Review, clinical update, and practice guidelines for excited delirium syndrome.

Excited delirium syndrome (ExDS) is a term used to describe patients experiencing a clinical condition characterized by bizarre and aggressive behavior, often in association with the use of chronic sympathomimetic drug abuse. The agitated and disruptive behavior of persons with ExDS often results in a call to police resulting in an arrest for disorderly conduct. The suspect's inability to comply with police commands during the arrest frequently results in a struggle and the use of physical or chemical control measures, including the use of conductive energy weapons (CEWs). Deaths from this hypermetabolic syndrome are infrequent but potentially preventable with early identification, a coordinated aggressive police intervention, and prompt medical care. Preliminary experiences suggest that ExDS is a medical emergency treated most effectively using a coordinated response between police officers and emergency medical providers. Once the person suspected of experiencing ExDS is in custody, medical providers should rapidly sedate noncompliant patients with medications such as ketamine or an antipsychotic drug such as haloperidol in combination with a benzodiazepine drug such as midazolam or diazepam. Once sedated, patients should undergo a screening medical assessment and undergo initial treatment for conditions such as hyperthermia and dehydration. All patients exhibiting signs of ExDS should be transported rapidly to a medical treatment facility for further evaluation and treatment. This article reviews the epidemiology, clinical presentation, diagnosis, and treatment options for ExDS.

Clinical encounters in tactical medicine: a mission-specific analysis of the Maryland State Police experience.

INTRODUCTION: The Maryland State Police (MSP) Tactical Medical Unit (TMU) provides tactical emergency medical support (TEMS) through the deployment of specially trained state trooper tactical paramedics. The MSP TMU maintains an operational database of all mission related medical activity. This information constitutes a robust dataset derived from real world operational medicine experiences. METHODS: A retrospective analysis of de-identified entries from the MSP TMU operational response database was performed for the 5-year period of 2007?2013. A summative analysis of missions, as well as a subgroup analysis of types of patients encountered, was performed to further characterize patient encounters based on the type of law enforcement tactical mission. RESULTS: Analysis was performed on 1,042 tactical missions, of which there were 367 total patient encounters during the study period. The majority (67%; 246/367) of patients encountered were law enforcement tactical team personnel. The most frequently occurring mission, by type, was high-risk warrant service, accounting for 45% (470/1,042) of all missions in this series. Law enforcement training support missions comprised 25% (259/1,042), and 15% (157/1,042) of all missions in the database were medical standbys for law enforcement operations. The highest number of patient contacts were associated with training activities, resulting in 29% (108/367) of clinical encounters. The next most common mission associated with patient encounters was high-risk warrant service (24%; 88/367). CONCLUSION: The 5-year analysis conducted in this study represents the largest known retrospective assessment of a state police tactical medical program. Training activities resulted in the highest number of patient encounters by this program, with law enforcement/tactical team personnel comprising the majority of patient encounters. The majority of chief complaints encountered were non?life threatening and reinforce the need for expanded scope of practice training and enhanced treatment protocols for tactical medics.

Methicillin-resistant staphylococcus aureus nasal colonization prevalence among Emergency Medical Services personnel.

INTRODUCTION: The prevalence of Methicillin-resistant Staphylococcus aureus (MRSA) nasal colonization among Emergency Medical Services (EMS) personnel is not well studied. Methicillin-resistant Staphylococcus aureus colonization can be a health hazard for both EMS personnel and patients. The aim of this study was to quantify the prevalence of MRSA colonization among EMS personnel. This study will help the scientific community understand the extent of this condition so that further protocols and policies can be developed to support the health and wellbeing of EMS personnel. Hypothesis/ Problem The hypothesis of this study was that the prevalence of MRSA colonization among EMS personnel is significantly higher than among the general population. METHODS: This was a cross-sectional study. A total of 110 subjects were selected from two major US Mid-Atlantic fire departments. Methicillin-resistant Staphylococcus aureus colonization was detected by nasal swabbing. Nasal swabs were inoculated onto a special agar medium (C-MRSAgar) with polymerase chain reaction testing performed. One-sided binomial distribution at the Study Size 2.0 Web calculator was used. Using the Web calculator, p (H0 proportion) = 1.5%; a difference (H1-H0) 'Δ' = 4.53% can be detected at α = 5% and power = 80% with N = 110. RESULTS: Samples were collected from 110 volunteers. Seven samples were positive for MRSA, resulting in a prevalence of 7/110 or 6.4% (95% CI, 1.8%-11%; P < .0003) compared with a 1.5% prevalence of MRSA colonization among the general population. CONCLUSION: There is evidence that EMS personnel have a higher prevalence of MRSA colonization than the general population. This can be a risk to patients and can be recognized as an occupational hazard.

A public health enforcement initiative to combat underage drinking using Emergency Medical Services call data.

OBJECTIVE: The objective of this study was to determine whether Emergency Medical Services (EMS) records can identify bars that serve a disproportionate number of minors, and if government officials will use this data to direct underage drinker enforcement efforts. METHODS: Emergency Medical Services call logs to all bars in the study area were cross-referenced with a local hospital's records. The records of patients with alcohol-related complaints were analyzed. Outlier bars were identified, and presented to government officials who completed a survey to assess if this information would prompt new enforcement efforts. RESULTS: Emergency Medical Services responded to 149 establishments during the study period. Eighty-four responses were distributed across six bars, and 78 were matched with the hospital's records. Fifty-one patients, 18 (35%) of whom were underage, were treated for alcohol intoxication, with 46% of the cases originating from four bars. Government officials found the information useful, and planned to initiate new operations based on the information. CONCLUSIONS: Alcohol consumption by minors can lead to life-long abuse, with high personal, financial, and societal costs. Emergency Medical Services response data and hospital records can be used to identify bars that allow underage drinking, which is useful in directing law enforcement efforts.

Bacterial pathogens in ambulances: results of unannounced sample collection.

UNLABELLED: The concern that the health care environment may harbor a substantial reservoir of infectious agents has been vigorously examined by microbiology and infectious disease experts. Although universal precautions and disposable equipment reduces risks to patients and providers, the ambulance remains vulnerable to bacterial contamination from biological secretions. Additionally, the nature of emergency medical services creates pressures on prehospital care providers. OBJECTIVE: We hypothesized that a discrepancy exists between the expectation of disinfection of reusable equipment in emergency medical services (EMS) and the cleaning that actually occurs. METHODS: We chose five areas within the ambulance for specimen collection for their reasoned propensity to yield a large spectrum of bacteria. Four first-due ambulances were selected for culturing. The crews did not have advance knowledge of the study or sample collection. Specific identifications with antibiotic susceptibility were completed, identifying three multidrug resistant organisms. RESULTS: Specimens from all four ambulances grew moderate-to-large quantities of environmental and skin flora. Newer, automated microbiological techniques and concerns regarding multiple-drug-resistant organism prevalence as well as the potential for biological warfare make complete identification more important. CONCLUSIONS: This study examined the bacterial pathogens found in EMS vehicles. Four of the seven species isolated were substantial nosocomial pathogens, and three of these four possess formidable antibiotic resistance patterns. All of the organisms detected are susceptible to the disinfectant agents currently in common use by EMS agencies.

Community-acquired pneumonia in casualty: etiology, clinical features, diagnosis, and management (or a look at the "new" in pneumonia since 2002).

PURPOSE OF REVIEW: Community-acquired pneumonia, because of its substantial treatment costs, incidence, and mortality, is an aggressively researched diagnosis. In this review, we highlight new developments in the diagnosis, etiology, pathophysiology, treatment, and prevention of community-acquired pneumonia published since April 2002. RECENT FINDINGS: The combined end points of improved patient care and conservation of health care resources have prompted several studies examining current professional society community-acquired pneumonia guidelines. In general, patients treated with the recommended third-generation cephalosporin and macrolide or an antipneumococcal fluoroquinolone when indicated have fared better, including reduced overall costs, inpatient days, and mortality, than those receiving alternative treatments. Etiologic identification efforts by traditional methods, blood and sputum cultures, are being questioned owing to poor success rates and, even when positive, are being underused or ignored in antibiotic selection and patient management. Newer diagnostic tests are becoming commercially available, along with tests for biologic markers that have been only recently identified as contributors to, or prognosticators of, community-acquired pneumonia. Because antibiotic resistance remains a major obstacle to successful patient treatment, prevention or mitigation of community-acquired pneumonia is gaining increasing popularity through more aggressive pneumococcal and influenza vaccination of at risk groups, even before hospital discharge from a community-acquired pneumonia admission. SUMMARY: Although prevention is our best defense, current community-acquired pneumonia treatment guidelines are effective for treatment and cost containment. However, they should be scrutinized in light of clinical utilization data now entering the literature regarding their testing recommendations. Providers should consider encouraging focused culturing of sicker patients and those with significant comorbidities.

Effect of lunar cycle on temporal variation in cardiopulmonary arrest in seven emergency departments during 11 years.

OBJECTIVE: To determine the effect of the phase of the full and new moon on the variation in the number of daily cardiopulmonary resuscitations. DESIGN: A retrospective analysis of a computerized billing database of emergency department visits in a cohort of seven northern New Jersey (USA) emergency departments. PARTICIPANTS: Consecutive patients seen by emergency department physicians over an 11-year period (1 January 1988 to 31 December 1998). We determined the timing of full and new moon days from the National Oceanographic and Aeronautic Administration website. INTERVENTIONS: Time series regression estimated the independent effect of full and new moon days on the daily variation in cardiopulmonary resuscitations. Tests of statistical significance were made at alpha=0.05. RESULTS: A total of 2 370 233 emergency department visits were made during the 4018-day period of study. A total of 6827 had an emergency department diagnosis of cardiopulmonary resuscitation. We found no significant difference in the occurrence of cardiopulmonary resuscitations during the full moon (P=0.97). On average there were 6.5% fewer cardiopulmonary resuscitations during new moon days (P=0.02; 95% confidence interval 1.3-11.7%). CONCLUSION: Contrary to the traditional belief that more cardiopulmonary resuscitations occur during the full moon, we were unable to identify a significant effect during full moon days. However, there were on average 6.5% fewer cardiopulmonary resuscitations during new moon days than other days.

Ambulance snatching: how vulnerable are we?

Out of concern that ambulances might be targeted for hijack for terrorism purposes, we observed security-related behaviors of a cross-section of ambulance crews and their vehicles in Emergency Department ambulance bays. We sent observers to a convenience sample of trauma and suburban Emergency Department ambulance entrances in several states. We observed 151 total ambulance arrivals. Overall, the average time present was 21.5 min, 23.2% of units were left with the engine running, 26.5% were left open, 90.1% were left unattended, 84.1% were unlocked, and 16.6% had a non-crew visitor in the ambulance bay. Several issues were identified demonstrating potential "attractiveness" to individuals who may wish to disrupt Emergency Medical Services or steal an emergency vehicle. We are concerned that this is the case at the majority of ambulance bays in our country. Emergency services agencies should take steps to train their personnel to secure the ambulance.

Effects on local emergency departments of large-scale urban chemical fire with hazardous materials spill.

INTRODUCTION: On 18 July 2001, a train hauling hazardous materials, including hydrochloric acid, hydrofluoric acid, and acetic acid, derailed in the city of Baltimore, Maryland, resulting in a fire that burned under a downtown street for five days. Firefighters were stymied in their efforts to extinguish the fire, and the city was subjected to thick smoke for several days. OBJECTIVES: To determine whether an urban chemical fire with a hazardous materials spill resulted in a detectable public health impact, and to demographically describe the at-risk population for potential smoke and chemical exposure. METHODS: The United States Centers for Disease Control and Prevention (CDC) was consulted about possible side effects from chemical exposure. Total numbers of emergency department (ED) patients and admissions from 15:00 hours (h), 15 July 2001 to 15:00 h, 21 July 2001 were collected from five local hospitals. Patient encounters citing specified chief complaints from 15:00 h, 15 July to 15:00 h, 18 July (pre-accident) were compared with the period from 15:00 h, July 18 to 15:00 h, 21 July (post-accident). Data were analyzed using Fisher's exact test. The United States Census Bureau's Topologically Integrated Geographic Encoding and Referencing (TIGER) digital database of geographic features and ArcView Geographic Information Systems (GIS) were used to create maps of Baltimore and to identify populations at-risk using attribute census data. RESULTS: There were 62,808 people residing in the immediate, affected area. The mean of the values for age was 33.7 +/- 3.2 years (standard deviation; range = 16 yrs) with 49% (30,927) males and 51% (31,881) females. A total of 2,922 ED patient encounters were screened. Chief complaints included shortness of breath, pre-event = 109 vs. post-event = 148; chest complaints = 90 vs. 113; burns and/or skin irritation = 45 vs. 42; eye irritation 26 vs. 34; throat irritation = 33 vs. 27; and smoke exposure = 0 vs. 15. There was a statistically significant increase (p < 0.05) for shortness of breath and smoke exposure-related complaints. No statistically significant increase in numbers of admitted patients with these complaints was found. CONCLUSIONS: In the setting of a large-scale urban chemical fire, local EDs can expect a significant increase in the number of patients presenting to EDs with shortness of breath and/or smoke inhalation. Most do not require in-patient hospitalization. Careful assessment of impact on local EDs should be considered in future city-accident planning. Some official warnings were widely misinterpreted or ignored. Public education on potential hazards and disaster preparedness targeted to populations at-risk should receive a high priority. Geographic information systems (GIS) may serve as useful tools for identifying demographics of populations at-risk for disaster planning and responses.