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A 25-year-old male developed a traumatic intimo-medial dissection and saccular pseudoaneurysm at the origin of the innominate artery following a motorcycle accident. On physical examination there was no perceivable trauma to the chest. In addition, there were no clinical symptoms that suggested this serious injury. The patient was managed with successful stent-graft placement on an elective basis.
AzarconF, GhalebM. Early Diagnosis and Treatment of a Posttraumatic Pseudoaneurysm/Dissection of the Innominate Artery. Prehosp Disaster Med. 2014;29(1):1-3.
The detonation of a nuclear device in a US city would be catastrophic. Enormous loss of life and injuries would characterize an incident with profound human, political, social, and economic implications. Nevertheless, most responders have not received sufficient training about ionizing radiation, principles of radiation safety, or managing, diagnosing, and treating radiation-related injuries and illnesses. Members throughout the health care delivery system, including medical first responders, hospital first receivers, and health care institution support personnel such as janitors, hospital administrators, and security personnel, lack radiation-related training. This lack of knowledge can lead to failure of these groups to respond appropriately after a nuclear detonation or other major radiation incident and limit the effectiveness of the medical response and recovery effort. Efficacy of the response can be improved by getting each group the information it needs to do its job. This paper proposes a sustainable training strategy for spreading curricula throughout the necessary communities. It classifies the members of the health care delivery system into four tiers and identifies tasks for each tier and the radiation-relevant knowledge needed to perform these tasks. By providing education through additional modules to existing training structures, connecting radioactive contamination control to daily professional practices, and augmenting these systems with just-in-time training, the strategy creates a sustainable mechanism for giving members of the health care community improved ability to respond during a radiological or nuclear crisis, reducing fatalities, mitigating injuries, and improving the resiliency of the community.
BlumethalD, BaderJ, ChristensenD, KoernerJ, CuellarJ, HindsS, CrapoJ, GlassmanES, PotterAB, SingletaryL. A Sustainable Training Strategy for Improving Health Care Following a Catastrophic Radiological or Nuclear Incident. Prehosp Disaster Med. 2014;29(1):80-86.
Conventional prehospital spine-assessment approaches based on low index of suspicion and mechanism of injury (MOI) result in the liberal application of spinal immobilization in trauma patients. A painful distracting injury (DI), such as a suspected hip fracture, historically has been a sufficient condition for immobilization, even in an elderly patient who suffers a simple fall from standing and exhibits no other risk factors for spinal injury. Because the elderly are at increased risk of hip fracture from low-level falls, and are also particularly susceptible to the discomfort and morbidity associated with immobilization, the prevalence of cervical spine (c-spine) fracture in this patient population was examined.
Methods
Hospital billing records were used to identify all cases of traumatic femur fracture in Minnesota (USA) in 2010-2011. Concurrent diagnosis and external cause codes were used to estimate the prevalence of c-spine fracture by age and MOI.
Results
Among 1,394 patients with femur fracture, 23 (1.7%) had a c-spine fracture. When the MOI was a fall from standing or sitting height and the patient age was ≥65, the prevalence dropped to 0.4% (2/565). The prevalence was similar when the definition of hip fracture additionally included pelvis fractures (0.5%; 11/2,441). Eight of the 11 patients with c-spine fracture had diagnosis codes indicative of criteria other than the DI that likely would have resulted in immobilization (eg, head injury and compromised mental status).
Conclusions
C-spine fracture is extremely rare in elderly patients who sustain hip fracture as a result of a low-level fall, and appears to be accompanied frequently by other known predictors of spinal injury besides DI. More research is needed to determine whether conservative use of spinal immobilization may be warranted in elderly patients with hip fracture after low-level falls when the only criteria for immobilization is the distracting hip injury.
BolandLL, SatterleePA, JansenPR. Cervical Spine Fractures in Elderly Patients with Hip Fracture After Low-Level Fall: An Opportunity to Refine Prehospital Spinal Immobilization Guidelines?Prehosp Disaster Med. 2014;29(1):1-4.
The time interval from diagnosis to reperfusion therapy for patients experiencing ST-segment elevation myocardial infarction (STEMI) has a significant impact on morbidity and mortality.
Hypothesis
It is hypothesized that the time required for interfacility patient transfers from a community hospital to a regional percutaneous coronary intervention (PCI) center using an Advanced Life Support (ALS) transfer ambulance service is no different than utilizing the “911” ALS ambulance.
Methods
Quality assurance data collected by a tertiary care center cardiac catheterization program were reviewed retrospectively. Data were collected on all patients with STEMI requiring interfacility transfer from a local community hospital to the tertiary care center's PCI suite, approximately 16 miles away by ground, 12 miles by air. In 2009, transfers of patients with STEMI were redirected to the municipal ALS ambulance service, instead of the hospital's contracted ALS transfer service. Data were collected from January 2007 through May 2013. Temporal data were compared between transports initiated through the contracted ALS ambulance service and the municipal ALS service. Data points included time of initial transport request and time of ambulance arrival to the sending facility and the receiving PCI suite.
Results
During the 4-year study period, 63 patients diagnosed with STEMI and transferred to the receiving hospital's PCI suite were included in this study. Mean times from the transport request to arrival of the ambulance at the sending hospital's emergency department were six minutes (95% CI, 4-7 minutes) via municipal ALS and 13 minutes (95% CI, 9-16 minutes) for the ALS transfer service. The mean times from the ground transport request to arrival at the receiving hospital's PCI suite when utilizing the municipal ALS ambulance and hospital contracted ALS ambulance services were 48 minutes (95% CI, 33-64 minutes) and 56 minutes (95% CI 52-59 minutes), respectively. This eight-minute period represented a 14% (P = .001) reduction in the mean transfer time to the PCI suite for patients transported via the municipal ALS ambulance.
Conclusion
In the appropriate setting, the use of the municipal “911” ALS ambulance service for the interfacility transport of patients with STEMI appears advantageous in reducing door-to-catheterization times.
TennysonJC, QualeMR. Reduction in STEMI Transfer Times Utilizing a Municipal “911” Ambulance Service. Prehosp Disaster Med. 2014;29(1):1-4.
While several reports discuss controversies regarding ambulance diversion from acute care hospitals and the mortality, financial, and resource effects, there is scant literature related to the effect of hospital characteristics.
Hypothesis/Problem
The objective of this study was to describe specific paramedic receiving center characteristics that are associated with ambulance diversion rates in an Emergency Medical Services system.
Methods
A retrospective observational study design was used. The study was performed in a suburban EMS system with 27 paramedic receiving centers studied; one additional hospital present at the beginning of the study period (2000-2008) was excluded due to lack of recent data. Hospital-level and population-level characteristics were gathered, including diversion rate (hours on diversion/total hours open), for-profit status, number of specialty services (including trauma, burn, cardiovascular surgery, renal transplant services, cardiac catheterization capability [both interventional and diagnostic], and burn surgery), average inpatient bed occupancy rate (total patient days/licensed bed days), annual emergency department (ED) volume (patients per year), ED admission rate (percent of ED patients admitted), and percent of patients leaving without being seen. Demographic characteristics included percent of persons in each hospital's immediate census tract below the 100% and 200% poverty lines (each considered separately), and population density within the census tract. Bivariate and regression analyses were performed.
Results
Diversion rates for the 27 centers ranged from 0.3%-14.5% (median 4.5%). Average inpatient bed occupancy rate and presence of specialty services were correlated with an increase in diversion rate; occupancy rate showed a 0.08% increase in diversion hours per 1% increase in occupancy rate (95% CI, 0.01%-0.16%), and hospitals with specialty services had, on average, a 4.1% higher diversion rate than other hospitals (95% CI, 1.6%-6.7%). Other characteristics did not show a statistically significant effect. When a regression was performed, only the presence of specialty services was related to the ambulance diversion rate.
Conclusions
Hospitals in this study providing specialty services were more likely to have higher diversion rates. This may result in increased difficulty getting patients requiring specialty care to centers able to provide the needed level of service. Major limitations include the retrospective nature of the study, as well as reliance on multiple data systems.
KahnC, StrattonS, AndersonC. Characteristics of Hospitals Diverting Ambulances in a California EMS System. Prehosp Disaster Med. 2014;29(1):1-5.
The March 11, 2011 disaster was unparalleled in the disaster history of Japan. There is still enormous effort required in order for Japan to recover from the damage, not only financially, but psychosocially. This paper is a review of the studies that have been undertaken since this disaster, from after the March 11th disaster in 2011 to the end of 2012, and will provide an overview of the disaster-health research literature published during this period.
Methods
The Japanese database Ichushi Ver. 5 was used to review the literature. This database is the most frequently used database in Japanese health-sciences research. The keywords used in the search were “Higashi Nihon Dai-shinsai” (The Great East Japan Earthquake).
Results
A total of 5,889 articles were found. Within this selection, 163 articles were categorized as original research (gencho ronbun). The articles were then sorted and the top four key categories were as follows: medicine (n = 98), mental health (n = 18), nursing (n = 13), and disaster management (n = 10). Additional categories were: nutrition (n = 4), public health (n = 3), radiology, preparedness, and pharmacology (n = 2 for each category). Nine articles appeared with only one category label and were grouped as “others.”
Conclusion
This review provides the current status of disaster-health research following the Great East Japan Earthquake. The research focus over the selected period was greatly directed towards medical considerations, especially vascular conditions and renal dialysis. Considering the compounding factors of the cold temperatures at the time of the disaster, the geography, the extensive dislocation of the population, and the demographics of an aging community, it is noteworthy that the immediate and acute impact of the March 11th disaster was substantial compared with other events and their studies on the impact of disaster on chronic and long-term illness. The complexity of damage caused by the earthquake event and the associated nuclear power plant event, which possibly affected people more psychologically than physically, might also need to be investigated with respect to long term objectives for improving disaster preparedness and management.
KakoM, ArbonP, MitaniS. Disaster Health After The 2011 Great East Japan Earthquake. Prehosp Disaster Med. 2014;29(1):1-6.
Forced separation from one's home may trigger emotional distress. People who remain in their homes may experience emotional distress due to living in a severely damaged environment. These people experience a type of ‘homesickness’ similar to nostalgia because the land around them no longer resembles the home they knew and loved. What they lack is solace or comfort from their home; they long for the home environment to be the way it was before. “Solastalgia” is a term created to describe feelings which arise in people when an environment changes so much that it negatively affects an individual's quality of life. Such changed environments may include drought-stricken areas and open-cut mines. The aim of this article is to describe how solastalgia, originally conceptualized as the result of man-made environmental change, can be similarly applied to the survivors of natural disasters. Using volcanic eruptions as a case example, the authors argue that people who experience a natural disaster are likely to suffer from solastalgia for a number of reasons, which may include the loss of housing, livestock and farmland, and the ongoing danger of living in a disaster-prone area. These losses and fears challenge people's established sense of place and identity and can lead to feelings of helplessness and depression.
WarsiniS, MillsJ, UsherK. Solastalgia: Living With the Environmental Damage Caused By Natural Disasters. Prehosp Disaster Med. 2014:29(1);1-4.
Humanitarian health programs frequently focus on immediate relief and are supply side oriented or donor driven. More emphasis should be placed on long-term development projects that engage local community leaders to ensure sustainable change in health care systems. With the Emergency Medicine Educational Exchange (EMEDEX) International Rescue, Recover, Rebuild initiative in Northeast Haiti as a model, this paper discusses the opportunities and challenges in using community-based development to establish emergency medical systems in resource-limited settings.
BloemMM, BloemCM, RosentsveygJ, ArquillaB. Emergency Medicine Systems Advancement through Community-based Development. Prehosp Disaster Med. 2014;29(1):1-5.
To study the diagnoses of patients presenting to a medical facility within a mass-gathering public event, “The Great New York State Fair” (NYSF) based on chief complaints, diagnoses, and time of arrival. The goal of the study was to assess the need for increased staffing, services, or supplies during certain times of day for an event that gathers approximately 1 million patrons over a 12-day span. Patrons occupy the grounds between the hours of 10 am and 11 pm, while workers and staff are on the grounds around the clock.
Method
Triage data gathered by trained medical students was collected from all of the patients seen during the 2009 NYSF from 12 am to 11:59 pm. Triage information was categorized based on the nature of complaint, physician impression, and time of arrival to assess for trends in the distribution of common chief complaints and diagnoses at a mass-gathering medical care facility.
Results
The early hours of the NYSF were occupied mostly with treatment of minor first aid complaints, while later hours were occupied more commonly by orthopedic complaints. Insect stings were the most frequent complaint throughout the day.
Conclusion
Daytime and evening hours at the fair have a significant number of orthopedic diagnoses and may benefit from specific staff and equipment sufficient to handle these complaints. Stings and minor first aid injuries are also significant and may benefit from adequate stocking of the infirmary for such events. Major medical complaints, including cardiac and neurological complaints, did occur but were a minor part of the total patient population.
NaccaK, ScottJ, GrantW. Diagnosis According to Time of Arrival at “The Great New York State Fair”Prehosp Disaster Med. 2014;29(1):1-3.
During January 2010, a 7.0 magnitude earthquake struck Haiti, resulting in death and destruction for hundreds of thousands of people. This study describes the types of orthopedic procedures performed, the options for patient follow-up, and limitations in obtaining outcomes data in an emergency setting.
Problem
There is not a large body of data that describes larger orthopedic cohorts, especially those focusing on internal fixation surgeries in resource-poor settings in postdisaster regions. This article describes 248 injuries and over 300 procedures carried out in the Médecins Sans Frontières-Orthopedic Centre Paris orthopedic program.
Methods
Surgeries described in this report were limited to orthopedic procedures carried out under general anesthesia for all surgical patients. Exclusion factors included simple fracture reduction, debridement, dressing changes, and removal of hardware. This data was collected using both prospective and retrospective methods; prospective inpatient data were collected using a data collection form designed promptly after the earthquake and retrospective data collection was performed in October 2010.
Results
Of the 264 fractures, 204 were fractures of the major long bones (humerus, radius, femur, tibia). Of these 204 fractures of the major long bones, 34 (16.7%) were upper limb fractures and 170 (83.3%) were lower limb fractures. This cohort demonstrated a large number of open fractures of the lower limb and closed fractures of the upper limb. Fractures were treated according to their location and type. Of the 194 long bone fractures, the most common intervention was external fixation (36.5%) followed by traction (16.7%), nailing (15.1%), amputation (14.6%), and plating (9.9%).
Conclusion
The number of fractures described in this report represents one of the larger orthopedic cohorts of patients treated in a single center in the aftermath of the 2010 earthquake in Haiti. The emergent surgical care described was carried out in difficult conditions, both in the hospital and the greater community. While outcome and complication data were limited, the proportion of patients attending follow-up most likely exceeded expectations and may reflect the importance of the rehabilitation center. This data demonstrates the ability of surgical teams to perform highly-specialized surgeries in a disaster zone, and also reiterates the need for access to essential and emergency surgical programs, which are an essential part of public health in low- and medium-resource settings.
TeicherCL, AlbertiK, PortenK, ElderG, BaronE, HerardP. Médecins Sans Frontières Experience in Orthopedic Surgery in Postearthquake Haiti in 2010. Prehosp Disaster Med. 2014;29(1):1-6.
The need to provide a professionalization process for the humanitarian workforce is well established. Current competency-based curricula provided by existing academically affiliated training centers in North America, the United Kingdom, and the European Union provide a route toward certification. Simulation exercises followed by timely evaluation is one way to mimic the field deployment process, test knowledge of core competences, and ensure that a competent workforce can manage the inevitable emergencies and crises they will face. Through a 2011 field-based exercise that simulated a humanitarian crisis, delivered under the auspices of the World Health Organization (WHO), a competency-based framework and evaluation tool is demonstrated as a model for future training and evaluation of humanitarian providers.
CranmerH, ChanJ, KaydenS, MusaniA, GasquetP, WalkerP, BurkleF, JohnsonK. Development of an Evaluation Framework Suitable for Assessing Humanitarian Workforce Competencies During Crisis Simulation Exercises. Prehosp Disaster Med. 2014;29(1):1-6.
During disasters and complex emergencies, environmental conditions can adversely affect the performance of point-of-care (POC) testing. Knowledge of these conditions can help device developers and operators understand the significance of temperature and humidity limits necessary for use of POC devices. First responders will benefit from improved performance for on-site decision making.
Objective
To create dynamic temperature and humidity profiles that can be used to assess the environmental robustness of POC devices, reagents, and other resources (eg, drugs), and thereby, to improve preparedness.
Methods
Surface temperature and humidity data from the National Climatic Data Center (Asheville, North Carolina USA) was obtained, median hourly temperature and humidity were calculated, and then mathematically stretched profiles were created to include extreme highs and lows. Profiles were created for: (1) Banda Aceh, Indonesia at the time of the 2004 Tsunami; (2) New Orleans, Louisiana USA just before and after Hurricane Katrina made landfall in 2005; (3) Springfield, Massachusetts USA for an ambulance call during the month of January 2009; (4) Port-au-Prince, Haiti following the 2010 earthquake; (5) Sendai, Japan for the March 2011 earthquake and tsunami with comparison to the colder month of January 2011; (6) New York, New York USA after Hurricane Sandy made landfall in 2012; and (7) a 24-hour rescue from Hawaii USA to the Marshall Islands. Profiles were validated by randomly selecting 10 days and determining if (1) temperature and humidity points fell inside and (2) daily variations were encompassed. Mean kinetic temperatures (MKT) were also assessed for each profile.
Results
Profiles accurately modeled conditions during emergency and disaster events and enclosed 100% of maximum and minimum temperature and humidity points. Daily variations also were represented well with 88.6% (62/70) of temperature readings and 71.1% (54/70) of relative humidity readings falling within diurnal patterns. Days not represented well primarily had continuously high humidity. Mean kinetic temperature was useful for severity ranking.
Conclusions
Simulating temperature and humidity conditions clearly reveals operational challenges encountered during disasters and emergencies. Understanding of environmental stresses and MKT leads to insights regarding operational robustness necessary for safe and accurate use of POC devices and reagents. Rescue personnel should understand these principles before performing POC testing in adverse environments.
FergusonWJ, LouieRF, TangCS, Paw UKT, KostGJ. Dynamic Temperature and Humidity Environmental Profiles: Impact for Future Emergency and Disaster Preparedness and Response. Prehosp Disaster Med. 2014;29(1):1-8.
The US Department of Defense continues to deploy military assets for disaster relief and humanitarian actions around the world. These missions, carried out through geographically located Combatant Commands, represent an evolving role the US military is taking in health diplomacy, designed to enhance disaster preparedness and response capability. Oceania is a unique case, with most island nations experiencing “acute-on-chronic” environmental stresses defined by acute disaster events on top of the consequences of climate change. In all Pacific Island nation-states and territories, the symptoms of this process are seen in both short- and long-term health concerns and a deteriorating public health infrastructure. These factors tend to build on each other. To date, the US military's response to Oceania primarily has been to provide short-term humanitarian projects as part of Pacific Command humanitarian civic assistance missions, such as the annual Pacific Partnership, without necessarily improving local capacity or leaving behind relevant risk-reduction strategies. This report describes the assessment and implications on public health of large-scale humanitarian missions conducted by the US Navy in Oceania. Future opportunities will require the Department of Defense and its Combatant Commands to show meaningful strategies to implement ongoing, long-term, humanitarian activities that will build sustainable, host nation health system capacity and partnerships. This report recommends a community-centric approach that would better assist island nations in reducing disaster risk throughout the traditional disaster management cycle and defines a potential and crucial role of Department of Defense's assets and resources to be a more meaningful partner in disaster risk reduction and community capacity building.
ReavesEJ, TerminiM, BurkleFMJr.Reshaping US Navy Pacific Response in Mitigating Disaster Risk in South Pacific Island Nations: Adopting Community-Based Disaster Cycle Management. Prehosp Disaster Med. 2014;29(1):1-9.
Injuries sustained by disaster responders can impede the affected individuals’ ability to perform critical functions and often require the redirection of already scarce resources. Soft-tissue injuries to the hand are commonly experienced by disaster workers and even seemingly mild lacerations can pose the potential for significant complications in such hazard-filled environments. In this report, the authors describe their experience utilizing tissue adhesive to create a functional and effective barrier dressing for a hand injury sustained by a responder at the West, Texas USA fertilizer plant explosion. This technique of wound management allowed the patient to continue performing essential onsite functions for a sustained period following the explosion and the subsequent investigative processes. At the 30-day follow-up, the wound was well healed and without complications. This technique proved to be a valuable method of field expedient wound management and is worthy of consideration in similar future circumstances.
LevyMJ, TangN. Use of Tissue Adhesive as a Field Expedient Barrier Dressing for Hand Wounds in Disaster Responders. Prehosp Disaster Med. 2014;29(1):1-3.
Prehospital endotracheal intubation (ETI) following traumatic brain injury in urban settings is controversial. Studies investigating admission arterial blood gas (ABG) patterns in these instances are scant.
Hypothesis
Outcomes in patients subjected to divergent prehospital airway management options following severe head injury were studied.
Methods
This was a retrospective propensity-matched study in patients with isolated TBI (head Abbreviated Injury Scale (AIS) ≥ 3) and Glasgow Coma Scale (GCS) score of ≤ 8 admitted to a Level 1 urban trauma center from January 1, 2003 through October 31, 2011. Cases that had prehospital ETI were compared to controls subjected to oxygen by mask in a one to three ratio for demographics, mechanism of injury, tachycardia/hypotension, Injury Severity Score, type of intracranial lesion, and all major surgical interventions. Primary outcome was mortality and secondary outcomes included admission gas profile, in-hospital morbidity, ICU length of stay (ICU LOS) and hospital length of stay (HLOS).
Results
Cases (n = 55) and controls (n = 165) had statistically similar prehospital and in-hospital variables after propensity matching. Mortality was significantly higher for the ETI group (69.1% vs 55.2% respectively, P = .011). There was no difference in pH, base deficit, and pCO2 on admission blood gases; however the ETI group had significantly lower pO2 (187 (SD = 14) vs 213 (SD = 13), P = .034). There was a significantly increased incidence of septic shock in the ETI group. Patients subjected to prehospital ETI had a longer HLOS and ICU LOS.
Conclusion
In isolated severe traumatic brain injury, prehospital endotracheal intubation was associated with significantly higher adjusted mortality rate and worsened admission oxygenation. Further prospective validation of these findings is warranted.
KaramanosE, TalvingP, SkiadaD, OsbyM, InabaK, LamL, AlbuzO, DemetriadesD. Is Prehospital Endotracheal Intubation Associated with Improved Outcomes In Isolated Severe Head Injury? A Matched Cohort Analysis. Prehosp Disaster Med. 2013;28(6):1-5.
The initial assessment of critical patients includes prompt identification of life-threatening conditions. Any device or technique that can aid in this process may ultimately save lives. This study examined whether clothing could be removed faster with the use of a hooked cutting device as compared with the commonly-used heavy-duty, blunt-tipped, serrated scissors.
Methods
This study took place in an urban academic emergency department of a Level-1 trauma center. Human patient simulator mannequins were clothed in identical shirts and pants. The time required for clinical personnel to expose the patient using each device was measured. Each of the 50 participants was queried regarding their tactile comfort using each device.
Results
The mean time for shirt removal using scissors was 83 seconds (SD = 55 seconds; 95% CI, 68-99). The mean time for shirt removal using the hook device was 28 seconds (SD = 21 seconds; 95% CI, 22-34). The mean time for pants removal using scissors was 69 seconds (SD = 40 seconds; 95% CI, 56-73). The mean time for pants removal using the hook device was 19 seconds (SD=15 seconds; 95% CI, 15-23).
Conclusions
The hooked device was 69% faster at removing clothing than traditionally-used scissors. Though simple in concept, these implications can be life saving, particularly in conditions of uncontrolled, life-threatening external hemorrhage.
TangN, LevyM, HarrowJ, BinghamN. Use of a Hooked Cutting Device Compared With Scissors for the Emergency Exposure of Critically Ill and Injured Patients. Prehosp Disaster Med. 2013;28(6):1-4.