Analysis of trends and emergency activities relating to critical victims of the Chuetsuoki Earthquake.

INTRODUCTION: When a large-scale disaster occurs, it is necessary to use the available resources in a variety of sites and scenes as efficiently as possible. To conduct such operations efficiently, it is necessary to deploy limited resources to the places where they will be the most effective. In this study, emergency and medical response activities that occurred following the Chuetsuoki Earthquake in Japan were analyzed to assess the most efficient and effective activities. METHODS: Records of patient transports by emergency services relating to the Niigata Chuetsuoki Earthquake, a magnitude 6.8 earthquake that struck Japan on 16 July 2007 were analyzed, and interview surveys were conducted. RESULTS: The occurrence of serious injuries caused by this earthquake essentially was limited to the day the earthquake struck. A total of 682 patients were treated on the day of the quake, of which about 90 were hospitalized. Of the 17 patients whose conditions were life-threatening, three were rescued and transported to hospital by firefighters, three were transported by ambulance, and 11 were transported to hospital using private means. Sixteen people were subsequently transferred to other hospitals, six of these by helicopter. There was difficulty in meeting all of the requests for emergency services within 4 to 6 hours of the earthquake's occurrence. Most transports of patients whose conditions were life-threatening were between hospitals rather than from the scene of the injury. Transfers of critical patients between hospitals were efficient early on, but this does not necessarily mean that inter-hospital transfers were given higher priority than treatment at emergency scenes. CONCLUSION: During the acute emergency period following a disaster-causing event, it is difficult to meet all requests for emergency services. In such cases, it is necessary to conduct efficient activities that target critically injured patients. Since hospital transfers are matters of great urgency, it is necessary to consider assigning resource investment priority to hospital transfers during this acute period, when ambulance services may be insufficient to meet all needs. To deal with such disasters appropriately, it is necessary to ensure effective information exchange and close collaboration between ambulance services, firefighting organizations, disaster medical assistance teams, and medical institutions.

Establishing disaster medical assistance teams in Japan.

INTRODUCTION: The large number casualties caused by the 1995 Great Hanshin and Awaji Earthquake created a massive demand for medical care. However, as area hospitals also were damaged by the earthquake, they were unable to perform their usual functions. Therefore, the care capacity was reduced greatly. Thus, the needs to: (1) transport a large number of injured and ill people out of the disaster-affected area; and (2) dispatch medical teams to perform such wide-area transfers were clear. The need for trained medical teams to provide medical assistance also was made clear after the Niigata-ken Chuetsu Earthquake in 2004. Therefore, the Japanese government decided to establish Disaster Medical Assistance Teams (DMATs), as "mobile, trained medical teams that rapidly can be deployed during the acute phase of a sudden-onset disaster". Disaster Medical Assistance Teams have been established in much of Japan. The provision of emergency relief and medical care and the enhancement and promotion of DMATs for wide-area deployments during disasters were incorporated formally in the Basic Plan for Disaster Prevention in its July 2005 amendment. RESULTS: The essential points pertaining to DMATs were summarized as a set of guidelines for DMAT deployment. These were based on the results of research funded by a Health and Labour Sciences research grant from the, Labour and Welfare (MHLW) of the Ministry of Health. The guidelines define the basic procedures for DMAT activities-for example: (1) the activities are to be based on agreements concluded between prefectures and medical institutions during non-emergency times; and (2) deployment is based on requests from disaster-affected prefectures and the basic roles of prefectures and the MHLW. The guidelines also detail DMAT activities at the disaster scene of the, support from medical institutions, and transportation assistance including "wide-area" medical transport activities, such as medical treatment in staging care units and the implementation of medical treatment onboard aircraft. CONCLUSIONS: Japan's DMATs are small-scale units that are designed to be suitable for responding to the demands of acute emergencies. Further issues to be examined in relation to DMATs include expanding their application to all prefectures, and systems to facilitate continuous education and training.

Gluteal Soft Tissue Necrosis After Transcatheter Angiographic Embolization for Pelvic Fracture: a Report of Two Cases.

In this paper, two cases of the gluteal soft tissue necrosis after pelvic fractures will be discussed. In the case of a 29-year-old man, a localized area of skin necrosis on the buttock appeared after transcatheter arterial embolization (TAE) of the right internal iliac artery (IIA). In the second case, a 52-year-old man, who was treated using TAE of the bilateral IIA's, developed an extensive area of necrosis in the gluteus maximus muscle with subsequent severe infection. In both cases, complete excision of the necrotic tissue and reconstructive flap surgery were imperative. Gluteal soft tissue necrosis is clinically important as one of the serious complications of TAE.

Analysis of patient load data from the 2002 FIFA World Cup Korea/Japan.

INTRODUCTION: Past history of mass casualties related to international football games brought the importance of practical planning, preparedness, simulation training, and analysis of potential patient presentations to the forefront of emergency research. METHODS: The Japanese Ministry of Health, Labor, and Welfare established the Health Research Team (HRT-MHLW) for the 2002 FIFA World Cup game (FIFAWC). The HRT-MHLW collected patient data related to the games and analyzed the related factors regarding patient presentations. RESULTS: A total of 1661 patients presented for evaluation and care from all 32 games in Japan. The patient presentation rate per 1000 spectators per game was 1.21 and the transport-to-hospital rate was 0.05. The step-wise regression analysis identified that the patient presentations rate increased where access was difficult. As the number of total spectators increased, the patient presentation rate decreased. (p < 0.0001, r = 0.823, r2 = 0.677). CONCLUSION: In order to develop mass-gathering medical-care plans in accordance with the types and sizes of mass gatherings, it is necessary to collect data and examine risk factors for patient presentations for a variety of events.