Impact of neighborhood disadvantage on posttrauma outcomes after sexual assault.

In the United States, 8,000,000 people seek emergency care for traumatic injury annually. Motor vehicle collisions (MVCs) and sexual assault are two common sources of trauma, with evidence that reduced neighborhood-level socioeconomic characteristics increase posttraumatic pain and stress after an MVC. We evaluated whether neighborhood disadvantage was also associated with physical and mental posttrauma outcomes after sexual assault in a sample of adult women (N = 656) who presented for emergency care at facilities in the United States following sexual assault and were followed for 1 year. Neighborhood characteristics were assessed via the Area Deprivation Index, and self-reported pain, anxiety, depression, and posttraumatic stress disorder (PTSD) symptoms were collected at 6 weeks posttrauma. Adjusted log-binomial regression models examined the association between each clinical outcome and neighborhood disadvantage. Women in more disadvantaged neighborhoods were more likely to be non-White and have lower annual incomes. At 6 weeks posttrauma, the prevalence of clinically significant pain, anxiety, and depressive symptoms more than doubled from baseline (41.7% vs. 18.8%, 62.4% vs. 23.9%, and 55.2% vs. 22.7%, respectively); 40.7% of women also reported PTSD symptoms. Black, Hispanic, and lower-income participants were more likely to report pre- and postassault pain, anxiety, and depression. After adjusting for race, ethnicity, and income, no significant association existed between neighborhood disadvantage and any outcome, ps = .197 - .859. Although neighborhood disadvantage was not associated with posttrauma outcomes, these findings highlight the need for continued research in diverse populations at high risk of adverse physical and mental health symptoms following sexual assault.

Prehospital Surgical Airway Management: An NAEMSP Position Statement and Resource Document.

Bag-valve-mask ventilation and endotracheal intubation have been the mainstay of prehospital airway management for over four decades. Recently, supraglottic device use has risen due to various factors. The combination of bag-valve-mask ventilation, endotracheal intubation, and supraglottic devices allows for successful airway management in a majority of patients. However, there exists a small portion of patients who are unable to be intubated and cannot be adequately ventilated with either a facemask or a supraglottic airway. These patients require an emergent surgical airway. A surgical airway is an important component of all airway algorithms, and in some cases may be the only viable approach; therefore, it is imperative that EMS agencies that are credentialed to manage airways have the capability to perform surgical airways when appropriate. The National Association of Emergency Medical Services Physicians (NAEMSP) recommends the following for emergency medical services (EMS) agencies that provide advanced airway management.A surgical airway is reasonable in the prehospital setting when the airway cannot be secured by less invasive means.When indicated, a surgical airway should be performed without delay.A surgical airway is not a substitute for other airway management tools and techniques. It should not be the only rescue option available.Success of an open surgical approach using a scalpel is higher than that of percutaneous Seldinger techniques or needle-jet ventilation in the emergency setting.

Health care utilization by women sexual assault survivors after emergency care: Results of a multisite prospective study.

BACKGROUND: Approximately, 100,000 US women receive emergency care after sexual assault each year, but no large-scale study has examined the incidence of posttraumatic sequelae, receipt of health care, and frequency of assault disclosure to providers. The current study evaluated health outcomes and service utilization among women in the 6 weeks after sexual assault. METHODS: Women ≥18 years of age presenting for emergency care after sexual assault to twelve sites were approached. Among those willing to be contacted for the study (n = 1080), 706 were enrolled. Health outcomes, health care utilization, and assault disclosure were assessed via 6 week survey. RESULTS: Three quarters (76%) of women had posttraumatic stress, depression, or anxiety, and 65% had pain. Less than two in five reported seeing health care provider; receipt of care was not related to substantive differences in symptoms and was less likely among Hispanic women and women with a high school education or less. Nearly one in four who saw a primary care provider did not disclose their assault, often due to shame, embarrassment, or fear of being judged. CONCLUSION: Most women receiving emergency care after sexual assault experience substantial posttraumatic sequelae, but health care in the 6 weeks after assault is uncommon, unrelated to substantive differences in need, and limited in socially disadvantaged groups. Lack of disclosure to primary care providers was common among women who did receive care.

Perceived Care Quality Among Women Receiving Sexual Assault Nurse Examiner Care: Results From a 1-Week Postexamination Survey in a Large Multisite Prospective Study.

INTRODUCTION: This study examined the perspectives of female patients who had been sexually assaulted regarding the quality of care provided by sexual assault nurse examiners, including whether the patients' perspectives varied by their demographic characteristics and health status before the assault. METHODS: A total of 695 female patients who received care from sexual assault nurse examiners at 13 United States emergency care centers and community-based programs completed standardized surveys 1 week after receiving sexual assault nurse examiners' care for sexual assault. RESULTS: Most patients strongly agreed that the sexual assault nurse examiners provided high-quality care, including taking patients' needs/concerns seriously, not acting as though the assault was the patient's fault, showing care/compassion, explaining the sexual assault examination, and providing follow-up information. The perceptions did not vary by the patients' demographic characteristics or preassault health status. DISCUSSION: Female patients who had been sexually assaulted and who were evaluated at 13 widely geographically distributed sexual assault nurse examiners' programs consistently reported that the sexual assault nurse examiners provided high-quality, compassionate care.

The physiologic effects of a new generation conducted electrical weapon on human volunteers at rest.

Axon Enterprise, Inc. (Axon) released its newest generation conducted electrical weapon (CEW), the T7, in October 2018. In order to compare the effects of this new CEW to prior generations, we used our previously described methodology to study the physiologic effects of CEWs on human volunteers at rest. This was a prospective, observational study of human subjects consisting of two parts. Part 1 was testing a single cartridge (2-probe) exposure. Subjects received a 10-s exposure from the T7 to the back with a 30 cm (12 in.) spread between the two probes. Part 2 was testing a simultaneous two-cartridge (4-probe) exposure. Subjects received a 10-s exposure from the T7 to the back with two cartridges with a 10 cm (4 in.) spread between each probe pair. The probe pairs were arranged cephalad to caudal such that the distance between the top probe of the first cartridge and the bottom probe of the second cartridge was 30 cm (12 in.). Vital signs were measured immediately before and after the exposure. Continuous spirometry was performed. ECG monitoring was performed immediately before and after the exposure. Venous pH, lactate, potassium, CK, catecholamines, and troponin were measured before and immediately after the exposure, at 1-h post-exposure, and again at 24 h. 11 subjects completed part 1 of the study. 9 subjects completed part 2 of the study. No subjects had a dysrhythmia or morphology change in the surface ECG. There were no statistical changes in vital signs pre- and post-exposure. While subjects did not have a statistical change in spirometry parameters pre-exposure to exposure except for a small drop in PETCO2, there was an increase in minute ventilation after the exposure that could have several explanations. A similar pattern was seen with prior generation weapons. No subject had elevated troponin levels. Other blood parameters including venous pH, lactate, potassium, CK, and catecholamines had changes similar to prior generation weapons. Comparison of the data for the single-cartridge exposures against the simultaneous two-cartridge exposures yielded no difference in vital signs, but the minute ventilation was higher for the two-cartridge exposures. The blood data, where there was a difference, was mixed. In our study, the physiologic effects of the Axon T7 are modest, consistent with the electrically-induced motor nerve-driven muscle contraction, and were similar to prior generation weapons.

The Characteristics and Prevalence of Agitation in an Urban County Emergency Department.

STUDY OBJECTIVE: We seek to determine the characteristics and prevalence of agitation among patients in an urban county emergency department (ED). METHODS: This was a prospective observational study of ED patients at an urban Level I trauma center. All ED patients were screened during daily randomized 8-hour enrollment periods. Adult agitated patients, defined as having an altered mental status score greater than 1, were included. Trained research volunteers collected demographics and baseline data, including the presenting altered mental status score, use and type of restraints, and whether any initial sedative was given. The altered mental status score, vital signs, and any medications or treatments given were recorded every 5 minutes thereafter until the patient had an altered mental status score less than 1. Providers were asked to describe clinical events resulting in an intervention occurring during the patient course, including hypotension, vomiting, increased monitoring, use of supplemental oxygen or airway adjunct, or intubation. The provider also completed a checklist to determine the presence of delirium symptoms. RESULTS: A total of 43,838 patients were screened (45.1% women; median age 33 years; range 0 to 102 years). The prevalence of agitation was 2.6% (1,146/43,838; median altered mental status score 2). Of these patients, 84% (969/1,146) required physical restraint and 72% (829/1,146) required sedation with an intramuscular injection. Sedative agents were olanzapine in 39% of patients (442/1,146), droperidol in 20% (224/1,146), haloperidol in 20% (226/1,146), a benzodiazepine in 6% (68/1,146), and ketamine in 5% (52/1,146). Delirium characteristics were observed in 0.6% of patients (260/43,838), representing 23% of agitated patients in the ED. Clinical events were observed in 13% of agitated patients (114/866) without delirium symptoms and 26% (68/260) with delirium symptoms. Characteristics associated with a clinical event included delirium symptoms (odds ratio [OR] 1.6; 95% confidence interval [CI] 1.2 to 2.4), a cause related to a drug other than alcohol (OR 1.7; 95% CI 1.1 to 2.9), or a nondrug-induced cause of agitation (OR 3.5; 95% CI 2.3 to 5.6). CONCLUSION: The prevalence of agitation in the ED was 2.6%. Agitated patients frequently required restraint and sedation, with significant rates of clinical events requiring intervention.

A prospective study of ketamine as primary therapy for prehospital profound agitation.

OBJECTIVE: We investigated the effectiveness of ketamine as a primary therapy for prehospital profound agitation. METHODS: This was a prospective observational study of patients receiving 5mg/kg of intramuscular ketamine for profound agitation, defined as a score of +4 on the Altered Mental Status Scale (AMSS), a validated ordinal scale of agitation from -4 (unresponsive) to +4 (most agitated). The primary outcome was time to adequate sedation (AMSS<+1). Secondary outcomes included need for additional sedatives, intubation frequency, complications associated with ketamine, and mortality. RESULTS: Forty-nine patients were enrolled. Median age was 29years (range 18-66); 76% (37/49) were male. Median time to adequate sedation was 4.2min (95% CI: 2.5-5.9, range 1-25min) and 90% (44/49) had adequate sedation prehospital. Seven patients (14%) received a second sedative prehospital. Intubation occurred in 57% (28/49) of patients. Mechanical ventilation lasted <24h in 82% (23/28) of patients, and <48h in 96% (27/28) of patients. A single physician intubated 36% (10/28) of the patients. Complications related to ketamine included hypersalivation (n=9, 18%), vomiting (n=3, 6%), and emergence reaction (n=2, 4%). One patient died from complications of septic shock on hospital day 29, likely unrelated to ketamine. CONCLUSIONS: In patients with prehospital profound agitation, ketamine provides rapid effective sedation when used as a primary therapy. Intubation was common but accompanied by a short duration of mechanical ventilation and appears to have been subject to individual physician practice variation.

Effect of Body-Worn Cameras on EMS Documentation Accuracy: A Pilot Study.

INTRODUCTION: Current Emergency Medical Services (EMS) documentation practices usually occur from memory after an event is over. While this practice is fairly standard, it is unclear if it can introduce significant error. Modern technology has seen the increased use of recorded video by society to more objectively document notable events. Stationary mounted cameras, cell-phone cameras, and law enforcement officer Body-Worn Cameras (BWCs) are increasingly used by society for this purpose. Video used in this way can often clarify or contradict recall from memory. BWCs are currently not widely used by EMS. The hypothesis is that current EMS documentation practices are inaccurate and that BWCs will have a positive effect on documentation accuracy. METHODS: This prospective, observational study used a convenience sample of paramedics in a simulation lab. The Paramedics wore a BWC and responded to a simulated call of "One Down" (unresponsive from heroin abuse) involving Role Players (RPs). The paramedics received standardized cues from the RPs during the simulation to keep it on track.  The simulation contained many factors of concern (e.g., weapons and drugs in plain view, unattended minors, etc.) and intentional stressors (e.g., distraught family member, uncooperative patient, etc.). Upon completion of the scenario, paramedic documentation occurred from memory on an electronic template.  After initial documentation, paramedics viewed their BWC recording and were allowed to make tabulated changes. Changes were categorized by a priori criteria as minor, moderate, or major. RESULTS: Ten paramedics participated with an average age of 33.3 years (range 22-43), 8 males and 2 females. The average length of paramedic career experience was 7.7 years (range 2 months to 20 years). There were 71 total documentation changes (7 minor, 51 moderate, 13 major) made after video review. Linear regression (ANCOVA) indicated changes made indirectly correlated with years of experience (coefficient 8.27, 4.22-12.3, 95% CI, p = 0.002), but all made some changes. CONCLUSION: Current EMS documentation practices demonstrate significant inaccuracy regardless of years of experience. Use of BWC technology appears to significantly improve EMS documentation accuracy in this pilot study.

American Academy of Emergency Medicine Position Statement: Safety of Droperidol Use in the Emergency Department.

BACKGROUND: Droperidol (Inapsine®, Glaxosmithkline, Brent, UK) is a butyrophenone used in emergency medicine practice for a variety of uses. QT prolongation is a well-known adverse effect of this class of medications. Of importance to note, QT prolongation is noted with multiple medication classes, and droperidol increases QT interval in a dose-dependent fashion among susceptible individuals. The primary goal of this literature search was to determine the reported safety issues of droperidol in emergency department management of patients. METHODS: A MEDLINE literature search was conducted from January 1995 to January 2014 and limited to human studies written in English for articles with keywords of droperidol/Inapsine. Guideline statements and nonsystematic reviews were excluded. Studies identified then underwent a structured review from which results could be evaluated. RESULTS: There were 542 papers on droperidol screened, and 35 appropriate articles were rigorously reviewed in detail and recommendations given. CONCLUSION: Droperidol is an effective and safe medication in the treatment of nausea, headache, and agitation. The literature search did not support mandating an electrocardiogram or telemetry monitoring for doses < 2.5 mg given either intramuscularly or intravenously. Intramuscular doses of up to 10 mg of droperidol seem to be as safe and as effective as other medications used for sedation of agitated patients.

Hand sanitization rates in an urban emergency medical services system.

BACKGROUND: Hand sanitizing, although often a "forgotten" practice, has been demonstrated to be a leading factor in preventing infectious disease transmission in health care environments. Previous studies have looked at hand-sanitization rates in hospital settings, but we are aware of very few describing this in the prehospital setting. Because emergency medical services (EMS) providers are potential vectors of infectious disease spread, it is important to know if their hand-sanitization practices are sufficient. OBJECTIVE: The objective of this study was to describe the hand-sanitization rates for a convenience sample of an urban EMS system. METHODS: A convenience sampling of paramedics employed by an urban paramedic ambulance service (55,000+ runs/year) underwent prospective, blinded observation during a 6-month period. Observations were conducted by paramedic students during 8-h and 12-h shifts. Recorded data points included any modality of hand sanitizing (e.g., soap/water, anti-germicidal gels or foams, anti-germicidal wipes) immediately surrounding all patient contacts and meals. Glove use during patient contact was also recorded. Trips to the restroom were not directly observed and hand sanitizing after this event was assumed. Duration of any sanitizing event was not recorded. Data points were analyzed using simple and descriptive statistics. RESULTS: Fifty-three paramedics (of 108 paramedic employees) were observed during 258 patient contacts. Paramedics were observed to sanitize their hands after 162 of these (62.8%). If hand sanitizing is assumed in the 16 immediate trips to the restroom after patient contact, the compliance rate increased to 68.9%. Hands were sanitized immediately before patient contact only three times (1.1%) and nine times during patient contact (3.5%). Gloves were not worn during 32 of the patient contacts (12.4%). Hand sanitizing occurred before 8 of 42 meals (19%) and after 25 of 42 meals (59.5%). CONCLUSIONS: Hand-sanitization events were noted in this convenience sample group a majority of times in association with patient contact. However, there appears to be substantial room for improvement. This suggests that EMS services should work to improve hand-sanitization compliance. Increased instruction, education, or access to hygiene equipment should be investigated as avenues to improve future compliance.

Physiologic effects of a new-generation conducted electrical weapon on human volunteers.

BACKGROUND: Conducted electrical weapons (CEWs) are used by law enforcement to restrain or repel potentially violent persons. The TASER X2 CEW is a next-generation device with new technology, including new electrical waveform and output specifications. It has not previously been studied in humans. OBJECTIVE: The objective of this study was to evaluate the human physiologic effect of a new-generation CEW. METHODS: This was a prospective, observational human study. Volunteers received a 10-s exposure via deployed probes from an X2 CEW in the abdomen and upper thigh. Measured data included vital signs; 12-lead electrocardiograms; and blood serum biomarkers before, immediately after, and 24 h post exposure. Biomarkers measured included pH, lactate, potassium, creatine kinase (CK), and troponin-I. Real-time spirometry and echocardiography were performed before, during, and after the exposure. RESULTS: Ten volunteers completed the study. There were no important changes in vital signs or potassium. Median increase in lactate as a consequence of the exposure was 1.2 mg/dL (range 0.6-2.8 mg/dL). Median change in pH was -0.031 (range -0.011 to -0.067). No subject had a positive troponin. Median change in CK at 24 h was 313 ng/mL (range -40 to 3418 ng/mL). There was no evidence of respiratory impairment. Baseline median minute ventilation was 14.2 L/min, increased to 21.6 L/min intra-exposure (p = 0.05), and remained elevated at 21.6 L/min post exposure (p = 0.01). CONCLUSIONS: There was no evidence of dangerous physiology found in the measured parameters. The physiologic effects of the X2 CEW are similar to older-generation CEWs. We encourage further study to validate these results.

Splenic artery aneurysm: an important cause of hemoperitoneum and shock.

BACKGROUND: Splenic artery aneurysm ruptures are rare and highly morbid events that are frequently associated with pregnancy. However, approximately 15% may occur in men, and it is important to have this possibility in the differential diagnosis in cases of hemoperitoneum and hemorrhagic shock. Rapid diagnosis and treatment is essential to survival. OBJECTIVES: The aim of this report is to educate emergency physicians on the early recognition and treatment of this life-threatening event and to increase the awareness of this condition in male patients. CASE REPORT: We describe the evaluation and management of two cases of splenic artery rupture in male patients with unique presentations. CONCLUSION: Splenic artery aneurysm ruptures should be considered in the differential diagnosis in any patient with undifferentiated shock. Early diagnosis and treatment can save lives.

An evaluation of two conducted electrical weapons using a swine comparative cardiac safety model.

Arrest-related deaths proximate to the use of a conducted electrical weapon (CEW) continue to generate controversy despite a better understanding of the multi-factorial nature of many of these deaths. With the rapid adoption of this technology by law enforcement, and the proliferation of companies entering the marketplace, it is important to have a method to assess the relative safety of these weapons. We had previously developed a model to assess the relative cardiac safety of CEWs. In this study, we use this model to compare the TASER X2 and the Karbon Arms MPID. Our results suggest that the TASER X2 may have an improved cardiac safety margin over the Karbon Arms MPID as determined by a smaller area of cardiac pacing on the anterior chest in our model. This model seems to offer a reproducible means of comparing the cardiac effects of CEWs.

The neurocognitive effects of simulated use-of-force scenarios.

While the physiologic effects of modern conducted electrical weapons (CEW) have been the subject of numerous studies, their effects on neurocognitive functioning, both short-term and long-term, are less well understood. It is also unclear how these effects compare to other use-of-force options or other arrest-related stressors. We compared the neurocognitive effects of an exposure to a TASER(®) (TASER International, Inc, Scottsdale, AZ) X26™ CEW to four other use-of-force scenarios during a training exercise using a well-established neurocognitive metric administered repeatedly over 1 h. Overall, we found that there was a decline in neurocognitive performance immediately post-scenario in all groups, but this effect was transient, of questionable clinical significance, and returned to baseline by 1 h post-scenario.

Conducted electrical weapons within healthcare: a comprehensive use of force model.

Healthcare settings are experiencing increased amounts of violent activity that are challenging to the health care security profession. There is difficulty in addressing this issue completely. Some of this difficulty is because of factors that include inexperienced and untrained clinicians and administrators that are often the decision-makers in the health care setting. As part of an effective solution, we propose that a security plan, including a comprehensive use of force program incorporating conducted electrical weapons, is a necessary and best-practice goal. This paper outlines the background of the problem and discusses the challenges we encountered in reaching this goal as well as the benefits we have discovered along the way. This paper will be beneficial to any healthcare security professional that is interested in enhancing or improving their current health care security use of force model to further counter the increasing violent activity in their respective healthcare setting.

Relationship between blood alcohol concentration and observable symptoms of intoxication in patients presenting to an emergency department.

AIMS: Clinical and medico-legal decisions often require knowledge of alcohol impairment that is not necessarily revealed by an individual's appearance, and in turn, may not necessarily reflect level of blood alcohol. This study compares clinical signs and symptoms with measured and estimated blood alcohol concentrations (BACs). METHOD: Individuals (n = 384) perceived to be under the influence of alcohol at presentation to an emergency department were assessed by physicians and nurses for clinical features of alcohol intoxication (alcohol symptom checklist, ASC), who were asked to estimate the patient's BAC. Relation to measured BACs was assessed by correlation. RESULTS: BACs ranged from 0 to 418 mg/100 ml. The correlation between the estimated BAC and measured BAC was r = 0.513. Measured BAC correlated with ASC r = 0.250. In subjects without a history of chronic drinking (n = 134) there was a better (P < 0.05) correlation with the ASC score (r = 0.363) versus measured BAC compared with that for chronic drinkers (r = 0.154). The positive predictive value of estimating BAC at or above a particular BAC cut-off decreased from 93.2% at 100 mg/100 ml to 37.7% at 300 mg/100 ml (P < 0.05). CONCLUSIONS: Measured BAC does not correlate well with the outward physical signs of intoxication, especially for chronic drinkers. There is a need for further education on how tolerance masks clinical signs of intoxication for the chronic drinker. BACs should be measured especially in the obtunded where no history (symptoms) can be given by the patient.

Successful management of excited delirium syndrome with prehospital ketamine: two case examples.

Excited delirium syndrome (ExDS) is a medical emergency usually presenting first in the prehospital environment. Untreated ExDS is associated with a high mortality rate and is gaining recognition within organized medicine as an emerging public safety problem. It is highly associated with male gender, middle age, chronic illicit stimulant abuse, and mental illness. Management of ExDS often begins in the field when first responders, law enforcement personnel, and emergency medical services (EMS) personnel respond to requests from witnesses who observe subjects exhibiting bizarre, agitated behavior. Although appropriate prehospital management of subjects with ExDS is still under study, there is increasing awareness of the danger of untreated ExDS, and the danger associated with the need for subject restraint, whether physical or chemical. We describe two ExDS patients who were successfully chemically restrained with ketamine in the prehospital environment, and who had good outcomes without complication. These are among the first case reports in the literature of ExDS survival without complication using this novel prehospital sedation management protocol. This strategy bears further study and surveillance by the prehospital care community for evaluation of side effects and unintended complications.

An evaluation of two conducted electrical weapons and two probe designs using a swine comparative cardiac safety model.

Despite human laboratory and field studies that have demonstrated a reasonable safety profile for TASER brand conducted electrical weapons (CEW), the results of some swine studies and arrest related deaths temporal to the use of the CEWs continue to raise questions regarding cardiac safety. TASER International, Inc., has released a new CEW, the TASER X2, touted to have a better safety profile than its long-standing predecessor, the TASER X26. We have developed a model to assess the relative cardiac safety of CEWs and used it to compare the TASER X2 and the TASER X26. This safety model was also used to assess the relative safety of an experimental probe design as compared to the standard steel probe. Our results suggest that the TASER X2 has an improved safety margin over the TASER X26. The new probe design also has promise for enhanced cardiac safety, although may have some disadvantages when compared to the existing design which would make field use impractical.

Prehospital chemical restraint of a noncommunicative autistic minor by law enforcement.

When responders are dealing with an agitated patient in the field, safety for all involved may sometimes only be accomplished with physical or chemical restraints. While experiences using chemical restraint in the prehospital setting are found in the medical literature, the use of this by law enforcement as a first-response restraint has not previously been described. We report a case of successful law enforcement-administered sedation of a noncommunicative, autistic, and violent minor using intramuscular droperidol and diphenhydramine. Although this case has some unique characteristics that allowed chemical restraint to be given by the law enforcement agency, it calls attention to some specific prehospital issues that need to be addressed when dealing with autistic patients with extreme agitation.