Training emergency department (ED) personnel in the care of victims of mass-casualty incidents (MCIs) is a highly challenging task requiring unique and innovative approaches. The purpose of this study was to retrospectively explore the value of high-fidelity simulators in an exercise that incorporates time and resource limitation as an optimal method of training health care personnel in mass-casualty care.

Mass-casualty injury patterns from an explosive blast event were simulated for 12 victims using high-fidelity computerized simulators (HFCS). Programmed outcomes, based on the nature of injuries and conduct of participants, ranged from successful resuscitation and survival to death. The training exercise was conducted five times with different teams of health care personnel (n = 42). The exercise involved limited time and resources such as blood, ventilators, and imaging capability. Medical team performance was observed and recorded. Following the exercise, participants completed a survey regarding their training satisfaction, quality of the exercise, and their prior experiences with MCI simulations. The Likert scale responses from the survey were evaluated using mean with 95% confidence interval, as well as median and inter-quartile range. For the categorical responses, the frequency, proportions, and associated 95% confidence interval were calculated.

The mean rating on the quality of experiences related trainee survey questions (n = 42) was between 4.1 and 4.6 on a scale of 5.0. The mean ratings on a scale of 10.0 for quality, usefulness, and pertinence of the program were 9.2, 9.5, and 9.5, respectfully. One hundred percent of respondents believed that this type of exercise should be required for MCI training and would recommend this exercise to colleagues. The five medical team (n = 5) performances resulted in the number of deaths ranging from two (including the expectant victims) to six. Eighty percent of medical teams attempted to resuscitate the “expectant” infant and exhausted the O- blood supply. Sixty percent of medical teams depleted the supply of ventilators. Forty percent of medical teams treated “delayed” victims too early.

A training exercise using HFCS for mass casualties and employing limited time and resources is described. This exercise is a preferred method of training among participating health care personnel.

On 08 May 2003, a tornado categorized as an F-3 on the Fujita Tornado Scale (the “F Scale”) struck an Oklahoma City, Oklahoma commuter bus carrying 24 passengers. The driver evacuated several passengers before the tornado struck. The tornado rolled the bus, and pelted it with debris.

A case-series investigation of tornado-related injuries was conducted among passengers who were evacuated to a ditch and those who remained on the bus when the tornado struck.

Nineteen of 24 passengers sought care for injuries at hospital emergency departments (injury rate= 79.2%).While a greater number of passengers who were outside the bus when the tornado struck (11) sought care for injuries than did those who remained on the bus (8); passengers outside of the bus suffered fewer injuries than did those who remained on the bus (median number of injuries 3 versus 4), and their injuries were lesssevere (median injury severity score (ISS) 1 versus 4).

For persons caught in motor vehicles during tornado events, this study supports currently accepted recommendations to immediately evacuate and lie in a low-lying area away from motor vehicles if other shelter is unavailable. However, generalizing the experience of bus passengers to automobile drivers might be inappropriate because buses lack the safety features that might protect automobile drivers from tornado-related injuries.

Prehospital postresuscitation induced hypothermia (IH) has been shown to reduce neurological complications in comatose cardiac-arrest survivors. Retrofitting ambulances to include equipment appropriate to initiate hypothermia, such as refrigeration units for cooled saline, is expensive. The objective of this nonhuman subject research study was to determine if inexpensive, commercially available coolers could, in conjunction with five reusable ice packs, keep two 1 L bags of precooled 0.9% normal saline solution (NSS) at or below 4°C for an average shift of eight to 12 hours in a real-world environment, on board in-service Emergency Medical Service (EMS) units, over varying weather conditions in all seasons.

The coolers were chosen based on availability and affordability from two nationally available brands: The Igloo MaxxCold (Igloo Products Corp., Katy, Texas USA) and Coleman (The Coleman Company, Wichita, Kansas USA). Both are 8.5 liter (nine-quart) coolers that were chosen because they adequately held two 1 L bags of saline solution, along with the reusable ice packs designated in the study design, and were small enough for ease of placement on ambulances. Initial testing of the coolers was conducted in a controlled environment. Thereafter, each EMS unit was responsible to cool the saline to less than 4°C prior to shift. Data were collected by emergency medical technicians, paramedics, and resident physicians working in seven different ambulance squads. Data analysis was performed using repeated measurements recorded over a 12-hour period from 19 individual coolers and were summarized by individual time points using descriptive statistics.

Initial testing determined that the coolers maintained temperatures of 4°C for 12 hours in a controlled environment. On the ambulances, results based on the repeated measurements over time revealed that the saline solution samples as defined in the protocol, remained consistently below 4°C for 12 hours. Utilizing the lower bound of the 2-sided 95% exact binomial confidence intervals, there was less than a five percent chance that saline samples could not be maintained below 4°C for 12 hours, even during the summer months.

Simple, commercially available coolers can maintain two 1 L bags of 0.9% NSS at 4°C for 12 hours in ambulances in varying environmental conditions. This suggests that EMS agencies could inexpensively initiate prehospital IH in appropriate cases.

KaneKE , TomshoRJ , PheasantK , StaufferT , SchoenfeldtB , HamiltonS , KainT , KaneBG . The “ICE” Study: Feasibility of Inexpensive Commercial Coolers on Mobile EMS Units. Prehosp Disaster Med. 2014;29(3):1-8.

Heat stress is an occupational hazard for all personnel requiring Personal Protective Equipment (PPE). Even “breathable PPE” increases measurable heat stress in active troops and surgical personnel. A novel negative-pressure, semipermeable surgical cooling vests for use in the operating theater was jointly developed by Mountain Laurel Biomedical, Hamilton Sundstrand, and Hartford Hospital.

Surgical personnel alternated between wearing cooling garment vs no cooling under their surgical gowns (PPE) during surgical procedures lasting up to several hours. Tympanic temperatures were monitored for safety. A questionnaire was completed after the conclusion of surgery to assess perception of comfort. Trials began at ∼18 deg C, but ambient temperature was increased to 24 deg C (40–50% RH) for the third series of trials. Results: The study was terminated prematurely. After wearing the cooling vest, surgeons refused to complete additional control trials due to the heat. They demanded to use the cooling device for all surgery, even outside the protocol! Vest wearers remained dry and reported a statistically significant (p < 0.0001) greater level of comfort compared to control subjects. The weight, fit, and mobility restriction of the vest was not clinically significant.

Active cooling and drying using a negative pressure cooling vest improves subjective thermal comfort with minimal perceived impact on mobility during surgical procedures. This technology may have utility in other fields that utilize PPE. The Chemical Biological Warfare (CBW) ensemble, in particular, is a promising candidate. Heat stress from PPE ensemble even if “breathable” -Cooling at ∼100 watts with 18 deg C water -Semipermeable membrane allows condensation removal. Wearer stays cool and dry. -Negative pressure prevents coolant loss if punctured -Minimal perceived restriction of shoulder, neck, and waist range of motion - Light weight ∼1.5 lbs. (0.68 kg) - Quick disconnects allow options for cooling source.

In 2022, the Harvard/Beth Israel Deaconess Disaster Medicine Fellowship conducted a full-scale exercise (FSX) with the dual mission of 1) training Disaster Medicine Fellows (DMFs) in exercise design, planning, and execution, and 2) expanding local first responder experience with pediatric casualties in a mixed-method terrorist attack.

Project PUNCH (Preparedness for Uncertain and Novel Chemical Hazards) was planned in two stages. A tabletop exercise in the form of a facilitated discussion was conducted in March 2022 with stakeholders from Fire, Emergency Medical Services (EMS), and the Massachusetts HazMat Team. A FSX simulating a combined blast and chemical attack on a family gathering was held in June 2022 at Anna Maria College in Paxton, MA.

Fire, EMS, HazMat, LifeFlight, local Police, MA State Police, a local Medical Reserve Corps, and over 40 volunteer victims including 16 pediatric volunteers participated in the FSX. The FSX was a two-hour exercise with a simulated explosion and a secondary drone-deployed dummy-opioid aerosol release. This was the first FSX for the Paxton Region since the coronavirus pandemic began. Planning was conducted by the DMFs between January and June 2022 with the aid of Fellowship faculty and local stakeholders following Homeland Security Exercise and Evaluation Program guidelines. Local and Fellowship leadership with Pediatric expertise were engaged to plan pediatric specific considerations, precautions and safety measures. COVID precaution guidelines were followed. These efforts are detailed in the forthcoming field report. Educational guides for toxidromes and triage and resuscitation of pediatric victims were distributed to first responders.

The end outcome was a FSX that trained DMFs in exercise design, planning, and execution, and increased experience of local first responders with the concepts of asymmetric terrorist attacks and comfort with pediatric disaster victims. Multi-agency disaster drills remain an important training tool for preparedness and response to mass casualty events.

Disasters create major strain on energy infrastructure in affected communities. Advances in microgrid technology offer the potential to improve “off-grid” mobile disaster medical response capabilities beyond traditional diesel generation. The Carolinas Medical Center's mobile emergency medical unit (MED-1) Green Project (M1G) is a multi-phase project designed to demonstrate the benefits of integrating distributive generation (DG), high-efficiency batteries, and “smart” energy utilization in support of major out-of-hospital medical response operations.

Carolinas MED-1 is a mobile medical facility composed of a fleet of vehicles and trailers that provides comprehensive medical care capacities to support disaster response and special-event operations. The M1G project partnered with local energy companies to deploy energy analytics and an energy microgrid in support of mobile clinical operations for the 2012 Democratic National Convention (DNC) in Charlotte, North Carolina (USA). Energy use data recorded throughout the DNC were analyzed to create energy utilization models that integrate advanced battery technology, solar photovoltaic (PV), and energy conservation measures (ECM) to improve future disaster response operations.

The generators that supply power for MED-1 have a minimum loading ratio (MLR) of 30 kVA. This means that loads below 30 kW lead to diesel fuel consumption at the same rate as a 30 kW load. Data gathered from the two DNC training and support deployments showed the maximum load of MED-1 to be around 20 kW. This discrepancy in MLR versus actual load leads to significant energy waste. The lack of an energy storage system reduces generator efficiency and limits integration of alternative energy generation strategies. A storage system would also allow for alternative generation sources, such as PV, to be incorporated. Modeling with a 450 kWh battery bank and 13.5 kW PV array showed a 2-fold increase in potential deployment times using the same amount of fuel versus the current conventional system.

The M1G Project demonstrated that the incorporation of a microgrid energy management system and a modern battery system maximize the MED-1 generators’ output. Using a 450 kWh battery bank and 13.5 kW PV array, deployment operations time could be more than doubled before refueling. This marks a dramatic increase in patient care capabilities and has significant public health implications. The results highlight the value of smart-microgrid technology in developing energy independent mobile medical capabilities and expanding cost-effective, high-quality medical response.

McCahillPW , NosteEE , RossmanAJ , CallawayDW . Integration of Energy Analytics and Smart Energy Microgrid into Mobile Medicine Operations for the 2012 Democratic National Convention. Prehosp Disaster Med. 2014;29(6):1-8.

The Emergency Medical Team (EMT) Strategic Advisory Group of the WHO has endorsed the EMT Minimum Data Set (MDS) Daily Reporting Form in 2017 and the revised EMT Minimum Standards of the WHO suggests EMTs report it regularly in case national reporting forms are not available.

This study searched and listed previous use cases of the MDS by reviewing published papers including gray literature and interviews with national authorities, organizations, and experts.

In 2019, the MDS had been activated for the first time in Mozambique during international scale response at the tropical cyclone Idai; also in Japan it was used at the typhoon Faxai/Hagibis response; further in the Independent State of Samoa during the measles outbreak. In 2020, the MDS was used during a COVID-19 mega-cluster incident on the Diamond Princess Cruise Ship in Japan, the tropical cyclone Harold in Vanuatu and the Kumamoto Heavy Rain in Japan. In 2021, the one was used during the Izuyama landslide response in Japan; and the typhoon Rai response in the Philippines. In 2022, it was used during the cyclone Batsirai response in Madagascar; and in Moldova, Poland, and Ukraine to respond to the armed conflict situation in Ukraine.

Many countries are preparing to use the form; in 2022 the Association of SouthEast Asian Nations (ASEAN) has officially endorsed the form as a regional standard form for EMT daily reporting. Military partners also were testing the form, in 2019 forces from eight nations at the 39th Cobra Gold 20 in Thailand used the form for training purposes.

The MDS was used in at least 14 emergencies in nine countries. Mozambique and Japan have published academic literature using the MDS. The use of MDS would strengthen Health Emergency and Disaster Risk Management (H-EDRM) in a data-based manner.

Training in disaster medicine can be partly theoretical but it must include a large practical part. If part of it can be developed through exercises in virtual reality or on a computer, the realization of life-size disaster exercises bringing together all the disciplines is of great help in this learning. Exercises of such magnitude are difficult to carry out in civilian life for reasons of resources and cost. We therefore wanted to develop this disaster medicine course with the three French-speaking civil universities but also with the Royal Military School for the practical part.

Collaboration agreements were established between three civilian universities (ULB, UCLouvain, ULiège) and the Royal Military School. The army thus provides the infrastructures of the Belgian military units to organize the exercises, personnel, means of make-up, vehicles, and security, all free of cost. Coordination meetings before exercises are also organized during the year by the army.

The exercises are organized in complete safety conditions on military fields, isolated from the civilian environment without disturbing the daily functioning of civilians. Access is authorized and organized for the various disciplines (firefighters, police, red cross and other participants). Nearly 100 people (victims, firemen, policemen,...) and 50 vehicles per exercise make the scenario completely believable. Different scenarios are repeated six times to complete the training of 80 students.

The collaboration between civilians and military has made it possible to set up quality training integrating a large part of life-size exercises at no cost and in complete safety. This ends the course by integrating in practice all the knowledge learned during the theoretical part and the virtual exercises.

Police transport (PT) of penetrating trauma patients has the potential to improve survival rates. There are no well-established guidelines for PT of penetrating trauma patients.

This study examines the association between survival rate to hospital discharge of adult penetrating trauma patients and mode of transport (PT versus ground ambulance [GA]).

A retrospective, matched cohort study was conducted using the United States (US) National Trauma Data Bank (NTDB). All adult penetrating injury patients transported by police to trauma centers were identified and matched (one-to-four) to patients transported by GA for analysis. Descriptive analysis was carried out. The patients’ demographic and clinical characteristics were tabulated and stratified by the transport mode.

Out of the 733 patients with penetrating injuries, ground Emergency Medical Services (EMS) transported 513 patients and police transported 220 patients. Most patients were 16-64 years of age with a male (95.6%) and Black/African American race (79.0%) predominance. Firearm-related injuries (68.8%) were the most common mechanism of injury with the majority of injuries involving the body extremities (62.9%). Open wounds were the most common nature of injury (75.7%). The overall survival rate to hospital discharge was similar for patients transported by GA and by police (94.5% versus 92.7%; P = .343).

In this study, patients with penetrating trauma transported by police had similar outcomes to those transported by GA. As such, PT in penetrating trauma appears to be effective. Detailed protocols should be developed to further improve resource utilization and outcomes.

The New South Wales (NSW) Biocontainment Centre (NBC) is the first high-level isolation unit in Australia. This state-wide referral facility, located at Westmead Hospital, Sydney, will provide care for patients with high-consequence infectious diseases (HCIDs), including viral hemorrhagic fevers (VHF). In preparation, a tabletop exercise with key stakeholders was held to introduce and socialize the NBC’s capacity to support NSW’s preparedness for the management of a patient with HCID.

Invitations were provided to key stakeholders within Westmead Hospital (facility executive, emergency and ICU services, security, switchboard); NSW Preparedness and Response Branch; retrieval services; peripheral hospitals; pediatric hospital network; and NSW Public health units (state and district).

The scenario presented was an unwell patient with suspected VHF arriving at a peripheral hospital emergency department.

Discussion during the four-hour long exercise was facilitated with directed questions and injects, and was recorded. Recommendations and key learnings from the exercise and debrief provided opportunities to enhance current response assumptions.

Forty-five people participated both face-to-face and virtually. Participant discussion showed increasing appreciation of patient presentations to any part of the NSW health system and available assistance. Recommendations included: enhanced access to NBC support with a direct “1-800 number”, coordination for communication, treatment, and transport, and if required, deployment of an NBC team to peripheral sites. Areas for future collaborative work were identified.

This exercise successfully achieved collaboration of key stakeholders to develop an updated, comprehensive and robust plan for management of HCID patients within NSW, regardless of their presentation site. It has created an opportunity to brainstorm and optimize how the NBC can interact with other agencies to maximize the NSW HCID response.

Civil emergencies occurring with little warning can quickly produce mass casualties. To develop an Emergency Department’s surge capacity, medical student involvement in the disaster response has been advocated. Duke-NUS Medical School in Singapore is located in proximity to Singapore General Hospital (SGH) and represents an untapped manpower resource. With appropriate training, medical students can be leveraged upon as ready and reasonably qualified manpower.

This review provides a snapshot of the conceptualization and setting up of the Disaster Volunteer Corps (DVC) program. We discuss the overall strategy and benefits to stakeholders, emphasizing the close symbiotic relationship between academia and healthcare services.

Duke-NUS medical students will be recruited to receive training from SGH emergency physicians. The frequency of training will be four times yearly, with ad hoc participation in disaster simulation exercises. A call-tree will be employed for DVC activation. The DVC curriculum includes disaster response principles, HAZMAT, crowd control, marshaling, logistics, psychological support, and basic first aid. Teaching methods include didactic lectures, case discussions, involvement in event medical cover, and participation in disaster simulation exercises and response planning.

To date, there are 10 medical students and four emergency physician faculty volunteers involved in the program. Support is provided by adjunct instructors from nursing, nuclear medicine, social work, and security, for training in decontamination, radiological disasters, psychological first aid, and crowd control measures respectively. Assessment by faculty will be conducted to ensure the quality of training and competency of skills.

The DVC provides a unique way of teaching medical students disaster medicine principles in a hands-on experiential format, while simultaneously enhancing the operational readiness of the hospital in times of disaster. This model of close collaboration between university educational and healthcare services provides a feasible model of structured volunteerism that could be replicated in other similar settings.