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Using High-Fidelity Virtual Reality for Mass-Casualty Incident Training by First Responders – A Systematic Review of the Literature

Published online by Cambridge University Press:  08 February 2024

Sara Heldring*
Affiliation:
Department of Health Promoting Science, Sophiahemmet University, Stockholm, Sweden Falck Ambulance Sweden, Stockholm, Sweden
Maria Jirwe
Affiliation:
Department of Health Sciences, Swedish Red Cross University, Stockholm, Sweden
Jonas Wihlborg
Affiliation:
School of Health and Welfare, Dalarna University, Falun, Sweden
Lukas Berg
Affiliation:
Samariten Ambulance, Stockholm, Sweden
Veronica Lindström
Affiliation:
Department of Health Promoting Science, Sophiahemmet University, Stockholm, Sweden Samariten Ambulance, Stockholm, Sweden Department of Nursing, Umeå University, Umeå, Sweden
*
Correspondence: Sara Heldring Department of Health Promoting Science Sophiahemmet University Box 5605, Lindstedtsvägen 8, SE-114 86 Stockholm, Sweden E-mail: [email protected]
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Abstract

Introduction:

First responders’ training and learning regarding how to handle a mass-casualty incident (MCI) is traditionally based on reading and/or training through computer-based scenarios, or sometimes through live simulations with actors. First responders should practice in realistic environments to narrow the theory-practice gap, and the possibility of repeating the training is important for learning. High-fidelity virtual reality (VR) is a promising tool to use for realistic and repeatable simulation training, but it needs to be further evaluated. The aim of this literature review was to provide a comprehensive description of the use of high-fidelity VR for MCI training by first responders.

Methods:

A systematic integrative literature review was used according to Whittemore and Knafl’s descriptions. Databases investigated were PubMed, CINAHL Complete, Academic Search Ultimate, Web of Science, and ERIC to find papers addressing the targeted outcome. The electronic search strategy identified 797 potential studies. Seventeen studies were deemed eligible for final inclusion.

Results:

Training with VR enables repetition in a way not possible with live simulation, and the realism is similar, yet not as stressful. Virtual reality offers a cost-effective and safe learning environment. The usability of VR depends on the level of immersion, the technology being error-free, and the ease of use.

Conclusions:

This integrative review shows that high-fidelity VR training should not rule out live simulation, but rather serve as a complement. First responders became more confident and prepared for real-life MCIs after training with high-fidelity VR, but efforts should be made to solve the technical issues found in this review to further improve the usability.

Type
Systematic Review
Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution and reproduction, provided the original article is properly cited.
Copyright
© The Author(s), 2024. Published by Cambridge University Press on behalf of World Association for Disaster and Emergency Medicine

Introduction

There is a need to optimize training and learning for emergency professionals to work safely and effectively in disaster situations. This systematic review focuses on first responders (the emergency professionals first entering the scene of a disaster) and their training for disasters with mass casualties. The often-heavy workload of a first responder in a mass-casualty incident (MCI) includes assessment and treatment of the injured, but also overall decision making on how to allocate available resources. Reference Axelsson, Herrera and Bång1,Reference Sanders and McKenna2 Since MCIs are not frequent, in consequence, the first responders do not have the opportunity in their daily work to get experienced in managing these high-demand events. Reference Axelsson, Herrera and Bång1

Today, efforts aiming to increase first responders’ experience and preparedness to manage an MCI include the development of checklists, training, and learning by reading or computer-based scenarios, and sometimes through live simulations with actors. Live simulations are known to be good for training and learning about disasters, Reference Abelsson and Lundberg3 but they are expensive, and many human resources are required to execute them; thus, they are rare.

When learning by reading or training in an environment that differs vastly from real life, the first responder might be unable to transfer the acquired knowledge into practice; in other words, there is a theory-practice gap. Reference Onda4 According to the theory of situated cognition, Reference Onda4 using high-fidelity simulations when training can reduce the theory-practice gap. The situated cognition theory originates from the constructivist theory of learning through experience and promotes clinical competency while strengthening clinical reasoning and reflective thinking skills, Reference Onda4 which are important competencies for first responders. Reference Wihlborg, Edgren, Johansson and Sivberg5 When Kolb Reference Kolb6 explains experiential learning, simulation training is strengthened by the notion that the learner experiences and practices in realistic environments. High-fidelity simulation with realistic scenarios where the learner is exposed to stressful situations is known to develop knowledge, skills, and experience. Reference Yuan, Williams, Fang and Ye7 However, even if high-fidelity simulation is found to create good learning conditions, Reference Abelsson and Lundberg3,Reference Yuan, Williams, Fang and Ye7 the possibility of repeating the simulation is crucial for learning. Reference Yuan, Williams, Fang and Ye7Reference Shin, Park and Kim9

In recent years, new and innovative ways to enable high-fidelity and easily repeatable simulation with virtual reality (VR) have been developed. The use of technical solutions like VR for high-fidelity simulation, and the development of artificial intelligence (AI), have explosively increased during and after the coronavirus disease 2019 (COVID-19) pandemic, with seemingly good learning outcomes, Reference Yuan, Williams, Fang and Ye7 and opens up for new creative possibilities for training.

To involve social, cultural, and physical interactions, it is important to facilitate cognitive, affective, and psychomotor learning. Reference Simulation10Reference Trentini12 All these types of interaction can take place in a high-fidelity VR simulation, and AI enables the learners to interact with eventual avatars, depending on how the scenarios are created and programmed.

Simulation training with VR also provides the possibility to record and review scenarios, which theoretically allows self-correction. This can help first responders to construct their own learning as opposed to passively taken in and built upon pre-existing knowledge, Reference Kolb6 which can support a shift from instruction to person-centered learning. Reference King, Tee, Falconer, Angell, Holley and Mills13 The educator can become a facilitator, with a mission to provide feedback to encourage the first responder to reflect on their performance, which has several pedagogical advantages. Reference Onda4 In addition, by recording the scenarios, objective data can be extracted and used for systematic evaluation (eg, actions taken, time-effectiveness, communication, and clinical reasoning).

However, when searching in the literature, the definition of VR is broad. Some use the term VR when describing computer-based scenarios with a normal 2D screen, steered with a joystick or arrows on the keyboard.The term VR can also be used for more advanced 3D high-fidelity technology, for example with sensors in the hands and an immersive head-mounted display, or a fully immersive environment enclosed by four walls and 3D computer-based imaging that allows the user to step into a virtual world and interact with it. Due to the difference between 2D and 3D, it is not suitable (or possible) to compare them. Therefore, in this review, only the use of a 3D VR technique enabling high-fidelity simulation is included.

Introducing new and innovative ways to enable high-fidelity and repeatable simulation with VR can be seen as a suitable solution for training and learning for MCIs, but it is necessary to synthesize existing knowledge and to identify advantages and disadvantages before implementing it widely in educational and clinical contexts. Therefore, this literature review aimed to provide a comprehensive description of the use of high-fidelity VR for MCI training by first responders.

Methods

As the research area concerning high-fidelity VR and MCI training by first responders is currently the subject of only a limited number of studies, an integrative systematic literature review was used to include findings from diverse research designs. Integrative reviews provide a range of perspectives and enable a more comprehensive understanding of the topic investigated, as opposed to only including studies using one research design. Reference Whittemore and Knafl14 This integrative review was conducted in line with the standards of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement (PRISMA Checklist included as Supplemental Material; available online only). Reference Page, McKenzie and Bossuyt15

Literature Search Strategies

The literature search was finished on March 23, 2023. Databases included were: PubMed (National Center for Biotechnology Information, National Institutes of Health; Bethesda, Maryland USA); CINAHL Complete (EBSCO Information Services; Ipswich, Massachusetts USA); Academic Search Ultimate (EBSCO Information Services; Ipswich, Massachusetts USA); Web of Science (Clarivate Analytics; London, United Kingdom); and ERIC (Institute of Education Sciences; Washington, DC USA). A series of comprehensive searches was carried out combining subject searches and free searches. The following keywords were chosen based on the researcher’s background knowledge of the topic and with support from a university librarian: virtual reality, VR, simulated environment, virtual learning environment, virtual world, 3d environment, immersive simulation AND disaster preparedness, disaster victims, disaster planning, mass casualty incidents, disaster medicine, triage, mass casualties. In addition, manual searches of the included articles’ reference lists were conducted, which led to the inclusion of one more article in the review.

The inclusion criteria were: (1) peer-reviewed studies; (2) studies focusing on high-fidelity/3D VR; and (3) written in English. Exclusion criteria were: (1) studies focusing on 2D VR; (2) studies conducted in intra-hospital settings; and (3) studies older than 15 years, due to the area’s rapid technological development. The search strategy identified 797 potential studies, as shown in Figure 1. The titles were screened independently by the first author to the inclusion/exclusion criteria, and uncertainty was discussed with the other authors until a consensus was reached. In total, 88 abstracts remained after removing duplicates, and the included abstracts were then screened independently by the first and last author to the inclusion/exclusion criteria. Recurring meetings took place to discuss the process, and thus strengthen reliability throughout the selection process. The screening of abstracts resulted in the inclusion of 31 studies. The studies were scrutinized and discussed by the authors until consensus on inclusion was reached. In total, 17 studies were deemed eligible for final inclusion (Figure 1).

Figure 1. PRISMA Flow Diagram.

Data Evaluation

Authenticity, methodological quality, and data relevance were considered in the evaluation process Reference Whittemore and Knafl14 independently by the first and the last authors. The included studies were evaluated according to methodological rigor and risk of bias on a three-level scale (high, moderate, or low) following a checklist usable for both quantitative and qualitative research, Reference Caldwell, Henshaw and Taylor16 and to the relevance of the research question on a two-level scale (high or low); Table 1. Reference Whittemore and Knafl14 None of the studies were excluded based on this evaluation.

Table 1. Included Studies Matrix

Abbreviations: VR, virtual reality; MCI, mass-casualty incident; START, Simple Triage and Rapid Treatment; EM, Emergency Medicine; EMS, Emergency Medical Services; EMT, emergency medical technician; ECG, electrocardiogram.

Data Analysis

The data analysis process followed Whittemore and Knafl’s methodology for integrative reviews Reference Whittemore and Knafl14 and Patton’s descriptions of qualitative analysis. Reference Patton17 To get a thorough understanding of the included studies, each study was read several times. First, extracted data were compared item by item and similar data were coded, categorized, and grouped. The categories were compared to the use of VR for MCI training by first responders. Data were visualized in a spreadsheet. A data comparison was performed by the authors interacting in an iterative process to identify patterns to ensure trustworthiness of the analysis. The search for patterns and the condensation of codes resulted in two categories and eight subcategories.

Characteristics of Studies

The included studies were conducted in the United States (n = 12), Australia (n = 1), Taiwan (n = 1), China (n = 1), Iran (n = 1), and Spain (n = 1). The number of participants in the included studies varied between 12 and 207 (n = 1,159). The participants had different professional backgrounds: nursing students (n = 634), paramedic and emergency medicine students (n = 88), medical students (n = 51), physicians (n = 183), professional firefighters (n = 62), professional paramedics/emergency medical technicians (n = 46), emergency nurses (n = 67), and others (n = 28). Studies using quantitative methods were in the majority (n = 12), but there were also three studies that used qualitative methods and two studies that used mixed methods.

Ethical Issues

The study was conducted aiming for good ethical practice with transparency, accuracy, and avoidance of plagiarism. Reference Wager and Wiffen18 All included studies were viewed as aligned with the Declaration of Helsinki statement of ethical principles for medical research. 19 The declaration has been considered throughout the whole process but did not lead to the exclusion of any studies.

Results

The findings are presented in two categories answering the study aim: to describe the use of high-fidelity VR for MCI training by first responders. The two categories, Learning Aspects and Usability, included eight subcategories in total.

Learning Aspects

This category consisted of several aspects of learning when using VR: self-experienced by first responders, their performance during training, and as post-test outcome after VR training. Effects on learning, effects on knowledge retention, physiological response, and improved preparedness were learning aspects found when using VR for MCI training.

Effects on Learning—First responders described VR as a suitable and effective learning activity that improved their performance. Reference Andreatta, Maslowski and Petty20Reference Shujuan, Mawpin, Meichan, Weijun, Jing and Biru24 The VR training was described to be a suitable way to focus on and practice individual skills and problem-solving abilities. Reference Shujuan, Mawpin, Meichan, Weijun, Jing and Biru24Reference Wilkerson, Avstreih, Gruppen, Beier and Woolliscroft26 A common skill to practice when using VR for MCI training was the triage of victims. In total, there was a small preference for the VR type of training in the triage performance compared to live simulation. Reference Andreatta, Maslowski and Petty20,Reference Vincent, Sherstyuk, Burgess and Connolly21,Reference Mills, Dykstra and Hansen25,Reference Farra, Smith and Gillespie27 A described important benefit of using VR for training and learning was the easiness to repeat the training, Reference Vincent, Sherstyuk, Burgess and Connolly21,Reference Wilkerson, Avstreih, Gruppen, Beier and Woolliscroft26,Reference Ulrich, Farra, Smith and Hodgson28 to control and add variations to the scenarios, Reference Wilkerson, Avstreih, Gruppen, Beier and Woolliscroft26,Reference Ulrich, Farra, Smith and Hodgson28 which also decreased some of the intimidating factors that first responders experienced with live-simulation training. Reference Farra, Smith and Ulrich29 Especially two factors made the first responders feel safe in the learning environment when training with VR: they could make mistakes without hurting the patient and they did not put themselves into danger. Reference Ulrich, Farra, Smith and Hodgson28,Reference Bayouth and Keren30 The VR training supported different learning styles, such as visual learning and hands-on learning. Reference Ulrich, Farra, Smith and Hodgson28,Reference Farra, Smith and Ulrich29 Active learning or being active in the learning process was evident on several immersion levels of VR. Reference Farra, Smith and Ulrich29 During training with VR, the first responders could get feedback on their performance as they proceeded through the simulation and thus become better aware of their own ability. Reference Ulrich, Farra, Smith and Hodgson28,Reference Farra, Smith and Ulrich29

Effects on Knowledge Retention—The way retention of knowledge was gained from training with VR was described as a positive outcome. Reference Koutitas, Smith and Lawrence22,Reference Ulrich, Farra, Smith and Hodgson28,Reference Farra, Smith and Ulrich29,Reference Chang, Lin, Huang, Hsu, Sung and Cheng31 The possibility to be physically active in the VR training made it easier to remember and recall the training, and the hands-on training made it easier to extend the learning to real-life situations. Reference Koutitas, Smith and Lawrence22,Reference Ulrich, Farra, Smith and Hodgson28,Reference Farra, Smith and Ulrich29 The VR training improved muscle and cognitive memory Reference Koutitas, Smith and Lawrence22,Reference Ulrich, Farra, Smith and Hodgson28,Reference Farra, Smith and Ulrich29 and improved performance both in accuracy and time-effectiveness over time, Reference Vincent, Sherstyuk, Burgess and Connolly21 and the improvements of knowledge retention were associated with the number of repetitions. Reference Vincent, Sherstyuk, Burgess and Connolly21,Reference Koutitas, Smith and Lawrence22 The first responders stated that the reason for the better knowledge retention was that VR enabled a combination of muscle memory and visual reinforcement. Reference Ulrich, Farra, Smith and Hodgson28,Reference Farra, Smith and Ulrich29 When combining VR with other learning activities, such as lectures and live simulations, the long-term knowledge retention was even better. Reference Ulrich, Farra, Smith and Hodgson28 No differences were found between VR and different types of control groups when assessing retention of knowledge with pre- and post-tests, Reference Smith, Farra, Ulrich, Hodgson, Nicely and Mickle23,Reference Farra, Smith and Gillespie27,Reference Chang, Lin, Huang, Hsu, Sung and Cheng31,Reference Smith, Farra, Ulrich, Hodgson, Nicely and Matcham32 except in one study where the post-test results were better in the live-simulation group Reference Andreatta, Maslowski and Petty20 and one other study with better scores in the VR group compared to lecture-based education. Reference Behmadi, Asadi, Okhovati and Ershad Sarabi33 Overall, first responders tended to do better immediately after training than when tested five months later. Reference Farra, Smith and Gillespie27

Physiological Response—Realistic scenarios causing stress and a physiological response was described as beneficial for learning. Reference Mills, Dykstra and Hansen25,Reference Wilkerson, Avstreih, Gruppen, Beier and Woolliscroft26 When the VR training was realistic, it raised the anxiety levels and led to an intense experience of the learning environment. Reference Mills, Dykstra and Hansen25,Reference Wilkerson, Avstreih, Gruppen, Beier and Woolliscroft26,Reference Tovar, Zebley and Higgins34 However, compared to live simulation, the perceived amount of physiological work was lower when training with VR. Reference Mills, Dykstra and Hansen25,Reference Ferrandini Price, Escribano Tortosa and Fernandez-Pacheco35 Stress hormone levels measured in saliva Reference Ferrandini Price, Escribano Tortosa and Fernandez-Pacheco35 and the heart rate at the beginning of the training Reference Mills, Dykstra and Hansen25,Reference Tovar, Zebley and Higgins34 were significantly lower when VR training was compared with live-simulation training. However, both heart rate and blood pressure increased during the training scenarios, and in total, there were no differences between VR and live-simulation training. Reference Ferrandini Price, Escribano Tortosa and Fernandez-Pacheco35 Nevertheless, the overall physiological demands were perceived higher with live simulation. Reference Mills, Dykstra and Hansen25,Reference Tovar, Zebley and Higgins34

Improved Preparedness—The first responders became more confident in their overall disaster skills after training with VR, and they felt more prepared for real-life MCIs. Reference Koutitas, Smith and Lawrence22,Reference Shujuan, Mawpin, Meichan, Weijun, Jing and Biru24,Reference Wilkerson, Avstreih, Gruppen, Beier and Woolliscroft26,Reference Farra, Smith and Gillespie27,Reference Farra, Smith and Ulrich29,Reference Chang, Lin, Huang, Hsu, Sung and Cheng31,Reference Lowe, Peng, Winstead-Derlega and Curtis36 They highlighted that they felt more capable of prioritizing resources and identifying high-risk patients Reference Vincent, Sherstyuk, Burgess and Connolly21,Reference Bayouth and Keren30 and felt they could gather enough relevant cues to identify risk situations in general after training. Reference Bayouth and Keren30 Being able to experience chaos and to make mistakes, and to have the mistakes identified and corrected, made the first responders feel more prepared, Reference Wilkerson, Avstreih, Gruppen, Beier and Woolliscroft26 especially when they had the possibility to repeat the training and re-evaluate their own actions. Reference Shujuan, Mawpin, Meichan, Weijun, Jing and Biru24,Reference Wilkerson, Avstreih, Gruppen, Beier and Woolliscroft26,Reference Farra, Smith and Gillespie27

Usability

This category involved different aspects that could affect the usability of VR. The term “usability” describes both user experience and other aspects that influence how suitable VR is as a tool for training, and thereby affecting the use of VR for MCI training. Training with VR could be difficult without tutorials, and technical aspects also affected the VR experience. How realistic and true-to-life VR training is affects the level of user satisfaction.

Tutorials—Tutorials on how to use the VR tool were found to be important prior to scenario training. Reference Mills, Dykstra and Hansen25,Reference Ulrich, Farra, Smith and Hodgson28 The first responders agreed that it did not take long to become familiar with the technique, but an introduction was useful to avoid pushing the wrong buttons, leading to incorrect results. Reference Mills, Dykstra and Hansen25 Tutorials that took 10-15 minutes were deemed adequate before starting the VR training. It took less than five minutes to become comfortable enough with the VR technique and to be able to focus on the decision-making tasks in the scenario. Reference Wilkerson, Avstreih, Gruppen, Beier and Woolliscroft26 First responders that played videogames when they were children stated that they felt comfortable learning how to use VR and that VR was suitable for their generation. Reference Farra, Smith and Ulrich29

Technical Aspects—Technical concerns were distracting and frustrating, and this was the subject that first responders had the most comments about regarding desired improvements. Reference Ulrich, Farra, Smith and Hodgson28 Examples of technical concerns could be that the screen kept freezing and that the VR program got stuck, making the first responder unable to move forward. Reference Farra, Smith and Ulrich29 Moreover, first responders who noticed motion sickness and dizziness from using the head-mounted display stated that this reduced the positive experience of VR. Reference Farra, Smith and Ulrich29 Some first responders had problems identifying safety issues in the VR environment and believed it had technical reasons. Reference Wilkerson, Avstreih, Gruppen, Beier and Woolliscroft26,Reference Bayouth and Keren30 Another technical aspect was how cost-effective VR is; one study showed that cost neutrality appeared when there were 145 participants compared to the costs for live simulation. Reference Mills, Dykstra and Hansen25

Realism—First responders considered VR comparable to live simulation in relation to realism. Reference Mills, Dykstra and Hansen25,Reference Wilkerson, Avstreih, Gruppen, Beier and Woolliscroft26,Reference Farra, Smith and Ulrich29 Training with VR was in some ways more immersive than live-simulation training, but no differences were found regarding mental demand, temporal demand, performance, effort, or frustration between the two training methods. Reference Mills, Dykstra and Hansen25 Some things were perceived as problematic to make realistic with VR (eg, human interaction and emotional immersion), Reference Mills, Dykstra and Hansen25 and it was described that real-life scenarios would have involved more people to interact with, making the workload even more stressful. Reference Wilkerson, Avstreih, Gruppen, Beier and Woolliscroft26 However, some first responders described their ability to focus on MCI skills was facilitated when they were not disturbed by emotions. Reference Mills, Dykstra and Hansen25 Assessing the avatars in the VR training was more difficult than expected, because of noise, radio distractions, and competing demands at the scene, which replicated the challenges of a real MCI. Reference Wilkerson, Avstreih, Gruppen, Beier and Woolliscroft26 The more immersive level of VR, the more realistic. Reference Farra, Smith and Ulrich29 First responders suggested that all tasks you do in real-life scenarios should also be included in the VR training. Reference Ulrich, Farra, Smith and Hodgson28

Satisfaction—First responders preferred VR training over traditional training. Reference Koutitas, Smith and Lawrence22,Reference Mills, Dykstra and Hansen25,Reference Wilkerson, Avstreih, Gruppen, Beier and Woolliscroft26,Reference Behmadi, Asadi, Okhovati and Ershad Sarabi33 Reasons described included satisfaction with the support, problem-solving ability, the possibility to add variations, and to get feedback, Reference Mills, Dykstra and Hansen25,Reference Wilkerson, Avstreih, Gruppen, Beier and Woolliscroft26,Reference Ulrich, Farra, Smith and Hodgson28 but the realism and the possibility to repeat the scenarios several times were prominent reasons. Reference Vincent, Sherstyuk, Burgess and Connolly21,Reference Mills, Dykstra and Hansen25,Reference Wilkerson, Avstreih, Gruppen, Beier and Woolliscroft26,Reference Ulrich, Farra, Smith and Hodgson28 The first responders claimed that they could never practice enough for these high-demand events, but with VR, this could be done more frequently. Reference Wilkerson, Avstreih, Gruppen, Beier and Woolliscroft26 They felt engaged, involved, and immersed when experiencing MCI training with VR. Reference Vincent, Sherstyuk, Burgess and Connolly21,Reference Farra, Smith and Gillespie27Reference Farra, Smith and Ulrich29,Reference Lowe, Peng, Winstead-Derlega and Curtis36 They also rated the VR simulation as relevant for them in their profession as first responders Reference Vincent, Sherstyuk, Burgess and Connolly21 and wished for VR to be more integrated into medical education, especially for MCIs. Reference Lowe, Peng, Winstead-Derlega and Curtis36 According to the first responders in one study, both directed and structured learning and time for free play in the VR scenarios were desired. Reference Ulrich, Farra, Smith and Hodgson28 The first responders repeatedly described the importance of learning being fun, and stated that the quality of the VR was important to enhance this. Reference Farra, Smith and Ulrich29 One weakness with VR training that was pointed out as negative for satisfaction was that some first responders initially had motion sickness. Reference Wilkerson, Avstreih, Gruppen, Beier and Woolliscroft26

Discussion

To the authors’ knowledge, this is the first integrative review including only high-fidelity VR in the context of first responders’ training for MCIs. Since an integrative review methodology was used, Reference Whittemore and Knafl14 including studies using different research designs, it was possible to get a comprehensive understanding with qualitative studies providing an in-depth understanding and quantitative studies providing statistical measures. The overall findings may be seen as giving a broadened understanding of first responders’ use of high-fidelity VR for MCI training. When interpreting the results in the discussion, the theory of situated cognition was used to strengthen the theoretical rigor. Reference Onda4

This integrative review confirms that high-fidelity VR is a promising tool to use for MCI training by first responders. The dominant finding is that using VR enables repetition in a way not possible with live simulation. Reference Vincent, Sherstyuk, Burgess and Connolly21,Reference Wilkerson, Avstreih, Gruppen, Beier and Woolliscroft26,Reference Ulrich, Farra, Smith and Hodgson28,Reference Lowe, Peng, Winstead-Derlega and Curtis36 The positive learning and knowledge retention when using VR for training in MCIs was prominent Reference Koutitas, Smith and Lawrence22,Reference Mills, Dykstra and Hansen25,Reference Wilkerson, Avstreih, Gruppen, Beier and Woolliscroft26,Reference Ulrich, Farra, Smith and Hodgson28,Reference Farra, Smith and Ulrich29,Reference Smith, Farra, Ulrich, Hodgson, Nicely and Matcham32 and learners preferred VR training over other types of training. Reference Koutitas, Smith and Lawrence22,Reference Mills, Dykstra and Hansen25,Reference Wilkerson, Avstreih, Gruppen, Beier and Woolliscroft26 In the light of the theory of situated cognition, the possibility to be physically active, to train and learn in a realistic environment, to add variations to the simulations, and to get computer-generated feedback could be some of the reasons behind the positive outcome. Also, the results promote VR training as a suitable way to focus on and practice individual skills and problem-solving abilities.

However, as first responders need to train in realistic environments to narrow the theory-practice gap, Reference Onda4 the continuous need for live simulation should not be under-estimated. Even if first responders felt that high-fidelity VR was comparable to live simulation in realism, Reference Mills, Dykstra and Hansen25,Reference Wilkerson, Avstreih, Gruppen, Beier and Woolliscroft26,Reference Farra, Smith and Ulrich29 physiological responses and stress levels were perceived to be higher with live simulation than with VR. Reference Mills, Dykstra and Hansen25,Reference Ferrandini Price, Escribano Tortosa and Fernandez-Pacheco35 The theory of situated cognition argues that psychomotor involvement is an important factor for learning. Reference Onda4 Hence, there is a risk that the first responders might be less able to transfer acquired knowledge from VR training into practice. If so, the use of VR should not rule out live simulation of MCIs, but rather should be seen as a complement. However, the effect on physiological response should be interpreted with caution, as VR technology is constantly developing and ought to be more immersive soon. When the VR technology improves, it could potentially play a larger part in stress management training to enable first responders to better manage MCI-related stressors and mitigate the negative effects of high-stress exposures.

In the wake of the COVID-19 pandemic, and the rapid development of AI, the interest in technical solutions for alternative teaching methods will probably increase the use of VR even more. The results of this review show that the more immersive level of VR, the more appreciated, Reference Farra, Smith and Ulrich29 which indicates better outcomes of VR with improved techniques. However, it is important to keep in mind that advanced technique is no guarantee of sufficient learning and knowledge retention. The VR training should include a pedagogically stringent curriculum reflective of its learning objectives to ensure positive learning outcomes. Reference Sjölin, Lindström, Hult, Ringsted and Kurland37,Reference Sjölin, Lindström, Hult, Ringsted and Kurland38 If the VR training is not well-planned, composed, and executed, the learner might not be able to learn – no matter how advanced and immersive the VR technique. Another concern about using VR is the technical problems users find distracting and frustrating. Reference Ulrich, Farra, Smith and Hodgson28 Furthermore, the motion sickness and dizziness that some first responders experienced when using the VR system Reference Farra, Smith and Ulrich29 could be a barrier to implementation. Efforts should be made to solve these technical issues to reduce usability problems. As the VR technique is improving, it will likely cost less in the future, even though this review indicates that VR is already relatively cost-effective once the VR program is developed. Reference Mills, Dykstra and Hansen25 In this review, no studies considered the possibility for several first responders to simultaneously interact in the VR simulation, something that is technically possible today, which could enable more social and cultural learning opportunities, as emphasized in the theory of situated cognition. Reference Onda4

Another result in this review is that training with VR offers a safe learning environment. Reference Ulrich, Farra, Smith and Hodgson28,Reference Bayouth and Keren30 If first responders can make mistakes without hurting the patients, and without putting themselves in danger during training, this could potentially promote edgier decision making and enable courage to test creative solutions. More research is needed to further explore first responders’ decision making during MCIs, and if VR could be a suitable tool to use for systematic evaluation. The on-going technological developments and advancements with VR have the potential to provide and develop a more person-centered way of learning and training Reference King, Tee, Falconer, Angell, Holley and Mills13 on how to handle MCIs, and this needs to be evaluated further. Finally, VR provides a viable research tool for examining MCI training, as well as a platform to test learning, knowledge retention, and accuracy of performance, and to compare different MCI systems. It also provides a flexible, consistent, on-demand training method that is both stable and repeatable and is a promising tool for systematic development of protocols and performance standards for MCIs in the future.

Limitations

A limitation of this review is that there were no high-level methodological papers included. Moreover, one could argue about the difficulty of drawing conclusions based on the limited number of studies available. However, the research area is young, and with new and promising techniques that many are eager to implement, there is an urgent need to review existing knowledge and to identify new areas of interest for research and development.

Conclusions

This integrative review shows that an argument for using VR for MCI training is that VR scenarios are easy to repeat. Training for MCIs with VR made first responders feel more confident and prepared for real-life MCIs. The realism that VR entails is like live simulations, but the physiological demands and stress levels are not. This disparity between real-life and VR can lead to first responders not being able to transfer their obtained knowledge into practice. If this limitation cannot be solved by better techniques, the use of VR should not fully replace live simulations, but rather should complement them. Training with VR means a safe and controlled learning environment where first responders can make mistakes, correct those mistakes in real-time, self-reflect, and learn from the mistakes without fear of compromising safety. Virtual reality can be more cost-effective than live-simulation training and efforts should be made to solve the technical issues found in this review to further improve the usability of VR for MCI training in the future.

Conflicts of interest/funding

No external funding. The first author received financial support from her employers Sophiahemmet University & Falck Sweden A/S. No conflicts of interest declared.

Authorship Contribution

Sara Heldring: conceptualization; methodology, analysis, investigation; writing original draft, review, and editing. Maria Jirwe: conceptualization; methodology, analysis, and review. Jonas Wihlborg: conceptualization, methodology, and review. Lukas Berg: conceptualization and review. Veronica Lindström: conceptualization; methodology, analysis, and review. All authors approved the final manuscript.

Supplementary Materials

To view supplementary material for this article, please visit https://doi.org/10.1017/S1049023X24000049

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Figure 0

Figure 1. PRISMA Flow Diagram.

Figure 1

Table 1. Included Studies Matrix

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