Definitions and factors associated with emergency physician productivity: a scoping review.

PURPOSE: There currently exists no standard productivity measure for emergency physicians. The objectives of this scoping review were to synthesize the literature to identify components of definitions and measurements of emergency physician productivity and to evaluate factors associated with productivity. METHODS: We searched Medline, Embase, CINAHL, and ProQuest One Business from inception to May 2022. We included all studies that reported on emergency physician productivity. We excluded studies that only reported departmental productivity, studies with non-emergency providers, review articles, case reports, and editorials. Data were extracted into predefined worksheets and a descriptive summary was presented. Quality analysis was performed with Newcastle-Ottawa Scale. RESULTS: After screening 5521 studies, 44 studies met full inclusion criteria. Components of the definition for emergency physician productivity included: number of patients managed, revenue generated, patient processing time, and a standardization factor. Most studies measured productivity using patients per hour, relative value units per hour, and provider-to-disposition time. The most studied factors influencing productivity included scribes, resident learners, electronic medical record implementation, and faculty teaching scores. CONCLUSION: Emergency physician productivity is heterogeneously defined, but includes common elements such as patient volume, complexity, and processing time. Commonly reported productivity metrics include patients per hour and relative value units that incorporate patient volume and complexity, respectively. The findings of this scoping review can guide ED physicians and administrators to measure the impact of QI initiatives, promote efficient patient care, and optimize physician staffing.

RéSUMé: OBJECTIF: Il n'existe actuellement aucune mesure de productivité standard pour les médecins urgentistes. L'objectif de cet examen de la portée était de synthétiser la littérature afin d'identifier les composantes des définitions et des mesures de la productivité des médecins urgentistes et d'évaluer les facteurs associés à la productivité. MéTHODES: Nous avons effectué des recherches dans Medline, Embase, CINAHL et ProQuest One Business depuis le début jusqu'à mai 2022. Nous avons inclus toutes les études portant sur la productivité des médecins urgentistes. Nous avons exclu les études qui ne faisaient état que de la productivité du service, les études portant sur des prestataires de soins non urgents, les articles de synthèse, les rapports de cas et les éditoriaux. Les données ont été extraites dans des feuilles de travail prédéfinies et un résumé descriptif a été présenté. L'analyse de la qualité a été réalisée à l'aide de l'échelle de Newcastle-Ottawa. RéSULTATS: Après la sélection de 5521 études, 44 études répondaient à tous les critères d'inclusion. Les éléments de la définition de la productivité des médecins urgentistes comprenaient : le nombre de patients pris en charge, les revenus générés, le temps de traitement des patients et un facteur de normalisation. La plupart des études ont mesuré la productivité en utilisant le nombre de patients par heure, les unités de valeur relative par heure et le temps de prise en charge par le prestataire. Les facteurs influençant la productivité les plus étudiés comprenaient les scribes, les apprenants résidents, la mise en œuvre du dossier médical électronique et les scores d'enseignement de la faculté. CONCLUSION: La productivité des médecins urgentistes est définie de manière hétérogène mais comprend des éléments communs tels que le volume de patients, la complexité et le temps de traitement. Les indicateurs de productivité couramment utilisés sont le nombre de patients par heure et les unités de valeur relative qui intègrent respectivement le volume et la complexité des patients. Les résultats de cette étude de la portée peuvent aider les médecins et les administrateurs des urgences à mesurer l'impact des initiatives d'amélioration de la qualité, à promouvoir l'efficacité des soins aux patients et à optimiser la dotation en personnel médical.

Examining enablers and barriers to entrustable professional activity acquisition using the theoretical domains framework: A qualitative framework analysis study.

Background: Without a clear understanding of the factors contributing to the effective acquisition of high-quality entrustable professional activity (EPA) assessments, trainees, supervising faculty, and training programs may lack appropriate strategies for successful EPA implementation and utilization. The purpose of this study was to identify barriers and facilitators to acquiring high-quality EPA assessments in Canadian emergency medicine (EM) training programs. Methods: We conducted a qualitative framework analysis study utilizing the Theoretical Domains Framework (TDF). Semistructured interviews of EM resident and faculty participants underwent audio recording, deidentification, and line-by-line coding by two authors, being coded to extract themes and subthemes across the domains of the TDF. Results: From 14 interviews (eight faculty and six residents) we identified, within the 14 TDF domains, major themes and subthemes for barriers and facilitators to EPA acquisition for both faculty and residents. The two most cited domains (and their frequencies) among residents and faculty were environmental context and resources (56) and behavioral regulation (48). Example strategies to improving EPA acquisition include orienting residents to the competency-based medical education (CBME) paradigm, recalibrating expectations relating to "low ratings" on EPAs, engaging in continuous faculty development to ensure familiarity and fluency with EPAs, and implementing longitudinal coaching programs between residents and faculty to encourage repetitive longitudinal interactions and high-quality specific feedback. Conclusions: We identified key strategies to support residents, faculty, programs, and institutions in overcoming barriers and improving EPA assessment processes. This is an important step toward ensuring the successful implementation of CBME and the effective operationalization of EPAs within EM training programs.

Arterial-embolic Strokes and Painless Vision Loss Due to Phase II Aortitis and Giant Cell Arteritis: A Case Report.

INTRODUCTION: Aortitis refers to abnormal inflammation of the aorta, most commonly caused by giant cell arteritis (GCA). Herein, we present a 57-year-old female with aortitis and arterial-embolic strokes secondary to GCA. CASE REPORT: Our patient presented to the emergency department following an episode of transient, monocular, painless vision loss. Computed tomography angiogram head and neck demonstrated phase II aortitis, and magnetic resonance imaging revealed evidence of arterial-embolic strokes. CONCLUSION: Cerebrovascular accident is a rare complication of large-vessel vasculitis and can occur due to multiple underlying etiologies including intracranial vasculitis, aortic branch proximal occlusion, or arterial-embolic stroke.

Creation and implementation of the Ottawa Handbook of Emergency Medicine.

Implication Statement Medical students face multiple academic challenges during their transition to clerkship, including the ability to navigate various educational resources and translate acquired knowledge clinically. The Ottawa Handbook of Emergency Medicine (EM) was created by referencing EM textbooks and relevant literature, followed by a local peer-review process. A website metrics assessment was performed to assess student uptake. Implementation of the Ottawa Handbook of EM across Canadian clerkship curriculums is anticipated to bridge the EM knowledge gap for junior learners. Énoncé des implications de la recherche Les étudiants en médecine sont confrontés à de multiples défis académiques au moment de leur transition vers l'externat, notamment à celui de se servir de diverses ressources éducatives et d'appliquer leurs connaissances dans un contexte clinique. Le Guide d'Ottawa de médecine d'urgence (MU) a été élaboré à partir de manuels de MU et de la littérature pertinente, et il a fait l'objet d'un processus local d'examen par les pairs. Une évaluation bibliométrique a été effectuée pour évaluer son utilisation par les étudiants. L'application du Guide d'Ottawa de médecine d'urgence dans le cadre des cursus canadiens d'externat devrait permettre de combler les lacunes qu'auraient les étudiants débutants en matière de médecine d'urgence.

Selective wavelength conversion in a few-mode fiber.

We experimentally demonstrate a means to selectively enhance wavelength conversion of WDM channels on a 100 GHz grid exploiting nonlinear effects between the spatial modes of a few mode fiber. The selectivity of parametric gain is obtained by dispersion design of the fiber such that the inverse group velocity curves of the participating modes are parallel and their dispersion is suitably large. We describe both theoretically and experimentally the observed dependence of the idler gain profile on pump mode (quasi) degeneracy.

Computed tomography for suspected pulmonary embolism results in a large number of non-significant incidental findings and follow-up investigations.

INTRODUCTION: Computed tomographic pulmonary angiograms (CTPAs) are often ordered to evaluate pulmonary embolism (PE) in the emergency department (ED). The increase use of CTPA has led to an increase in incidental findings, often of low clinical significance. Our objectives were to (1) assess the prevalence and clinical significance of incidental findings identified in patients evaluated with CTPAs for PE in the ED, (2) evaluate follow-up investigations for these incidental findings, and (3) assess the utility of routine chest X-rays done prior to CTPA. METHODS: This is a historical cohort study of adult patients, presenting to two tertiary care EDs from January-December 2015, evaluated with CTPA for possible PE. Two reviewers' extracted data from electronic CT records in a standardized fashion with inter-rater reliability reported using the kappa statistic. We measured the prevalence of PE and stratified non-PE findings according to alternative diagnoses and incidental findings. Data were reported as mean and standard deviation (SD). Univariate analyses were performed with t test for continuous variables. RESULTS: A total of 1708 studies were included (mean 62 years (SD 16.7), 56.9% female). PE was found in 233 (13.6%) patients. A total of 223 (13.1%) patients had an incidental finding, the majority of which included pulmonary nodules (n = 83, 37.2%) and adenopathy (n = 26, 11.6%). Of the incidental findings, 197 (88.3%) were non-significant and led to no definitive diagnosis of cancer. In patients who underwent both CTPA and chest X-ray, X-ray reports revealed the same diagnosis in 77% of PE-negative patients without missing a clinically significant incidental finding. CONCLUSIONS: Incidental findings are as common as a diagnosis of PE in patients undergoing CTPA. They are rarely clinically significant. Chest radiograph remains a reasonable initial investigation as it can aid in identifying alternative diagnoses especially in the setting of a low pre-test probability for PE.

What Is the Specificity of the Aortic Dissection Detection Risk Score in a Low-prevalence Population?

BACKGROUND: Acute aortic syndrome (AAS) is a time-sensitive and difficult-to-diagnose aortic emergency. The American Heart Association (AHA) proposed the acute aortic dissection detection risk score (ADD-RS) as a means to reduce miss rate and improve time to diagnosis. Previous validation studies were performed in a high prevalence population of patients. We do not know how the rule will perform in a lower-prevalence population. This is important because application of a rule with low specificity would increase imaging rates and complications. Our goal was to assess if the diagnostic accuracy of the score would be maintained in a low-prevalence population that we are attempting to risk stratify in the emergency department (ED). METHODS: Retrospective cohort of patients age 18 years old and older who presented to two tertiary care EDs from January 1, 2015, to December 31, 2015, and underwent a computed tomographic angiography to rule out AAS. Two trained reviewers extracted data using a standardized data collection form. AAS was defined according to accepted radiologic standards. The components of the AHA risk score were defined a priori. Agreement was measured using kappa statistic. Sensitivity, specificity, and positive and negative likelihood ratios with 95% confidence intervals (CIs) were calculated. Analysis was performed using SAS 9.4 University Edition. RESULTS: A total 370 patients underwent computed tomography for suspected AAS. Chief presenting symptoms were chest pain (207, 58%), back pain (26, 7%), abdominal pain (32, 8.6%), syncope (7, 2.6%), and symptoms of stroke (6, 1.6%). AAS was finally diagnosed in 12 (3.2%) patients: five (1.4%) type A aortic dissection, four (1%) type B aortic dissection, two (0.5%) an aortic intramural hematoma, no penetrating aortic ulcer, and one a ruptured abdominal aortic aneurysm. The presence of one or more ADD risk markers (ADD-RS ≥ 1) was associated with a sensitivity of 100% (95% CI = 73.5%-100%) and a specificity of 12.3% (95% CI = 9.1%-16.2%) for the diagnosis of AAS. The negative likelihood ratio was 0 and the positive likelihood ratio was 1.14 (95% CI = 1.1-1.2). CONCLUSIONS: Our study confirms that in North America the prevalence of AAS in those undergoing advanced imaging is low. The ADD-RS in this population has a low specificity. A lack of defined inclusion criteria and a low specificity limits the application of this rule in practice.

Variation in emergency department use of computed tomography for investigation of acute aortic dissection.

INTRODUCTION: Acute aortic dissection (AAD) is a life-threatening condition making early diagnosis critical. Although 90% present with acute pain, the myriad of associated symptoms can make diagnosis a challenge. Our objective was to assess how we are using computed tomography to rule out acute aortic dissection specifically rate of ordering, diagnostic yield, and variation in practice. METHODS: We included consecutive adult patients presenting to two tertiary academic care emergency departments over one calendar year presenting with non-traumatic chest, back, abdominal, or flank pain. Primary outcome was rate of CT thorax/abdomen ordered to rule out AAD. Secondary outcome was variation in CT ordering, measured comparing number of CTs ordered per physician. Sample size of 12 per group was calculated based on an expected delta in mean CT ordered of 5 and a within group SD of 3. RESULTS: Thirty-one thousand two hundred one patients presented with truncal pain during the study period, 22,729 were included (mean 47 years, SD 18.5 years, 56.2% female); prevalence of AAD (N = 4) was 0.02%. CT was ordered to rule out AAD in 175 (0.7%) patients (mean 62 years, SD 16.5, 50.6% female). Significant variation between physicians ordering was found, with individual physicians ordering varying from 0.6 to 12%. CONCLUSIONS: Current rate of imaging for acute aortic dissection is low and potentially inefficient, with a large variation in practice. These findings suggest potential for more standardized and efficient use of CT for the diagnosis of acute aortic dissection.

High Risk Clinical Features for Acute Aortic Dissection: A Case-Control Study.

BACKGROUND: Acute aortic dissection (AAD) is a rare condition with a high mortality that is often missed. The objective of our study was to assess the diagnostic accuracy of clinical and laboratory findings for AAD, in confirmed cases of AAD and in a low-risk control group. METHODS: This was a historical matched case-control study: participants were adults > 18 years old presenting to two tertiary care emergency departments (EDs) or one regional cardiac referral center. Cases were patients with new ED or in-hospital diagnosis of nontraumatic AAD confirmed by computed tomography or echocardiography. Controls were patients with a triage diagnosis of truncal pain (<14 days) and an absence of a clear diagnosis on basic investigation. Cases and controls were matched in a 1:4 ratio by sex and age. A sample size of 165 cases and 660 controls was calculated based on 80% power and confidence interval of 95% to detect an odds ratio of greater than 2. RESULTS: Data were collected from 2002 to 2014 yielding 194 cases of AAD and 776 controls (mean ± SD age = 65 ± 14.1 years; 66.7% male). Absence of abrupt-onset pain (sensitivity = 95.9%, negative likelihood ratio = 0.07 [0.03-0.14]) can help rule out AAD. Presence of tearing/ripping pain (specificity = 99.7%, positive likelihood ratio [LR+] = 42.1 [9.9-177.5]), aortic aneurysm (specificity = 97.8%, LR+ = 6.35 [3.54-11.42]), hypotension (specificity = 98.7%, LR+ = 17.2 [8.8-33.6]), pulse deficit (specificity = 99.3, LR+ = 31.1 [11.2-86.6]), neurologic deficits (specificity = 96.9%, LR+ = 5.26 [2.9-9.3]), and a new murmur (specificity = 97.8%, LR+ = 9.4 [5.5-16.2]) can help rule in the diagnosis of AAD. CONCLUSIONS: Patients with one or more high-risk feature should be considered high risk, whereas patients with no high-risk and multiple low-risk features are at low risk for AAD.