The impact of COVID-19 on the sensitivity of D-dimer for pulmonary embolism.

OBJECTIVE: This study seeks to evaluate the test characteristics of D-dimer for pulmonary embolism (PE) in patients with a concurrent diagnosis of COVID-19. We hypothesized that the sensitivity of D-dimer for PE at current institutional cut points would be similar to those without COVID-19. METHODS: This is a multicenter retrospective observational cohort study across five urban and suburban EDs in the same health care system. The electronic health record was queried for all computed tomography pulmonary angiography (CTPA) studies from December 1, 2019, to October 22, 2020. All ED patients who underwent CTPA had D-dimer and COVID-19 testing completed in a single encounter were included in the study. Baseline demographics were obtained. Test characteristics of D-dimer for PE were calculated for patients with and without COVID-19. Additionally, receiver operator characteristics (ROC) curves were constructed for two different D-dimer assays. RESULTS: There were 1158 patient encounters that met criteria for analysis. Performance of D-dimer testing for PE was similar between COVID-19-positive and -negative patients. In COVID-19-positive patients, the sensitivity was 100% (95% confidence interval [CI] = 87.6%-100%), specificity was 11.9% (95% CI = 7.9%-17.1%), and negative predictive value (NPV) was 100%. In COVID-19-negative patients the sensitivity was 97.6% (95% CI = 91.5%-99.7%), specificity was 14.4% (95% CI = 12.1%-17%), and NPV was 98.3% (95% CI = 93.8%-99.6%). For assay 1 the area under the curve (AUC) for COVID-19-positive patients was 0.76 (95% CI = 0.68-0.83), and for COVID-19-negative patients, 0.73 (95% CI = 0.69-0.77). For assay 2, AUC for COVID-19-positive patients was 0.85 (95% CI = 0.77-0.92), and for COVID-19-negative patients, 0.80 (95% CI = 0.77-0.84). Inspection of the ROC curve for assay 1 revealed that 100% sensitivity was maintained up to a threshold of 0.67 FEU (fibrinogen equivalent units; from 0.50 FEU) with an increase in specificity to 29% (from 18.7%), and for assay 2, 100% sensitivity was maintained up to a threshold of 662 D-dimer units (DDU; from 230 DDU) with an increased specificity to 59% (from 6.1%). CONCLUSION: Results from this multicenter retrospective study did not find a significant difference in sensitivity of D-dimer for PE due to concomitant COVID-19 infection. Further study is required to determine if PE can safely be excluded based on D-dimer results alone in patients with suspected or proven COVID-19 or if adjusted D-dimer levels could have a role in management.

Prolonged Duration of Viral Shedding of SARS-CoV-2: A Case Report.

INTRODUCTION: The literature on the clinical course of severe acute respiratory syndrome coronavirus 2 (SARS-COV-2) suggests patients continue shedding viral particles typically for an average of 20 days until the body builds immunity against the infection. However, a few cases have shown prolonged duration in viral shedding and highlight the significant increased mortality in these patients. It has also been suggested that multiple strains of SARS-COV-2 exist, keying the possibility to reinfection. CASE REPORT: We present a case of a 57-year-old male who presented twice over 37 days with symptoms related to SARS-COV-2, and only on his second visit was found to be in hypoxemic respiratory failure and cardiogenic shock. He also reportedly had a period of convalescence in between presentations. DISCUSSION: This case highlights the still unclear disease course of SARS-COV-2 and the need for diligence in providing strong follow-up instructions and evaluation for sequelae of the infection.

A Critical Disconnect: Residency Selection Factors Lack Correlation With Intern Performance.

BACKGROUND: Emergency medicine (EM) residency programs want to employ a selection process that will rank best possible applicants for admission into the specialty. OBJECTIVE: We tested if application data are associated with resident performance using EM milestone assessments. We hypothesized that a weak correlation would exist between some selection factors and milestone outcomes. METHODS: Utilizing data from 5 collaborating residency programs, a secondary analysis was performed on residents trained from 2013 to 2018. Factors in the model were gender, underrepresented in medicine status, United States Medical Licensing Examination Step 1 and 2 Clinical Knowledge (CK), Alpha Omega Alpha (AOA), grades (EM, medicine, surgery, pediatrics), advanced degree, Standardized Letter of Evaluation global assessment, rank list position, and controls for year assessed and program. The primary outcomes were milestone level achieved in the core competencies. Multivariate linear regression models were fitted for each of the 23 competencies with comparisons made between each model's results. RESULTS: For the most part, academic performance in medical school (Step 1, 2 CK, grades, AOA) was not associated with residency clinical performance on milestones. Isolated correlations were found between specific milestones (eg, higher surgical grade increased wound care score), but most had no correlation with residency performance. CONCLUSIONS: Our study did not find consistent, meaningful correlations between the most common selection factors and milestones at any point in training. This may indicate our current selection process cannot consistently identify the medical students who are most likely to be high performers as residents.

Can Sudden Cardiac Death Risk in the Young be Identified in the Emergency Department?

Sudden cardiac death in the young is devastating for the family and the community. Although it has diverse etiologies, many are inherited. Discovering the disease in 1 patient offers the chance to save otherwise asymptomatic family members. Although some diseases can be discovered during autopsy, others require electrocardiograms for diagnosis, making it difficult to estimate the prevalence of disease and cause of death. Careful assessment of the history of present illness, family history, and electrocardiogram can guide clinical teams toward sometimes rare and difficult diagnoses. The purpose of this review article is to summarize the bench to bedside diagnosis of inherited dysrhythmia syndromes, which if missed on first presentation to the emergency department, have significant implications for the patient and the entire family.

Teaching the Emergency Department Patient Experience: Needs Assessment from the CORD-EM Task Force.

INTRODUCTION: Since the creation of Hospital Consumer Assessment of Healthcare Providers and Systems (HCAHPS) patient satisfaction (PS) scores, patient experience (PE) has become a metric that can profoundly affect the fiscal balance of hospital systems, reputation of entire departments and welfare of individual physicians. While government and hospital mandates demonstrate the prominence of PE as a quality measure, no such mandate exists for its education. The objective of this study was to determine the education and evaluation landscape for PE in categorical emergency medicine (EM) residencies. METHODS: This was a prospective survey analysis of the Council of Emergency Medicine Residency Directors (CORD) membership. Program directors (PDs), assistant PDs and core faculty who are part of the CORD listserv were sent an email link to a brief, anonymous electronic survey. Respondents were asked their position in the residency, the name of their department, and questions regarding the presence and types of PS evaluative data and PE education they provide. RESULTS: We obtained 168 responses from 139 individual residencies, representing 72% of all categorical EM residencies. This survey found that only 27% of responding residencies provide PS data to their residents. Of those programs, 61% offer simulation scores, 39% provide third-party attending data on cases with resident participation, 37% provide third-party acquired data specifically about residents and 37% provide internally acquired quantitative data. Only 35% of residencies reported having any organized PE curricula. Of the programs that provide an organized PE curriculum, most offer multiple modalities; 96% provide didactic lectures, 49% small group sessions, 47% simulation sessions and 27% specifically use standardized patient encounters in their simulation sessions. CONCLUSION: The majority of categorical EM residencies do not provide either PS data or any organized PE curriculum. Those that do use a heterogeneous set of data collection modalities and educational techniques. American Osteopathic Association and Accreditation Council for Graduate Medical Education residencies show no significant differences in their resident PS data provision or formal curricula. Further work is needed to improve education given the high stakes of PS scores in the emergency physician's career.

A Delphi Method Analysis to Create an Emergency Medicine Educational Patient Satisfaction Survey.

INTRODUCTION: Feedback on patient satisfaction (PS) as a means to monitor and improve performance in patient communication is lacking in residency training. A physician's promotion, compensation and job satisfaction may be impacted by his individual PS scores, once he is in practice. Many communication and satisfaction surveys exist but none focus on the emergency department setting for educational purposes. The goal of this project was to create an emergency medicine-based educational PS survey with strong evidence for content validity. METHODS: We used the Delphi Method (DM) to obtain expert opinion via an iterative process of surveying. Questions were mined from four PS surveys as well as from group suggestion. The DM analysis determined the structure, content and appropriate use of the tool. The group used four-point Likert-type scales and Lynn's criteria for content validity to determine relevant questions from the stated goals. RESULTS: Twelve recruited experts participated in a series of seven surveys to achieve consensus. A 10-question, single-page survey with an additional page of qualitative questions and demographic questions was selected. Thirty one questions were judged to be relevant from an original 48-question list. Of these, the final 10 questions were chosen. Response rates for individual survey items was 99.5%. CONCLUSION: The DM produced a consensus survey with content validity evidence. Future work will be needed to obtain evidence for response process, internal structure and construct validity.