The Yale New Haven Center for Emergency Preparedness and Disaster Response (YNH-CEPDR) has worked in the United States with state and local health and medical organizations to evaluate critical decision making activities and to develop decision making tools and protocols to enhance decision making in a time sensitive environment. YNH-CEPDR has also worked with international organizations and US federal agencies to support situational awareness activities in simulated and real world events.

During this session YNH-CEPDR will share the best practices from recent events such as the H1N1 response and the Haiti Earthquake. Participants will be engaged in discussions regarding overall framework for successful information collection, analysis and dissemination to support decision making based on these experiences. This session will also incorporate concepts provided by the US National Incident Management System (NIMS) and the Incident Command System (ICS), specifically through the development of Situational Reports (SitReps), Incident Action Plans (IAP) and Job Action Sheets as methods to implement the framework and concepts discussed. Participants will be led through a series of scenario-based discussions to allow application of critical decision making factors to their organization. At the conclusion of the session, participants will be able to identify next steps for enhancing the synchronization of critical decision making and information analysis within their organizations.

In fostering community and culture through entertainment in shared spaces, performing arts venues have also become targets of terrorism. A greater understanding of these attacks is needed to assess the risk posed to different types of venues, to inform medical disaster preparedness, to anticipate injury patterns, and to reduce preventable deaths.

A search of the Global Terrorism Database (GTD) was conducted from the year 1970 through 2019. Using pre-coded variables for target/victim type and target subtype, attacks involving “business” and “entertainment/cultural/stadium/casino” were identified. Attacks targeting performing arts venues were selected using the search terms “theater,” “theatre,” “auditorium,” “center,” “hall,” “house,” “concert,” “music,” “opera,” “cinema,” and “movie.” Manual review by two authors was performed to confirm appropriateness for inclusion of entries involving venues where the primary focus of the audience was to view a performance. Descriptive statistics were performed using R (version 3.6.1).

A total of 312 terrorist attacks targeting performing arts venues were identified from January 1, 1970 through December 31, 2019. Two-hundred nine (67.0%) attacks involved cinemas or movie theaters, 80 (25.6%) involved unspecified theaters, and 23 (7.4%) specifically targeted live music performance venues. Two-hundred thirty-four (75.0%) attacks involved a bombing or explosion, 50 (16.0%) damaged a facility or infrastructure, and 17 (5.4%) included armed assault. Perpetrators used explosives in 234 (75.0%) attacks, incendiary weapons in 50 (16.0%) attacks, and firearms in 19 (6.1%) attacks. In total, attacks claimed the lives of 1,307 and wounded 4,201 persons. Though fewer in number, attacks against music venues were responsible for 29.4% of fatalities and 35.0% of those wounded, and more frequently involved the use of firearms. Among 95 attacks falling within the highest quartile for victims killed or wounded (>two killed and/or >ten wounded), 83 (87.4%) involved explosives, seven (7.4%) involved firearms, and three (3.2%) involved incendiary methods.

While uncommon, terrorist attacks against performing arts venues carry the risk for mass casualties, particularly when explosives and firearms are used.

Patients with respiratory failure are usually mechanically ventilated, mostly with fraction of inspired oxygen (FiO2) > 0.21. Minimizing FiO2 is increasingly an accepted standard. In underserved nations and disasters, salvageable patients requiring mechanical ventilation may outstrip oxygen supplies.

The hypothesis of the present study was that mechanical ventilation with FiO2 = 0.21 is feasible. This assumption was tested in an Acute Respiratory Distress Syndrome (ARDS) model in pigs.

Seventeen pigs were anesthetized, intubated, and mechanically ventilated with FiO2 = 0.4 and Positive End Expiratory Pressure (PEEP) of 5cmH2O. Acute Respiratory Distress Syndrome was induced by intravenous (IV) oleic acid (OA) infusion, and FiO2 was reduced to 0.21 after 45 minutes of stable moderate ARDS. If peripheral capillary oxygen saturation (SpO2) decreased below 80%, PEEP was increased gradually until maximum 20cmH2O, then inspiratory time elevated from one second to 1.4 seconds.

Animals developed moderate ARDS (mean partial pressure of oxygen [PaO2]/FiO2 = 162.8, peak and mean inspiratory pressures doubled, and lung compliance decreased). The SpO2 decreased to <80% rapidly after FiO2 was decreased to 0.21. In 14/17 animals, increasing PEEP sufficed to maintain SpO2 > 80%. Only in 3/17 animals, elevation of FiO2 to 0.25 after PEEP reached 20cmH2O was needed to maintain SpO2 > 80%. Animals remained hemodynamically stable until euthanasia one hour later.

In a pig model of moderate ARDS, mechanical ventilation with room air was feasible in 14/17 animals by elevating PEEP. These results in animal model support the potential feasibility of lowering FiO2 to 0.21 in some ARDS patients. The present study was conceived to address the ethical and practical paradigm of mechanical ventilation in disasters and underserved areas, which assumes that oxygen is mandatory in respiratory failure and is therefore a rate-limiting factor in care capacity allocation. Further studies are needed before paradigm changes are considered.

There is evidence to suggest that patients delayed seeking urgent medical care during the first wave of the coronavirus disease 2019 (COVID-19) pandemic. A delay in health-seeking behavior could increase the disease severity of patients in the prehospital setting. The combination of COVID-19-related missions and augmented disease severity in the prehospital environment could result in an increase in the number and severity of physician-staffed prehospital interventions, potentially putting a strain on this highly specialized service.

The aim was to investigate if the COVID-19 pandemic influences the frequency of physician-staffed prehospital interventions, prehospital mortality, illness severity during prehospital interventions, and the distribution in the prehospital diagnoses.

A retrospective, multicenter cohort study was conducted on prehospital charts from March 14, 2020 through April 30, 2020, compared to the same period in 2019, in an urban area. Recorded data included demographics, prehospital diagnosis, physiological parameters, mortality, and COVID-status. A modified National Health Service (NHS) National Early Warning Score (NEWS) was calculated for each intervention to assess for disease severity. Data were analyzed with univariate and descriptive statistics.

There was a 31% decrease in physician-staffed prehospital interventions during the period under investigation in 2020 as compared to 2019 (2019: 644 missions and 2020: 446 missions), with an increase in prehospital mortality (OR = 0.646; 95% CI, 0.435 – 0.959). During the study period, there was a marked decrease in the low and medium NEWS groups, respectively, with an OR of 1.366 (95% CI, 1.036 – 1.802) and 1.376 (0.987 – 1.920). A small increase was seen in the high NEWS group, with an OR of 0.804 (95% CI, 0.566 – 1.140); 2019: 80 (13.67%) and 2020: 69 (16.46%). With an overall decrease in cases in all diagnostic categories, a significant increase was observed for respiratory illness (31%; P = .004) and cardiac arrest (54%; P < .001), combined with a significant decrease for intoxications (-58%; P = .007). Due to the national test strategy at that time, a COVID-19 polymerase chain reaction (PCR) result was available in only 125 (30%) patients, of which 20 (16%) were positive.

The frequency of physician-staffed prehospital interventions decreased significantly. There was a marked reduction in interventions for lower illness severity and an increase in higher illness severity and mortality. Further investigation is needed to fully understand the reasons for these changes.

In the United States, tornadoes are the third leading cause of fatalities from natural disasters1. To aid prevention and mitigation of tornado-related morbidity and mortality, improvement in standardizing tornado specific threat analysis terminology was assessed. The largest number of tornado-related fatalities has occurred in the state of Texas for over a hundred years. The occurrence of tornadic clusters or “outbreaks” has not been formally standardized. The concept of “tornado outbreaks” is better defined and its role in fatality mitigation is addressed in this Institutional Review Board (IRB) approved study.

To understand the role of “tornado outbreaks” related clusters in Texas in relationship to morbidity and mortality.

This IRB approved (IRB2017- 0507) research study utilized GIS tools and statistical analysis of historical data to examine the relationship between tornado severity (based on the Fujita Scale), the number of tornadoes, and the trends in morbidity and mortality. This study was funded in part from The National Science Foundation grant (NSF Grant #1560106) in support of the CyberHealthGIS Research Experience for Undergraduates (REU).

A statistically significant difference was demonstrated between the severity of a tornado and related morbidity and mortality during “tornado outbreaks” in Texas during a defined 30-year period.

Understanding the role and discerning the impacts of “tornado outbreaks” as related to tornado severity has critical implications to disaster preparedness. Applications of this conclusion may improve shelter planning/preparation, timely warning, and educating the at-risk public. Subsequently, examining the likelihood and improved descriptions of “tornado outbreaks” may aid in reducing the number of tornado-related injuries and fatalities nationally.