial triage in the emergency department and recorded all data points necessary to assign a triage category using each of the 4 mass casualty triage systems being studied. Subjects' medical records were reviewed after their discharge from the hospital to assign the "correct" triage category using the criterion standard. The 4 mass casualty triage system assignments were then compared to the "correct" assignment. Descriptive statistics were used to compare accuracy and over- and under-triage rates for each triage system. Results: A total of 125 subjects were included in the study. Of those, 53% were male and 59% were transported by private vehicle. When compared to the criterion standard definitions, SALT was found to have the highest accuracy rate (52%; 95% CI 43-60) compared to START (36%; 95% CI 28-44), CareFlight (36%; 95% CI 28-44), and TriageSieve (37%; 95% CI 28-45). SALT also had the lowest under-triage rate (26%; 95% CI 19-34) compared to START (57%; 95% CI 48-66), CareFlight (58%; 95% CI 49-66), and TriageSieve (58%; 95% CI 49-66). SALT had the highest over-triage rate (22%; 95% CI 14-29) compared to START (7%; 95% CI 3-12), CareFlight (6%; 95% CI 2-11) and TriageSieve (6%; 95% CI 2-11). Conclusion: We found that SALT triage most often correctly triaged adult emergency department patients when compared to a previously published criterion standard. While there are no target under- and over-triage rates that have been published for mass casualty triage, all 4 systems had relatively high rates of under-triage.

A Comparison Between Differently Skilled Prehospital Emergency Care Providers in Major-Incident Triage in South Africa

IntroductionMajor-incident triage ensures effective emergency care and utilization of resources. Prehospital emergency care providers are often the first medical professionals to arrive at any major incident and should be competent in primary triage. However, various factors (including level of training) influence their triage performance.Hypothesis/ProblemThe aim of this study was to determine the difference in major-incident triage performance between different training levels of prehospital emergency care providers in South Africa utilizing the Triage Sieve algorithm.

METHODS

This was a cross-sectional study involving differently trained prehospital providers: Advanced Life Support (ALS); Intermediate Life Support (ILS); and Basic Life Support (BLS). Participants wrote a validated 20-question pre-test before completing major-incident training. Two post-tests were also completed: a 20-question written test and a three-question face-to-face evaluation. Outcomes measured were triage accuracy and duration of triage. The effect of level of training, gender, age, previous major-incident training, and duration of service were determined.

RESULTS

A total of 129 prehospital providers participated. The mean age was 33.4 years and 65 (50.4%) were male. Most (n=87; 67.4%) were BLS providers. The overall correct triage score pre-training was 53.9% (95% CI, 51.98 to 55.83), over-triage 31.4% (95% CI, 29.66 to 33.2), and under-triage 13.8% (95% CI, 12.55 to 12.22). Post-training, the overall correct triage score increased to 63.6% (95% CI, 61.72 to 65.44), over-triage decreased to 17.9% (95% CI, 16.47 to 19.43), and under-triage increased to 17.8% (95% CI, 16.40 to 19.36). The ALS providers had both the highest likelihood of a correct triage score post-training (odds ratio 1.21; 95% CI, 0.96-1.53) and the shortest duration of triage (median three seconds, interquartile range two to seven seconds; P=.034). Participants with prior major-incident training performed better (P=.001).

CONCLUSION

Accuracy of major-incident triage across all levels of prehospital providers in South Africa is less than optimal with non-significant differences post-major-incident training. Prior major-incident training played a significant role in triage accuracy indicating that training should be an ongoing process. Although ALS providers were the quickest to complete triage, this difference was not clinically significant. The BLS and ILS providers with major-incident training can thus be utilized for primary major-incident triage allowing ALS providers to focus on more clinical roles. AlenyoAN, SmithWP, McCaulM, Van HovingDJ. A comparison between differently skilled prehospital emergency care providers in major-incident triage in South Africa. Prehosp Disaster Med. 2018;33(6):575-580.

Correlation Between Paramedic Disaster Triage Accuracy in Screen-Based Simulations and Immersive Simulations

Background: Disaster triage is an infrequent, high-stakes skill set used by emergency medical services (EMS) personnel. Screen-based simulation (SBS) provides easy access to asynchronous disaster triage education. However, it is unclear if the performance during a SBS correlates with immersive simulation performance. Methods: This was a nested cohort study within a randomized controlled trial (RCT). The RCT compared triage accuracy of paramedics and emergency medical technicians (EMTs) who completed an immersive simulation of a school shooting, interacted with an SBS for 13 weeks, and then completed the immersive simulation again. The participants were divided into two groups: those exposed vs. those not exposed to 60 Seconds to Survival^© (60S), a disaster triage SBS. The aim of the study was to measure the correlation between SBS triage accuracy and immersive simulation triage accuracy. Improvements in triage accuracy were compared among participants in the nested study before and after interacting with 60S, and with improvements in triage accuracy in a previous study in which immersive simulations were used as an educational intervention. Results: Thirty-nine participants completed the SBS; 26 (67%) completed at least three game plays and were included in the evaluation of outcomes of interest. The mean number of plays was 8.5 (SD =7.4). Subjects correctly triaged 12.4% more patients in the immersive simulation at study completion (73.1% before, 85.8% after, P = 0.004). There was no correlation between the amount of improvement in overall SBS triage accuracy, instances of overtriage (P = 0.101), instances of undertriage (P = 0.523), and improvement in the second immersive simulation. A comparison of the pooled data from a previous immersive simulation study with the nested cohort data showed similar improvement in triage accuracy (P = 0.079). Conclusions: SBS education was associated with a significant increase in triage accuracy in an immersive simulation, although triage accuracy demonstrated in the SBS did not correlate with the performance in the immersive simulation. This improvement in accuracy was similar to the improvement seen when immersive simulation was used as the educational intervention in a previous study.

START versus SALT Triage: Which is Preferred by the 21st Century Health Care Student?

IntroductionWhile the art and science of disaster triage continue to evolve, the education of the US health care student in matters pertaining to disaster preparedness and response remains stifled. Unfortunately, these students will be assuming major decision-making responsibilities regarding catastrophes that will be complicated by climate change, nuclear threats, global terrorism, and pandemics. Meanwhile, Sort, Assess, Life-Saving Interventions, Treatment, and/or Transport (SALT) triage is being advocated over the globally popular Simple Triage and Rapid Treatment (START) algorithm for multiple reasons: (1) it's an all-hazard approach; (2) it has four medical interventions; and (3) it has an additional triage color for victims with non-survivable injuries.Hypothesis/ProblemAs present-day threats become more ominous and health care education emphasizes the needs of vulnerable populations and palliative care, the authors hypothesize that, when given a choice, health care students will prefer SALT triage.

METHODS

A convenience sample of 218 interprofessional, disaster-naïve health care students received just-in-time, unbiased education on both START and SALT triage systems. Students then completed a survey asking them to decide which triage system they believe would be most effective in their community.

RESULTS

A total of 123 health care students (56.4%) preferred SALT while 95 (43.6%) preferred START; however, only the physician assistant students showed a statistically significantly preference (28 versus six, respectively; P=.042). Interestingly, there was also a statistically significant difference in preference by gender (Chi-square=5.02; P=.025) of the observed distribution versus expected distribution in SALT and START. The females preferred SALT (61.0%) while the males preferred START (55.9%).Among those who preferred START, START being easier to learn was the most important reason cited. Among those who preferred SALT, the most important reason cited was that the number of patient triage categories seemed more logical, comprehensible, and consistent with traditional medical care.

CONCLUSION

While SALT's preference among females and physician assistant students was based on the addition of medical interventions and the provision of palliative care, START's preference was related to expediency. Based on this research, incorporating disaster concepts into US health care students' curricula encourages thoughtful consideration among the future health care leaders about the most effective approach to triage care. It is critical that further research be completed to determine, without reservation, which triage system will not only save the most lives but provide the most humane care to victims.Fink BN, Rega PP, Sexton ME, Wishner C. START versus SALT triage: which is preferred by the 21st century health care student? Prehosp Disaster Med. 2018;33(4):381-386.

Testing the START Triage Protocol: Can It Improve the Ability of Nonmedical Personnel to Better Triage Patients During Disasters and Mass Casualties Incidents ?

Objective

START (Simple Triage and Rapid Treatment) triage is a tool that is available even to nonmedical rescue personnel in case of a disaster or mass casualty incident (MCI). In Italy, no data are available on whether application of the START protocol could improve patient outcomes during a disaster or MCI. We aimed to address whether “last-minute” START training of nonmedical personnel during a disaster or MCI would result in more effective triage of patients.

Methods

In this case-control study, 400 nonmedical ambulance crew members were randomly assigned to a non-START or a START group (200 per group). The START group received last-minute START training. Each group examined 6000 patients, obtained from the Emergo Train System (ETS Italy, Bologna, Italy) victims database, and assigned patients a triage code (black-red-yellow-green) along with a reason for the assignment. Each rescuer triaged 30 patients within a 30-minute time frame. Results were analyzed according to Fisher’s exact test for a P value<0.01. Under- and over-triage ratios were analyzed as well.

Results

The START group completed the evaluations in 15 minutes, whereas the non-START group took 30 minutes. The START group correctly triaged 94.2% of their patients, as opposed to 59.83% of the non-START group (P<0.01). Under- and over-triage were, respectively, 2.73% and 3.08% for the START group versus 13.67% and 26.5% for the non-START group. The non-START group had 458 “preventable deaths” on 6000 cases because of incorrect triage, whereas the START group had 91.

Conclusions

Even a “last-minute” training on the START triage protocol allows nonmedical personnel to better identify and triage the victims of a disaster or MCI, resulting in more effective and efficient medical intervention. (Disaster Med Public Health Preparedness. 2017;11:305–309)

Pediatric Disaster Triage: Multiple Simulation Curriculum Improves Prehospital Care Providers' Assessment Skills

OBJECTIVE

Paramedics and emergency medical technicians (EMTs) triage pediatric disaster victims infrequently. The objective of this study was to measure the effect of a multiple-patient, multiple-simulation curriculum on accuracy of pediatric disaster triage (PDT).

METHODS

Paramedics, paramedic students, and EMTs from three sites were enrolled. Triage accuracy was measured three times (Time 0, Time 1 [two weeks later], and Time 2 [6 months later]) during a disaster simulation, in which high and low fidelity manikins and actors portrayed 10 victims. Accuracy was determined by participant triage decision concordance with predetermined expected triage level (RED [Immediate], YELLOW [Delayed], GREEN [Ambulatory], BLACK [Deceased]) for each victim. Between Time 0 and Time 1, participants completed an interactive online module, and after each simulation there was an individual debriefing. Associations between participant level of training, years of experience, and enrollment site were determined, as were instances of the most dangerous mistriage, when RED and YELLOW victims were triaged BLACK.

RESULTS

The study enrolled 331 participants, and the analysis included 261 (78.9%) participants who completed the study, 123 from the Connecticut site, 83 from Rhode Island, and 55 from Massachusetts. Triage accuracy improved significantly from Time 0 to Time 1, after the educational interventions (first simulation with debriefing, and an interactive online module), with a median 10% overall improvement (p < 0.001). Subgroup analyses showed between Time 0 and Time 1, paramedics and paramedic students improved more than EMTs (p = 0.002). Analysis of triage accuracy showed greatest improvement in overall accuracy for YELLOW triage patients (Time 0 50% accurate, Time1 100%), followed by RED patients (Time 0 80%, Time 1 100%). There was no significant difference in accuracy between Time 1 and Time 2 (p = 0.073).

CONCLUSION

This study shows that the multiple-victim, multiple-simulation curriculum yields a durable 10% improvement in simulated triage accuracy. Future iterations of the curriculum can target greater improvements in EMT triage accuracy.

First Responder Accuracy Using SALT during Mass-casualty Incident Simulation

INTRODUCTION

During mass-casualty incidents (MCIs), patient volume often overwhelms available Emergency Medical Services (EMS) personnel. First responders are expected to triage, treat, and transport patients in a timely fashion. If other responders could triage accurately, prehospital EMS resources could be focused more directly on patients that require immediate medical attention and transport.

HYPOTHESIS

Triage accuracy, error patterns, and time to triage completion are similar between second-year primary care paramedic (PCP) and fire science (FS) students participating in a simulated MCI using the Sort, Assess, Life-saving interventions, Treatment/Transport (SALT) triage algorithm.

METHODS

All students in the second-year PCP program and FS program at two separate community colleges were invited to participate in this study. Immediately following a 30-minute didactic session on SALT, participants were given a standardized briefing and asked to triage an eight-victim, mock MCI using SALT. The scenario consisted of a four-car motor vehicle collision with each victim portrayed by volunteer actors given appropriate moulage and symptom coaching for their pattern of injury. The total number and acuity of victims were unknown to participants prior to arrival to the mock scenario.

RESULTS

Thirty-eight PCP and 29 FS students completed the simulation. Overall triage accuracy was 79.9% for PCP and 72.0% for FS (∆ 7.9%; 95% CI, 1.2-14.7) students. No significant difference was found between the groups regarding types of triage errors. Over-triage, under-triage, and critical errors occurred in 10.2%, 7.6%, and 2.3% of PCP triage assignments, respectively. Fire science students had a similar pattern with 15.2% over-triaged, 8.7% under-triaged, and 4.3% critical errors. The median [IQR] time to triage completion for PCPs and FSs were 142.1 [52.6] seconds and 159.0 [40.5] seconds, respectively (P=.19; Mann-Whitney Test).

CONCLUSIONS

Primary care paramedics performed MCI triage more accurately than FS students after brief SALT training, but no difference was found regarding types of error or time to triage completion. The clinical importance of this difference in triage accuracy likely is minimal, suggesting that fire services personnel could be considered for MCI triage depending on the availability of prehospital medical resources and appropriate training.