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During disasters, public health departments assume the role of maintaining the health of displaced persons. Displaced persons arrive with acute and chronic conditions as well as other risk factors. Descriptions of these conditions may aid future shelter planning efforts.
Methods:
Approximately 4,000 individuals from New Orleans, displaced by Hurricane Katrina, were sheltered in Austin, Texas. A stratified random sample of the population was selected using individual beds as the primary sampling unit. Adults were interviewed about their acute symptoms, chronic diseases, and other risk factors.
Results:
The results indicate a substantial proportion of adults arrived with some symptoms of acute illness (49.8%). A majority of the adults reported living with a chronic condition (59.0%), and the prevalence of some chronic conditions was higher than that of the general population. Also, several factors that could complicate service delivery were prevalent.
Discussion:
Acute illnesses present transmission risks within the shelter. Furthermore, chronic diseases must be managed and may complicate care of acute illnesses. Risks like activity limitation or substance abuse may complicate shelter operations. Defining the potential scope of the illness burden may be used to help public health departments better plan the services they must deliver to displaced populations.
Understanding ambulance utilization patterns is essential to assessing prehospital system capacity and preparedness at the national level.
Objective:
To describe the characteristics of patients transported to US emergency departments (EDs) by ambulance and to determine predictors of ambulance utilization.
Methods:
Data were obtained from the National Hospital Ambulatory Medical Care Survey using mode of arrival, demographic and visit information, ICD-9-CM E and V-codes, and classified reasons for the visit.
Results:
The rates for ED visits of persons conveyed by ambulence were stable between 1997 and 2003, consisting of approximately one in every seven ED visits (14%). In 2003, there were 16.2 million ED visits for which an ambulance was used in the US. However, for patients with mental health visits, nearly one in three ED presentations (31%) arrived by ambulance. Significantly higher rates of ambulance use were associated with: (1) mental health visits; (2) older age; (3) African-Americans; (4) Medicare or self-pay insurance status; (5) urban ED location; (6) US regions outside of the South; (7) presentation between 12 midnight to 0800 hours; (8) injury-related visits; (9) urgent visit status; and/or (10) those resulting in hospital admission. Among mental health patients, older age, self-pay insurance status, urban ED location, regions outside the southern US, and urgent visit classification predicted ambulance use. Ambulance usage within the mental health group was highest for suicide and lowest for mood and anxiety disorder-related visits.
Conclusion:
Reliance on ambulance services varies by age, insurance status, geographic factors, time of day, urgency of visit, subsequent admission status, and type of mental health disorder. Even after controlling for many confounding factors, mental health problems remain an important predictor of ambulance use.
Hurricane Katrina, followed by Hurricane Rita, were some of the most destructive and costliest hurricanes in US history. In addition to causing death and destruction, Hurricanes Katrina, Rita, and Wilma gave rise to an epidemiology of fear.1 Despite the fact that the odds of dying in a hurricane remains low compared to that of motor vehicle crashes, tornadoes, and fires,2–3 the fear of hurricanes was reinforced by disturbing images on television. Often, these images replaced rational thinking. Teachers and public health educators worldwide only had limited materials to educate their students on the risk and risk factors for hurricanes and disasters, demonstrating how poorly the scientific community was prepared to deliver basic scientific facts about hurricanes.
Previous studies have proven the success of the EsophagealTracheal Combitube (ETC) as a primary airway, but not as a rescue airway.
Objective:
The object of this study was to observe success and complication rates of paramedic placement of an ETC as a rescue airway, and to compare success rates with endotracheal tube (ETT) intubation. The primary outcome indicator was placement with successful ventilation. Complication rates, esophageal placement, and return of spontaneous circulation (ROSC) were secondary measures.
Methods:
A retrospective review of the records of patients who had ETC attempts by Emergency Medical Services (EMS) was conducted for a period of three years. Complications were defined a priori. The ETC is used primarily as rescue airway for a failed attempt at an endotracheal tube (ETT) intubation. A control group for ETT placements was drawn from the EMS quality assurance (QA) database for the same period.
Results:
Esophageal-Tracheal Combitube insertion was attempted on 162 patients, of which, 113 (70%) were successful, 46 (28%) failed, and the outcome of three (2%) was not recorded. Inability to place the ETC occurred in 29 (18%) patients, and accounted for 48% (22/46) of failures. The use of the ETC caused dental trauma in one patient, and one placement of the ETC was related to the onset of subcutaneous emphysema. Blood in the ETC from active upper gatrointestinal bleeding occurred in nine patients (6%), and four tubes (3%) became dislodged en route to the hospital. The a priori complication rate was 44/162 (27%). Inability to determine placement of the ETC due to emesis from both ports occurred in 21 cases. Combining these problems with the a priori complications, the overall rate was 40% (65/162). EsophagealTracheal Combitube location was noted in a subset of 90 charts, of which, 76 (84%) were esophageal, and 14 (16%) were tracheal. Thirteen of 126 (10%) patients in cardiac arrest had return of spontaneous circulation (ROSC) in the field after placement of the ETC. An ETT was attempted in 128 control patients, of which, 107 (84%) were successful, 21 (16%) failed (odds ratio (OR) for ETT vs. ETC = 2.1; 95% CI = 1.12–3.86).
Conclusion:
Despite a low ROSC rate, the complication and success rates of ETC are acceptable for a rescue airway device. Tracheal placement of the Combitube is uncommon, but requires fail-safe discrimination. Similar to previous reports, the success ratio for ETT was greater than for the ETC.
The contribution of smoke inhalation to cyanide-attributed morbidity and mortality arguably surpasses all other sources of acute cyanide poisoning. Research establishes that cyanide exposure is: (1) to be expected in those exposed to smoke in closed-space fires; (2) cyanide poisoning is an important cause of incapacitation and death in smoke-inhalation victims; and (3) that cyanide can act independently of, and perhaps synergistically with, carbon monoxide to cause morbidity and mortality. Effective prehospital management of smoke inhalation-associated cyanide poisoning is inhibited by: (1) a lack of awareness of fire smoke as an important cause of cyanide toxicity; (2) the absence of a rapidly returnable diagnostic test to facilitate its recognition; and (3) in the United States, the current unavailability of a cyanide antidote that can be used empirically with confidence outside of hospitals. Addressing the challenges of the prehospital management of smoke inhalation-associated cyanide poisoning entails: (1) enhancing the awareness of the problem among prehospital responders; (2) improving the ability to recognize cyanide poisoning on the basis of signs and symptoms; and (3) expanding the treatment options that are useful in the prehospital setting.
Disaster preparedness is an area of major concern for the medical community that has been reinforced by recent world events. The emergency healthcare system must respond to all types of disasters, whether the incidents occur in urban or rural settings. Although the barriers and challenges are different in the rural setting, common areas of preparedness must be explored.
Problem:
This study sought to answer several questions, including: (1) What are rural emergency medical services (EMS) organizations training for, compared to what they actually have seen during the last two years?; (2) What scale and types of events do they believe they are prepared to cope with?; and (3) What do they feel are priority areas for training and preparedness?
Methods:
Data were gathered through a multi-region survey of 1,801 EMS organizations in the US to describe EMS response experiences during specific incidents as well as the frequency with which these events occur. Respondents were asked a number of questions about local priorities.
Results:
A total of 768 completed surveys were returned (43%). Over the past few years, training for commonly occurring types of crises and emergencies has declined in favor of terrorism preparedness. Many rural EMS organizations reported that events with 10 or fewer victims would overload them. Low priority was placed on interacting with other non-EMS disaster response agencies, and high priority was placed on basic staff training and retention.
Conclusion:
Maintaining viable, rural, emergency response capabilities and developing a community-wide response to natural or man-made events is crucial to mitigate long-term effects of disasters on a local healthcare system. The assessment of preparedness activities accomplished in this study will help to identify common themes to better prioritize preparedness activities and maximize the response capabilities of an EMS organization.
The catamaran HS Sleipner struck a rock and sunk in bad weather and heavy seas on 26 November 1999. Rescue efforts were provided by helicopters and other ships. A total of 68 victims were rescued alive and 16 died, mostly by drowning. Problems were encountered with evacuation, life jackets, and life rafts. Most of those rescued alive suffered from hypothermia. Response times for rescue helicopters should be improved. Emphasis should be placed on correct manifest lists of passengers and crew. Special emphasis must be placed on media relations and cross-boundary issues. Exercises should focus on cooperation and coordination.
The International Programme on Chemical Safety (IPCS)—a cooperative program of the World Health Organization (WHO), the International Labour Organization (ILO), and the United Nations Environment Programme (UNEP)—designates cyanide a priority chemical in relation to the potential impact on human health and the environment. Like other IPCS priority chemicals, cyanide is highly toxic, is a transboundary safety concern, is a target for risk management in multiple countries, is produced in large quantities, has dispersive use, and poses a risk for human exposure (Table 1). Acute exposure to cyanide has caused significant morbidity and mortality in household and industrial accidents, as well as in suicides and attempted genocides, wars, and acts of terrorism. The most common, but perhaps least recognized source of cyanide in cases of acute poisoning is from smoke caused by fires. This review is the product of a collaboration among experts in prehospital emergency medicine, public health and safety, and disaster preparedness. Current understanding of the causes, consequences, and management of cyanide poisoning are described as a potential advancement in antidotal therapy that could transform the provision of prehospital care to cyanide-poisoned victims.
A fire and subsequent explosions occurred in a fireworks warehouse on 13 May 2000. A total of 947 persons were injured and 21 persons died, including four firefighters and one reporter. Communication networks became overloaded and impaired notification chains. The hospital disaster plan was followed, but was proved inadequate. Public information was a high priority. A counselling center was established early and was planned to continue operation for five years. The command function did not perform to expectations. Hospital triage was impaired as many responsible left the triage area. Short-term psychosocial support evolved to long-term programs. Liability issues were examined.
Local health departments are among the first agencies to respond to disasters or other mass emergencies. However, they often lack the ability to handle large-scale events. Plans including locally developed and deployed tools may enhance local response. Simplified cluster sampling methods can be useful in assessing community needs after a sudden-onset, short duration event.
Methods:
Using an adaptation of the methodology used by the World Health Organization Expanded Programme on Immunization (EPI), a Microsoft Access-based application for two-stage cluster sampling of residential addresses in Louisville/Jefferson County Metro, Kentucky was developed. The sampling frame was derived from geographically referenced data on residential addresses and political districts available through the Louisville/Jefferson County Information Consortium (LOJIC). The program randomly selected 30 clusters, defined as election precincts, from within the area of interest, and then, randomly selected 10 residential addresses from each cluster.
The program, called the Rapid Assessment Tools Package (RATP), was tested in terms of accuracy and precision using data on a dichotomous characteristic of residential addresses available from the local tax assessor database. A series of 30 samples were produced and analyzed with respect to their precision and accuracy in estimating the prevalence of the study attribute. Point estimates with 95% confidence intervals were calculated by determining the proportion of the study attribute values in each of the samples and compared with the population proportion. To estimate the design effect, corresponding simple random samples of 300 addresses were taken after each of the 30 cluster samples.
Results:
The sample proportion fell within ±10 absolute percentage points of the true proportion in 80% of the samples. In 93.3% of the samples, the point estimate fell within ±12.5%, and 96.7% fell within ±15%. All of the point estimates fell within ±20% of the true proportion. Estimates of the design effect ranged from 0.926 to 1.436 (mean = 1.157, median = 1.170) for the 30 samples.
Conclusions:
Although prospective evaluation of its performance in field trials or a real emergency is required to confirm its utility, this study suggests that the Rapid Assessment Tools Package, a locally designed and deployed tool, may provide populationbased estimates of community needs or the extent of event-related consequences that are precise enough to serve as the basis for the initial post-event decisions regarding relief efforts.
Massive earthquakes often cause structures to collapse, trapping victims under dense rubble for long periods of time. Commonly, this spurs resource intensive, dangerous, and frustrating attempts to find and extricate live victims. The search and rescue phase usually is maintained for many days beyond the last “save,” potentially diverting critical attention and resources away from the pressing needs of non-trapped survivors and the devastated community. This recurring phenomenon is driven by the often-unanswered question “Can anyone still be alive under there?” The maximum survival time in entrapment is an important issue for responders, yet little formal research has been conducted on this issue. Knowing the maximum survival time in entrapment helps responders: (1) decide whether or not they should continue to assign limited resources to search and rescue activities; (2) assess the safety risks versus the benefits; (3) determine when search and rescue activities no longer are indicated; and (4) time and pace the important transition to community recovery efforts.
Methods:
The time period of 1985–2004 was selected for investigation. Medline and Lexis-Nexis databases were searched for earthquake events that occurred within this timeframe. Medical literature articles providing time-torescue data for victims of earthquakes were identified. Lexis-Nexis reports were scanned to select those with time-to-rescue data for victims of earthquakes. Reports from both databases were examined for information that might contribute to prolonged survival of entrapped individuals.
Results:
A total of 34 different earthquake events met study criteria. Fortyeight medical articles containing time-to-rescue data were identified. Of these, the longest time to rescue was “13–19 days” post-event (secondhand data and the author is not specific). The second longest time to rescue in the medical articles was 8.7 days (209 hours). Twenty-five medical articles report multiple rescues that occurred after two days (48 hours). Media reports describe rescues occurring beyond Day 2 in 18 of 34 earthquakes. Of these, the longest reliably reported survival is 14 days after impact, with the next closest having survived 13 days. The average maximum times reported from these 18 earthquakes was 6.8 days (median = 5.75 days). The event with the most media reports of distinct rescue events was the 1999 Marmara, Turkey earthquake (43 victims). Times range from 0.5 days (12 hours) to 6.2 days (146 hours) for this event. Both databases provide little formal data to develop detailed insight into factors affecting survivability during entrapment.
Conclusions:
A thorough search of the English-language medical literature and media accounts provides a provocative picture of numerous survivors beyond 48 hours of entrapment under rubble, with a few successfully enduring entrapment of 13–14 days. These data are not necessarily applicable to non-earthquake collapsed-structure events. For incident managers and their medical advisors, the study findings and discussion may be useful for postimpact decision-making and in establishing and/or revising incident priorities as the response evolves.
Proper management of mass-casualty incidents (MCIs) relies on triage as a critical component of the disaster plan.
Objective:
The objective of this study was to assess the precision of triage in mass-casualty incidents.
Methods:
The precision of decisions made by two experienced triage officers was examined in two large MCIs. These decisions were compared to the real severity of injury as defined by the Israeli Defence Forces (IDF) classification of severity of injuries and the Injury Severity Score (ISS).
Results:
Two experienced trauma physicians triaged a total of 94 casualties into 77 mild, seven moderate, and 10 severe casualties. Based on the IDF criteria, there were 74 mild, five moderate, and 15 severe casualties. Based on ISS scoring, there were 78 mild (ISS <9), five moderate (9 ≤ISS<16), and 11 severe (ISS < 16) casualties. Of 15 severely injured victims defined by the IDF classification of injury severity, the triage officers identified only seven (47%).
Conclusion:
Primary triage, even when carried out by experienced trauma physicians, can be unreliable in a MCI.
Ecological disasters impact large populations every year, and hundreds of nongovernmental organizations, thousands of aid workers, and billions of dollars are sent in response. Yet, there have been recurring problems with coordination, leading to wasted efforts and funds. The humanitarian response to the December 2004 Earthquake and Tsunami in Asia was one of the largest ever, and coordination problems were apparent.
The coordination processes and attempts at coordination are discussed in this paper. Specific barriers to cooperation are discussed, such as weak leadership, the absence of accountability, the lack of credentialing, the diverse goals of the responding agencies, and the weaknesses in the coordination process itself.
The Tsunami disaster affected several countries in Southeast Asia in December 2004 and killed or affected many tourists, most of them from Europe. Eight Czech citizens died, and about 500 Czechs were seriously mentally traumatized. The psychosocial needs of tourists included: (1) protection; (2) treatment; (3) safety; (4) relief; (5) psychological first aid; (6) connecting with family members; (7) transportation home; (8) information about possible mental reactions to trauma; (9) information about the normality of their reaction; (10) procedural and environmental orientation; (11) reinforcement of personal competencies; and (12) psycho-trauma therapy.
The Ministry of Foreign Affairs of the Czech Republic was in charge of general emergency management. General coordination of psychosocial support was coordinated under the Ministry of Interior of the Czech Republic, which is connected to the Central Crisis Staff of the Czech Government. The major cooperative partners were: the Ministry of Foreign Affairs, the Ministry of Defence, the Ministry of Health, Czech Airlines, psychosocial intervention teams of the Czech Republic, and the Czech Association of Clinical Psychologists.
The main goals of relief workers were: (1) to bring back home the maximum number of Czech citizens; (2) to provide relevant information to the maximum number of affected Czech citizens; (3) to provide relevant information to rescue workers and professionals; and (4) to prepare working psychosocial support regional network.
Major activities of the Ministry of Interior (psychology section) included: (1) establishing a psychological helpline; (2) running a team of psychological assistance (assistance in the Czech airports, psychological monitoring of tourists, crisis intervention, psychological first aid, assistance in the collection of DNA material from relatives); (3) drafting and distributing specific information materials (brochures, leaflets, address lists, printed and electronic instructions); (4) communicating via the media and advertising; and (5) providing analysis and research studies.
Central coordination of psychosocial support has been found as successful in the first phase after the disaster. The plans must be built for preferable cooperation in the psychosocial field in the Czech Republic. Better collaborates with journalists must exist in order to reduce secondary psycho-trauma.There is a need for intensive international cooperation in the psychosocial field and to build the network at the global level.
When the Tsunami struck Asia on 26 December 2004, Aceh, Indonesia suffered more damage than did any other region. After the Tsunami, many humanitarian organizations provided aid in Aceh. For example, the International Committee of the Red Cross (ICRC), along with the Indonesian and Norwegian Red Cross opened a field hospital in Banda Aceh on 16 January 2005. This study describes the illnesses seen in the out-patient department/casualty department (OPD/CD) of the ICRC hospital nine weeks after the Tsunami. It describes the percentage of people seen for problems directly related to the Tsunami, and includes a basic screening for depression and post-traumatic stress disorder (PTSD).
Methods:
A prospective, five-day study was performed from 01–05 March 2005. Patients registering in the ICRC field hospital in Banda Aceh were considered for the study. Data collected included: (1) age; (2) gender; (3) diagnosis in the OPD/CD; and (4) whether or not the problem was related directly to the Tsunami. Seven basic questions were asked to screen for depression and PTSD symptoms.
Results:
Twelve percent of the problems seen in the OPD/CD nine weeks after the Tsunami still were related directly to the Tsunami. Sixty-three percent of patients in the study were male. The medical problems included: (1) urological (19%); (2) digestive (16%); (3) respiratory (12%); and (4) musculoskeletal (12%). Although <2% of patients were diagnosed with a mental health problem, 24% had at least four or more of the seven depression/PTSD symptoms addressed in the study.
Conclusions:
Post-earthquake and post-tsunami health problems and medical needs differ from those found in conflict zones. After the Tsunami, both surgical and primary healthcare teams were needed. Many problems were chronic medical problems, which may be indicative of the lack of healthcare infrastructure before the Tsunami. The findings suggest that mental health issues must be taken into consideration for future planning. The ethical issues of performing research in complex emergencies also need further development at the international level.