Disasters are high-stakes, low-frequency events. Telemedicine may offer a useful adjunct for paramedics performing disaster triage. The objective of this study was to determine the feasibility of telemedicine in disaster triage, and to determine whether telemedicine has an effect on the accuracy of triage or the time needed to perform triage.

This is a feasibility study in which an intervention team of two paramedics used the mobile device Google Glass (Google Inc; Mountain View, California USA) to communicate with an off-site physician disaster expert. The paramedic team triaged simulated disaster victims at the triennial drill of a commercial airport. The simulated victims had preassigned expected triage levels. The physician had an audio-video interface with the paramedic team and was able to observe the victims remotely. A control team of two paramedics performed disaster triage in the usual fashion. Both teams used the SMART Triage System (TSG Associates LLP; Halifax, England), which assigns patients into Red, Yellow, Green, and Black triage categories. The paramedics were video recorded, and their time required to triage was logged. It was determined whether the intervention team and the control team varied regarding accuracy of triage. Finally, the amount of time the intervention team needed to triage patients when telemedicine was used was compared to when that team did not use telemedicine.

The two teams triaged the same 20 patients. There was no significant difference between the two groups in overall triage accuracy (85.7% for the intervention group vs 75.9% for the control group; P = .39). Two patients were triaged with telemedicine. For the intervention group, there was a significant difference in time to triage patients with telemedicine versus those without telemedicine (35.5 seconds; 95% CI, 72.5-143.5 vs 18.5 seconds; 95% CI, 13.4-23.6; P = .041).

There was no increase in triage accuracy when paramedics evaluating disaster victims used telemedicine, and telemedicine required more time than conventional triage. There are a number of obstacles to available technology that, if overcome, might improve the utility of telemedicine in disaster response.

CiceroMX, WalshB, SoladY, WhitfillT, PaesanoG, KimK, BaumCR, ConeDC. Do You See What I See? Insights from Using Google Glass for Disaster Telemedicine Triage. Prehosp Disaster Med. 2015;30(1):1-5.

Surge capacity, or the ability to manage an extraordinary volume of patients, is fundamental for hospital management of mass-casualty incidents. However, quantification of surge capacity is difficult and no universal standard for its measurement has emerged, nor has a standardized statistical method been advocated. As mass-casualty incidents are rare, simulation may represent a viable alternative to measure surge capacity.

The objective of the current study was to develop a statistical method for the quantification of surge capacity using a combination of computer simulation and simple process-control statistical tools. Length-of-stay (LOS) and patient volume (PV) were used as metrics. The use of this method was then demonstrated on a subsequent computer simulation of an emergency department (ED) response to a mass-casualty incident.

In the derivation phase, 357 participants in five countries performed 62 computer simulations of an ED response to a mass-casualty incident. Benchmarks for ED response were derived from these simulations, including LOS and PV metrics for triage, bed assignment, physician assessment, and disposition. In the application phase, 13 students of the European Master in Disaster Medicine (EMDM) program completed the same simulation scenario, and the results were compared to the standards obtained in the derivation phase.

Patient-volume metrics included number of patients to be triaged, assigned to rooms, assessed by a physician, and disposed. Length-of-stay metrics included median time to triage, room assignment, physician assessment, and disposition. Simple graphical methods were used to compare the application phase group to the derived benchmarks using process-control statistical tools. The group in the application phase failed to meet the indicated standard for LOS from admission to disposition decision.

This study demonstrates how simulation software can be used to derive values for objective benchmarks of ED surge capacity using PV and LOS metrics. These objective metrics can then be applied to other simulation groups using simple graphical process-control tools to provide a numeric measure of surge capacity. Repeated use in simulations of actual EDs may represent a potential means of objectively quantifying disaster management surge capacity. It is hoped that the described statistical method, which is simple and reusable, will be useful for investigators in this field to apply to their own research.

FrancJM, IngrassiaPL, VerdeM, ColomboD, Della CorteF. A Simple Graphical Method for Quantification of Disaster Management Surge Capacity Using Computer Simulation and Process-control Tools. Prehosp Disaster Med. 2015;30(1):1-7.

Over the last decades, humanitarian crises have seen a sharp upward trend. Regrettably, physicians involved in humanitarian action have often demonstrated incomplete preparation for these compelling events which have proved to be quite different from their daily work. Responders to these crises have included an unpredictable mix of beginner-level, mid-level, and expert-level providers. The quality of care has varied considerably. The international humanitarian community, in responding to international calls for improved accountability, transparency, coordination, and a registry of professionalized international responders, has recently launched a call for further professionalization within the humanitarian assistance sector, especially among academic-affiliated education and training programs. As anesthetists have been involved traditionally in medical relief operations, and recent disasters have seen a massive engagement of young physicians, the authors conducted, as a first step, a poll among residents in Anesthesia and Critical Care Medicine in Italy to evaluate their interest in participating in competency-based humanitarian assistance education and in training incorporated early in residencies.

The Directors of all the 39 accredited anesthesia/critical care training programs in Italy were contacted and asked to submit a questionnaire to their residents regarding the objectives of the poll study. After acceptance to participate, residents were enrolled and asked to complete a web-based poll.

A total of 29 (74%) of the initial training programs participated in the poll. Out of the 1,362 questionnaires mailed to residents, 924 (68%) were fully completed and returned. Only 63(6.8%) of the respondents voiced prior participation in humanitarian missions, but up to 690 (74.7%) stated they were interested in participating in future humanitarian deployments during their residency that carried over into their professional careers. Countrywide, 896 (97%) favored prior preparation for residents before participating in humanitarian missions, while the need for a specific, formal, professionalization process of the entire humanitarian aid sector was supported by 889 (96.2%).

In Italy, the majority of anesthesia/critical care residents, through a formal poll study, affirmed interest in participating in humanitarian assistance missions and believe that further professionalization within the humanitarian aid sector is required. These results have implications for residency training programs worldwide.

Ripoll GallardoA, IngrassiaPL, RagazzoniL, DjalaliA, CarenzoL, BurkleFMJr, Della CorteF. Professionalization of Anesthesiologists and Critical Care Specialists in Humanitarian Action: A Nationwide Poll Among Italian Residents. Prehosp Disaster Med. 2015;30(1):1-6.

Quantitative measurement of the medical severity following multiple-casualty events (MCEs) is an important goal in disaster medicine. In 1990, de Boer proposed a 13-point, 7-parameter scale called the Disaster Severity Scale (DSS). Parameters include cause, duration, radius, number of casualties, nature of injuries, rescue time, and effect on surrounding community.

This study aimed to examine the reliability and dimensionality (number of salient themes) of de Boer's DSS scale through its application to 144 discrete earthquake events.

A search for earthquake events was conducted via National Oceanic and Atmospheric Administration (NOAA) and US Geological Survey (USGS) databases. Two experts in the field of disaster medicine independently reviewed and assigned scores for parameters that had no data readily available (nature of injuries, rescue time, and effect on surrounding community), and differences were reconciled via consensus. Principle Component Analysis was performed using SPSS Statistics for Windows Version 22.0 (IBM Corp; Armonk, New York USA) to evaluate the reliability and dimensionality of the DSS.

A total of 144 individual earthquakes from 2003 through 2013 were identified and scored. Of 13 points possible, the mean score was 6.04, the mode = 5, minimum = 4, maximum = 11, and standard deviation = 2.23. Three parameters in the DSS had zero variance (ie, the parameter received the same score in all 144 earthquakes). Because of the zero contribution to variance, these three parameters (cause, duration, and radius) were removed to run the statistical analysis. Cronbach's alpha score, a coefficient of internal consistency, for the remaining four parameters was found to be robust at 0.89. Principle Component Analysis showed uni-dimensional characteristics with only one component having an eigenvalue greater than one at 3.17. The 4-parameter DSS, however, suffered from restriction of scoring range on both parameter and scale levels.

Jan de Boer's DSS in its 7-parameter format fails to hold statistically in a dataset of 144 earthquakes subjected to analysis. A modified 4-parameter scale was found to quantitatively assess medical severity more directly, but remains flawed due to range restriction on both individual parameter and scale levels. Further research is needed in the field of disaster metrics to develop a scale that is reliable in its complete set of parameters, capable of better fine discrimination, and uni-dimensional in measurement of the medical severity of MCEs.

BayramJD, ZuabiS, McCordCM, SherakRAG, HsuEB, KelenGD. Disaster Metrics: Evaluation of de Boer's Disaster Severity Scale (DSS) Applied to Earthquakes. Prehosp Disaster Med. 2015;30(1):1-6.

Traditionally, post disaster response activities have focused on immediate trauma and communicable diseases. In developed countries such as Australia, the post disaster risk for communicable disease is low. However, a “disease transition” is now recognized at the population level where noncommunicable diseases (NCDs) are increasingly documented as a post disaster issue. This potentially places an extra burden on health care resources and may have implications for disaster-management systems. With increasing likelihood of major disasters for all sectors of global society, there is a need to ensure that health systems, including public health infrastructure (PHI), can respond properly.

There is limited peer-reviewed literature on the impact of disasters on NCDs. Research is required to better determine both the impact of NCDs post disaster and their impact on PHI and disaster-management systems.

A literature review was used to collect and analyze data on the impact of the index case event, Australia's Severe Tropical Cyclone Yasi (STC Yasi), on PHI and the management of NCDs. The findings were compared with data from other world cyclone events. The databases searched were MEDLINE, CINAHL, Google Scholar, and Google. The date range for the STC Yasi search was January 26, 2011 through May 2, 2013. No time limits were applied to the search from other cyclone events. The variables compared were tropical cyclones and their impacts on PHI and NCDs. The outcome of interest was to identify if there were trends across similar world events and to determine if this could be extrapolated for future crises.

This research showed a tropical cyclone (including a hurricane and typhoon) can impact PHI, for instance, equipment (oxygen, syringes, and medications), services (treatment and care), and clean water availability/access that would impact both the treatment and management of NCDs. The comparison between STC Yasi and worldwide tropical cyclones found the challenges faced were linked closely. These relate to communication, equipment and services, evacuation, medication, planning, and water supplies.

This research demonstrated that a negative trend pattern existed between the impact of STC Yasi and other similar world cyclone events on PHI and the management of NCDs. This research provides an insight for disaster planners to address concerns of people with NCDs. While further research is needed, this study provides an understanding of areas for improvement, specifically enhancing protective PHI and the development of strategies for maintaining treatment and alternative care options, such as maintaining safe water for dialysis patients.

RyanBJ, FranklinRC, BurkleFMJr, WattK, AitkenP, SmithEC, LeggatP. Analyzing the Impact of Severe Tropical Cyclone Yasi on Public Health Infrastructure and the Management of Noncommunicable Diseases. Prehosp Disaster Med. 2015;30(1):1-10.

The most effective dose of prehospital furosemide in acute decompensated heart failure (ADHF) has not yet been identified and concerns of worsening renal function have limited its use.

To assess if administering high-dose furosemide is associated with worsening renal function.

The authors conducted a 2-center chart review for patients who presented via a single Emergency Medical Service (EMS) from June 5, 2009 through May 17, 2013. Inclusion criteria were shortness of breath, primarily coded as ADHF, and the administration of furosemide prior to emergency department (ED) arrival. A total of 331 charts were identified. The primary endpoint was an increase in creatinine (Cr) of more than 0.3 mg/dL from admission to any time during hospital stay. Exploratory endpoints included survival, length-of-stay (LOS), disposition, urine output in the ED, change in BUN/Cr from admission to discharge, and change in Cr from admission to 72 hours and discharge.

When treated as a binary variable, there was no association observed between an increase in Cr of more than 0.3 mg/dL and prehospital furosemide dose. Baseline characteristics found to be associated with dose were included in the logistic regression model. Lowering the dose of prehospital furosemide was associated with higher odds of attaining a 0.3 mg/dL increase in Cr (adjusted OR = 1.49 for a 20 mg decrease; P = .019). There was no association found with any of the exploratory endpoints.

Patients who received higher doses of furosemide prehospitally were less likely to have an increase of greater than 0.3 mg/dL in Cr during the hospital course.

NievesLC, MehrtensGM, PoresN, PickrellC, TanisJ, SattyT, ChuangM, YoungTC, MerlinMA. The Effect of Furosemide Dose Administered in the Out-of-hospital Setting on Renal Function Among Patients with Suspected Acute Decompensated Heart Failure. Prehosp Disaster Med. 2015;30(1):1-8.

The Glasgow Coma Scale (GCS) is widely applied in the emergency setting; it is used to guide trauma triage and for the application of essential interventions such as endotracheal intubation. However, inter-rater reliability of GCS scoring has been shown to be low for inexperienced users, especially for the motor component. Concerns regarding the accuracy and validity of GCS scoring between various types of emergency care providers have been expressed.

The objective of this study was to determine the degree of accuracy of GCS scoring between various emergency care providers within a modern Emergency Medical Services (EMS) system.

This was a prospective observational study of the accuracy of GCS scoring using a convenience sample of various types of emergency medical providers using standardized video vignettes. Ten video vignettes using adults were prepared and scored by two board-certified neurologists. Inter-rater reliability was excellent (Cohen's κ = 1). Subjects viewed the video and then scored each scenario. The scoring of subjects was compared to expert scoring of the two board-certified neurologists.

A total of 217 emergency providers watched 10 video vignettes and provided 2,084 observations of GCS scoring. Overall total GCS scoring accuracy was 33.1% (95% CI, 30.2-36.0). The highest accuracy was observed on the verbal component of the GCS (69.2%; 95% CI, 67.8-70.4). The eye-opening component was the second most accurate (61.2%; 95% CI, 59.5-62.9). The least accurate component was the motor component (59.8%; 95% CI, 58.1-61.5). A small number of subjects (9.2%) assigned GCS scores that do not exist in the GCS scoring system.

Glasgow Coma Scale scoring should not be considered accurate. A more simplified scoring system should be developed and validated.

BledsoeBE, CaseyMJ, FeldmanJ, JohnsonL, DielS, ForredW, GormanC. Glasgow Coma Scale Scoring is Often Inaccurate. Prehosp Disaster Med. 2015;30(1):1-8.

Optimal emergent management of traumatic hemorrhagic shock patients requires a better understanding of treatment provided in the prehospital/Emergency Medical Services (EMS) and emergency department (ED) settings.

Described in this research are the initial clinical status, airway management, fluid and blood infusions, and time course of severely-injured hemorrhagic shock patients in the EMS and ED settings from the diaspirin cross-linked hemoglobin (DCLHb) clinical trial.

Data were analyzed from 17 US trauma centers gathered during a randomized, controlled, single-blinded efficacy trial of a hemoglobin solution (DCLHb) as add-on therapy versus standard therapy.

Among the 98 randomized patients, the mean EMS Glasgow Coma Scale (GCS) was 10.6 (SD = 5.0), the mean EMS revised trauma score (RTS) was 6.3 (SD = 1.9), and the mean injury severity score (ISS) was 31 (SD = 17). Upon arrival to the ED, the GCS was 20% lower (7.8 (SD = 5.3) vs 9.7 (SD = 6.3)) and the RTS was 12% lower (5.3 (SD = 2.0) vs 6.0 (SD = 2.1)) than EMS values in blunt trauma patients (P < .001). By ED disposition, 80% of patients (78/98) were intubated. Rapid sequence intubation (RSI) was utilized in 77% (60/78), most often utilizing succinylcholine (65%) and midazolam (50%). The mean crystalloid volume infused was 4.2 L (SD = 3.4 L), 80% of which was infused within the ED. Emergency department blood transfusion occurred in 62% of patients, with an average transfused volume of 1.2 L (SD = 2.0 L). Blunt trauma patients received 2.1 times more total fluids (7.4 L vs 3.5 L, < .001) and 2.4 times more blood (2.4 L vs 1.0 L, P < .001). The mean time of patients taken from injury site to operating room (OR) was 113 minutes (SD = 87 minutes). Twenty-one (30%) of the 70 patients taken to the OR from the ED were sent within 60 minutes of the estimated injury time. Penetrating trauma patients were taken to the OR 52% sooner than blunt trauma patients (72 minutes vs 149 minutes, P < .001).

Both GCS and RTS decreased prior to ED arrival in blunt trauma patients. Intubation was performed using RSI, and crystalloid infusion of three times the estimated blood loss volume (L) and blood transfusion of the estimated blood loss volume (L) were provided in the EMS and ED settings. Surgical intervention for these trauma patients most often occurred more than one hour from the time of injury. Penetrating trauma patients received surgical intervention more rapidly than those with a blunt trauma mechanism.

SloanEP, KoenigsbergM, WeirWB, ClarkJM, O'ConnorR, OlingerM, CydulkaR. Emergency Resuscitation of Patients Enrolled in the US Diaspirin Cross-linked Hemoglobin (DCLHb) Clinical Efficacy Trial. Prehosp Disaster Med. 2015;30(1):1-8.

Disparities in access to medical care and outcomes of medical treatment related to insurance status are documented. However, little attention has been given to the effect of health care funding status on outcomes in trauma patients.

This study evaluated if adult trauma patients who arrived by air transport to a trauma center had different clinical outcomes based on their health insurance status.

A retrospective analysis was performed of all adult trauma patients arriving by prehospital flight services to a Level I Trauma Center over a 5-year period. Patients were classified as unfunded or funded based on health insurance status. Injury severity scores (ISS) were compared, while the end points evaluated in the study included duration of stay in the intensive care unit (ICU), duration of hospitalization, and mortality.

A total of 1,877 adult patients met inclusion criteria for the study, with 14% (n = 259) classified as unfunded and 86% (n = 1,618) classified as funded. Unfunded patients compared to funded patients had a significantly lower average ISS (12.82 vs 15.56; P < .001) but a significantly higher mortality rate (16.6% vs 10.7%; P < .01) and a 1.54 relative risk of death (95% CI, 1.136-2.098). Neither mean ICU stay (3.44 days vs 4.98 days; P = .264) nor duration of hospitalization (11.18 days vs 13.34 days; P = .382) was significantly different when controlling for ISS.

Unfunded health insurance status is associated with worse outcomes following less significant injury. Further investigation of baseline health disparities for identification and early intervention may improve outcomes. Additionally, these findings may have implications for the health systems of other countries that lack universal health care coverage.

GurienLA, ChesireDJ, KoonceSL, BurnsJBJr. An Evaluation of Trauma Outcomes Related to Insurance Status in Patients Requiring Prehospital Helicopter Transport. Prehosp Disaster Med. 2014;29(6):1-4.

The undertreatment of pediatric pain is a significant concern among families, clinicians, and researchers. Although some have examined prehospital pain management, the deterrents to pediatric analgesia administration by Emergency Medical Services (EMS) have not yet been examined in Canada.

This study describes EMS pain-management practices and prehospital provider comfort treating pediatric pain. It highlights differences in pain management between adults and children and assesses the potential barriers, misconceptions, difficulties, and needs related to provision of pediatric analgesia.

A study-specific survey tool was created and distributed to all Primary Care Paramedics (PCPs) and Advanced Care Paramedics (ACPs) over four mandatory educational seminars in the city of Edmonton (Alberta, Canada) from September through December 2008.

Ninety-four percent (191/202) of EMS personnel for the city of Edmonton completed the survey. The majority of respondents were male (73%, 139/191), aged 26-35 (42%, 80/191), and had been in practice less than 10 years (53%, 101/191). Seventy-four percent (141/191) of those surveyed were ACPs, while 26% (50/191) were PCPs. Although the majority of respondents reported using both pain scales and clinical judgement to assess pain for adults (85%, 162/191) and adolescents (86%, 165/191), children were six times more likely than adults (31%, 59/191 vs 5%, 10/191) to be assessed by clinical judgement alone. Emergency Medical Services personnel felt more comfortable treating adults than children (P < .001), and they were less likely to treat children even if they were experiencing identical types and intensities of pain as adults (all P values <.05) and adolescents (all P values < .05). Twenty-five percent of providers (37/147) assumed pediatric patients required less analgesia due to immature nervous systems. Three major barriers to treating children's pain included limited clinical experience (34%, 37/110), difficulty in communication (24%, 26/110) and inability to assess children's pain accurately (21%, 23/110).

Emergency Medical Services personnel self-report that children's pain is less rigorously measured and treated than adults’ pain. Educational initiatives aimed at increasing clinical exposure to children, as well as further education regarding simple pain measurement tools for use in the field, may help to address identified barriers and discomfort with assessing and treating children.

RahmanA, CurtisS, DeBruyneB, SookramS, ThomsonD, LutzS, AliS. Emergency Medical Services Provider Comfort with Prehospital Analgesia Administration to Children. Prehosp Disaster Med. 2015;30(1):1-6.

Older adults are disproportionately affected by disaster. Frail elders, individuals with chronic diseases, conditions, or disabilities, and those who live in long-term care facilities are especially vulnerable.

The purpose of this integrative review of the literature was to describe the system-wide knowledge and skills that multi-disciplinary health care providers need to provide appropriate care for the elderly during domestic-humanitarian and disaster-relief efforts.

A systematic search protocol was developed in conjunction with a research librarian. Searches of PubMed, CINAHL, and PsycINFO were conducted using terms such as Disaster, Geological Processes, Aged, Disaster Planning, and Vulnerable Populations. Forty-six articles met criteria for inclusion in the review.

Policies and guidance regarding evacuating versus sheltering in place are lacking. Tenets of elderly-focused disaster planning/preparation and clarification of legal and ethical standards of care and liability issues are needed. Functional capacity, capabilities, or impairments, rather than age, should be considered in disaster preparation. Older adults should be included in disaster planning as population-specific experts.

A multifaceted approach to population-specific disaster planning and curriculum development should include consideration of the biophysical and psychosocial aspects of care, ethical and legal issues, logistics, and resources.

JohnsonHL, LingCG, McBeeEC. Multi-disciplinary Care for the Elderly in Disasters: An Integrative Review. Prehosp Disaster Med. 2015;30(1):1-8.

The global burden of cardiovascular mortality is increasing, as is the number of large-scale humanitarian emergencies. The interaction between these phenomena is not well understood. This review aims to clarify the relationship between humanitarian emergencies and cardiovascular morbidity and mortality.

With assistance from a research librarian, electronic databases (PubMed, Scopus, CINAHL, and Global Health) were searched in January 2014. Findings were supplemented by reviewing citations of included trials. Observational studies reporting the effect of natural disasters and conflict events on cardiovascular morbidity and mortality in adults since 1997 were included. Studies without a comparison group were not included. Double-data extraction was utilized to abstract information on acute coronary syndrome (ACS), acute decompensated heart failure (ADHF), and sudden cardiac death (SCD). Review Manager 5.0 (Version 5.2, The Nordic Cochrane Centre; Copenhagen Denmark,) was used to create figures for qualitative synthesis.

The search retrieved 1,697 unique records; 24 studies were included (17 studies of natural disasters and seven studies of conflict). These studies involved 14,583 cardiac events. All studies utilized retrospective designs: four were population-based, 15 were single-center, and five were multicenter studies. Twenty-three studies utilized historical controls in the primary analysis, and one utilized primarily geographical controls.

Conflicts are associated with an increase in long-term morbidity from ACS; the short-term effects of conflict vary by study. Natural disasters exhibit heterogeneous effects, including increased occurrence of ACS, ADHF, and SCD.

In certain settings, humanitarian emergencies are associated with increased cardiac morbidity and mortality that may persist for years following the event. Humanitarian aid organizations should consider morbidity from noncommunicable disease when planning relief and recuperation projects.

HaymanKG, SharmaD, WardlowRDII, SinghS. Burden of Cardiovascular Morbidity and Mortality Following Humanitarian Emergencies: A Systematic Literature Review. Prehosp Disaster Med. 2015;30(1):1-9.

Though many governmental and nongovernmental efforts for disaster prevention have been sought throughout Japan since the Great East Japan Earthquake on March 11, 2011, most of the preparation efforts for disasters have been based more on structural and conventionalized regulations than on scientific and objective grounds.

There has been a lack of scientific knowledge for space utilization for triage posts in disaster drill sessions. This report addresses how participants occupy and make use of the space within a triage post in terms of areas of use and occupied time.

The trajectories of human movement by using Ubiquitous Stereo Vision (USV) cameras during two emergency drill sessions held in 2012 in a large commercial building have been measured. The USV cameras collect each participant's travel distance and the wait time before, during, and after undergoing triage. The correlation between the wait time and the space utilization of patients at a triage post has been analyzed.

In the first session, there were some spaces not entirely used. This was caused largely by a patient who arrived earlier than others and lingered in the middle area, which caused the later arrivals to crowd the entrance area. On the other hand, in the second session, the area was used in a more evenly-distributed manner. This is mainly because the earlier arrivals were guided to the back space of the triage post (ie, the opposite side of the entrance), and the late arrivals were also guided to the front half, which was not occupied by anyone. As a result, the entire space was effectively utilized without crowding the entrance.

This study has shown that this system could measure people's arrival times and the speed of their movements at the triage post, as well as where they are placed until they receive triage. Space utilization can be improved by efficiently planning and controlling the positioning of arriving patients. Based on the results, it has been suggested that for triage operation, it is necessary to efficiently plan and control the placement of patients in order to use strategically limited spatial resources.

OhtaS, YodaI, TakedaM, KuroshimaS, UchidaK, KawaiK, YukiokaT. Evidence-based Effective Triage Operation During Disaster: Application of Human-trajectory Data to Triage Drill Sessions. Prehosp Disaster Med. 2015;30(1):1-8.