A medical disaster response to reduce immediate mortality after an earthquake

Potential roles of military-specific response to natural disasters -- analysis of the rapid deployment of a mobile surgical team to the 2007 Peruvian earthquake

The August 2007 earthquake in Peru resulted in the loss of critical health infrastructure and resource capacity. A regionally located United States Military Mobile Surgical Team was deployed and operational within 48 hours. However, a post-mission analysis confirmed a low yield from the military surgical resource. The experience of the team suggests that non-surgical medical, transportation, and logistical resources filled essential gaps in health assessment, evacuation, and essential primary care in an otherwise resource-poor surge response capability. Due to an absence of outcomes data, the true effect of the mission on population health remains unknown. Militaries should focus their disaster response efforts on employment of logistics, primary medical care, and transportation/evacuation. Future response strategies should be evidence-based and incorporate a means of quantifying outcomes.

Dentists' role in treating facial injuries sustained in the 2008 earthquake in China: how dental professionals can contribute to emergency response

BACKGROUND

A major earthquake struck Sichuan province, China, on May 12, 2008, and the authors were involved in the medical response to the disaster in Jiangyou City, an area hard-hit by the quake. In this article, they analyze data about the earthquake-related facial injuries and assess dentistry's role in treating them.

METHODS

This descriptive study included review of medical records for 4,582 patients with earthquake-related trauma at eight hospitals in Jiangyou, a city severely affected by the earthquake, for the day of the disaster and the 14 days immediately afterward.

RESULTS

Of the 4,582 patients, 408 (8.9 percent) sustained a total of 482 facial injuries. The dental team treated patients with facial injuries and others who needed care.

CONCLUSIONS

Facial injuries constitute a significant portion of earthquake-related trauma, and dentists therefore are an important part of the medical team that deals with such trauma. Dentists are a reliable force in the medical response to earthquakes and other disasters.

CLINICAL IMPLICATIONS

The dental team should play an important role in disaster response. Establishing oral and maxillofacial surgeon (OMS)/dentist reserves and active leagues that use OMSs' and general dentists' offices as bases can help improve disaster response.

Does START triage work? An outcomes assessment after a disaster

STUDY OBJECTIVE

The mass casualty triage system known as simple triage and rapid treatment (START) has been widely used in the United States since the 1980s. However, no outcomes assessment has been conducted after a disaster to determine whether assigned triage levels match patients' actual clinical status. Researchers hypothesize that START achieves at least 90% sensitivity and specificity for each triage level and ensures that the most critical patients are transported first to area hospitals.

METHODS

The performance of START was evaluated at a train crash disaster in 2003. Patient field triage categories and scene times were obtained from county reports. Patient medical records were then reviewed at all receiving hospitals. Victim arrival times were obtained and correct triage categories determined a priori using a combination of the modified Baxt criteria and hospital admission. Field and outcomes-based triage categories were compared, defining the appropriateness of each triage assignment.

RESULTS

Investigators reviewed 148 records at 14 receiving hospitals. Field triage designations comprised 22 red (immediate), 68 yellow (delayed), and 58 green (minor) patients. Outcomes-based designations found 2 red, 26 yellow, and 120 green patients. Seventy-nine patients were overtriaged, 3 were undertriaged, and 66 patients' outcomes matched their triage level. No triage level met both the 90% sensitivity and 90% specificity requirement set forth in the hypothesis, although red was 100% sensitive (95% confidence interval [CI] 16% to 100%) and green was 89.3% specific (95% CI 72% to 98%). The Obuchowski statistic was 0.81, meaning that victims from a higher-acuity outcome group had an 81% chance of assignment to a higher-acuity triage category. The median arrival time for red patients was more than 1 hour earlier than the other patients.

CONCLUSION

This analysis demonstrates poor agreement between triage levels assigned by START at a train crash and a priori outcomes criteria for each level. START ensured acceptable levels of undertriage (100% red sensitivity and 89% green specificity) but incorporated a substantial amount of overtriage. START proved useful in prioritizing transport of the most critical patients to area hospitals first.

Impact of public health emergencies on modern disaster taxonomy, planning, and response

Current disaster taxonomy describes diversity, distinguishing characteristics, and common relations in disaster event classifications. The impact of compromised public health infrastructure and systems on health consequences defines and greatly influences the manner in which disasters are observed, planned for, and managed, especially those that are geographically widespread, population dense, and prolonged. What may first result in direct injuries and death may rapidly change to excess indirect illness and subsequent death as essential public health resources are destroyed, deteriorate, or are systematically denied to vulnerable populations. Public health and public health infrastructure and systems in developed and developing countries must be seen as strategic and security issues that deserve international public health resource monitoring attention from disaster managers, urban planners, the global humanitarian community, World Health Organization authorities, and participating parties to war and conflict. We posit here that disaster frameworks be reformed to emphasize and clarify the relation of public health emergencies and modern disasters.

Treatment management in disaster: a review of the Bam earthquake experience

In the early morning of 26 December 2003, Bam, an old city in southeastern Iran, was devastated by an earthquake measuring 6.6 on the Richter scale. Managing such situations always brings about many problems. In the case of the Bam Earthquake, two of the most serious problems were rescue operations and provision of appropriate treatment within a short period of time. By conducting an opinion survey, this study aims to assess different aspects of treatment management, including personnel, the transfer of the injured, equipment, facilities, and treatment planning. Questionnaires containing open questions regarding the management of treatment at five levels were prepared. Those engaged in treatment at different levels, including physicians, treatment workers, military personnel, and executives, were questioned. Several problems were revealed concerning the composition of the treatment forces dispatched, into the region, distribution of the tasks among treatment workers, and the transferring of equipment, and facilities. The most significant problem was a lack of coordination among the organizations responsible for the management of the disaster. A comprehensive disaster plan is required if prompt handling of mass-casualty incidents and coordinating the management of such large-scale disasters are to be ensured.

Earthquakes and trauma: review of triage and injury-specific, immediate care

Earthquakes present a major threat to mankind. Increasing knowledge about geophysical interactions, progressing architectural technology, and improved disaster management algorithms have rendered modern populations less susceptible to earthquakes. Nevertheless, the mass casualties resulting from earthquakes in Great Kanto (Japan), Ancash (Peru), Tangshan (China), Guatemala, Armenia, and Izmit (Turkey) or the recent earthquakes in Bhuj (India), Bam (Iran), Sumatra (Indonesia) and Kashmir (Pakistan) indicate the devastating effect earthquakes can have on both individual and population health. Appropriate preparation and implementation of crisis management algorithms are of utmost importance to ensure a large-scale medical-aid response is readily available following a devastating event. In particular, efficient triage is vital to optimize the use of limited medical resources and to effectively mobilize these resources so as to maximize patient salvage. However, the main priorities of disaster rescue teams are the rescue and provision of emergency care for physical trauma. Furthermore, the establishment of transport evacuation corridors, a feature often neglected, is essential in order to provide the casualties with a chance for survival. The optimal management of victims under such settings is discussed, addressing injuries of the body and psyche by means of simple diagnostic and therapeutic procedures globally applicable and available.

Organizational characteristics of the austere intensive care unit: the evolution of military trauma and critical care medicine; applications for civilian medical care systems

Critical care in the U.S. military has significantly evolved in the last decade. More recently, the U.S. military has implemented organizational changes, including the use of multidisciplinary teams in austere environments to improve outcomes in severely injured polytrauma combat patients. Specifically, organizational changes in combat support hospitals located in combat zones during Operation Iraqi Freedom have led to decreased intensive care unit mortality and length of stay as well as resource use. These changes were implemented without increases in logistic support or the addition of highly technologic equipment. The mechanism for improvement in mortality is likely attributable to the adherence of basic critical care medicine fundamentals. This intensivist-directed team model provides sophisticated critical care even in the most austere environments. To optimize critically injured patients' outcomes, intensive care organizational models similar to the U.S. military, described in this article, can possibly be adapted to those of civilian care during disaster management to meet the challenges of emergency mass critical care.

Spinal cord injury management and rehabilitation: highlights and shortcomings from the 2005 earthquake in Pakistan

Recent natural disasters have highlighted the lack of planning for rehabilitation and disability management in emergencies. A review of our experience with spinal cord injury (SCI) after the Pakistan earthquake of 2005, plus a review of other literature about SCI after natural disasters, shows that large numbers of people will incur SCIs in such disasters. The epidemiology of SCI after earthquakes has not been well studied and may vary with location, severity of the disaster, available resources, the expertise of the health care providers, and cultural issues. A lack of preparedness means that evacuation protocols, clinician training, dedicated acute management and rehabilitation facilities, specialist equipment, and supplies are not in place. The dearth of rehabilitation medicine specialists in developing regions further complicates the issue, as does the lack of national spinal cord registries. In our 3 makeshift SCI units, however, which are staffed by specialists and residents in rehabilitation medicine, there were no deaths, few complications, and a successful discharge for most patients. Technical concerns include air evacuation, early spinal fixation, aggressive management to optimize bowel and bladder care, and provision of appropriate skin care. Discharge planning requires substantial external support because SCI victims must often return to devastated communities and face changed vocational and social possibilities. Successful rehabilitation of victims of the Pakistan earthquake has important implications. The experience suggests that dedicated SCI centers are essential after a natural disaster. Furthermore, government and aid agency disaster planners are advised to consult with rehabilitation specialists experienced in SCI medicine in planning for the inevitable large number of people who will have disabilities after a natural disaster.

Mass casualty respiratory failure

PURPOSE OF REVIEW

The severe acute respiratory syndrome epidemic of 2002-2003, recent natural catastrophes, burgeoning concerns regarding intentional catastrophes, and the looming threat of an influenza pandemic have focused attention on large-scale, survivable respiratory failure. In this article, we review appropriate medical equipment, treatment space, and strategies to augment health professional staff in response to a massive increase in need for sustained critical care.

RECENT FINDINGS

There is insufficient modern healthcare experience with mass casualty respiratory failure to develop evidence-based preparedness efforts. For this reason, initial efforts to augment critical care capability in response to disasters have relied on extrapolation from the routine critical care knowledge base, military medicine, critical care transport, and expert opinion. We review recently published documents on augmenting supplies of positive pressure ventilation equipment, ongoing projects for increasing health professional staff, and infection control issues during epidemics.

SUMMARY

Mass casualty respiratory failure remains a largely unstudied field, but we believe informed decisions about equipment stockpiling and use, the development of creative operational concepts to increase staffing, and the careful implementation of rational infection control practices can lay a foundation for an appropriate response until additional data become available.

Surge capacity: a proposed conceptual framework

There is a need for emergency planners to accurately plan for and accommodate a potentially significant increase in patient volume in response to a disaster. In addition, an equally large political demand exists for leaders in government and the healthcare sector to develop these capabilities in a financially feasible and evidence-based manner. However, it is important to begin with a clear understanding of this concept on a theoretical level to create this capacity. Intuitively, it is easy to understand that surge capacity describes the ability of a healthcare facility or system to expand beyond its regular operations and accommodate a greater number of patients in response to a multiple casualty-producing event. The way a response to this need is implemented will, of course, vary dramatically depending on numerous issues, including the type of event that has transpired, the planning that has occurred before its occurrence, and the resources that are available. Much has been written on strategies for developing and implementing surge capacity. However, despite the frequency with which the term is used in the medical literature and by the lay press, a clear description of surge capacity as a concept is lacking. The following article will provide this foundation. A conceptual framework of surge capacity will be described, and some new nomenclature will be proposed. This is done to provide the reader with a comprehensive yet simplified view of the various elements that make up the concept of surge capacity. This framework will cover the types of events that can cause a surge of patients, the general ways in which healthcare facilities respond to these events, and the categories of people who would make up the population of affected victims.

Hospital disaster preparedness in Los Angeles County

BACKGROUND

There are no standardized measures of hospital disaster preparedness or hospital "surge capacity."

OBJECTIVES

To characterize disaster preparedness among a cohort of hospitals in Los Angeles County, focusing on practice variation, plan characteristics, and surge capacity.

METHODS

This was a descriptive, cross-sectional survey study, followed by on-site verification. Forty-five 9-1-1 receiving hospitals in Los Angeles County, CA, participated. Evaluations of hospital disaster plan structure, vendor agreements, modes of communication, medical and surgical supplies, involvement of law enforcement, mutual aid agreements with other facilities, drills and training, surge capacity (assessed by monthly emergency department diversion status, available beds, ventilators, and isolation rooms), decontamination capability, and pharmaceutical stockpiles were assessed by survey.

RESULTS

Forty-three of 45 hospital plans (96%) were based on the Hospital Emergency Incident Command System, and the majority had protocols for hospital lockdown (100%), canceling elective surgeries (93%), early discharge (98%), day care for children of staff (88%), designating victim overflow areas (96%), and predisaster "preferred" vendor agreements (96%). All had emergency medical services-compatible radios and more than three days' worth of supplies. Fewer hospitals involved law enforcement (56%) or had mutual aid agreements with other hospitals (20%) or long-term care facilities (7%). Although the vast majority (96%) conducted multiagency drills, only 16% actually involved other agencies in their disaster training. Only 13 of 45 hospitals (29%) had a surge capacity of greater than 20 beds. Less than half (42%) had ten or more isolation rooms, and 27 hospitals (60%) were on diversion greater than 20% of the time. Thirteen hospitals (29%) had immediate access to six or more ventilators. Less than half had warm-water decontamination (42%), while approximately one half (51%) had a chemical antidote stockpile and 42% had an antibiotic stockpile.

CONCLUSIONS

Among hospitals in Los Angeles County, disaster preparedness and surge capacity appear to be limited by a failure to fully integrate interagency training and planning and a severely limited surge capacity, although there is a generally high level of availability of equipment and supplies.

Understanding surge capacity: essential elements

As economic forces have reduced immediately available resources, the need to surge to meet patient care needs that exceed expectations has become an increasing challenge to the health care community. The potential patient care needs projected by pandemic influenza and bioterrorism catapulted medical surge to a critical capability in the list of national priorities, making it front-page news. Proposals to improve surge capacity are abundant; however, surge capacity is poorly defined and there is little evidence-based comprehensive planning. There are no validated measures of effectiveness to assess the efficacy of interventions. Before implementing programs and processes to manage surge capacity, it is imperative to validate assumptions and define the underlying components of surge. The functional components of health care and what is needed to rapidly increase capacity must be identified by all involved. Appropriate resources must be put into place to support planning factors. Using well-grounded scientific principles, the health care community can develop comprehensive programs to prioritize activities and link the necessary resources. Building seamless surge capacity will minimize loss and optimize outcomes regardless of the degree to which patient care needs exceed capability.

Why medical students should be trained in disaster management: our experience of the Kashmir earthquake

Two medical students say that they were unprepared for the task of treating casualties of the Kashmir earthquake, since they had not had any training in disaster management.

Medical Strategies to Handle Mass Casualties from the Use of Biological Weapons

This article reviews the definitions of biological weapons and mass casualties. In addition, it discusses the main operational and logistical issues of import in the medical management of mass casualties from the use of biological weapons. Strategies for medical management of specific biologic agents also are highlighted.

Experience of a Korean disaster medical assistance team in Sri Lanka after the South Asia tsunami

On 26 December 2004, a huge tsunami struck the coasts of South Asian countries and it resulted in 29,729 deaths and 16,665 injuries in Sri Lanka. This study characterizes the epidemiology, clinical data and time course of the medical problems seen by a Korean disaster medical assistance team (DMAT) during its deployment in Sri Lanka, from 2 to 8 January 2005. The team consisting of 20 surgical and medical personnel began to provide care 7 days after tsunami in the southern part of Sri Lanka, the Matara and Hambantota districts. During this period, a total of 2,807 patients visited our field clinics with 3,186 chief complaints. Using the triage and refer system, we performed 3,231 clinical examinations and made 3,259 diagnoses. The majority of victims had medical problems (82.4%) rather than injuries (17.6%), and most conditions (92.1%) were mild enough to be discharged after simple management. There were also substantial needs of surgical managements even in the second week following the tsunami. Our study also suggests that effective triage system, self-sufficient preparedness, and close collaboration with local authorities may be the critical points for the foreign DMAT activity.

Prehospital management of earthquake casualties buried under rubble

Earthquakes continue to exact a heavy toll on life, injury, and loss of property. Survival of casualties extricated from under the rubble depends upon early medical interventions by emergency teams on site. The objective of this paper is to review the pertinent literature and to analyze the information as a practical guideline for the medical management of casualties accidentally buried alive.

[Prehospital medical care organization during the 2003 G8 summit: a new concept of Mobile Medical Squadrons (MMS)]

OBJECTIVE

The occurrence of the 2003 G8 summit in Evian and the threat of major civil riots or even terrorist attacks in the Swiss neighbourhood forced us to imagine a new system of rescue and medical care in case of numerous victims. Previous occurrences of the G8 in Europe or America have demonstrated the need of flexible and mobile structures, able to respond quickly to crowd movements, unlike the usual static structure of rescue systems designed for major accidents.

METHODS

We developed a new concept of Mobile Medical Squadrons (MMS) consisting of several vehicles and medical care and rescue human resources. In our concept, each MMS consisted of 3 emergency doctors, 5 paramedics and 9 first-aid workers. They were designed to handle 15 patients, with a large autonomy in terms of rescue, medical care, evacuation and medical authority. The equipment included medical, resuscitation, simple decontamination, evacuation and communication materials.

RESULTS

The MMS were dispatched four times during the G8 summit following civil riots. They took care of 12 injured patients.

CONCLUSION

The concept of MMS as a reinforcement of the existing rescue and health care resources appears as a new flexible, a modular and useful concept for the medical management of collective prehospital emergency situations. Its use is suggested instead of the traditional static concept of rescue systems designed for major accidents.

Effects of a major earthquake on blood donor types and infectious diseases marker rates

This observational study attempted to identify the effect of a natural disaster on the safety of blood supply and donor types with the influx of donors after a severe earthquake. Blood donation rate, blood discard rate and safety of blood donations responding to the earthquake, as projected from the infectious disease marker rate, were evaluated in blood donated immediately before (1 July-17 August) and after 17 August 1999 (17 August-21 August). These were compared with the results from the corresponding periods in 1998 and 2000 for donations at a university medical centre and two regional blood centres. 8055 units of allogeneic blood were collected at two regional blood centres, and 450 units were collected at a university medical centre during 4 days. Viral marker rates were nearly the same at the former but were slightly lower at the latter. The blood discard rate was nearly twice the comparative periods at the former, but it remained unchanged at the latter. Voluntary donors replaced the replacement donors during 4 days. This analysis highlights the size of the pool of potential donors that are available as a national resource that can be motivated to give blood with the right motivation.

Worldwide disaster medical response: An historical perspective

OBJECTIVE

Disaster medicine and disaster medical response is a complex and evolving field that has existed for millennia. The objective of this article is to provide a brief review of significant milestones in the history of disaster medicine with emphasis on applicability to present and future structures for disaster medical response.

RESULTS

Disaster medical response is an historically necessary function in any society. These range from response to natural disasters, to the ravages of warfare, and most recently, to medical response after terrorist acts. Our current disaster response systems are largely predicated on military models derived over the last 200 yrs. Their hallmark is a structured and graded response system based on numbers of casualties. In general, all of these assume that there is an identifiable "ground zero" and then proceed with echelons of casualty retrieval and care that proceeds rearward to a hospital(s). In a civil response setting, most civilian models of disaster medical response similarly follow this military model. This historical approach may not be applicable to some threats such as bioterrorism. A "new" model of disaster medical response for this type of threat is still evolving. Using history to guide our future education and planning efforts is discussed.

CONCLUSION

We can learn much from an historical perspective that is still applicable to many current disaster medical threats. However, a new response model may be needed to address the threats of bioterrorism.

Health care facility and community strategies for patient care surge capacity

Recent terrorist and epidemic events have underscored the potential for disasters to generate large numbers of casualties. Few surplus resources to accommodate these casualties exist in our current health care system. Plans for “surge capacity” must thus be made to accommodate a large number of patients. Surge planning should allow activation of multiple levels of capacity from the health care facility level to the federal level. Plans should be scalable and flexible to cope with the many types and varied timelines of disasters. Incident management systems and cooperative planning processes will facilitate maximal use of available resources. However, resource limitations may require implementation of triage strategies. Facility-based or “surge in place” solutions maximize health care facility capacity for patients during a disaster. When these resources are exceeded, community-based solutions, including the establishment of off-site hospital facilities, may be implemented. Selection criteria, logistics, and staffing of off-site care facilities is complex, and sample solutions from the United States, including use of local convention centers, prepackaged trailers, and state mental health and detention facilities, are reviewed. Proper pre-event planning and mechanisms for resource coordination are critical to the success of a response.

Function and response of nursing facilities during community disaster

OBJECTIVES

We sought to describe the role and function of nursing facilities after disaster.

METHODS

We surveyed administrators at 144 widely dispersed nursing facilities after the Los Angeles Northridge earthquake.

RESULTS

Of the 113 (78%) nursing facilities that responded (11 365 beds), 23 sustained severe damage, 5 closed (625 beds), and 72 lost vital services. Of 87 nursing facilities implementing disaster plans, 56 cited problems that plans did not adequately address, including absent staff, communication problems, and insufficient water and generator fuel. Fifty-nine (52%) reported disaster-related admissions from hospitals, nursing facilities, and community residences. Nursing facilities received limited postdisaster assistance. Five months after the earthquake, only half of inadequate nursing facility disaster plans had been revised.

CONCLUSIONS

Despite considerable disaster-related stresses, nursing facilities met important community needs. To optimize disaster response, community-wide disaster plans should incorporate nursing facilities.

Terrorism in Mexico

Even though Mexico is considered internationally as a pacifist country, its economic, social, and geopolitical characteristics during the last half of the 20th century have resulted in internal events that can be considered acts of terrorism. Most of the acts of terrorism during the last 15 years have had to do either with political movements or drug-dealing actions. After the 11 September 2001 attacks in the United States, Mexican Health Authorities have strengthened the epidemiological surveillance system. More than 1,372 calls asking for information or reporting suspicious envelopes were received between 16 October and 21 October 2001. Following the earthquake in 1985 that caused great damage and many deaths in Mexico, the National Civil Protection System was created in 1986. This protection system is led by the President and the Secretary of Government. It was developed to improve preparedness for disaster coordination more than for terrorism responses. In addition, the emergency medical systems continue to lack organization, even though some states have shown significant progress in their emergency medical system.

Site management of health issues in the 2001 World Trade Center disaster

The terrorist destruction of the World Trade Center led to the greatest loss of life from a criminal incident in the history of the United States. There were 2,801 persons killed or missing at the disaster site, including 147 dead on two hijacked aircraft. Hundreds of buildings sustained direct damage or contamination. Forty different agencies responded with command and control exercised by an incident command system as well as an emergency operations center. Dozens of hazards complicated relief and recovery efforts. Five victims were rescued from the rubble. Up to 1,000 personnel worked daily at the World Trade Center disaster site. These workers collectively made an average of 270 daily presentations to health care providers in the first month post-disaster. Of presentations for clinical symptoms, leading clinical diagnoses were ocular injuries, headaches, and lung injuries. Mechanical injury accounted for 39% of clinical presentations and appeared preventable by personal protective equipment. Limitations emerged in the site application of emergency triage and clinical care. Notable assets in the site management of health issues include action plans from the incident command system, geographic information system products, wireless application technology, technical consensus among health and safety authorities, and workers' respite care.

Implications of hospital evacuation after the Northridge, California, earthquake

BACKGROUND

On January 17, 1994, an earthquake with a moment magnitude (total energy release) of 6.7 occurred in Northridge, California, leading to the evacuation of patients from several hospitals. We examined the reasons for and methods of evacuation and the emergency-management strategies used. The experience in California may have implications for hospital strategies for responding to any major disaster, including an act of terrorism.

METHODS

From September 1995 to September 1996, we surveyed all acute care hospitals in Los Angeles County that reported having evacuated patients after the Northridge earthquake. Physicians, nurses, hospital administrators, and staff on duty at the hospitals during the evacuation responded to a 58-item structured questionnaire.

RESULTS

Eight of 91 acute care hospitals (9 percent) were evacuated. Six hospitals evacuated patients within 24 hours (the immediate-evacuation group), four completely and two partially. All six cited nonstructural damage such as water damage and loss of electrical power as a major reason for evacuation. Five hospitals evacuated the most seriously ill patients first, and one hospital evacuated the healthiest patients first. All hospitals used available equipment to transport patients (blankets, backboards, and gurneys) rather than specialized devices. No deaths resulted from evacuation. One hospital evacuated patients after 3 days and another after 14 days because of structural damage, even though initial inspections had shown no damage (the delayed-evacuation group). Both hospitals required demolition. Some hospitals identified destinations for their evacuated patients independently, whereas others sought the assistance of the Los Angeles County Emergency Operations Center; the two strategies were equally effective.

CONCLUSIONS

After even a moderate earthquake, hospitals are at risk for both immediate nonstructural damage that may force them to evacuate patients and the delayed discovery of structural damage resulting in permanent closure. Evacuation of large numbers of inpatients from multiple hospitals can be accomplished quickly and safely with the use of available resources and personnel.

Disaster nephrology: medical perspective

Disaster medicine is an extension of emergency medicine involving mass casualties and use of the best available techniques in search and rescue. To achieve the best results extensive predisaster preparedness is mandatory. Earthquakes have caused the loss of more than 1 million lives in the 20th century. Evidence-based medicine confirms that these deaths were mostly preventable based on experience in developed countries. The key to success is implementing building codes and structural reinforcement. In earthquakes as well as in collapse of buildings in bomb blasts, loss of life is either because of the direct effect of trauma or to the metabolic consequences of rhabdomyolysis and complications of its management. Hyperkalemia and infection are the commonest causes of death in victims who survive the direct effect of trauma. Acute renal failure, a grave complication of rhabdomyolysis, is mostly preventable by timely rehydration and bicarbonate therapy. Mannitol therapy can be very efficient in reducing the severity of muscle damage and its sequelae. Fasciotomy can be limb saving if it is done in the early hours, although a firm guideline is still lacking. Although each country is responsible for improving the structure of buildings and organizing an efficient disaster response, national and international organizations in developed countries should give high priority to communicating with developing countries to encourage their preparedness.

The Gujarat earthquake (2001) experience in a seismically unprepared area: community hospital medical response

BACKGROUND

At 08:53 hours on 26 January 2001, an earthquake measuring 6.9 on the Richter scale devastated a large, drought-affected area of northwestern India, the state of Gujarat. The known number killed by the earthquake is 20,005, with 166,000 injured, of whom 20,717 were "seriously" injured. About 370,000 houses were destroyed, and another 922,000 were damaged.

METHODS

A community health worker using the local language interviewed all of the patients admitted to the Gandhi-Lincoln hospital with an on-site, oral, real-time, Victim Specific Questionnaire (VSQ).

RESULTS

The census showed a predominance of women, children, and young adults, with the average age being 28 years. The majority of the patients had other family members who were also injured (84%), but most had not experienced deaths among family members (86%). Most of the patients (91%) had traveled more than 200 kilometers using their family cars, pick-ups, trucks, or buses to reach the buffer zone hospitals. The daily hospital admission rate returned to pre-event levels five days after the event, and all of the hospital services were restored by nine days after the quake. Most of the patients (83%) received definitive treatment in the buffer zone hospitals; 7% were referred to tertiary-care centers; and 9% took discharge against medical advice. The entrapped village folk with their traditional architecture had lesser injuries and a higher rescue rate than did the semi-urban townspeople, who were trapped in collapsed concrete masonry buildings and narrow alleys. However, at the time of crisis, aware townspeople were able to tap the available health resources better than were the poor. There was a low incidence of crush injuries. Volunteer doctors from various backgrounds teamed up to meet the medical crisis. International relief agencies working through local groups were more effective. Local relief groups needed to coordinate better. Disaster tourism by various well-meaning agencies took a toll on the providers. Many surgeries may have contributed to subsequent morbidity.

CONCLUSIONS

The injury profile was similar to that reported for most other daytime earthquakes. Buffer zone treatment outcomes were better than were the field and damaged hospital outcomes.

Mass casualties and triage at a sporting event

When a sports medicine doctor provides coverage for a sporting event with a large number of athletes and spectators, he or she should always be aware that the potential for a large number of injuries exists. In the event of a mass casualty incident that overwhelms the available medical resources, he or she may be the most qualified professional present to triage and organise patient care. Certain basic rules of triage in a disaster situation should be followed, the goal being to save as many lives as possible. Special circumstances, such as crush injuries, lightning strikes, and blast injuries, may affect the triage and initial care of injured patients.

Emergency medical assistance team response following Taiwan Chi-Chi earthquake

INTRODUCTION

On 21 September, 1999, an earthquake measuring 7.3 on the Richter scale, struck central Taiwan near the town of Chi-Chi. The event resulted in 2,405 deaths and 11,306 injuries. Ad hoc emergency medical assistance teams (EMATs) from Taiwan assumed the responsibility for initiating early assessments and providing medical care.

OBJECTIVE

To determine whether the EMATs served a key role in assisting critically injured patients through the assessment of number and level of hospitals responding, training background, timeliness of response, and acuity of patient encounters.

METHODS

Local and national health bureaus were contacted to identify hospitals that responded to the disaster. A comprehensive questionnaire was piloted and then, sent to those major medical centers that dispatched EMATs within the first 72 hours following the quake. In-depth interviews also were conducted with team leaders.

RESULTS

A total number of 104 hospitals/clinics responded to the disaster, including nine major medical centers and 12 regional hospitals. Each of the major medical centers/regional hospitals that dispatched EMATs during the first 72 hours following the quake were surveyed. Also, 20 individual team leaders were interviewed. Seventy-nine percent of the EMATs from the hospitals responded spontaneously to the scene, while only 21% were dispatched directly by national or local health authorities. Combining the phases of the disaster response, it is estimated that only 7% of EMATs were providing on-site care within the first 12 hours following the earthquake, 17% within < 18 hours, and 20% within < 24 hours. Thus, 80% of these EMATs required > 24 hours to respond to the site. Based on a ED I-IV triage system (Level-I, highest acuity; Level-IV, lowest acuity), the vast majority of patient encounters consisted of Level-III and Level-IV patients. Fewer than 16% of teams encountered > 10 Level-I patients, and < 28% of teams evaluated > 10 Level-II patients.

CONCLUSIONS

1. The response from EMATs was impressive, but largely uncoordinated in the absence of a pre-existing dispatching mechanism. 2. Most of the EMATs required > 24 hours to reach the disaster sites, and generally, did not arrive in time of affect the outcome of victims with preventable deaths. Therefore, there is an urgent need to strengthen local prehospital care. 3. A central governmental body that ensures better horizontal and vertical integration, and a comprehensive emergency management system is required in order to improve future disaster response and mitigation efforts.

Disaster epidemiology and medical response in the Chi-Chi earthquake in Taiwan

STUDY OBJECTIVE

We examine the mortality and morbidity associated with earthquakes in the Chi-Chi earthquake in Taiwan in 1999.

METHODS

Crude casualty data were collected from the reports of the government, local health bureaus, and 97 hospitals. The demographic data from the annual report of the Department of Interior were also employed for data analysis. Cross tables showing incidence of deaths and injuries by age, sex, time, and geographic distribution were generated to compare the mortality among different subgroups. Multiple regression models were established to explore the risk factors related to the mortality caused by earthquakes.

RESULTS

The following results were found: the mortality rate increased with proximity to the epicenter, mortality was higher among the elderly than among young people, 30% of the victims died from head injuries caused by the collapse of dwellings, and the peak of medical demand was 12 hours after the earthquake and significantly increased demand for care lasted as long as 3 days. Furthermore, the regression model indicated that 78.5% of the variation of locality-age-sex-specific mortality was explained by the intensity of the earthquake, age, population density, distance to epicenter, medical beds per 10,000 people, and physicians per 10,000 people.

CONCLUSION

The results implied that fragile minorities, specifically the elderly and children, require special consideration and attention in regard to disaster rescue and emergency medical care allocation. Epidemiologic analysis can guide disaster response and preparation.

Thorax and lung injuries arising from the two earthquakes in Turkey in 1999

STUDY OBJECTIVE

To make a descriptive analysis of the frequency and the type of thorax and lung injuries among the casualties of the two devastating earthquakes that occurred in Turkey in 1999.

DESIGN

Records of the hospitalized patients injured in the earthquakes were examined retrospectively.

RESULTS

Among the total of 356 hospitalized patients, 21 (9.7%) in the Izmit earthquake and 6 (7.6%) in the Duzce earthquake had thorax and lung injuries. Pneumothorax and rib fractures were the two most frequent pathologies and accounted for 50% and 33.3% of the injuries, respectively.

CONCLUSION

Approximately 10% of the casualties of a great earthquake may be expected to have thorax and lung injuries, and traumatic chest diseases should be considered in planning the medical response strategies.

Intervention of the Renal Disaster Relief Task Force in the 1999 Marmara, Turkey earthquake

BACKGROUND

Major earthquakes are followed by a substantial number of crush syndromes and pigment-induced acute renal failures (ARFs). The natural evolution of this problem rapidly leads to death. Today's possibilities of dialysis therapy enable saving numerous lives that otherwise would be lost. Currently, the primary problem is organizational, if huge catastrophes occur and complex therapeutic options need to be offered to a large number of victims.

METHODS

Following the 1988 Spitak earthquake in Armenia, the International Society of Nephrology (ISN) established the Renal Disaster Relief Task Force (RDRTF) in order to anticipate organizational problems related to renal care in the aftermath of large natural and human-made catastrophes. The proposed concept was one of a dialysis advance team, which would assess the needs and possibilities of dialysis treatment, to be followed by supportive manpower and supplies. This article describes the organizational aspects of a rescue action that was undertaken following the Marmara earthquake, which occurred on August 17th, 1999, in northwestern Turkey. In conjunction with Médecins Sans Frontières, a team landed at Istanbul Airport less than 22 hours after the disaster, and logistic and material support as well as manpower were provided over a period of approximately one month. Specific attention was paid to the choice of the renal replacement therapy, the transport of victims and materials, the implementation of preventive rehydration, and the problem of chronic renal failure patients dialyzed in the damaged area.

CONCLUSIONS

We demonstrate how previously anticipated international support may offer moral, financial, as well as logistical help to local nephrological communities confronted with serious disasters.

An earthquake disaster in Turkey: assessment of the need for plastic surgery services in a crisis intervention field hospital

On August 17, 1999, an earthquake of 7.4 magnitude struck Turkey, resulting in the destruction of the cities Golcuk, Izmit, Adapazari, and Yalova. Three days later, the Israel Defense Force Field Hospital arrived at Adapazari, serving as a reinforcement hospital until the rehabilitation of the local medical facilities. Surgical services in the field hospital were supplied by general, orthopedic, and plastic surgeons. The authors evaluated all soft-tissue injuries managed at the hospital and assessed the need for plastic surgery services in a crisis intervention field hospital. Information was gathered regarding soft-tissue injuries throughout the activity of the hospital. In addition, patients' charts, operations' reports, and entry and evacuation logs were reviewed for all patients accepted and treated in the field hospital. Interviews of patients, local physicians, and citizens of Adapazari were performed to evaluate the medical situation in the first 3 days after the earthquake. A total of 1205 patients were treated by the field hospital in Adapazari; 138 (11.45 percent) of these patients sought aid for isolated soft-tissue injuries, 105 of which (76.09 percent) were earthquake-related. Twenty (51.28 percent) of the operations performed in the hospital were to treat soft-tissue injuries; 1.49 percent of all patients underwent minor surgical manipulations by the plastic surgeon on staff. Plastic surgery patients occupied 13.6 percent of the hospital beds. In conclusion, the authors find it beneficial to supply plastic surgery services at a field hospital in an earthquake situation.

Analysis of medical needs on day 7 after the tsunami disaster in Papua New Guinea

INTRODUCTION

Because of great intervening distances, international medical relief activities in catastrophic, sudden-onset disasters often do not begin until days 5-7 after the precipitating event. The medical needs of those affected and what public health problems exist in the community in the week after the tsunami disaster in Papua New Guinea(PNG) were investigated.

METHODS

The Japan Medical Team for Disaster Relief (JMTDR) conducted investigative hearings at the District Office responsible for the management of the disaster, the Care Center, and the Hospitals in Aitape, Vanimo, and Wewak in PNG.

RESULTS

The numbers of in-patients in the Aitape, Vanimo, and Wewak Hospitals, and in the Care Center in Aitape were 291, > 300, 68, and 104, respectively. The exact number of people affected was unknown at the Aitape District Office. There was no lack of medical supplies and drugs in the hospital, but the Care Center in Aitape did not have sufficient quantities of antibiotics. No outbreak of communicable disease occurred, despite the presence of risk factors such as the dense concentration of affected people and the constant prevalence of malaria and diarrhea. The water at Wewak General Hospital contained chlorine and was suitable for drinking, but that elsewhere contained bacteria.

CONCLUSIONS

On about the 7th day after the event, the available information still was incomplete, and it was a time to shift from initial emergency activities to specialized medical care. Although no outbreak of communicable disease actually occurred, there was much anxiety about it because of the risk factors present. For effective medical care at this stage, it is essential to conduct a survey of actual medical needs that also include epidemiological factors.

Out-of-hospital and emergency department management of epidemic scombroid poisoning

OBJECTIVE

To report two epidemic outbreaks of scombroid food poisoning and their emergency medical services (EMS) response and emergency department (ED) treatment, analyzing the impact of early physician involvement and on-line medical control.

METHODS

Retrospective case series of two multiple-casualty incidents (MCIs) involving scombroid food poisoning.

RESULTS

A total 57 patients were treated from two separate incidents, with 30 patients transported to area hospitals. One patient required treatment with a cardiac medication in the field and another patient eventually required hospital admission. On-scene medical control (incident 1) and early identification of the index case (incident 2) were instrumental to out-of-hospital care interventions and conservation of resources. Patient triage, field treatment, and hospital transport were expedited, with some patients treated and released from the scene.

CONCLUSIONS

Immediate diagnosis of a food-borne illness in the out-of-hospital setting allows rapid treatment at the scene and allows for the efficient transport of multiple patients to a single receiving facility. EMS medical directors should be able to immediately respond to such incidents to make presumptive diagnoses and accurately direct patient care. When this is not possible, early identification of the index case facilitates early diagnosis and treatment.

Anesthesia outside the operating room for emergency procedures

Non-anesthetists usually provide sedation and anesthesia outside the operating room for emergency procedures. Techniques vary from no sedation to deep sedation using drugs with a good safety profile and few side effects. Newer methods of airway control may allow volatile agents such as sevoflurane to be used. Anesthetists may need to join sedation teams if they are to maintain control of their specialty.