Hospital Acute Care Surge Capacity (HACSC), Hospital Acute Care Surge Threshold (HACST), and Total Hospital Capacity (THC) are scales that were developed to quantify surge capacity in the event of a multiple-casualty incident (MCI). These scales take into consideration the need for adequate care for both critical (T1) and moderate (T2) trauma patients. The objective of this study was to verify the validity of these scales in nine hospitals of the Milano (Italy) metropolitan area that prepared for a possible MCI during EXPO 2015.

Both HACSC and HACST were computed for individual hospitals. These were compared to surge capacities declared by individual hospitals during EXPO 2015, and also to surge capacity evaluated during a simulation organized on August 23, 2016.

Both HACSC and HACST were smaller compared to capacities measured and reported by the hospitals, as well as those found during the simulation. This resulted in significant differences in THC when this was computed from the different methods of calculation.

Surge capacity is dependent on the method of measurement. Each method has its inherent deficiencies. Until more reliable methodologies are developed, there is a benefit to analyze surge capacity using several methods rather than just one. Emergency committee members should be aware of the importance of critical resources when looking to the hospital capacity to respond to an MCI, and to the possibility to effectively increase it with a good preparedness plan. Since hospital capacity during real events is not static but dynamic, largely depending on occupation of the available resources, it is important that the regional command center and the hospitals receiving casualties constantly communicate on specific agreed upon critical resources, in order for the regional command center to timely evaluate the overall regional capacity and guarantee the appropriate distribution of the patients.

FaccincaniR, Della CorteF, SesanaG, StucchiR, WeinsteinE, AshkenaziI, IngrassiaP. Hospital Surge Capacity during Expo 2015 in Milano, Italy. Prehosp Disaster Med. 2018;33(5):459–465.

The Australian prehospital profession has not yet facilitated a comprehensive discussion regarding paramedic role and responsibility during disasters. Whether paramedics have a duty to treat under extreme conditions and what acceptable limitations may be placed on such a duty require urgent consideration. The purpose of this research is to encourage discussion within the paramedic profession and broader community on this important ethical and legal issue.

The authors employed qualitative methods to gather paramedic and community member perspectives in Victoria, Australia.

These findings suggested that both paramedic and community member participants agree that acceptable limitations on paramedic duty to treat during disaster are required. These limitations should be based on consideration of the following factors: personal health circumstances (eg, pregnancy for female paramedics); pre-existing mental health conditions (eg, posttraumatic stress disorder/PTSD); competing personal obligations (eg, paramedics who are single parents); and unacceptable levels of personal risk (eg, risk of exposure and infection during a pandemic).

It is only with the engagement of a more broadly representative segment of the prehospital profession and greater Australian community that appropriate guidance on limiting standards of care under extreme conditions can be developed and integrated within prehospital care in Australia.

SmithE, BurkleFM Jr., GebbieK, FordD, BensimonC. Acceptable Limitations on Paramedic Duty to Treat During Disaster: A Qualitative Exploration. Prehosp Disaster Med. 2018;33(5):466–470.

A crucial component of a hospital’s disaster plan is an efficient staff recall communication method. Many hospitals use a “calling tree” protocol to contact staff members and recall them to work. Alternative staff recall methods have been proposed and explored.

An unannounced, multidisciplinary, randomized emergency department (ED) staff recall drill was conducted at night - when there is the greatest need for back-up personnel and staff is most difficult to reach. The drill was performed on December 14, 2017 at 4:00am and involved ED staff members from three hospitals which are all part of the McGill University Health Centre (MUHC; Montreal, Quebec, Canada). Three tools were compared: manual phone tree, instant messaging application (IMA), and custom-made hospital Short Message Service (SMS) system. The key outcome measures were proportion of responses at 45 minutes and median response time.

One-hundred thirty-two participants were recruited. There were 44 participants in each group after randomization. In the manual phone tree group, 18 (41%) responded within 45 minutes. In the IMA group, 11 participants (25%) responded in the first 45 minutes. In the SMS group, seven participants responded in the first 45 minutes (16%). Manual phone tree was significantly better than SMS with an effect size of 25% (95% confidence interval for effect: 4.6% to 45.0%; P=.018). Conversely, there was no significant difference between manual phone tree and IMA with an effect size of 16% (95% confidence interval for effect: −5.7% to 38.0%; P=.17) There was a statistically significant difference in the median response time between the three groups with the phone tree group presenting the lowest median response time (8.5 minutes; range: 2.0 to 8.5 minutes; P=.000006).

Both the phone tree and IMA groups had a significantly higher response rate than the SMS group. There was no significant difference between the proportion of responses at 45 minutes in the phone tree and the IMA arms. This study suggests that an IMA may be a viable alternative to the traditional phone tree method. Limitations of the study include volunteer bias and the fact that there was only one communication drill, which did not allow staff members randomized to the IMA and SMS groups to fully get familiar with the new staff recall methods.

HomierV, HamadR, LarocqueJ, ChasséP, KhalilE, FrancJM.A Randomized Trial Comparing Telephone Tree, Text Messaging, and Instant Messaging App for Emergency Department Staff Recall for Disaster Response. Prehosp Disaster Med. 2018;33(5):471–477.

Dogs left behind in the restricted area by the Great East Japan Earthquakes of 2011 (Fukushima Prefecture, Japan) were initially rescued at a temporary first response shelter under chaotic conditions: poor housing and husbandry was maintained by unfamiliar/untrained staff, and lack of exercise was associated with deterioration of the mental and physical health of the impounded dogs. The objectives of this study were to report characteristics, disposition, and health status of dogs rescued in the Fukushima Prefecture, and to perform a retrospective epidemiological evaluation of factors associated with disposition and disease incidence at shelters.

The problems addressed in this study were shelter-related health issues at the first response shelter and reasons for retained adoption at the secondary shelter that caused delayed closure of the shelter.

A retrospective cohort study was performed with all dogs that were rescued from the restricted area in the Fukushima Prefecture. Kaplan-Meier time-to-event analysis was performed to estimate the median days to outcomes. A chi-square test of homogeneity was used to determine whether ownership status was associated with breed. Cox proportional hazards regression models were used to assess the association between time-to-adoption with ownership status, age, sex, and breed, the association between time to onset of diarrhea with age and breed, and between duration of diarrheic symptoms with the number of antibiotics and the number of medications.

Five-hundred and twenty-nine dogs were admitted to the Ihno and Miharu shelters (Fukushima Prefecture), including 179 that had detailed medical records. Seventy-six percent of dogs were mixed breed. Twenty-six percent of dogs had verified ownership, and almost 16% of dogs were reclaimed by their owners. Sixty-six percent of dogs developed diarrhea, and 17 different antibiotics were used to treat it. Using three or more different antibiotics was associated with prolonged signs of diarrhea. Dogs with verified ownership took longer for adoption than those without verified ownership. Breed and sex were not significantly associated with time to adoption. Age was associated with prolonged time to adoption.

To improve the welfare of dogs in disasters, responsible owner education, a well-organized registered volunteer training program for care of animals at shelters, proper disease management protocols, and enrichment strategies to prevent stress and disease in shelter setting are essential.

TanakaA, Martinez-LopezB, KassP.Epidemiological Evaluation of Dogs Rescued in the Fukushima Prefecture Following the Great East Japan Earthquakes of 2011. Prehosp Disaster Med. 2018;33(5):478–583.

Point-of-Care Ultrasound (POCUS) has become an important diagnostic tool for hospital-based clinicians. This study assesses the role of POCUS at Pemberton Music Festival 2016 (Pemberton, British Columbia [BC], Canada), a remote mass gathering where physicians face limited resources, complex disposition decisions, and a dynamic clinical environment.

This study prospectively evaluated the impact of POCUS on patient diagnosis, management, and disposition based on the self-report of the study physicians. The authors hypothesized that having ultrasound available for use would aid in diagnostic and management decisions and would reduce the need to transfer patients off-site to other health care facilities, reducing impact on the acute health services in the host community.

A handheld ultrasound was available for use by physicians in the main medical tent. All participating physicians self-reported their training and comfort using POCUS. After each POCUS scan, physicians completed a survey and recorded the indication for use, scans performed, and impact on patient diagnosis, management, and disposition.

In total, POCUS was used on 28 of the 686 patients treated in the main medical tent; POCUS was reported to narrow the differential diagnosis in 64% of cases and altered the working diagnosis in 21% of cases. Its use changed the management plan in 39% of patients. Its use was reported to reduce the burden on broader health care resource utilization in 46% of cases and prevented ambulance transport off-site in 32% of cases (nine cases in total). This corresponded to an absolute risk reduction of 1.3% for the percentage of patients transferred to hospital (PPTH; relative risk reduction of 53%).

Physicians reported that POCUS improved the diagnosis, management, and disposition of select patients at a remote, multi-day music festival. Also, POCUS reduced ambulance transfers off-site and reduced the perceived burden on broader health care utilization.

PragerR, SedgwickC, LundA, KimD, HoB, StachuraM, GutmanS. Prospective Evaluation of Point-of-Care Ultrasound at a Remote, Multi-Day Music Festival. Prehosp Disaster Med. 2018;33(5):484–489.

Invasive blood pressure (IBP) monitoring could be of benefit for certain prehospital patient groups such as trauma and cardiac arrest patients. However, there are disadvantages with using conventional IBP devices. These include time to prepare the transducer kit and flush system as well as the addition of long tubing connected to the patient. It has been suggested to simplify the IBP equipment by replacing the continuous flush system with a syringe and a short stopcock.

In this study, blood pressures measured by a standard IBP (sIBP) transducer kit with continuous flush was compared to a transducer kit connected to a simplified and minimized flush system IBP (mIBP) using only a syringe.

A mechanical, experimental model was used to create arterial pressure pulsations. Measurements were made simultaneously using a sIBP and mIBP device, respectively. This was repeated four times using different mean arterial pressure (MAP): 40, 70, 110, and 140mm Hg. For each series, 16 measurements were taken during 20 minutes. Data were analyzed using Bland-Altman plots. Measurement error greater than five percent was regarded as clinically significant.

Mean bias and standard deviation (SD) for systolic blood pressure (SBP), diastolic blood pressure (DBP), and MAP was -3.05 (SD = 2.07), 0.2 (SD = 0.48), and -0.3 (SD = 0.55) mmHg, respectively. Bland-Altman plots revealed that the bias and SD for systolic pressures was mainly due to an increased under-estimation of pressures in lower ranges. All MAP and 98.4% of diastolic pressure measurements had an error of less than five percent. Systolic pressures in the MAP 40 series all had an error of greater than five percent. All other systolic pressures had an error of less than five percent.

Thus, IBP with the mIBP flush system provides accurate measurement of MAP and DBP in a wide range of physiological pressures. For SBP, there was a tendency to under-estimate pressures, with larger error in lower pressures. Implementation of a simplified flush system could allow further development and potentially simplify the use of IBP for prehospital critical care teams.

KarlssonJ, LindeJ, SvensenC, GellerforsM. Prehospital Invasive Arterial Pressure: Use of a Minimized Flush System. Prehosp Disaster Med. 2018;33(5):490–494.

This study evaluated how Tactical Emergency Casualty Care (TECC) training prepared law enforcement officers (LEOs) with the tools necessary to provide immediate, on-scene medical care to successfully stabilize victims of trauma.

This was a retrospective, de-identified study using a seven-item Fairfax County (Virginia USA) TECC After-Action Questionnaire and Arlington County (Virginia USA) police reports.

Forty-six encounters were collected from 2015 through 2016. Eighty-four percent (n=39) of the encounters were from TECC After-Action Questionnaires and 15% (n=7) were from police reports. The main injuries included 13% (n=6) arterial bleeds, 46% (n=21) mild/moderate bleeds, 37% (n=17) large wounds, 20% (n=9) penetrating chest wounds, and 13% (n=6) open abdominal wounds. One-hundred percent of officers reported success in stabilizing victim injuries. Seventy-four percent of officers (n=26) did not encounter problems caring for a patient while 26% (n=9) encountered a problem. Ninety-seven percent (n=37/38) answered Yes, the training was sufficient, and three percent (n=1) indicated it was OK.

This is the most comprehensive study of TECC use among LEOs to date that supports the importance of TECC training for all LEOs in prehospital trauma care. Results of this study showed TECC training prepared LEOs with the operational tools necessary to provide immediate, on-scene medical care to successfully stabilize victims of trauma. Continuing to train increasing numbers of LEOs in TECC is key to saving the lives of victims of trauma in the future.

RothschildHR, MathiesonK.Effects of Tactical Emergency Casualty Care Training for Law Enforcement Officers. Prehosp Disaster Med.2018;33(5):495–500.

Ischemic stroke treatment is time-sensitive, and barriers to providing prehospital care encountered by Emergency Medical Services (EMS) providers have been under-studied.

This study described barriers to providing prehospital care, identified predictors of these barriers, and assessed the impact of these barriers on EMS on-scene time and administration of tissue plasminogen activator (tPA) in the emergency department (ED).

A retrospective cohort study was performed using the Get With The Guidelines-Stroke (GWTG-S; American Heart Association [AHA]; Dallas, Texas USA) registry at two hospitals to identify ischemic stroke patients arriving by EMS. Variables were abstracted from prehospital and hospital medical records and merged with registry data. Barriers to care were grouped into themes. Logistic regression was used to identify predictors of barriers to care, and bi-variate tests were used to assess differences in EMS on-scene time and the proportion of patients receiving tPA between patients with and without barriers.

Barriers to providing prehospital care were documented for 15.5% of patients: 29.6% related to access, 26.7% communication, 23.0% extrication and transportation, 20.0% refusal, and 14.1% assessment/management. Non-white and non-black race (OR: 3.69; 95% CI, 1.63-8.36) and living alone (OR: 1.53; 95% CI, 1.05-2.23) were associated with greater odds of barriers to providing care. The EMS on-scene time was ≥15 minutes for 70.4% of patients who had a barrier to care, compared with 49.0% of patients who did not (P<.001). There was no significant difference in the proportion of patients who were administered tPA between those with and without barriers to care (14.1% vs 19.2%; P=.159).

Barriers to providing prehospital care were documented for a sizable proportion of ischemic stroke patients, with the majority related to patient access and communication, and occurred more frequently among non-white and non-black patients and those living alone. Although EMS on-scene time was longer for patients with barriers to care, the proportion of patients receiving tPA in the ED did not differ.

LiT, CushmanJT, ShahMN, KellyAG, RichDQ, JonesCMC. Barriers to Providing Prehospital Care to Ischemic Stroke Patients: Predictors and Impact on Care. Prehosp Disaster Med.2018;33(5):501–507.

The goal of this study was to find out the training received in Urgent and Emergency Medicine (UEM) by the Primary Health Care (PHC) physicians of Asturias (Spain), as well as their perception of their own theoretical knowledge and practical skills in a series of procedures employed in life-threatening emergencies (LTEs), and also to analyze the differences according to the geographical area of their work.

This was a cross-sectional survey of PHC physicians using an ad hoc survey of a sample of 213 physicians in Asturias regarding their self-perception of theoretical knowledge and practical skills in techniques used in LTEs by areas of work (rural, suburban, and urban). The interview was conducted by mail from April through May 2017. The data processing has used absolute and relative frequencies, as well as central tendency parameters and dispersion parameters. The estimates for the entire population have been made using confidence intervals for the mean of 95%. In the comparison of parameters, the differences between parameters with a probability of error less than five percent (P<.05) have been considered significant. For the comparison of means between the different techniques in the different areas of work, ANOVA was used.

With respect to the training of physicians, in general, for managing emergencies, both at the regional level and by areas of work (rural, suburban, and urban), none of the sets analyzed attained five points. By areas of work, it was the suburban region where there was a greater average general level of knowledge. There were significant differences in the average theoretical knowledge and the average practical skills in the procedures studied according to the different areas of work. The greater number of significant differences was between the urban and suburban regions and within the urban area.

It’s necessary to ensure an adequate homogeneity of the levels of theoretical knowledge and practical skills of PHC physicians in order to guarantee the equity of provision of health care in emergencies in different geographical areas.

Cernuda MartínezJA, Castro DelgadoR, Ferrero FernándezE, Arcos GonzálezP. Self-Perception of Theoretical Knowledge and Practical Skills by Primary Health Care Physicians in Life-Threatening Emergencies. Prehosp Disaster Med. 2018;33(5):508–518.

Application of a tourniquet is the cornerstone in management of combat-related extremity hemorrhages. Continuous and appropriate training is required to use tourniquets correctly.

The aim of this study was to analyze the impact of a refresher training session, conducted directly in the theater of military operations, on the performance of tourniquet use.

During their deployment (October 2015-April 2016) in the Central African Republic, a first simulation session evaluated soldiers from two combats platoons for the application of the SOFFT (Special Operation Forces Tactical Tourniquet; Tactical Medical Solutions; Anderson, South California USA) tourniquet. After randomization, a R (+) group underwent a refresher training session, while a R (−) group did not. Two months later, a second simulation session was conducted for both groups: R (+) and R (−). A dedicated score (one to seven points), including delay and effectiveness, evaluated the soldiers’ performance for tourniquet application.

Twenty-six subjects were included in the R (+) group and 24 in the R (−) group. Between the two assessments, the score improved for 61.5% of subjects of the R (+) group and 37.5% subjects of the R (−) group (P=.09). More particularly, the performance score increased from 4.2 (SD=1.4) to 5.5 (SD=0.9; P=.002) in subjects of the R (+) group whose last training for tourniquet application was over six months prior.

A refresher tourniquet training session, conducted directly in a combat zone, is especially effective for soldiers whose last training session was over six months prior. A dedicated score can assess appropriately the performance of tourniquet training.

MartinezT, DuronS, SchaalJV, BaudoinY, BarbierO, DabanJL, BoutonnetM, AussetS, PasquierP. Tourniquet Training Program Assessed by a New Performance Score. Prehosp Disaster Med. 2018;33(5):519–525.

Each year, Emergency Medical Services (EMS) personnel respond to over 30 million calls for assistance in the United States alone. These EMS personnel have a rate of occupational fatality comparable to firefighters and police, and a rate of non-fatal injuries that is higher than the rates for police and firefighters and much higher than the national average for all workers. In Australia, no occupational group has a higher injury or fatality rate than EMS personnel. Emergency Medical Services personnel in the US have a rate of occupational violence injuries that is about 22-times higher than the average for all workers. On average, more than one EMS provider in the US is killed every year in an act of violence.

The objective of this epidemiological study was to identify the risks and factors associated with work-related physical violence against EMS personnel internationally.

An online survey, based on a tool developed by the World Health Organization (WHO; Geneva, Switzerland), collected responses from April through November 2016.

There were 1,778 EMS personnel respondents from 13 countries; 69% were male and 54% were married. Around 55% described their primary EMS work location as “urban.” Approximately 68% described their employer as a “public provider.” The majority of respondents were from the US.

When asked “Have you ever been physically attacked while on-duty?” 761 (65%) of the 1,172 who answered the question answered “Yes.” In almost 10% (67) of those incidents, the perpetrator used a weapon. Approximately 90% of the perpetrators were patients and around five percent were patient family members. The influence of alcohol and drugs was prevalent. Overall, men experienced more assaults than women, and younger workers experienced more assaults than older workers.

In order to develop and implement measures to increase safety, EMS personnel must be involved with the research and implementation process. Furthermore, EMS agencies must work with university researchers to quantify agency-level risks and to develop, test, and implement interventions in such a way that they can be reliably evaluated and the results published in peer-reviewed journals.

MaguireBJ, BrowneM, O’NeillBJ, DealyMT, ClareD, O’MearaP. International Survey of Violence Against EMS Personnel: Physical Violence Report. Prehosp Disaster Med. 2018;33(5):526–531.

Routine advanced airway usage by Emergency Medical Services (EMS) has had conflicting reports of being the secure airway of choice in pediatric patients.

The primary objective was to describe a pediatric cohort requiring airway management upon their arrival directly from the scene to two pediatric emergency departments (PEDs). A secondary objective included assessing for associations in EMS airway management and patient outcomes.

Retrospective data from the health record were reviewed, including EMS reports, for all arrivals less than 18 years old to two PEDs who required airway support between May 2015 and July 2016. The EMS management was classified as basic (oxygen, continuous positive airway pressure [CPAP], or bag-valve-mask [BVM]) or advanced (supraglottic or endotracheal intubation [ETI]) based on EMS documentation. Outcomes included oxygenation as documented by receiving PED and hospital mortality.

In total, 104 patients with an average age 5.9 (SD=5.1) years and median EMS Glasgow Coma Scale (GCS) of nine (IQR 3-14) were enrolled. Basic management was utilized in 70% of patients (passive: n=49; CPAP: n=2; BVM: n=22). Advanced management was utilized in 30% of patients (supraglottic: n=4; ETI: n=27). Proper ETI placement was achieved in 48% of attempted patients, with 41% of patients undergoing multiple attempts. Inadequate oxygenation occurred in 18% of patients, including four percent of ETI attempts, nine percent of BVM patients, and 32% of passively managed patients. Adjusted for EMS GCS, medical patients undergoing advanced airway management experienced higher risk of mortality (risk-ratio [RR] 2.98; 95% CI, 1.18-7.56; P=.021).

With exception to instances where ETI is clearly indicated, BVM management is effective in pediatric patients who required airway support, with ETI providing no definitive protective factors. Most of the patients who exhibited inadequate oxygenation upon arrival to the PED received only passive oxygenation by EMS.

TweedJ, GeorgeT, GreenwellC, VinsonL.Prehospital Airway Management Examined at Two Pediatric Emergency Centers. Prehosp Disaster Med. 2018;33(5):532–538.

There is a growing body of literature relating to mass-gathering events. A common thread amongst this literature, particularly the literature relating to music festivals, is the incidence of patients presenting with substance and/or alcohol intoxication. However, the impact of alcohol and/or drugs on the provision of in-event health care services has not been explored in detail.

The goal of this review was to develop an understanding of the impact of alcohol and/or drugs on in-event health care services at mass-gathering events.

This paper used integrative review as a methodology. The articles included in this literature review were sourced by searching databases inclusive of Medline (Ovid; US National Library of Medicine, National Institutes of Health; Bethesda, Maryland USA), Scopus (Elsevier; Amsterdam, Netherlands), PsycINFO (Ovid; American Psychological Association; Washington DC, USA), and Pub Med (National Center for Biotechnology Information, National Institutes of Health; Bethesda, Maryland USA). Identified manuscripts that met the inclusion criteria were thematically analyzed.

In total, 12 manuscripts met the inclusion criteria for this review. A thematic analysis of these manuscripts identified three main themes: (i) predictive factors, (ii) patient presentation rates, and (iii) levels of care.

Substance use and/or intoxication can place a strain on in-event medical services at mass-gathering events. Of the various types of mass-gathering events, music festivals appear to be the most affected by substance use and intoxication.

BullockM, RanseJ, HuttonA.Impact of Patients Presenting with Alcohol and/or Drug Intoxication on In-Event Health Care Services at Mass-Gathering Events: An Integrative Literature Review. Prehosp Disaster Med. 2018;33(5):539–542.

A Chemical, Biological, Radiological, Nuclear, and explosive (CBRNe) event is an emergency which can result in injury, illness, or loss of life. The emergency department (ED) as a health system is at the forefront of the CBRNe response with staff acting as first receivers. Emergency departments are under-prepared to respond to CBRNe events - recognizing key factors which underlie the ED CBRNe response is crucial to provide evidence-based knowledge to inform policies and, most importantly, clinical practice.

Challenges in detection, decontamination, and diagnosis are associated with the ED CBRNe response when faced with self-presenting patients.

A systematic review was carried out in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). An in-depth search strategy was devised to identify studies which focused on the ED and CBRNe events. The inclusion criteria were stringent in terms of the environment (ED), participants (first receivers), situation (CBRNe response), and actions (detection, decontamination, and diagnosis). Fifteen databases and topic-specific journals were searched. Studies were critically appraised using the Mixed Methods Appraisal Tool (MMAT). Papers were thematically coded and synthesized using NVivo 10 (QSR International Ltd, Melbourne, Australia).

Sixty-seven full-text papers were critically appraised using the MMAT; 70% were included (n = 60) as medium- or high-quality studies. Data were grouped into four themes: preparedness, response, decontamination, and personal protective equipment (PPE) problems.

This study has recognized the ED as a system which depends on four key factors - preparedness, response, decontamination, and PPE problems - which highlight challenges, uncertainties, inconsistencies, and obstacles associated with the ED CBRNe response. This review suggests that response planning and preparation should be considered at three levels: organizational (policies and procedures); technological (decontamination, communication, security, clinical care, and treatment); and individual (willingness to respond, PPE, knowledge, and competence). Finally, this study highlighted that there was a void specific to detection and diagnosis of CBRNe exposure on self-presenting patients in the ED.

The review identified concerns for both knowledge and behaviors which suggests that a systems approach would help understand the ED response to CBRNe events more effectively. The four themes provide an evidence-based summary for the state of science in ED CBRNe response, which can be used to inform future policies and clinical procedures.

RazakS, HignettS, BarnesJ. Emergency Department Response to Chemical, Biological, Radiological, Nuclear, and Explosive Events: A Systematic Review. Prehosp Disaster Med. 2018;33(5):543–549.

Multi-casualty incidents (MCIs) continue to occur throughout the world, whether they be mass shootings or natural disasters. Prehospital emergency services have done a professional job at stabilizing and transporting the victims to local hospitals. When there are multiple casualties, there may not be enough professional responders to care for the injured. Bystanders and organized volunteer first responders have often helped in extricating the victims, stopping the bleeding, and aiding in the evacuation of the victims. Magen David Adom (MDA translated as “Red Shield of David”), the national Emergency Medical Services (EMS) provider for Israel, has successfully introduced a program for volunteer first responders that includes both a mobile-phone-based application and appropriate life-saving equipment. Most of the responders, known as Life Guardians, are already medical professionals such as physicians, nurses, or off-duty medics. They are notified by a global positioning system application if there is a nearby life-threatening incident such as respiratory or cardiac arrest, major trauma, or an MCI. They are given a kit that includes a bag-valve mask device, oropharyngeal airways, tourniquets, and bandages. There are currently 17,000 Life Guardians, and in the first-half of 2017, they responded to 253 events.

The Life Guardians are essentially an out-of-hospital manpower multiplier using a simple crowdsourcing application who have the necessary skills and equipment to treat those in cardiopulmonary arrest, or victims of trauma, including MCIs. Such a model can be integrated into other systems throughout the world to save lives.

JaffeE, DadonZ, AlpertEA. Wisdom of the Crowd in Saving Lives: The Life Guardians App. Prehosp Disaster Med. 2018;33(5):550–552.

Parents are a primary support for children following disasters, even though they face numerous challenges in addressing the physical and social consequences of an event. Parents who are directly exposed to a disaster and those who develop psychiatric disorders post-event are likely to be especially challenged and may be limited in their ability to support their children. This Brief Report describes a pilot study of survivors of the September 11, 2001 World Trade Center (New York USA) attacks who reported their own psychosocial consequences and the reactions of their children three years post-event.

The primary hypothesis of the study was that children’s September 11th reactions would be associated with their parents’ psychiatric status. Secondary hypotheses were that the children’s disaster reactions would be associated with direct exposure to the disaster in children and/or their parents, parent-child separation due to the disaster, and disaster-related school absence.

Approximately three years after the 2001 World Trade Center attacks, 116 parents recruited from disaster-affected or disaster-related organizations were assessed using structured diagnostic interviews and queried about their children’s (188 youths, aged three to 17 years at the time of the attacks) posttraumatic stress symptoms and behavioral changes.

Almost one-half of the parents had a post-disaster psychiatric disorder, including major depression in 27% and disaster-related posttraumatic stress disorder (PTSD) in 11%. More than three-fourths of the children had at least one disaster-related posttraumatic stress symptom, and more than one-half experienced at least one post-disaster behavior change. A minority of the children were reported to have increased school behavior problems or a decline in their grades. Key correlates of children’s disaster-related posttraumatic stress symptoms and post-disaster behavior changes were parent-child separation due to the disaster and parental post-disaster psychiatric disorders.

Because parents provide primary caretaking and support for children post-disaster, addressing the needs of parents is critical to their ability to assist their children. Reducing parents’ symptoms should increase their emotional availability and enhance their ability to address the needs of their children. Given the challenges in providing disaster interventions directly to children, especially when resources are limited, addressing parent psychopathology and distress (even in the absence of focusing on children’s symptoms) may benefit children.

PfefferbaumB, SimicZ, NorthCS. Parent-Reported Child Reactions to the September 11, 2001 World Trade Center Attacks (New York USA) in Relation to Parent Post-Disaster Psychopathology Three Years After the Event. Prehosp Disaster Med. 2018;33(5):558–564.