Major incident preparedness in a post pandemic world: A survey of anaesthetists.

The COVID-19 pandemic profoundly changed anaesthetic and critical care departments across the UK and fulfilled the definition of a major incident for an extended period of time. It is regularly highlighted that individual and organisational readiness for major incident is inconsistent, as is support in the aftermath. Post-pandemic rates of anxiety and PTSD in healthcare staff have significantly increased, but we still have no embedded method of helping to prevent it. Clinical debriefing is an emerging tool with proven improved psychological outcomes for staff following an adverse event. We surveyed 354 anaesthetists of a range of grades and experiences prior to attending a webinar centred on major incident organisation, human factors and clinical debrief. While 73.8% knew where to access their hospital's major incident plan, only 16.8% had been trained in any form of clinical debrief. Only 29% had ever received any formal training in major incident management. It seems that the occurrence of major incidents is no longer a 'once in a career' event. The inconsistencies in training and preparedness shown in our survey highlight opportunities for our workforce to be more agile and subsequently better supported for the future.

Triage in major incidents: development and external validation of novel machine learning-derived primary and secondary triage tools.

BACKGROUND: Major incidents (MIs) are an important cause of death and disability. Triage tools are crucial to identifying priority 1 (P1) patients-those needing time-critical, life-saving interventions. Existing expert opinion-derived tools have limited evidence supporting their use. This study employs machine learning (ML) to develop and validate models for novel primary and secondary triage tools. METHODS: Adults (16+ years) from the UK Trauma Audit and Research Network (TARN) registry (January 2008-December 2017) served as surrogates for MI victims, with P1 patients identified using predefined criteria. The TARN database was split chronologically into model training and testing (70:30) datasets. Input variables included physiological parameters, age, mechanism and anatomical location of injury. Random forest, extreme gradient boosted tree, logistic regression and decision tree models were trained to predict P1 status, and compared with existing tools (Battlefield Casualty Drills (BCD) Triage Sieve, CareFlight, Modified Physiological Triage Tool, MPTT-24, MSTART, National Ambulance Resilience Unit Triage Sieve and RAMP). Primary and secondary candidate models were selected; the latter was externally validated on patients from the UK military's Joint Theatre Trauma Registry (JTTR). RESULTS: Models were internally tested in 57 979 TARN patients. The best existing tool was the BCD Triage Sieve (sensitivity 68.2%, area under the receiver operating curve (AUC) 0.688). Inability to breathe spontaneously, presence of chest injury and mental status were most predictive of P1 status. A decision tree model including these three variables exhibited the best test characteristics (sensitivity 73.0%, AUC 0.782), forming the candidate primary tool. The proposed secondary tool (sensitivity 77.9%, AUC 0.817), applicable via a portable device, includes a fourth variable (injury mechanism). This performed favourably on external validation (sensitivity of 97.6%, AUC 0.778) in 5956 JTTR patients. CONCLUSION: Novel triage tools developed using ML outperform existing tools in a nationally representative trauma population. The proposed primary tool requires external validation prior to consideration for practical use. The secondary tool demonstrates good external validity and may be used to support decision-making by healthcare workers responding to MIs.

The Field's mass shooting: emergency medical services response.

BACKGROUND: Major incidents (MI) happen infrequently in Scandinavia and mass shootings are even less frequently occurring. Case reports and research are called for, as literature is scarce. On 3rd July 2022, a mass shooting took place at the shopping mall Field's in Copenhagen, Denmark. Three people were killed and seven injured by a gunman, firing a rifle inside the mall. A further 21 people suffered minor injuries during the evacuation of the mall. In this case report, we describe the emergency medical services (EMS) incident response and evaluate the EMS´ adherence to the MI management guidelines to identify possible areas of improvement. CASE PRESENTATION: Forty-eight EMS units including five Tactical Emergency Medical Service teams were dispatched to the incident. Four critically injured patients were taken to two trauma hospitals. The deceased patients were declared dead at the scene and remained there for the sake of the investigation. A total of 24 patients with less severe and minor injuries were treated at four different hospitals in connection with the attack. The ambulance resources were inherently limited in the initial phase of the MI, mandating improvisation in medical incident command. Though challenged, Command and Control, Safety, Communication, Assessment, Triage, Treatment, Transport (CSCATTT) principles were followed. CONCLUSIONS: The EMS response generally adhered to national guidelines for MI. The activation of EMS and the hospital preparedness program was relevant. Important findings were communication shortcomings; inherent lack of readily available ambulance resources in the initial critical phase; uncertainty regarding the number of perpetrators; uncertainty regarding number of casualties and social media rumors that unnecessarily hampered and prolonged the response. The incident command had to use non-standard measures to mitigate potential challenges.

Time to Reconsider Analgesia in Mass Casualty Incidents.

The provision of analgesia in mass casualty incidents has traditionally been viewed as low-priority and reserved for later stages of care. Poor pain management is commonplace in trauma victims, and inadequate acute pain management can hinder evacuation efforts and may lead to the development of chronic pain and posttraumatic stress disorder. New, safe, and simple methods for administering quality analgesia have proven to be safe and effective in the prehospital setting and, as such, could easily be implemented into mass casualty incident protocols and allow for analgesia at earlier stages in such incidents, thereby improving patient care.

Tactical leaders' and collaborative organizations' non-technical skills during major road tunnel incidents - An iterative focus group study.

INTRODUCTION: Leadership during major incidents has been described as challenging and dependent on the non-technical skills of leaders. The complex tunnel environment contributes to an even more challenging incident response. Hence, this study aims to identify elements of non-technical skills when leading collaborative road-tunnel incident responses. METHODS: The study was conducted using four focus group discussions with tactical leaders from the rescue services, emergency medical services, police, and collaborative organizations from the emergency dispatch center and road-traffic control center. The data was analyzed using a non-technical skills taxonomy. RESULTS: Twelve non-technical skill elements emerged. Abilities to gather, sort, and proactively share relevant information and dispatch the correct resources were described. Additionally, abilities to prioritize actions and cooperate to establish a shared operational picture were found. Abilities to adjust leadership to the tunnel environment and conditions and assess the severity of the incident to make decisions were also described. CONCLUSION: When managing a road-tunnel incident response, tactical leaders utilizes a range of non-technical skills. The elements of these skills were found to be specific both to the tunnel environment and the collaborative nature of the response. Further studies into and development of these skills are needed to facilitate a timely response and minimize potential risks to personnel or evacuees in future tunnel incident responses.

A method for detailed determination of hospital surge capacity: a prerequisite for optimal preparedness for mass-casualty incidents.

BACKGROUND: Defined goals for hospitals' ability to handle mass-casualty incidents (MCI) are a prerequisite for optimal planning as well as training, and also as base for quality assurance and improvement. This requires methods to test individual hospitals in sufficient detail to numerically determine surge capacity for different components of the hospitals. Few such methods have so far been available. The aim of the present study was with the use of a simulation model well proven and validated for training to determine capacity-limiting factors in a number of hospitals, identify how these factors were related to each other and also possible measures for improvement of capacity. MATERIALS AND METHODS: As simulation tool was used the MACSIM® system, since many years used for training in the international MRMI courses and also successfully used in a pilot study of surge capacity in a major hospital. This study included 6 tests in three different hospitals, in some before and after re-organisation, and in some both during office- and non-office hours. RESULTS: The primary capacity-limiting factor in all hospitals was the capacity to handle severely injured patients (major trauma) in the emergency department. The load of such patients followed in all the tests a characteristic pattern with "peaks" corresponding to ambulances return after re-loading. Already the first peak exceeded the hospitals capacity for major trauma, and the following peaks caused waiting times for such patients leading to preventable mortality according to the patient-data provided by the system. This emphasises the need of an immediate and efficient coordination of the distribution of casualties between hospitals. The load on surgery came in all tests later, permitting either clearing of occupied theatres (office hours) or mobilising staff (non-office hours) sufficient for all casualties requiring immediate surgery. The final capacity-limiting factors in all tests was the access to intensive care, which also limited the capacity for surgery. On a scale 1-10, participating staff evaluated the accuracy of the methodology for test of surge capacity to MD 8 (IQR 2), for improvement of disaster plans to MD 9 (IQR 2) and for simultaneous training to MD 9 (IQR 3). CONCLUSIONS: With a simulation system including patient data with a sufficient degree of detail, it was possible to identify and also numerically determine the critical capacity-limiting factors in the different phases of the hospital response to MCI, to serve as a base for planning, training, quality control and also necessary improvement to rise surge capacity of the individual hospital.

Prehospital Preparedness for Major Incidents in Sweden: A National Survey with Focus on Mass-Casualty Incidents.

INTRODUCTION: Major incidents (MIs) put great demands on the medical response to effectively organize and redistribute resources and personnel, in prehospital care as well as hospital care, and coordinating functions. Studies indicate that regular training and well-established contingency plans are vital for the medical response to MIs. Previous assessments have concluded that Swedish disaster preparedness requires improved organization and coordination. There is currently no method to easily follow-up the preparedness work of the prehospital medical response organizations for MIs in Sweden. PROBLEM: The aim of the study was to assess qualifications and training requirements for central individual roles, to examine frequency and focus of training and simulation, as well as to examine current regional routines for MIs in Sweden. The aim was also to identify, to evaluate, and to investigate areas for improvement in prehospital health care preparedness for MIs in Sweden. METHODS: Descriptive comparative study of Sweden's prehospital organization, planning, education, and training for MIs through a web-based survey sent to all 21 regions in Sweden. The survey included 64 questions and was based on national legislation and guidelines for preparedness and previous investigations of real MIs. RESULTS: A total of 37 answers to the survey were collected representing 17/21 regions (80.9%) from which Regional Management Individuals (RMIs) were selected from 15 regions and used as representative primary responses. The initial routines regarding alarm and establishment of management functions were mainly in-line with national guidelines. Staffing and qualification requirements for certain leadership roles differed substantially between regions. The requirements for the health care staff's knowledge of the contingency plan were generally low and routines for follow-up were often lacking. The frequency of exercises in certain areas were deficient. CONCLUSIONS: The results of the study showed several potential areas for improvement within the prehospital emergency medical preparedness for MIs in Sweden. Methodology and adherence of national guidelines for medical response preparedness differ between regions in Sweden, which motivates recurring assessments. It is possible to use a well-prepared questionnaire study to follow-up and to examine parts of the regional prehospital preparedness work and organization for MIs.

Learning From Simulating Mass Casualty Events: A Systematic Search and a Comprehensive Qualitative Review.

Mass casualty events (MCE) strain available health-care resources requiring extraordinary measures. Simulated exercises are used to improve preparedness. We sought to identify learning points and common themes arising from such exercises in literature. Reporting of action points to improve response plans were investigated. Type of exercises, environments, and departments were also explored. We systematically searched 3 databases and applied our eligibility criteria. Inclusion criteria were in-situ MCE simulations of clinical response to traumatic MCEs, including scene management, prehospital care, and in hospital care. Exclusion criteria were nonmedical response, infectious outbreaks, training courses with self-selecting participants, simulations assessing mechanical tools, and mathematical modeling. A total of 6883 titles were identified and screened. Eighty-three studies were read in full. Twenty-two articles were included. We identified numerous learning points, which were collated and categorized into 11 themes. Fifty-nine percent of the papers reported actions that would be or had been implemented. MCE simulation exercises have been found to improve familiarity and confidence among participants. The 11 themes identified from published exercises overlap with areas of improvement from real events. MCE simulations in the literature appear to focus on carrying out the exercise itself rather than learning points possibly missing opportunities to improve response plans.

New NHS Prehospital Major Incident Triage Tool: from MIMMS to MITT.

Triage is a key principle in the effective management of major incidents and is the process by which patients are prioritised on the basis of their clinical acuity. However, work published over the last decade has demonstrated that existing methods of triage perform poorly when trying to identify patients in need of life-saving interventions. As a result, a review of major incident triage was initiated by NHS England with the remit to determine the optimum way in which to triage patients of all ages in a major incident for the UK. This article describes the output from this review, the changes being undertaken to UK major incident triage and the introduction of the new NHS Major Incident Triage Tool from the Spring of 2023.

Advancing a social identity perspective on interoperability in the emergency services: Evidence from the Pandemic Multi-Agency Response Teams during the UK COVID-19 response.

Previous research shows there are persistent challenges with multi-agency response centring on problems of communication and coordination. The Social Identity Approach provides an important psychological framework for analysing relations within and between groups which can be used to understand why challenges in multi-agency response occur, and what can be done to prevent them re-occurring in the future. To explore this issue, we conducted semi-structured interviews with 14 responders from the Police, and Fire and Rescue Services who were involved in Pandemic Multi-Agency Response Teams (PMART) during the initial months of the COVID-19. These teams responded to suspected COVID-19 deaths in the community. Interviews were analysed using thematic analysis. Results show that responders appeared to share the pre-existing superordinate identity of all being members of the blue-light service. This identity was made salient as a result of responders experiencing positive contact with each other. Responders also shared the situational superordinate identity of PMART which was both created, and then made salient, through positive contact with each other, as well as responders sharing difficult experiences. At the same time though, structural factors such as inequalities in building access and different shift patterns increased the salience of sub-group identities in ways that created conflict between these identities, as well as operational challenges for joint working. This research advances our understanding of multi-agency working from a social identity perspective by providing evidence of a shared social identity at an operational level of emergency response. Practical implications of this research are discussed.

Command, control and communication (C3) during the COVID-19 pandemic; adapting a military framework to crisis response in a tertiary UK critical care centre.

The COVID-19 pandemic of 2020 imposed significant strain on critical care services worldwide. The South London region experienced the largest numbers of critical care admissions in the United Kingdom with King's College Hospital one of the busiest centres. This article outlines, using a descriptive narrative, the significant changes that occurred within King's Critical Care as a result of the pandemic and the decisions that were taken to provide effective co-ordination and control to the expanded service, in part drawing on the military experience of two of the authors. The wider context of crisis and major incident leadership and management is also discussed contrasting different approaches used in civilian and military settings.

Logistic Red Flags in Mass-Casualty Incidents and Disasters: A Problem-Based Approach.

BACKGROUND: Mass-casualty incidents (MCIs) and disasters are characterized by a high heterogeneity of effects and may pose important logistic challenges that could hamper the emergency rescue operations.The main objective of this study was to establish the most frequent logistic challenges (red flags) observed in a series of Italian disasters with a problem-based approach and to verify if the 80-20 rule of the Pareto principle is respected. METHODS: A series of 138 major events from 1944 through 2020 with a Disaster Severity Score (DSS) ≥ four and five or more victims were analyzed for the presence of twelve pre-determined red flags.A Pareto graph was built considering the most frequently observed red flags, and eventual correlations between the number of red flags and the components of the DSS were investigated. RESULTS: Eight out of twelve red flags covered 80% of the events, therefore not respecting the 80-20 rule; the number of red flags showed a low positive correlation with most of the components of the DSS score. The Pareto analysis showed that potential hazards, casualty nest area > 2.5km2, number of victims over 50, evacuation noria over 20km, number of nests > five, need for extrication, complex access to victims, and complex nest development were the most frequently observed red flags. CONCLUSIONS: Logistic problems observed in MCIs and disaster scenarios do not follow the 80-20 Pareto rule; this demands for careful and early evaluation of different logistic red flags to appropriately tailor the rescue response.

Improving mass casualty planning in low resource settings: Médecins Sans Frontières and International Committee of the Red Cross perspective.

Mass casualty events occur on a regular although unpredictable basis within the contexts of both Mèdecins Sans Frontières (MSF) and the International Committee of the Red Cross (ICRC) activities. The frequency of both natural disasters and other mass casualty incidents is increasing with urbanisation and industrialisation, compounded by climate change and conflict. Both organisations have recognised that the historical training focus on full-scale mass casualty simulations has not always been followed through to the resolution of action points and dissemination of learning. Staff training for mass casualty management has been variable. This led MSF and ICRC to develop a multimodal approach to assist development of mass casualty plans and preparedness. Capitalising on our presence in these contexts we are incorporating our experience of quality improvement and change management to complement simulation to 'stress and test' systems. We examine the challenges and share our efforts to improve training of staff in field projects across both MSF and ICRC and discussing future innovations.

Provision of pre-hospital medical care for terrorist attacks.

The delivery of medical care to the severely injured during major incidents and mass casualty events has been a recurring challenge for decades across the world. From events in resource-poor developing countries, through richly funded military conflicts, to the most equipped of developed nations, the provision of rapid medical care to the severely injured during major incidents and mass casualty events has been a priority for healthcare providers. This is often under the most difficult of circumstances.1,2 Whilst mass casualty events are a persistent global challenge, it is clear in developed countries that patients and their families demand and expect a high standard of care from their rescuers, that this care should be delivered rapidly, and this should be of the highest quality possible.3 Whilst there is respect afforded to those who 'run towards danger' during a high-threat situation, first responders are subjected to a high degree of scrutiny for their actions, even when the circumstances they are presented with are considered to be extraordinary.4 Likewise, even for those who are catastrophically injured beyond salvage, society expects the response to be dignified, calculated, and thorough.3.

Mass casualty medicine: time for a 21st century refresh.

Mass casualty events are on the rise globally, as we face increasing pressures from scarcity of resources, population growth, systemic inequalities, geopolitical instabilities, and polarised discourse. Although they are rare events for an individual practitioner, they are going to happen to someone, somewhere, this week, this month, this year. And whilst they are often the last consideration for healthcare systems under constant pressures from daily routine work, individuals, departments, hospitals, and systems have to step up effectively in times of crisis. Failure to do so can lead to suboptimal outcomes for casualties, and even perceived failures can have crippling consequences on staff, families, and communities for years.

Chemical, biological, radiological, and nuclear mass casualty medicine: a review of lessons from the Salisbury and Amesbury Novichok nerve agent incidents.

On March 4, 2018, two casualties collapsed on a park bench in Salisbury, Wiltshire, UK. They were later discovered to have been the victims of an attempted murder using the Soviet-era Novichok class of nerve agent. The casualties, along with three further critically ill patients, were cared for in Salisbury District Hospital's Intensive Care Unit. Before the COVID-19 pandemic, the Salisbury and Amesbury incidents were the longest-running major incidents in the history of the UK National Health Service. This narrative review seeks to reflect on the lessons learned from these chemical incidents, with a particular focus on hospital and local organisational responses.

Pre-hospital critical care at major incidents.

The identification, triage, and extrication of casualties followed by on-scene management and transport to an appropriate hospital after mass casualty incidents can be complicated, delivered to variable standards, and add significant delays to care. An effective pre-hospital pathway can both increase the chances of survival of individual patients and significantly influence the effectiveness of the entire emergency response.

Registered nurses' experience as disaster preparedness coordinators during a major incident: A qualitative study.

AIMS: To explore registered nurses' experiences as disaster preparedness coordinators of hospital incident command groups' during a major incident. DESIGN: A qualitative descriptive design using semi-structured interview. METHODS: This was a qualitative study based on one focus group discussion and six individual follow-up interviews. Participants were registered nurses in their capacity as disaster preparedness coordinators with experience from Major Incident simulations and a real-life Major Incident. The interviews were transcribed verbatim and analysed using content analysis. The COREQ checklist was used for reporting the findings. RESULTS: The analysis of data generated the main category: Expectations, previous experience and uncertainty affect hospital incident command group response during a Major Incident and three categories, (I) Gaining situational awareness (containing two subcategories), (II) Transitioning to management (containing three subcategories) and (III) Actions taken during uncertainty (containing two subcategories).

Understanding the psychological impacts of responding to a terrorist incident.

Background: Responding to a mass casualty event can cause significant distress, even for highly trained medical and emergency services personnel. Objective: The purpose of the study was to understand more about first responders' perspectives about their participation in major incident responses, specifically how and which individual and system factors contributed to their preparedness or may have enabled or hindered their response. The aim of the work was to improve preparedness and response for future incidents. Methods: This study reports a detailed analysis of qualitative interview data from frontline staff who responded to a large mass casualty terrorist incident in the UK in 2017. Data highlighted the psychological distress caused by responding to terrorist events and thus became the focus of further, detailed analysis. Results: Participants (n = 21) articulated in their own words the psychological distress experienced by many of the first responders to the event. Participants reported that they were not prepared to deal with psychological impact associated with this mass casualty terrorist incident and their role in the response, and that follow-up support was inconsistent. Multiple factors were identified as potentially increasing psychological distress. Social support provided by peers and organizational debriefs were identified as two most common support mechanisms. Organizational support was identified as inconsistent. Conclusions: This research contributes to the literature the voices of first responders to UK terrorist incidents, building on existing findings while further contributing unique contextual perspectives. This research reinforces the importance of psychosocial support for those who respond to these tragic incidents, and offers a number of recommendations for organizational preparedness for future events. Abbreviations: A&E: Accident and Emergency; EPRR: Emergency Preparedness, Resilience and Response; ERD: Emergency Response Department; HEPE: Health Emergency Preparedness Exercise; PHE: Public Health England; PHE REGG: Public Health England Research Ethics and Governance Group; MCI: Mass Casualty Incident; NHS: National Health Service.

Antecedentes: Responder a un evento con presencia masiva de víctimas puede causar una angustia psicológica significativa, aún para el personal médico y de emergencias altamente entrenados.Objetivo: El propósito del estudio fue tener una mayor comprensión acerca de la perspectiva de los primeros respondedores sobre su participación en la respuesta a incidentes mayores, específicamente cómo y qué factores individuales y del sistema contribuyeron a su preparación o que pudieron haber habilitado u obstaculizado su respuesta. El objetivo del trabajo fue de mejorar la preparación y respuesta para futuros incidentes.Métodos: Este estudio reporta un análisis detallado de los datos de entrevistas cualitativas realizadas al personal de primera línea que respondieron a un gran incidente terrorista con víctimas masivas en el Reino Unido durante el 2017. Los datos destacaron la angustia psicológica causada por responder a eventos terroristas y, por lo tanto, se convirtieron en el foco de un análisis más detallado.Resultados: Los participantes (n = 21) articularon en sus propias palabras la angustia psicológica experimentada por muchos de los primeros en responder al evento. Los participantes reportaron que no se encontraban preparados para lidiar con el impacto psicológico asociado con este incidente terrorista con víctimas masivas y su rol en la respuesta, y que el soporte durante el seguimiento fue inconsistente. Se identificaron múltiples factores con pueden incrementar la angustia psicológica. El apoyo social proporcionado por los pares y el 'debriefing' organizacional fueron identificados como los dos mecanismos de apoyo más comunes. El apoyo organizacional se identificó como inconsistente.Conclusiones: Esta investigación contribuye a la literatura las voces de los primeros respondedores a los incidentes terroristas del Reino Unido, basándose en los hallazgos existentes y, al mismo tiempo, aporta perspectivas contextuales únicas. Esta investigación refuerza la importancia del apoyo psicosocial para quienes responden a estos trágicos incidentes, y ofrece una serie de recomendaciones para la preparación organizacional para eventos futuros.