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STUDY OBJECTIVE: The SafeSDH Tool was derived to identify patients with isolated (no other type of intracranial hemorrhage) subdural hematoma who are at very low risk of neurologic deterioration, neurosurgical intervention, or death. Patients are low risk by the tool if they have none of the following: use of anticoagulant or nonaspirin antiplatelet agent, Glasgow Coma Score (GCS) <14, more than 1 discrete hematoma, hematoma thickness >5 mm, or midline shift. We attempted to externally validate the SafeSDH Tool. METHODS: We performed a retrospective chart review of patients aged ≥16 with a GCS ≥13 and isolated subdural hematoma who presented to 1 of 6 academic and community hospitals from 2005 to 2018. The primary outcome, a composite of neurologic deterioration (seizure, altered mental status, or symptoms requiring repeat imaging), neurosurgical intervention, discharge on hospice, and death, was abstracted from discharge summaries. Hematoma thickness, number of hematomas, and midline shift were abstracted from head imaging reports. Anticoagulant use, antiplatelet use, and GCS were gathered from the admission record. RESULTS: The validation data set included 753 patients with isolated subdural hematoma. Mortality during the index admission was 2.1%; 26% of patients underwent neurosurgical intervention. For the composite outcome, sensitivity was 99% (95% confidence interval [CI] 97 to 100), and specificity was 31% (95% CI 27 to 35). The tool identified 162 (21.5%) patients as low risk. Negative likelihood ratio was 0.03 (95% CI 0.01 to 0.11). CONCLUSION: The SafeSDH Tool identified patients with isolated subdural hematoma who are at low risk for poor outcomes with high sensitivity. With prospective validation, these low-risk patients could be safe for management in less intensive settings.
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INTRODUCTION: While the relationships between cardiovascular disease (CVD), stress, and financial strain are well studied, the association between recessionary periods and macroeconomic conditions on incidence of disease-specific CVD emergency department (ED) visits is not well established. OBJECTIVES: This retrospective observational study aimed to assess the relationship between macroeconomic trends and CVD ED visits. METHODS: This study uses data from the National Hospital Ambulatory Care Survey (NHAMCS), Federal Reserve Economic Database (FRED), National Bureau of Economic Research (NBER), and CVD groupings from National Vital Statistics (NVS) and Center for Medicare and Medicaid Services (CMS) from 1999 to 2020 to analyze ED visits in relation to macroeconomic indicators and NBER defined recessions and expansions. RESULTS: CVD ED visits grew by 79.7% from 1999 to 2020, significantly more than total ED visits (27.8%, p < 0.001). A national estimate of 213.2 million CVD ED visits, with 22.9 million visits in economic recessions were analyzed. A secondary group including a 6-month period before and after each recession (defined as a "broadened recession") was also analyzed to account for potential leading and lagging effects of the recession, with a total of 50.0 million visits. A significantly higher proportion of CVD ED visits related to heart failure (HF) and other acute ischemic heart diseases (IHD) was observed during recessionary time periods both directly and with a 6-month lead and lag (p < 0.05). The proportion of aortic aneurysm and dissection (AAA) and atherosclerosis (ASVD) ED visits was significantly higher (p = 0.024) in the recession period with a 6-month lead and lag. When controlled for common demographic factors, economic approximations of recession such as the CPI, federal funds rate, and real disposable income were significantly associated with increased CVD ED visits. CONCLUSION: Macroeconomic trends have a significant relationship with the overall mix of CVD ED visits and represent an understudied social determinant of health.
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Doenças Cardiovasculares , Recessão Econômica , Idoso , Humanos , Estados Unidos/epidemiologia , Emergências , Determinantes Sociais da Saúde , Medicare , Doenças Cardiovasculares/epidemiologia , Serviço Hospitalar de EmergênciaRESUMO
SARS-CoV-2 is spread through exhaled breath of infected individuals. A fundamental question in understanding transmission of SARS-CoV-2 is how much virus an individual is exhaling into the environment while they breathe, over the course of their infection. Research on viral load dynamics during COVID-19 infection has focused on internal swab specimens, which provide a measure of viral loads inside the respiratory tract, but not on breath. Therefore, the dynamics of viral shedding on exhaled breath over the course of infection are poorly understood. Here, we collected exhaled breath specimens from COVID-19 patients and used RTq-PCR to show that numbers of exhaled SARS-CoV-2 RNA copies during COVID-19 infection do not decrease significantly until day 8 from symptom-onset. COVID-19-positive participants exhaled an average of 80 SARS-CoV-2 viral RNA copies per minute during the first 8 days of infection, with significant variability both between and within individuals, including spikes over 800 copies a minute in some patients. After day 8, there was a steep drop to levels nearing the limit of detection, persisting for up to 20 days. We further found that levels of exhaled viral RNA increased with self-rated symptom-severity, though individual variation was high. Levels of exhaled viral RNA did not differ across age, sex, time of day, vaccination status or viral variant. Our data provide a fine-grained, direct measure of the number of SARS-CoV-2 viral copies exhaled per minute during natural breathing-including 312 breath specimens collected multiple times daily over the course of infection-in order to fill an important gap in our understanding of the time course of exhaled viral loads in COVID-19.
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OBJECTIVES: The COVID-19 pandemic has required significant modifications of hospital care. The objective of this study was to examine the operational approaches taken by US hospitals over time in response to the COVID-19 pandemic. DESIGN, SETTING AND PARTICIPANTS: This was a prospective observational study of 17 geographically diverse US hospitals from February 2020 to February 2021. OUTCOMES AND ANALYSIS: We identified 42 potential pandemic-related strategies and obtained week-to-week data about their use. We calculated descriptive statistics for use of each strategy and plotted percent uptake and weeks used. We assessed the relationship between strategy use and hospital type, geographic region and phase of the pandemic using generalised estimating equations (GEEs), adjusting for weekly county case counts. RESULTS: We found heterogeneity in strategy uptake over time, some of which was associated with geographic region and phase of pandemic. We identified a body of strategies that were both commonly used and sustained over time, for example, limiting staff in COVID-19 rooms and increasing telehealth capacity, as well as those that were rarely used and/or not sustained, for example, increasing hospital bed capacity. CONCLUSIONS: Hospital strategies during the COVID-19 pandemic varied in resource intensity, uptake and duration of use. Such information may be valuable to health systems during the ongoing pandemic and future ones.
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COVID-19 , Telemedicina , Humanos , COVID-19/epidemiologia , Pandemias , SARS-CoV-2 , HospitaisRESUMO
STUDY OBJECTIVE: Low back pain is a common reason for visiting the emergency department (ED), yet little is known about patient motivations for seeking emergency care. The purpose of this study was to explore patient perspectives on visiting the ED for low back pain to inform a more patient-centered approach to emergency care. METHODS: We conducted focus group discussions and individual interviews among patients visiting an urban academic ED for acute low back pain. We recruited participants from an ongoing prospective study of 101 patients receiving either ED-initiated physical therapy or usual care. We conducted discussions, and interviews using an a priori developed discussion guide. We audio recorded, transcribed, and iteratively content analyzed the data using a consensual qualitative approach until thematic saturation was reached. RESULTS: We conducted 4 focus group discussions among 18 participants (median age 46.5 years, 66.7% women, 61.1% Black) and individual interviews with 27 participants (median age 45 years, 55.6% women, 44.4% White). No new themes emerged during the fourth and final focus group. We identified 5 summary themes: (1) the decision to seek emergency care for low back pain is motivated by severe pain, resulting disability, and fears about a catastrophic diagnosis, (2) participants sought various goals from their ED visit but emphasized the primacy of pain control, (3) participants were reluctant to use pain medications but also acknowledged their benefit, (4) participants perceived a number of benefits from direct access to an ED physical therapist in the ED, and (5) participation in physical therapy ultimately facilitated recovery, but the pain was a barrier to performing exercises. CONCLUSIONS: These patient perspectives and resulting themes may be used to inform a more patient-centered emergency care experience and contextualize quantitative research findings on ED care for low back pain.
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Dor Aguda , Dor Lombar , Humanos , Feminino , Pessoa de Meia-Idade , Masculino , Dor Lombar/terapia , Estudos Prospectivos , Serviço Hospitalar de Emergência , Grupos Focais , Dor Aguda/terapia , Modalidades de Fisioterapia , Pesquisa QualitativaRESUMO
PURPOSE: There are no standardized approaches for communicating with patients discharged from the emergency department with diagnostic uncertainty. This trial tested efficacy of the Uncertainty Communication Education Module, a simulation-based mastery learning curriculum designed to establish competency in communicating diagnostic uncertainty. METHOD: Resident physicians at 2 sites participated in a 2-arm waitlist randomized controlled trial from September 2019 to June 2020. After baseline (T1) assessment of all participants via a standardized patient encounter using the Uncertainty Communication Checklist (UCC), immediate access physicians received training in the Uncertainty Communication Education Module, which included immediate feedback, online educational modules, a smartphone-based application, and telehealth deliberate practice with standardized patients. All physicians were retested 16-19 weeks later (T2) via in-person standardized patient encounters; delayed access physicians then received the intervention. A final test of all physicians occurred 11-15 weeks after T2 (T3). The primary outcome measured the percentage of physicians in the immediate versus delayed access groups meeting or exceeding the UCC minimum passing standard at T2. RESULTS: Overall, 109 physicians were randomized, with mean age 29 years (range 25-46). The majority were male (n = 69, 63%), non-Hispanic/Latino (n = 99, 91%), and White (n = 78, 72%). At T2, when only immediate access participants had received the curriculum, immediate access physicians demonstrated increased mastery (n = 29, 52.7%) compared with delayed access physicians (n = 2, 3.7%, P < .001; estimated adjusted odds ratio of mastery for the immediate access participants, 31.1 [95% CI, 6.8-143.1]). There were no significant differences when adjusting for training site or stage of training. CONCLUSIONS: The Uncertainty Communication Education Module significantly increased mastery in communicating diagnostic uncertainty at the first postintervention test among emergency physicians in standardized patient encounters. Further work should assess the impact of clinical implementation of these communication skills.
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Internato e Residência , Médicos , Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Alta do Paciente , Incerteza , Aprendizagem , Currículo , Serviço Hospitalar de Emergência , Competência ClínicaRESUMO
The purpose of this work is to understand Emergency Department (ED) clinicians' experiences in communicating uncertainty about first-trimester bleeding (FTB) and their need for training on this topic. This cross-sectional study surveyed a national sample of attending physicians and advanced practice providers (APPs). The survey included quantitative and qualitative questions about communicating with patients presenting with FTB. These questions assessed clinicians' frequency encountering challenges, comfort, training, prior experience, and interest in training on the topic. Of 402 respondents, 54% reported that they encountered challenges at least sometimes when discussing FTB with patients where the pregnancy outcome is uncertain. While the majority (84%) were at least somewhat prepared for these conversations from their training, which commonly addressed the diagnostic approach to this scenario, 39% strongly or moderately agreed that they could benefit from training on the topic. Because the majority of ED clinicians identified at least sometimes encountering challenges communicating with pregnant patients about FTB, our study indicates a need exists for more training in this skill.
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Objective: Urgent care centers (UCs) commonly evaluate patients with respiratory infections, and patients increasingly prefer UCs to emergency departments (EDs) because of their customer-centric approach. The aim of this study is to describe antibiotic and opioid prescribing among UC and ED visits with respiratory diagnoses. Methods: This is a cross-sectional study of visits to 7 EDs and 6 UCs in the greater Chicago area. We included visits from July 1, 2017, to June 30, 2019, with a primary diagnosis of upper or lower respiratory infection. We describe the proportion of visits resulting in an antibiotic or antitussive prescription as well as the most frequently prescribed medications in these categories. We also describe the demographic and clinical characteristics of visits. Results: Of 9134 ED visits, 32.9% were prescribed an antibiotic and 14.4% an antitussive (6.6% opioid). Of 41,380 UC visits for respiratory diagnoses, 57.9% were prescribed an antibiotic and 25.0% an antitussive (9.3% opioid). The most frequently prescribed antibiotics among ED and UC visits were penicillins (36.6% and 44.5%, respectively) and macrolides (44.1% and 35.3%, respectively). The most commonly prescribed opioid was codeine (55.6% and 91.0%, respectively). Median waiting room time was 16 and 5 minutes for ED and UC visits, respectively; median length of stay was 178 and 41 minutes, respectively. Conclusions: Antibiotics and antitussives, including opioids, are frequently prescribed for ED and UC visits with non-bacterial respiratory diagnoses. These findings suggest greater attention to the appropriateness of antibiotic prescribing in both settings and the incorporation of specific guidance on codeine products in opioid-prescribing guidelines.
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PURPOSE: To analyze the impact of the coronavirus disease (COVID) pandemic on emergency department (ED) computed tomography (CT) utilization. METHODS: A retrospective observational study was conducted assessing seven hospitals' ED imaging volumes between Jan. 6, 2019, and Feb. 27, 2021. Weekly CT utilization is reported as CTs ordered per 100 ED visits. Utilization was ascertained in aggregate and by body area. Interrupted time series analysis was performed to assess significance of utilization change. Prespecified sensitivity analysis was performed for influenza-like or COVID-like illness (ILI/CLI). RESULTS: Weekly ED CT utilization increased from 35.9 CTs per 100 visits (95% confidence interval [95% CI] 35.8-36.1) to 41.8 per 100 visits (95% CI 41.7-42.0) in pre- and post-pandemic periods. Weekly ED CT chest utilization increased immediately following the pandemic declaration (+ 0.52 chest CTs per 100 ED visits, 95% CI 0.01-1.03, p < 0.05) and compared to pre-pandemic period (+ 0.02 per 100 ED visits, 95% CI 0.02-0.05, p < 0.02). For both CT abdomen/pelvis and CT head, there was neither an immediate effect (+ 0.34 CT-AP per 100 ED visits, 95% CI - 0.74 to 1.44, p = 0.89; - 0.42 CT-H per 100 ED visits, 95% CI - 1.53 to 0.70, p = 0.46) nor a change in weekly CT utilization (+ 0.03 CT-AP per 100 ED visits, 95% CI - 0.01 to 0.05, p = 0.09; + 0.03 CT-H per 100 ED visits, 95% CI - 0.01 to 0.06, p = 0.10). CONCLUSION: These data may help formulate future strategies for resource utilization and imaging operations as we envision a future with COVID and other federal mandates affecting imaging utilization and appropriateness.
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COVID-19 , Pandemias , Serviço Hospitalar de Emergência , Cabeça , Humanos , Estudos Retrospectivos , Tomografia Computadorizada por Raios XRESUMO
OBJECTIVE: Although 72-hour return visits are a frequently reported metric for pediatric patients discharged from the emergency department (ED), the basis for this metric is not established. Our objective was to statistically derive a cutoff time point for the characterization of pediatric return visits. METHODS: We performed a retrospective cohort study using data of patients discharged from any of 44 pediatric EDs. We selected the first encounter per patient from January 1 to December 31, 2019, as the index encounter and included the first return visit within 30 days. We constructed a cumulative hazard curve to characterize the timing of return visits and constructed a multivariable adaptive regression spline model to identify a hinge point in return visit presentations. We identified the association between admission for early return visits and admission for late return visits using generalized linear mixed modeling. RESULTS: Of 1,986,778 index ED discharges, 193,605 (9.7%) ED return visits were included. A double-exponential decay model demonstrated superior fit compared with a single exponential model ( P < 0.0001). Multivariable adaptive regression spline modeling identified a hinge at 7 days. When comparing proportions of return visits leading to hospitalization between early (23.8%) and late (15.1%) return visits, early visits (≤7 days) had higher adjusted odds of hospital admission (adjusted odds ratio, 1.73; 95% confidence interval, 1.69-1.77) relative to late return visits (>7 days). Findings were similar in sensitivity analyses within age subgroups, Census region, and in which the diagnosis (using the Diagnosis and Grouping System) was the same between the index and return visit. Among return visits that occurred within 7 days of the index visit, 46.3% had the same diagnosis grouping in both visits. CONCLUSIONS: An empirically derived 7-day cutoff may be more appropriate for characterization of pediatric return visits to the ED. Encounters after this period had lower adjusted odds of admission.
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Serviço Hospitalar de Emergência , Readmissão do Paciente , Criança , Hospitalização , Humanos , Alta do Paciente , Estudos RetrospectivosRESUMO
INTRODUCTION: Low back pain is a common problem and a substantial source of morbidity and disability worldwide. Patients frequently visit the emergency department (ED) for low back pain, but many experience persistent symptoms at 3 months despite frequent receipt of opioids. Although physical therapy interventions have been demonstrated to improve patient functioning in the outpatient setting, no randomised trial has yet to evaluate physical therapy in the ED setting. METHODS AND ANALYSIS: This is a single-centre cluster-randomised trial of an embedded ED physical therapy intervention for acute low back pain. We used a covariate-constrained approach to randomise individual physicians (clusters) at an urban academic ED in Chicago, Illinois, USA, to receive, or not receive, an embedded physical therapist on their primary treatment team to evaluate all patients with low back pain. We will then enrol individual ED patients with acute low back pain and allocate them to the embedded physical therapy or usual care study arms, depending on the randomisation assignment of their treating physician. We will follow patients to a primary endpoint of 3 months and compare a primary outcome of change in PROMIS-Pain Interference score and secondary outcomes of change in modified Oswestry Disability Index score and patient-reported opioid use. Our primary approach will be a modified intention-to-treat analysis, whereby all participants who complete at least one follow-up data time point will be included in analyses, regardless of their or their physicians' adherence to their assigned study arm. ETHICS AND DISSEMINATION: This trial is funded by the US Agency for Healthcare Research and Quality (R01HS027426) and was approved by the Northwestern University Institutional Review Board. All physician and patient participants will give written informed consent to study participation. Trial results will be submitted for presentation at scientific meetings and for publication in peer-reviewed journals. TRIAL REGISTRATION NUMBER: ClinicalTrials.gov (NCT04921449).
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Dor Aguda , Dor Lombar , Fisioterapeutas , Dor Aguda/etiologia , Dor Aguda/terapia , Serviço Hospitalar de Emergência , Humanos , Dor Lombar/diagnóstico , Modalidades de Fisioterapia , Ensaios Clínicos Controlados Aleatórios como Assunto , Resultado do TratamentoRESUMO
OBJECTIVE: Recognition of out-of-hospital cardiac arrest (OHCA) during 9-1-1 calls is critically important, but little is known about how laypersons and emergency medical dispatchers (EMDs) communicate. We sought to describe 9-1-1 calls for OHCA. METHODS: We performed a mixed-methods, retrospective analysis of 9-1-1 calls for OHCA victims in a large urban emergency medical services (EMS) system using a random sampling of cases containing the term "cardiopulmonary resuscitation" (CPR) in the EMS electronic report. A constant comparison qualitative approach with four independent reviewers continued until thematic saturation was achieved. Quantitative analysis employed computational linguistics. Callers' emotional states were rated using the emotional content and cooperation score (ECCS). RESULTS: Thematic saturation was achieved after 46 calls. Three "OHCA recognition" themes emerged [ 1) disparate OHCA terms used, 2) OHCA mimics create challenges, 3) EMD questions influence recognition]. Three "CPR facilitation" themes emerged [ 1) directive language may facilitate CPR, 2) specific instructions assist CPR, 3) caller's emotions affect CPR initiation]. Callers were generally "anxious but cooperative." Callers saying "pulse" was associated with OHCA recognition. CONCLUSION: Communication characteristics appear to influence OHCA recognition and CPR facilitation. PRACTICE IMPLICATIONS: Dispatch protocols that acknowledge characteristics of callers' communication may improve OHCA recognition and CPR facilitation.
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Reanimação Cardiopulmonar , Operador de Emergência Médica , Serviços Médicos de Emergência , Parada Cardíaca Extra-Hospitalar , Reanimação Cardiopulmonar/métodos , Comunicação , Sistemas de Comunicação entre Serviços de Emergência , Humanos , Parada Cardíaca Extra-Hospitalar/terapia , Estudos RetrospectivosRESUMO
OBJECTIVE: To describe how emergency medicine resident physicians discuss diagnostic uncertainty during a simulated ED discharge discussion. METHODS: A secondary content analysis of simulated clinical encounter audiotapes completed by emergency medicine residents across two sites. RESULTS: When discussing lack of diagnosis, residents explained the evaluation revealed no cause for symptoms, noted concerning diagnoses that were excluded, and acknowledged both symptoms and patients' feelings. Residents used explicit and implicit language to discuss diagnostic uncertainty with similar frequency. Almost half of the residents discussed the ED role as focused on emergent illness to give patients context for their uncertain diagnoses. However, 28% of residents in this study did not discuss diagnostic uncertainty in any form. All residents provided reassurance. CONCLUSION: Residents use a range of approaches to discuss diagnostic uncertainty with patients at the time of a simulated ED discharge, with some residents omitting discussion of uncertainty entirely. PRACTICE IMPLICATIONS: These findings represent the current state of communication, which needs improvement. These findings do not immediately transfer to clinical practice recommendations, but rather support a need for both further study and development of formal communication training on this topic.
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Medicina de Emergência , Internato e Residência , Médicos , Comunicação , Medicina de Emergência/educação , Serviço Hospitalar de Emergência , Humanos , Alta do Paciente , IncertezaRESUMO
BACKGROUND: Clear communication is integral to good clinical care; however, communication training is cost and time intensive. Mobile applications (apps) may provide a useful adjunct to traditional simulation skills training. OBJECTIVE: To evaluate (1) use of an app for teaching communication skills about diagnostic uncertainty, (2) feedback on app use, and (3) the association between use and skill mastery. PATIENT INVOLVEMENT: The app under study is designed to improve doctor-patient communication. METHODS: The study was a planned sub-analysis of a randomized controlled waitlist trial with emergency medicine resident physicians randomized to receive immediate or delayed access to an educational curriculum focused on diagnostic uncertainty. The curriculum included a web-based interactive module and the app. Metrics describing participants' use of the app, feedback on use, and association of use and achieving mastery in communicating diagnostic uncertainty are reported. Differences between groups utilizing the app were analyzed using Chi-squared test; logistic regression assessed the association between app use and achieving mastery of the communication skill. RESULTS: Among 109 participants completing the trial, only 34 (31.2%) used the app. Most participants engaged with the app on one occasion for a median of 50 min (IQR 31, 87). Senior residents were more likely to use the app than junior residents (41.3% vs 23.8%, p=0.05). Overall reviews were positive; 76% reported the app helped them learn. There was no significant association between app use and achieving mastery of the communication skill in the trial [OR 2.1, 95% CI (0.91-4.84)]. DISCUSSION: Despite positive reviews of app use, overall use was low and there was no association with achieving mastery. PRACTICAL VALUE: Offering an app as an auxiliary training opportunity may be beneficial to some residents, but shouldn't be planned for use as a primary didactic modality unless there is evidence for effectiveness and use is mandated. AVAILABILITY OF DATA AND MATERIALS: The datasets generated and/or analyzed during the current study are not publicly available since some data may be identifiable but are available from the corresponding author on reasonable request.
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Internato e Residência , Aplicativos Móveis , Jogos de Vídeo , Competência Clínica , Currículo , Humanos , Relações Médico-Paciente , IncertezaRESUMO
Emergency department (ED) utilization changed notably during the coronavirus disease 2019 (COVID-19) pandemic in the United States. The purpose of the study was to gain a more thorough understanding of ED patient experience during the early stages of the COVID-19 pandemic. This study used the consensual qualitative approach to analyze open-ended responses from post-ED patient experience surveys from February through July 2020. Comments were included in the analysis if they pertained to care during the pandemic (eg, mentioned "the virus," "masks," "PPE"). A total of 242 COVID-specific comments from 192 unique patients were analyzed (median age 49 years; 69% female). Six themes were identified: visually observed changes, experiences of process changes, expressions of understanding or appreciation, sense of security, COVID-19 disease-specific comments, and "classic" satisfaction comments that align with previous literature on patient experience. The COVID-19 pandemic has challenged health care systems across the world in unique and unprecedented ways. This study identified six themes that better elucidate ED patient experience during an unprecedented public health crisis.
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Health professions education has benefitted from standardized patient (SP) programs to develop and refine communication and interpersonal skills in trainees. Effective case design is essential to ensure an SP encounter successfully meets learning objectives that are focused on communication skills. Creative, well-designed case scenarios offer learners the opportunity to engage in complex patient encounters, while challenging them to address the personal and emotional contexts in which their patients are situated. Therefore, prior to considering the practical execution of the patient encounter, educators will first need a clear and structured strategy for writing, organizing, and developing cases. The authors reflect on lessons learned in developing standardized patient-based cases to train learners to communicate to patients during times of diagnostic uncertainty, and provide suggestions to develop a set of simulation cases that are both standardized and diverse. Key steps and workflow processes that can assist educators with case design are introduced. The authors review the need to increase awareness of and mitigate existing norms and implicit biases, while maximizing variation in patient diversity. Opportunities to leverage the breadth of emotional dispositions of the SP and the affective domain of a clinical encounter are also discussed as a means to guide future case development and maximize the value of a case for its respective learning outcomes.
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INTRODUCTION: The objective of this study was to analyze the messages of influential emergency medicine (EM) Twitter users in the United States (US) during the early stages of the coronavirus disease 2019 (COVID-19) global pandemic by characterizing the themes, emotional tones, temporal viewpoints, and depth of engagement with the tweets. METHODS: We performed a retrospective mixed-methods analysis of publicly available Twitter data derived from the publicly available "Coronavirus Tweet IDs" dataset, March 3, 2020-May 1, 2020. Original tweets and modified retweets in the dataset by 50 influential EM Twitter users in the US were analyzed using linguistic software to report the emotional tone and temporal viewpoint. We qualitatively analyzed a 25% random subsample and report themes. RESULTS: There were 1315 tweets available in the dataset from 36/50 influential EM Twitter users in the US. The majority of tweets were either positive (455/1315, 34.6%) or neutral (407/1315, 31%) in tone and focused on the present (1009/1315, 76.7%). Qualitative analysis identified six distinct themes, with users most often sharing news or clinical information. CONCLUSIONS: During the early weeks of the COVID-19 pandemic, influential EM Twitter users in the US delivered mainly positive or neutral messages, most often pertaining to news stories or information directly relating to patient care. The majority of these messages led to engagement by other users. This study underscores how EM influencers can leverage social media in public health outbreaks to bring attention to topics of importance.