Caring for Children With Autism in an Emergency Department Setting.

OBJECTIVE: Patients with autism spectrum disorder (ASD) and other developmental delays represent a unique patient population. We described a cohort of children with ASD cared for in an emergency department (ED) setting and the specific health care resources used for their care. METHODS: This is an observational study of consecutive children (<18 years) with ASD presenting for ED care. Comparisons of interest were evaluated using Wilcoxon rank sum and χ2 tests. Odds ratios (ORs) are reported with 95% confidence intervals (CIs). RESULTS: There were 238 ED visits over a 9-month period among 175 children. Median age was 9 years, and 62% were male. Reasons for ED visit were medical (51%), psychiatric (18%), injury/assault/trauma (16%), neurological (11%), and procedure related (4%.)Children with psychiatric complaints had longer lengths of stay than those with other chief complaints (P < 0.0001; OR, 5.8; CI, 2.8-11.9) and were more likely to have urine (OR, 8.5; CI, 3.9-18.3) and blood work ordered (OR, 2.5; CI, 1.2-4.9) and less likely to have x-rays ordered (OR, 0.10; CI, 0.02-0.44).Eighteen (8%) children received sedation. None required physical restraint. A total of 30% were admitted to the hospital. Those with psychiatric complaints were more likely to be admitted (54.8% vs 24.5%; OR, 3.7; CI, 1.9-7.4) than those with other chief complaints. CONCLUSIONS: The care for children with ASD varied with age and health care issues. There was a high prevalence of psychiatric complaints, and many of these children were boarded in the ED waiting for an inpatient psychiatric bed. Those with psychiatric complaints were more likely to have multiple tests ordered and were more likely to be admitted.

Safety of parenteral ketorolac use for analgesia in geriatric emergency department patients.

OBJECTIVE: To assess the safety of a single dose of parenteral ketorolac for analgesia management in geriatric emergency department (ED) patients. METHODS: This was a retrospective study of all administrations of parenteral ketorolac to adults ≥65 years of age and matched controls. The primary outcome was the occurrence of any of the following adverse events within 30 days of the ED visit: gastrointestinal bleeding, intracranial bleeding, acute decompensated heart failure, acute coronary syndrome, dialysis, transfusion, and death. The secondary outcome was the occurrence of an increase in serum creatinine of ≥1.5 times baseline within 7 and 30 days of the ED visit. RESULTS: There were 480 patients included in the final analysis, of which 120 received ketorolac (3: 1 matching). The primary outcome occurred in 14 of 360 patients who did not receive ketorolac and 2 of 120 ketorolac patients (3.9% vs 1.7%, p = 0.38; OR 2.39, 95% CI 0.54-10.66). There was no occurrence of dialysis or death in either group. The secondary outcome occurred in 1 of 13 and 1 of 23 ketorolac patients with both a baseline serum creatinine and a measure within 7 and 30 days, respectively, but did not occur in patients who did not receive ketorolac (7 days: 7.7% vs 0.0%, p = 0.29; 30 days: 4.4% vs 0.0%, p = 0.22). CONCLUSION: The use of single doses of parenteral ketorolac for analgesia management was not associated with an increased incidence of adverse cardiovascular, gastrointestinal, or renal adverse outcomes in a select group of older adults.

Pediatric emergency medical services in privately insured patients: A 10-year national claims analysis.

OBJECTIVE: To characterize pediatric Emergency Medicine Service (EMS) transports to the Emergency Department (ED) using a national claims database. METHODS: We included children, 18 years and younger, transported by EMS to an ED, from 2007 to 2016 in the OptumLabs Data Warehouse. ICD-9 and ICD-10 diagnosis codes were used to categorize disease system involvement. Interventions performed were extracted using procedure codes. ED visit severity was measured by the Minnesota Algorithm. RESULTS: Over a 10-year period, 239,243 children were transported. Trauma was the most frequent diagnosis category for transport for children ≥5 years of age, 35.1% (age 6-13) and 32.7% (age 14-18). The most common diagnosis category in children <6 years of age was neurologic (29.3%), followed by respiratory (23.1%). Over 10 years, transports for mental disorders represented 15.3% in children age 14 to 18, and had the greatest absolute increase (rate difference + 10.4 per 10,000) across all diagnoses categories. Neurologic transports also significantly increased in children age 14 to 18 (rate difference + 6.9 per 10,000). Trauma rates decreased across all age groups and had its greatest reduction among children age 14 to 18 (rate difference - 6.8 per 10,000). Across all age groups, an intervention was performed in 15.6%. Most children (83.3%) were deemed to have ED care needed type of visit, and 15.8% of the transports resulted in a hospital admission. CONCLUSION: Trauma is the most frequent diagnosis for transport in children older than 5 years of age. Mental health and neurologic transports have markedly increased, while trauma transports have decreased. Most children arriving by ambulance were classified as requiring ED level of care. These changes might have significant implication for EMS personnel and policy makers.

Use of natural language processing to improve predictive models for imaging utilization in children presenting to the emergency department.

OBJECTIVE: To examine the association between the medical imaging utilization and information related to patients' socioeconomic, demographic and clinical factors during the patients' ED visits; and to develop predictive models using these associated factors including natural language elements to predict the medical imaging utilization at pediatric ED. METHODS: Pediatric patients' data from the 2012-2016 United States National Hospital Ambulatory Medical Care Survey was included to build the models to predict the use of imaging in children presenting to the ED. Multivariable logistic regression models were built with structured variables such as temperature, heart rate, age, and unstructured variables such as reason for visit, free text nursing notes and combined data available at triage. NLP techniques were used to extract information from the unstructured data. RESULTS: Of the 27,665 pediatric ED visits included in the study, 8394 (30.3%) received medical imaging in the ED, including 6922 (25.0%) who had an X-ray and 1367 (4.9%) who had a computed tomography (CT) scan. In the predictive model including only structured variables, the c-statistic was 0.71 (95% CI: 0.70-0.71) for any imaging use, 0.69 (95% CI: 0.68-0.70) for X-ray, and 0.77 (95% CI: 0.76-0.78) for CT. Models including only unstructured information had c-statistics of 0.81 (95% CI: 0.81-0.82) for any imaging use, 0.82 (95% CI: 0.82-0.83) for X-ray, and 0.85 (95% CI: 0.83-0.86) for CT scans. When both structured variables and free text variables were included, the c-statistics reached 0.82 (95% CI: 0.82-0.83) for any imaging use, 0.83 (95% CI: 0.83-0.84) for X-ray, and 0.87 (95% CI: 0.86-0.88) for CT. CONCLUSIONS: Both CT and X-rays are commonly used in the pediatric ED with one third of the visits receiving at least one. Patients' socioeconomic, demographic and clinical factors presented at ED triage period were associated with the medical imaging utilization. Predictive models combining structured and unstructured variables available at triage performed better than models using structured or unstructured variables alone, suggesting the potential for use of NLP in determining resource utilization.

Shift-Based Emotional Stress Reactions in Emergency Nurses After Traumatizing Events.

INTRODUCTION: Emergency nurses experience multiple traumatizing events during clinical work. Early identification of work-related tension could lead to a timely intervention supporting well-being. We sought to discover whether there is an immediately measurable effect on emotional stress, as determined by changes between pre- and postshift survey scores, associated with exposure to traumatizing events during a single emergency nursing shift. METHODS: The Emotional Stress Reaction Questionnaire (ESRQ) is a real-time self-assessment tool based on positively, negatively, or neutrally loaded emotions. Participants voluntarily completed pre- and postshift ESRQs over a 6-month period at a quaternary academic emergency department and recorded the number of associated traumatizing events. Associations between number of traumatizing events and ESRQ scores were evaluated using Spearman rank correlation coefficients. Changes in positive-negative balance scores were compared between shifts using a 2-sample t-test. RESULTS: There were 203 responses by 94 nurses. The mean preshift ESRQ score was 11.3 (SD = 5.2), mean postshift score 6.8 (SD = 7.4), and mean change -4.4 (SD = 8.2; t = -7.26; P < 0.001). The total number of traumatizing events was correlated with change in ESRQ scores (correlation coefficient of -0.31; P < 0.001). The mean change in positive-negative scores for shifts without traumatizing events was -1.4 (SD = 6.0) compared with -5.0 (SD = 8.5) for shifts with at least 1 event (t = 2.27; P = 0.03). DISCUSSION: Our results suggest that repeated exposure to traumatizing events during a single clinical shift was associated with a measurable effect on negative emotional stress in emergency nurses as determined by ESRQ positive-negative balance scores.

National trends in emergency department visits and hospitalizations for food-induced anaphylaxis in US children.

BACKGROUND: Food is the leading cause of anaphylaxis in children seen in emergency departments in the United States, yet data on emergency department visits and hospitalizations related to food-induced anaphylaxis are limited. The objective of our study was to examine national time trends of pediatric food-induced anaphylaxis-related emergency department visits and hospitalizations. METHODS: We conducted an observational study using a national administrative claims database from 2005 through 2014. Participants were younger than 18 years with an emergency department visit or hospitalization for food-induced anaphylaxis. Outcome measures of our study included time trends of pediatric food-induced anaphylaxis-related emergency department visits and hospitalizations, including observations (in an emergency department or a hospital unit), inpatient admissions, and intensive care unit admissions. RESULTS: During the study period, participants had 7310 food-induced anaphylaxis-related emergency department visits. Emergency department visits for food-induced anaphylaxis increased by 214% (P < .001); the highest rates were in infants and toddlers (age 0-2 years). Rates of emergency department visits significantly increased in all age-groups, with the highest increase in adolescents (age 13-17 years: 413%; P < .001). Peanuts accounted for the highest rates (5.85 per 100 000 in 2014) followed by tree nuts/seeds (4.62 per 100 000 in 2014). The greatest increase in rates of emergency department visits for food-induced anaphylaxis occurred with tree nuts/seeds (373.0% increase during the study period). CONCLUSIONS: The incidence of food-induced anaphylaxis has significantly increased over time in children of all ages. Food-induced anaphylaxis in children is an important national public health concern.

Risk factors for recurrent anaphylaxis-related emergency department visits in the United States.

BACKGROUND: Anaphylaxis is a potentially life-threatening allergic reaction with a strong risk of recurrence. OBJECTIVE: To assess risk factors associated with recurrent anaphylaxis-related emergency department (ED) visits within 1 year of an ED visit for anaphylaxis in a large observational cohort study. METHODS: We used an administrative claims database to identify patients seen from 2008 through 2012 in the ED for anaphylaxis based on an International Classification of Diseases, Ninth Revision, Clinical Modification diagnosis code algorithm. Patients with at least 2 years of continuous enrollment in a health plan were included. Multivariable logistic regression analysis was used to determine associations with recurrence of anaphylaxis within 1 year. RESULTS: During the 5-year study period, 7,367 patients (median age, 42 years; <18 years old, 23.3%) met the inclusion criteria. The most common anaphylaxis trigger was unspecified (56.2%), followed by food (25.3%), medication (14.6%), and venom (3.9%). Overall, 3.0% of patients had an additional anaphylaxis-related ED visit within 1 year (3.61 episodes per 100 patient-years). On multivariable analysis, risk factors associated with anaphylaxis recurrence were food trigger (odds ratio [OR], 2.31; 95% confidence interval [CI], 1.34-3.99), history of asthma (OR, 1.30; 95% CI, 1.13-1.51), and intensive care unit admission at the index anaphylaxis event (OR, 1.95; 95% CI, 1.41-2.69). CONCLUSION: In this contemporary cohort study, history of asthma, food trigger, and greater index anaphylaxis severity, as measured by intensive care unit admission, were associated with a higher likelihood of a recurrent anaphylaxis-related ED visit within 1 year.

Opioid Prescribing for Opioid-Naive Patients in Emergency Departments and Other Settings: Characteristics of Prescriptions and Association With Long-Term Use.

STUDY OBJECTIVE: We explore the emergency department (ED) contribution to prescription opioid use for opioid-naive patients by comparing the guideline concordance of ED prescriptions with those attributed to other settings and the risk of patients' continuing long-term opioid use. METHODS: We used analysis of administrative claims data (OptumLabs Data Warehouse 2009 to 2015) of opioid-naive privately insured and Medicare Advantage (aged and disabled) beneficiaries to compare characteristics of opioid prescriptions attributed to the ED with those attributed to other settings. Concordance with Centers for Disease Control and Prevention (CDC) guidelines and rate of progression to long-term opioid use are reported. RESULTS: We identified 5.2 million opioid prescription fills that met inclusion criteria. Opioid prescriptions from the ED were more likely to adhere to CDC guidelines for dose, days' supply, and formulation than those attributed to non-ED settings. Disabled Medicare beneficiaries were the most likely to progress to long-term use, with 13.4% of their fills resulting in long-term use compared with 6.2% of aged Medicare and 1.8% of commercial beneficiaries' fills. Compared with patients in non-ED settings, commercial beneficiaries receiving opioid prescriptions in the ED were 46% less likely, aged Medicare patients 56% less likely, and disabled Medicare patients 58% less likely to progress to long-term opioid use. CONCLUSION: Compared with non-ED settings, opioid prescriptions provided to opioid-naive patients in the ED were more likely to align with CDC recommendations. They were shorter, written for lower daily doses, and less likely to be for long-acting formulations. Prescriptions from the ED are associated with a lower risk of progression to long-term use.

Safety and Efficacy of Intravenous Lidocaine for Pain Management in the Emergency Department: A Systematic Review.

STUDY OBJECTIVE: We evaluate the safety and efficacy of intravenous lidocaine in adult patients with acute and chronic pain who are undergoing pain management in the emergency department (ED). METHODS: We searched Ovid CENTRAL, Ovid EMBASE, and Ovid MEDLINE databases for randomized controlled trials and observational studies from inception to January 2017. Efficacy outcomes included reduction in pain scores from baseline to postintervention and need for rescue analgesia. Safety outcomes included incidence of serious (eg, cardiac arrest) and nonserious (eg, dizziness) adverse events. We used the Cochrane Collaboration tool and a modified Newcastle-Ottawa Scale to evaluate the risk of bias across studies. The Grading of Recommendations Assessment, Development and Evaluation approach was used to evaluate the confidence in the evidence available. RESULTS: From a total of 1,947 titles screened, 61 articles were selected for full-text review. Eight studies met the inclusion criteria and underwent qualitative analysis, including 536 patients. The significant clinical heterogeneity and low quality of studies precluded a meta-analysis. Among the 6 randomized controlled trials included, intravenous lidocaine had efficacy equivalent to that of active controls in 2 studies, and was better than active controls in 2 other studies. In particular, intravenous lidocaine had pain score reduction comparable to or higher than that of intravenous morphine for pain associated with renal colic and critical limb ischemia. Lidocaine did not appear to be effective for migraine headache in 2 studies. There were 20 adverse events reported by 6 studies among 225 patients who received intravenous lidocaine in the ED, 19 nonserious and 1 serious (rate 8.9%, 95% confidence interval 5.5% to 13.4% for any adverse event; and 0.4%, 95% confidence interval 0% to 2.5% for serious adverse events). The confidence in the evidence available for the outcomes evaluated was deemed to be very low because of methodological limitations, including risk of bias, inconsistency, and imprecision. CONCLUSION: There is limited current evidence to define the role of intravenous lidocaine as an analgesic for patients with acute renal colic and critical limb ischemia pain in the ED. Its efficacy for other indications has not been adequately tested. The safety of lidocaine for ED pain management has not been adequately examined.

Access to primary care and computed tomography use in the emergency department.

BACKGROUND: The decision to obtain a computed tomography CT scan in the emergency department (ED) is complex, including a consideration of the risk posed by the test itself weighed against the importance of obtaining the result. In patients with limited access to primary care follow up the consequences of not making a diagnosis may be greater than for patients with ready access to primary care, impacting diagnostic reasoning. We set out to determine if there is an association between CT utilization in the ED and patient access to primary care. METHODS: We performed a cross-sectional study of all ED visits in which a CT scan was obtained between 2003 and 2012 at an academic, tertiary-care center. Data were abstracted from the electronic medical record and administrative databases and included type of CT obtained, demographics, comorbidities, and access to a local primary care provider (PCP). CT utilization rates were determined per 1000 patients. RESULTS: A total of 595,895 ED visits, including 98,001 visits in which a CT was obtained (16.4%) were included. Patients with an assigned PCP accounted for 55% of all visits. Overall, CT use per 1000 ED visits increased from 142.0 in 2003 to 169.2 in 2012 (p < 0.001), while the number of annual ED visits remained stable. CT use per 1000 ED visits increased from 169.4 to 205.8 over the 10-year period for patients without a PCP and from 118.9 to 142.0 for patients with a PCP. Patients without a PCP were more likely to have a CT performed compared to those with a PCP (OR 1.57, 95%CI 1.54 to 1.58; p < 0.001). After adjusting for age, gender, year of visit and number of comorbidities, patients without a PCP were more likely to have a CT performed (OR 1.20, 95% CI 1.18 to 1.21, p < 0.001). CONCLUSIONS: The overall rate of CT utilization in the ED increased over the past 10 years. CT utilization was significantly higher among patients without a PCP. Increased availability of primary care, particularly for follow-up from the ED, could reduce CT utilization and therefore decrease costs, ED lengths of stay, and radiation exposure.

Predictors of epinephrine dispensing and allergy follow-up after emergency department visit for anaphylaxis.

BACKGROUND: National guidelines recommend that patients with anaphylaxis be prescribed an epinephrine auto-injector (EAI) and referred to an allergy/immunology (A/I) specialist. OBJECTIVE: To evaluate guideline concordance and identify predictors of EAI dispensing and A/I follow-up in patients with anaphylaxis treated in the emergency department (ED). METHODS: We identified patients seen in the ED for anaphylaxis from 2010 through 2014 from an administrative claims database using an expanded International Classification of Diseases, Ninth Revision, Clinical Modification diagnosis code algorithm. RESULTS: Of 7,790 patients identified, 46.5% had an EAI dispensed and 28.8% had A/I follow-up within 1 year after discharge. On multivariable analysis, those 65 years or older (odds ratio [OR] 0.35, 95% confidence interval [CI] 0.30-0.41) and with a medication trigger (OR 0.24, 95% CI 0.21-0.28) had a lower likelihood of EAI dispensing. Those younger than 5 years (OR 2.67, 95% CI 2.15-3.32) and with food (OR 1.40, 95% CI 1.24-1.59) or venom (OR 4.48, 95% CI 3.51-5.72) triggers had a higher likelihood of EAI dispensing. Similarly, for A/I follow-up, the likelihood was lower for age 65 years or older (OR 0.46, 95% CI 0.39-0.54) and medication trigger (OR 0.66, 95% CI 0.56-0.78) and higher for age younger than 5 years (OR 3.15, 95% CI 2.63-3.77) and food trigger (OR 1.39, 95% CI 1.22-1.58). CONCLUSION: Overall, 46.5% of patients with anaphylaxis in the ED had EAI dispensing and 28.8% had A/I follow-up. Patient age and triggers were associated with likelihood of EAI dispensing and A/I follow-up. Post-ED visit anaphylaxis management can be improved, with the potential to decrease future morbidity and mortality risk.

Risk factors for severe anaphylaxis in the United States.

BACKGROUND: Anaphylaxis is an acute systemic allergic reaction and may be life-threatening. OBJECTIVE: To assess risk factors associated with severe and near-fatal anaphylaxis in a large observational cohort study. METHODS: We analyzed administrative claims data from Medicare Advantage and privately insured enrollees in the United States from 2005 to 2014. Severe anaphylaxis was defined as anaphylaxis resulting in hospital or intensive care unit (ICU) admission, requiring endotracheal intubation, or meeting criteria for near-fatal anaphylaxis. RESULTS: Of 38,695 patients seen in the emergency department for anaphylaxis during the study period, 4,431 (11.5%) required hospitalization, 2,057 (5.3%) were admitted to the ICU, 567 (1.5%) required endotracheal intubation, and 174 (0.45%) were classified as having a near-fatal episode. Multivariable analysis revealed that medication-related anaphylaxis (odds ratio [OR], 1.50; 95% confidence interval [CI], 1.38-1.63; P < .001), age of 65 years or older (OR, 3.15; 95% CI, 2.88-3.44; P < .001), and the presence of cardiac disease (OR, 1.56; 95% CI, 1.50-1.63; P < .001) or lung disease (OR, 1.23; 95% CI, 1.16-1.30; P < .001) were associated with increased odds of severe anaphylaxis requiring any hospital admission, ICU admission, or intubation or being a near-fatal reaction. CONCLUSION: In this large contemporary cohort study, 11.6% of patients had severe anaphylaxis. Age of 65 years or older, medication as a trigger, and presence of comorbid conditions (specifically cardiac and lung disease) were associated with significantly higher odds of severe anaphylaxis. Additional studies examining risk factors for severe anaphylaxis are needed to define risk assessment strategies and establish a framework for management.

Effectiveness of Apneic Oxygenation During Intubation: A Systematic Review and Meta-Analysis.

STUDY OBJECTIVE: We conduct a systematic review and meta-analysis to evaluate the effectiveness of apneic oxygenation during emergency intubation. METHODS: We searched Ovid MEDLINE, Ovid EMBASE, Ovid CENTRAL, and Scopus databases for randomized controlled trials and observational studies from 2006 until July 2016, without language restrictions. Gray literature, clinicaltrials.gov, and reference lists of articles were hand searched. We conducted a meta-analysis with random-effects models to evaluate first-pass success rates, incidence of hypoxemia, and lowest peri-intubation SpO2 between apneic oxygenation and standard oxygenation cases. RESULTS: A total of 1,386 studies were screened and 77 selected for full-text review. A total of 14 studies were included for qualitative analysis, and 8 studies (1,837 patients) underwent quantitative analysis. In the meta-analysis of 8 studies (1,837 patients), apneic oxygenation was associated with decreased hypoxemia (odds ratio [OR] 0.66; 95% confidence interval [CI] 0.52 to 0.84), but was not associated with decreased severe hypoxemia (6 studies; 1,043 patients; OR 0.86; 95% CI 0.47 to 1.57) or life-threatening hypoxemia (5 studies; 1,003 patients; OR 0.90; 95% CI 0.52 to 1.55). Apneic oxygenation was associated with increased first-pass success rate (6 studies; 1,658 patients; OR 1.59; 95% CI 1.04 to 2.44) and increased lowest peri-intubation SpO2 (6 studies; 1,043 patients; weighted mean difference 2.2%; 95% CI 0.8% to 3.6%). CONCLUSION: In this meta-analysis, apneic oxygenation was associated with increased peri-intubation oxygen saturation, decreased rates of hypoxemia, and increased first-pass intubation success.

Does gender bias in cardiac stress testing still exist? A videographic analysis nested in a randomized controlled trial.

OBJECTIVES: Despite a high prevalence of coronary heart disease in both genders, studies show a gender disparity in evaluation whereby women are less likely than men to undergo timely or comprehensive cardiac investigation. Using videographic analysis, we sought to quantify gender differences in provider recommendations and patient evaluations. METHODS: We analyzed video recordings from our Chest Pain Choice trial, a single center patient-level randomized trial in which emergency department patients with chest pain being considered for cardiac stress testing were randomized to shared decision-making or usual care. Patient-provider interactions were video recorded. We compared characteristics and outcomes by gender. RESULTS: Of the 204 patients enrolled (101 decision aid; 103 usual care), 120 (58.8%) were female. Of the 75 providers evaluated, 20 (26.7%) were female. The mean (SD) pretest probability of acute coronary syndrome was lower in women [3.7% (2.2) vs 6.7% (4.4), P=.0002]. There was no gender effect on duration of discussion, clinician recommendations, OPTION scores, patient perceptions, or eventual patient dispositions. When the clinician and patient gender matched, OPTION scores were lower (interaction P=.002), and patients were less likely to find the information to be very helpful (interaction P=.10). CONCLUSIONS: Despite a lower pretest probability of acute coronary syndrome in women, we did not observe any significant gender disparity in how patients were managed and evaluated. When the patients' and providers' gender matched, the provider involved them less in the decision making process, and the information provided was less helpful than when the genders did not match.

Factors Associated with the Need for Intensive Care Unit Admission Following Supratentorial Intracerebral Hemorrhage: The Triage ICH Model.

BACKGROUND: Providing the correct level of care for patients with intracerebral hemorrhage (ICH) is crucial, but the level of care needed at initial presentation may not be clear. This study evaluated factors associated with admission to intensive care unit (ICU) level of care. METHODS: This is an observational study of all adult patients admitted to our institution with non-traumatic supratentorial ICH presenting within 72 h of symptom onset between 2009-2012 (derivation cohort) and 2005-2008 (validation cohort). Factors associated with neuroscience ICU admission were identified via logistic regression analysis, from which a triage model was derived, refined, and retrospectively validated. RESULTS: For the derivation cohort, 229 patients were included, of whom 70 patients (31 %) required ICU care. Predictors of neuroscience ICU admission were: younger age [odds ratio (OR) 0.94, 95 % CI 0.91-0.97; p = 0.0004], lower Full Outline of UnResponsiveness (FOUR) score (0.39, 0.28-0.54; p < 0.0001) or Glasgow Coma Scale (GCS) score (0.55, 0.45-0.67; p < 0.0001), and larger ICH volume (1.04, 1.03-1.06; p < 0.0001). The model was further refined with clinician input and the addition of intraventricular hemorrhage (IVH). GCS was chosen for the model rather than the FOUR score as it is more widely used. The proposed triage ICH model utilizes three variables: ICH volume ≥30 cc, GCS score <13, and IVH. The triage ICH model predicted the need for ICU admission with a sensitivity of 94.3 % in the derivation cohort [area under the curve (AUC) = 0.88; p < 0.001] and 97.8 % (AUC = 0.88) in the validation cohort. CONCLUSIONS: Presented are the derivation, refinement, and validation of the triage ICH model. This model requires prospective validation, but may be a useful tool to aid clinicians in determining the appropriate level of care at the time of initial presentation for a patient with a supratentorial ICH.

Physician, Interrupted: Workflow Interruptions and Patient Care in the Emergency Department.

BACKGROUND: It is unclear how workflow interruptions impact emergency physicians at the point of care. OBJECTIVES: Our study aimed to evaluate interruption characteristics experienced by academic emergency physicians. METHODS: This prospective, observational study collected interruptions during attending physician shifts. An interruption is defined as any break in performance of a human activity that briefly requires attention. One observer captured interruptions using a validated tablet PC-based tool that time stamped and categorized the data. Data collected included: 1) type, 2) priority of interruption to original task, and 3) physical location of the interruption. A Kruskal-Wallis H test compared interruption priority and duration. A chi-squared analysis examined the priority of interruptions in and outside of the patient rooms. RESULTS: A total of 2355 interruptions were identified across 210 clinical hours and 28 shifts (means = 84.1 interruptions per shift, standard deviation = 14.5; means = 11.21 interruptions per hour, standard deviation = 4.45). Physicians experienced face-to-face physician interruptions most frequently (26.0%), followed by face-to-face nurse communication (21.7%), and environment (20.8%). There was a statistically significant difference in interruption duration based on the interruption priority, χ2(2) = 643.98, p < 0.001, where durations increased as priority increased. Whereas medium/normal interruptions accounted for 53.6% of the total interruptions, 53% of the interruptions that occurred in the patient room (n = 162/308) were considered low priority (χ2 [2, n = 2355] = 78.43, p < 0.001). CONCLUSIONS: Our study examined interruptions over entire provider shifts and identified patient rooms as high risk for low-priority interruptions. Targeting provider-centered interventions to patient rooms may aid in mitigating the impacts of interruptions on patient safety and enhancing clinical care.

Sensitivity of Early Brain Computed Tomography to Exclude Aneurysmal Subarachnoid Hemorrhage: A Systematic Review and Meta-Analysis.

BACKGROUND AND PURPOSE: Emerging evidence demonstrating the high sensitivity of early brain computed tomography (CT) brings into question the necessity of always performing lumbar puncture after a negative CT in the diagnosis of spontaneous subarachnoid hemorrhage (SAH). Our objective was to determine the sensitivity of brain CT using modern scanners (16-slice technology or greater) when performed within 6 hours of headache onset to exclude SAH in neurologically intact patients. METHODS: After conducting a comprehensive literature search using Ovid MEDLINE, Ovid EMBASE, Web of Science, and Scopus, we conducted a meta-analysis. We included original research studies of adults presenting with a history concerning for spontaneous SAH and who had noncontrast brain CT scan using a modern generation multidetector CT scanner within 6 hours of symptom onset. Our study adheres to the preferred reporting items for systematic reviews and meta-analyses (PRISMA). RESULTS: A total of 882 titles were reviewed and 5 articles met inclusion criteria, including an estimated 8907 patients. Thirteen had a missed SAH (incidence 1.46 per 1000) on brain CTs within 6 hours. Overall sensitivity of the CT was 0.987 (95% confidence intervals, 0.971-0.994) and specificity was 0.999 (95% confidence intervals, 0.993-1.0). The pooled likelihood ratio of a negative CT was 0.010 (95% confidence intervals, 0.003-0.034). CONCLUSIONS: In patients presenting with thunderclap headache and normal neurological examination, normal brain CT within 6 hours of headache is extremely sensitive in ruling out aneurysmal SAH.

Rate of recurrent anaphylaxis and associated risk factors among Olmsted County, Minnesota, residents: A population-based study.

BACKGROUND: The rate and risk factors for recurrence of anaphylaxis are not well known. OBJECTIVE: To measure the rate and risk factors for recurrent anaphylaxis in a population-based cohort in Olmsted County, Minnesota. METHODS: We conducted a population-based cohort study using the Rochester Epidemiology Project, a comprehensive medical records linkage system, to obtain records of patients who presented to medical centers within the Olmsted County area with anaphylaxis from January 1, 2001, through December 31, 2010. We evaluated the rate and associations of risk factors with anaphylaxis recurrence. RESULTS: Among the 611 patients with anaphylaxis, 50 (8%) experienced a total of 60 recurrences within the 10-year period, resulting in a recurrence rate of 2.6 per 100 person-years. A history of atopic dermatitis (hazard ratio [HR], 5.6; 95% confidence interval [CI], 2.0-16.1; P = .001), presenting symptoms of cough (HR, 4.7; 95% CI, 2.1-10.7; P < .001) oral pruritus (HR, 9.9; 95% CI, 4.3-23.2; P < .001), and receiving corticosteroids (HR, 5.2; 95% CI, 2.3-11.7; P < .001) were associated with an increased risk of recurrence. The cardiovascular symptom of chest pain (HR, 0.24; 95% CI, 0.07-0.79; P = .02) was associated with a decreased risk of recurrence. CONCLUSION: In this epidemiologic study, the rate of recurrence was 8% during the 10-year study period (recurrence rate of 2.6 per 100 person-years). Those with atopic dermatitis and mucocutaneous or respiratory symptoms were more likely to have a recurrent anaphylactic event. Our findings underscore the importance of early patient access to self-injectable epinephrine and referral to an allergist/immunologist for additional testing and education.

Effect of scribes on patient throughput, revenue, and patient and provider satisfaction: a systematic review and meta-analysis.

BACKGROUND: Scribes offer a potential solution to the clerical burden and time constraints felt by health care providers. OBJECTIVES: This is a systematic review and meta-analysis to evaluate scribe effect on patient throughput, revenue, and patient and provider satisfaction. METHODS: Six electronic databases were systematically searched from inception until May 2015. We included studies where clinicians used a scribe. We collected throughput metrics, billing data, and patient/provider satisfaction data. Meta-analyses were conducted using a random effects model and mean differences (MDs) with 95% confidence intervals (CIs) with adherence to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis statement. RESULTS: From a total of 210 titles, 17 studies were eligible and included. Qualitative analysis suggests improvement in provider/patient satisfaction. Meta-analysis on throughput data was derived from 3 to 5 studies depending on the metric; meta-analysis revealed no impact of scribes on length of stay (346 minutes for scribes, 344 minutes for nonscribed; MD -1.6 minutes, 95% CI -22.3 to 19.2 minutes) or provider-to-disposition time (235 minutes for scribes, 216 for nonscribed; MD -18.8 minutes, 95% CI -22.3 to 19.2) with an increase in patients seen per hour (0.17 more patient per hour; 95% CI 0.02-32). Two studies reported relative value units, which increased 0.21 (95% CI 0-0.42) per patient with scribe use. CONCLUSION: We found no difference in length of stay or time to disposition with a small increase in the number of patients per hour seen when using scribes. Potential benefits include revenue and patient/provider satisfaction.

External validation of the Ottawa subarachnoid hemorrhage clinical decision rule in patients with acute headache.

We aim to externally validate the Ottawa subarachnoid hemorrhage (OSAH) clinical decision rule. This rule identifies patients with acute nontraumatic headache who require further investigation. We conducted a medical record review of all patients presenting to the emergency department (ED) with headache from January 2011 to November 2013. Per the OSAH rule, patients with any of the following predictors require further investigation: age 40 years or older, neck pain, stiffness or limited flexion, loss of consciousness, onset during exertion, or thunderclap. The rule was applied following the OSAH rule criteria. Patients were followed up for repeat visits within 7 days of initial presentation. Data were electronically harvested from the electronic medical record and manually abstracted from individual patient charts using a standardized data abstraction form. Calibration between trained reviewers was performed periodically. A total of 5034 ED visits with acute headache were reviewed for eligibility. There were 1521 visits that met exclusion criteria, and 3059 had headache of gradual onset or time to maximal intensity greater than or equal to 1 hour. The rule was applied to 454 patients (9.0%). There were 9 cases of subarachnoid hemorrhage (SAH), yielding an incidence of 2.0% (95% confidence interval [CI], 1.0%-3.9%) in the eligible cohort. The sensitivity for SAH was 100% (95% CI, 62.9%-100%); specificity, 7.6% (95% CI, 5.4%-10.6%); positive predictive value, 2.1% (95% CI 1.0%-4.2%); and negative predictive value, 100% (95% CI, 87.4%-100%). The OSAH rule was 100% sensitive for SAH in the eligible cohort. However, its low specificity and applicability to only a minority of ED patients with headache (9%) reduce its potential impact on practice.