The aim of this qualitative, retrospective review is to identify and analyze the occurrence of recurrent problems in 20 processes that cover all relevant aspects of disaster health during the response phase. Consequently, an attempt is made to determine if there are generic themes of coherences in these problems.

Eight after-action reports of five consecutive disasters in the Netherlands, between 1996 and 2005, were integrally analyzed in a structured manner. The analysis was confined to processes from the start of the event up to and including the initial stages of hospital admission.

Problems during all five disasters arose with eight processes: (1) submission of information to the ambulance dispatch center (ADC); (2) provision of information by the ADC to disaster response personnel; (3) scaling-up of prehospital response; (4) communication; (5) logistics; (6) registration; (7) multidisciplinary cooperation; and (8) preparation. Three generic themes of coherence were identified: (1) processes in which exchange of information among medical personal plays a major role are more likely to be affected by problems than processes in which this is less relevant; (2) processes in which disaster circumstances differ from day-to-day health care, or do not figure in day-to-day health care, are more likely to give rise to problems than processes that remain essentially similar; and (3) the existence of a protocol or disaster plan governing a process does not prevent problems.

The method used enables a systematic analysis of the problems in health-related processes following five consecutive disasters. The analysis confirms that the majority of problems are repeated. The identified themes of coherences are in agreement with case reports and expert opinions. They are now supported with a higher level of evidence.

Sudden, out-of-hospital cardiac arrest (OHCA) has an annual incidence of approximately 50 per 100,000 population. Public access defibrillation is seen as one of the key strategies in the chain-of-survival for OHCA. Positioning of these devices is important for the maximization of public health outcomes. The literature strongly advocates widespread public access to automated external defibrillatiors (AEDs). The most efficient placement of AEDs within individual communities remains unclear.

A retrospective case review of OHCAs attended by the South Australia Ambulance Service in metropolitan and rural South Australia over a 30-month period was performed. Data were analyzed using Utstein-type indicators. Detailed demographics, summative data, and clinical data were recorded.

A total of 1,305 cases of cardiac arrest were reviewed. The annual rate of OHCA was 35 per 100,000 population. Of the cases, the mean value for the ages was 66.3 years, 517 (39.6%) were transported to hospital, 761 (58.3%) were judged by the paramedic to be cardiac, and 838 (64.2%) were witnessed. Bystander cardiopulmonary resuscitation (CPR) was performed in 495 (37.9%) of cases. The rhythm on arrival was ventricular fibrillation (VF) or ventricular tachycardia (VT) in 419 (32.1%) cases, and 315 (24.1%) of all arrests had return of spontaneous circulation (ROSC) before or on arrival at the hospital. For cardiac arrest cases that were witnessed by the ambulance service (n = 121), the incidence of ROSC was 47.1%.

During the 30-month period, there only was one location that recorded more than one cardiac arrest. No other location recorded recurrent episodes.

This study did not identify any specific location that would justify defibrillator placement over any other location without an existing defibrillator. The impact of bystander CPR and the relatively low rate of bystander CPR in this study points to an area of need. The relative potential impact of increasing bystander CPR rates versus investing in defibrillators in the community is worthy of further consideration.

Exposure to prolonged war stress is understudied. While there is debate regarding the empirical data of the dose-response model for post-traumatic stress disorder (PTSD), little is known about how weekly changes in external stress influences the level of PTSD symptoms. The purpose of this study was to measure the relation between objective external stress and PTSD symptoms across time, and thus, gain a deeper understating of the dose-response model.

The study hypothesis postulates that the more severe the external stressor, the more severe the exhibition of traumatic symptoms.

Thirteen special army administrative staff (SAAS) members from the Rambam Medical Center in Haifa attended seven intervention meetings during the war. These personnel answered a battery of questionnaires regarding demographics and PTSD symptoms during each session. A non-parametric test was used in order to measure the changes in PTSD symptoms between sessions. Pearson correlations were used in order to study the relationship between the magnitude of external stressors and the severity of PTSD symptoms.

The results suggested that there was a significant relationship between the magnitude of external stressors and the severity of PTSD symptoms. These results are in line with the dose-response model.

The results suggest that a pattern of decline in PTSD symptoms confirm the dose-response model for PTSD.

The disruption of routine treatment, including the interruption of medication, exacerbates chronic conditions during disasters. However, the health consequences of the interruption of medication have not been fully examined. On 22 July 2006, a flash flood affected more than 3,000 households in five cities and four towns in the northern part of Kagoshima Prefecture in southwest Japan. The aims of this study are to describe the prevalence of the interruption of medication among the outpatients in the flood-affected area and to determine the risk and preventive factors for the interruption of medication.

This was a cross-sectional study using a self-administered questionnaire. The study subjects were the outpatients who visited nine of 15 medical facilities in the flood-affected area from 23 January and 31 January 2007. Of 810 valid respondents, 309 who received medication treatment before the event were eligible for the study. Information on socio-demographic factors, chronic health conditions, preparedness-related factors before the event and damage-related factors were collected. Overall and evacuation status-specific prevalence of interruption of medication were presented. For those evacuated, the associations between interruption of medication and relevant patient characteristics, as well as deterioration of health status after the event, were examined.

The prevalence of interruption of medication was 9% in total, but it increased up to 23% among the evacuated subjects. Interruption of medication was more likely among those aged ≥75 years (odds ratio [OR] = 3.6; 95% confidence interval [CI] = 1.0−12.6) and those receiving long-term care services (OR = 4.6; 95% CI = 1.1−19.1), while it was less likely among those with hypertension (OR = 0.2; 95% CI = 0.1−0.8) and those prepared to go out with medication (OR = 0.2; 95% CI = 0.03−0.8). Those who experienced interruption of medication were more likely to have deteriorated health status one month after the event (OR = 4.5; 95% CI = 1.2−17.6).

Interruption of medication occurred more commonly among the evacuated subjects. Among the evacuated, the elderly and those receiving longterm care services were at high risk for interruption of medication, while the preparedness behavior of “preparing to go out with medication” had preventive effect. Special attention must be paid to the high-risk subgroups, and some preventive behaviors should be recommended.

Training emergency personnel on the clinical management of a mass-casualty incident (MCI) with prior chemical, biological, radioactive, nuclear, or explosives (CBRNE)-exposed patients is a component of hospital preparedness procedures.

The objective of this research was to determine whether a Virtual Emergency Department (VED), designed after the Stanford University Medical Center's Emergency Department (ED) and populated with 10 virtual patient victims who suffered from a dirty bomb blast (radiological) and 10 who suffered from exposure to a nerve toxin (chemical), is an effective clinical environment for training ED physicians and nurses for such MCIs.

Ten physicians with an average of four years of post-training experience, and 12 nurses with an average of 9.5 years of post-graduate experience at Stanford University Medical Center and San Mateo County Medical Center participated in this IRB-approved study. All individuals were provided electronic information about the clinical features of patients exposed to a nerve toxin or radioactive blast before the study date and an orientation to the “game” interface, including an opportunity to practice using it immediately prior to the study. An exit questionnaire was conducted using a Likert Scale test instrument.

Among these 22 trainees, two-thirds of whom had prior Code Triage (multiple casualty incident) training, and one-half had prior CBRNE training, about two-thirds felt immersed in the virtual world much or all of the time. Prior to the training, only four trainees (18%) were confident about managing CBRNE MCIs. After the training, 19 (86%) felt either “confident” or “very confident”, with 13 (59%) attributing this change to practicing in the virtual ED. Twenty-one (95%) of the trainees reported that the scenarios were useful for improving healthcare team skills training, the primary objective for creating them. Eighteen trainees (82%) believed that the cases also were instructive in learning about clinical skills management of such incidents. Conclusions: These data suggest that training healthcare teams in online, virtual environments with dynamic virtual patients is an effective method of training for management of MCIs, particularly for uncommonly occurring incidents.

These data suggest that training healthcare teams in online, virtual environments with dynamic virtual patients is an effective method of training for management of MCIs, particularly for uncommonly occurring incidents.

Limited data exist on the standard of care provided for children at mass gatherings and special events (MGSE). Some studies provide valuable insight into the proportion of pediatric patients that can be expected at various types of MGSEs, but an accurate breakdown of the range of pediatric conditions treated at major events has yet to be produced. Such data are essential for the preparation of MGSEs so that the health and safety of children at such events can be adequately safeguarded. The aim of this study is to examine the care requirements for children at a large, outdoor music festival in the United Kingdom.

A retrospective review of all patient report forms (PRFs) from a large, outdoor music festival held in Leeds (UK) in 2003. Data were extracted from the PRFs using a standardized proforma and analyzed using an Excel computer program.

Pediatric cases contributed approximately 15% to the overall workload at the event. Children presented with a range of conditions that varied from those seen in the adult population. Children were more likely than adults to present for medical attention following crush injuries (OR = 2.536; 95% CI = 1.537–4.187); after a collapse/syncopal episode (OR = 2.687; 95% CI = 1.442–5.007); or complaining of nausea (OR = 3.484; 95% CI = 2.089–5.813). Alcohol/drugs were less likely to be involved in the precipitating cause for medical attention in children compared to adults (OR = 0.477; 95% CI = 0.250–0.912). No critical care incidents involving children were encountered during the event.

Mass gatherings and special events in the UK, such as outdoor music festivals, can involve a large number of children who access medical care for a different range of conditions compared to adults. The care of children at large, outdoor music events should not be overlooked. Event planning in the UK should include measures to ensure that appropriately trained and equipped medical teams are used at music festivals to safeguard the welfare of children who may attend. Further research into this exciting area is required.

The purpose of this study was to evaluate the ability of first-year paramedic students to identify ST-segment elevation myocardial injury (STEMI) on 12-lead electrocardiograms (ECGs) following a three-hour presentation by a board-certified emergency medicine physician experienced in ECG interpretation.

Thirty-three first-year paramedic students with minimal to no experience in evaluating 12-lead ECGs were administered a pretest with 20 12-lead ECGs and were asked to evaluate each for: (1) presence of STEMI (STEMI identification); (2) if STEMI presents, ECG leads demonstrating ST-elevation (LEAD identification); and (3) if STEMI present, the anatomic distribution of the STEMI (ANATOMY identification). The students were randomized into two groups. Group 1 (16 students; control group) received a handout describing the evaluation of ECGs for STEMI, while Group 2 (17 students; experimental group) received the handout plus a threehour presentation on the evaluation of ECGs for STEMI. Following randomization, distribution of the STEMI handout and ECG STEMI presentation, a posttest with 20 new ECGs was administered to all participants. The pretest and posttest mean scores were compared between the two groups to determine if attendance at the presentation improved the paramedic students' abilities to evaluate and identify STEMI ECGs. Following the STEMI posttest, students in Group 1 were provided with the STEMI lecture. Students were retested with 20 new ECGs five months following the initial study to examine retention of the information taught.

The mean pre-test scores for the two groups (Group 1 vs Group 2, respectively) in STEMI identification (74.4 vs 75.6%; p = 0.79), lead identification (50.0 vs. 51.2%; p = 0.8) and anatomy identification (49.4 vs 51.8%; p = 0.60) were similar in all three categories. Post-test scores between Group 1 and Group 2 demonstrated statistically significant differences in STEMI identification (85.6 vs 92.4%; p <0.02), lead identification (73.4 vs 85.2%; p <0.02), and anatomy identification (65.9 vs 87.1%; p <0.01), with Group 2 demonstrating higher mean scores relative to Group 1 in all three categories. Comparison of mean initial pre-test and five-month retest scores for all students demonstrated statistically significant differences in STEMI identification (75.0 vs 87.4%; p <0.0001), lead identification (50.6 vs 82.2%; p <0.0001), and anatomy identification (50.6 vs 76.6%; p <0.0001).

The ability of first-year paramedic students to accurately detect STEMI on prehospital 12-lead ECGs is enhanced by a structured ECG STEMI presentation provided by an emergency medicine physician, and these students maintained excellent retention of STEMI ECG skills over a five-month period.

Seattle-King County (SKC) Washington is at risk for regional disasters, especially earthquakes. Of 1.8 million residents, >400,000 (22%) are children, a proportion similar to that of the population of the State of Washington (24%) and of the United States (24%). The county's large area of 2,134 square miles (5,527 km2) is connected through major transportation routes that cross numerous waterways; sub-county zones may become isolated in the wake of a major earthquake. Therefore, each of SKC's three sub-county emergency response zones must have ample pediatric medical response capabilities. To date, total quantities and distribution of crucial hospital resources (available in SKC) to manage pediatric victims of a medical disaster are unknown. This study assessed whether geographical distribution of hospital pediatric resources corresponds to the pediatric population distribution in SKC.

Surveys were delivered electronically to all eight acute care hospitals in SKC that admit pediatric patients. Quantities and categories of pediatric resources, including inpatient treatment space, staff, and equipment, were queried and verified via site visits.

Within the seven responding hospitals of eight queried, the following were identified: 477 formal pediatric bed spaces (pediatric intensive care unit, neo-natal intensive care unit, general wards, and emergency department), 43 informal pediatric bed spaces (operating room and post-anesthesia care unit), 1,217 pediatric nurses, 554 pediatric physicians, and 252 infant/pediatric-adaptable ventilators. The City of Seattle emergency response zone contains 82.1% of bed spaces, 83.5% of nurses, and 95.8% of physicians, yet only 22.8% of all SKC children live in that zone.

The majority of hospital pediatric resources are located in the SKC sub-region with the fewest children. These resources are potentially inaccessible and unable to be redistributed by ground transportation in the event of a significant regional disaster. Future planning for pediatric care in the event of a medical disaster in SKC must address this vulnerability.

On 07 July 2005, four bombs were detonated in London, killing 52 members of the public. Approximately 700 individuals received treatment either at the scene or at nearby hospitals.

Significant concerns about the potential long-term psychological and physical health effects of exposure to the explosions were raised immediately after the bombings. To address these concerns, a public health register was established for the purpose of following-up with individuals exposed to the explosions.

Invitations to enroll in the register were sent to individuals exposed to the explosions. A range of health, emergency, and humanitarian service records relating to the response to the explosions were used to identify eligible individuals. Follow-up was undertaken through self-administered questionnaires. The number of patients exposed to fumes, smoke, dust, and who experienced blood splashes, individuals who reported injuries, and the type and duration of health symptoms were calculated. Odds ratios of health symptoms by exposure for greater or less than 30 minutes were calculated.

A total of 784 eligible individuals were identified, of whom, 258 (33%) agreed to participate in the register, and 173 (22%) returned completed questionnaires between 8 to 23 months after the explosions. The majority of individuals reported exposure to fumes, smoke, or dust, while more than two-fifths also reported exposure to blood. In addition to cuts and puncture wounds, the most frequent injury was ear damage. Most individuals experienced health symptoms for less than four weeks, with the exception of hearing problems, which lasted longer. Four-fifths of individuals felt that they had suffered emotional distress and half of them were receiving counseling.

The results indicated that the main long-term health effects, apart from those associated with traumatic amputations, were hearing loss and psychological disorders. While these findings provide a degree of reassurance of the absence of long-term effects, the low response rate limits the extent to which this can be extrapolated to all those exposed to the bombings. Given the importance of immediate assessment of the range and type of exposure and injury in incidents such as the London bombings, and the difficulties in contacting individuals after the immediate response phase, there is need to develop better systems for identifying and enrolling exposed individuals into post-incident health monitoring.

Recent studies demonstrate that early, in-field, basic life support by paramedics improves trauma survival where prehospital transport times are long. So far, no case-control studies of the effect of layperson trauma first responders have been reported. It was hypothesized that trained layperson first responders improve trauma outcomes where prehospital transit times are long.

A rural prehospital trauma system was established in the mine and war zones in Iraq, consisting of 135 paramedics and 7,000 layperson trauma first responders in the villages. In a non-randomized clinical study, the outcomes of patients initially managed in-field by first-responders were compared to patients not receiving first-responder support.

The mortality rate was significantly lower among patients initially managed in-field by first responders (n = 325) compared to patients without first-responder support (n = 1,016), 9.8% versus 15.6%, 95% CI = 1.3−10.0%.

Trained layperson first responders improve trauma outcomes where prehospital evacuation times are long. This finding demonstrates that simple interventions done early—by any type of trained care provider—are crucial for trauma survival. Where the prevalence of severe trauma is high, trauma first-responders should be an integral element of the trauma system.

Simple Triage and Rapid Treatment (START) and more recently developed prehospital casualty triage algorithms are widely used, in part because they are easy to teach and learn, and can be performed rapidly. Every rapid triage protocol has inherent, significant limitations: (1) no mechanism of injury (MOI) considerations; (2) limited assessment points; and (3) no refinement in truly mass-casualty situations where transport of “minor” or “moderate” patients may be delayed.

When rapid initial triage protocols are utilized, a significant triage deficiency (“under-triage”) may occur when “minor” or “moderate” casualties actually are more severely injured than initially triaged. Some MOI produce casualties with subtle or latent (i.e., hidden or delayed) signs and symptoms not considered in the commonly used prehospital triage algorithms. This research did not focus on START or other initial triage screening methods. Instead, it focuses on developing follow-on triage guidance to more specifically prioritize “delayed transport” casualties based upon signs and symptoms related to their MOI.

Using expert opinion and accepted clinical criteria, triage algorithms were developed to re-evaluate patients triaged to “minor” and “moderate” cohorts. A detailed literature search produced a draft list of relevant signs and symptoms for each selected MOI. The lists then were evaluated by a multi-disciplinary panel of experts via an anonymous, mail-based Delphi method. The input shaped triage algorithms for each selected MOI, which then were subjected to a second stage Delphi process.

Consensus was achieved using the Delphi method. The algorithms extend patient assessment beyond the rapid initial triage protocols and incorporate triage criteria specific to each selected injury mechanism or condition: (1) penetrating injuries; (2) unconventional MOI (burns, blast, chemical, radiation); (3) smoke and other inhalation exposure; and (4) injuries with concomitant pregnancy. The full list of triage protocols is designated by the acronym “-PLUS”.

“-PLUS” Prehospital Casualty Triage may supplement the strengths of already existing, widely accepted mass-casualty triage strategies. It does not displace START or other rapid initial triage protocols, but in mass-casualty situations with extensive delays in transport, it provides a method to identify under-triage of seriously injured casualties. “-PLUS” also presents a framework for capturing the triage considerations used by experienced medical providers, and so may provide a valuable teaching tool for training future triage professionals. Further research and field assessment is required.

As proxies for actual emergencies, drills and exercises can raise awareness, stimulate improvements in planning and training, and provide an opportunity to examine how different components of the public health system would combine to respond to a challenge. Despite these benefits, there remains a substantial need for widely accepted and prospectively validated tools to evaluate agencies' and hospitals' performance during such events. Unfortunately, to date, few studies have focused on addressing this need. The purpose of this study was to assess the validity and reliability of a qualitative performance assessment tool designed to measure hospitals' communication and operational capabilities during a functional exercise.

The study population included 154 hospital personnel representing nine hospitals that participated in a functional exercise in Massachusetts in June 2008. A 25-item questionnaire was developed to assess the following three hospital functional capabilities: (1) inter-agency communication; (2) communication with the public; and (3) disaster operations. Analyses were conducted to examine internal consistency, associations among scales, the empirical structure of the items, and inter-rater agreement.

Twenty-two questions were retained in the final instrument, which demonstrated reliability with alpha coefficients of 0.83 or higher for all scales. A three-factor solution from the principal components analysis accounted for 57% of the total variance, and the factor structure was consistent with the original hypothesized domains. Inter-rater agreement between participants' self-reported scores and external evaluators' scores ranged from moderate to good.

The resulting 22-item performance measurement tool reliably measured hospital capabilities in a functional exercise setting, with preliminary evidence of concurrent and criterion-related validity.