245 results match your criteria: "and Boutis; and University of Toronto[Affiliation]"

Background: Despite the high number of children treated in emergency departments, patient safety risks in this setting are not well quantified. Our objective was to estimate the risk and type of adverse events, as well as their preventability and severity, for children treated in a paediatric emergency department.

Methods: Our prospective, multicentre cohort study enrolled children presenting for care during one of 168 8-hour study shifts across nine paediatric emergency departments.

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The peculiar dermatoscopic pattern of scalp melanoma.

J Eur Acad Dermatol Venereol

September 2022

First Dermatology Department, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece.

Background: Melanomas developing on anatomic sites other than the trunk and extremities have a special pathogenetic and mutational profile, morphologic characteristics and biologic behaviour.

Objective: By retrospectively screening the databases of our centres, we aimed to investigate the dermatoscopic morphology of early scalp melanoma, including in situ and invasive tumours with a Breslow thickness up to 1 mm.

Methods: The databases of three specialized centres for skin cancer diagnosis and management in Greece were retrospectively evaluated to retrieve dermatoscopic images of scalp melanomas.

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Pediatric Musculoskeletal Radiographs: Anatomy and Fractures Prone to Diagnostic Error Among Emergency Physicians.

J Emerg Med

April 2022

Division of Pediatric Emergency Medicine, Department of Pediatrics, Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada.

Background: Pediatric musculoskeletal (pMSK) radiograph interpretations are common, but the specific radiograph features at risk of incorrect diagnosis are relatively unknown.

Objective: We determined the radiograph factors that resulted in diagnostic interpretation challenges for emergency physicians (EPs) reviewing pMSK radiographs.

Methods: EPs interpreted 1850 pMSK radiographs via a web-based platform and we derived interpretation difficulty scores for each radiograph in 13 body regions using one-parameter item response theory.

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Objective: To assess the co-occurrence and clustering of post-concussive symptoms in children, and to identify distinct patient phenotypes based on symptom type and severity.

Methods: We performed a secondary analysis of the prospective, multicentre Predicting and Preventing Post-concussive Problems in Pediatrics (5P) cohort study, evaluating children 5-17 years of age presenting within 48 hours of an acute concussion. Our primary outcome was the simultaneous occurrence of two or more persistent post-concussive symptoms on the Post-Concussion Symptom Inventory at 28 days post-injury.

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Learning Pediatric Point-of-Care Ultrasound: How Many Cases Does Mastery of Image Interpretation Take?

Pediatr Emerg Care

February 2022

Division of Pediatric Emergency Medicine, Department of Pediatrics, Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada.

Objectives: Using an education and assessment tool, we examined the number of cases necessary to achieve a performance benchmark in image interpretation of pediatric soft tissue, cardiac, lung, and focused assessment with sonography for trauma (FAST) point-of-care ultrasound (POCUS) applications. We also determined interpretation difficulty scores to derive which cases provided the greatest diagnostic challenges.

Methods: Pediatric emergency physicians participated in web-based pediatric POCUS courses sponsored by their institution as a credentialing priority.

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Background/aim: This study aimed to provide real-world safety and effectiveness data of everolimus (EVE) plus exemestane (EXE) in estrogen receptor positive/human epidermal growth factor receptor 2 negative (ER/HER2) advanced breast cancer (aBC).

Patients And Methods: This prospective observational study was conducted by 19 hospital-based oncologists in Greece. Eligible patients were treated with EVE+EXE in the first-line setting; EVE was initiated according to the approved label.

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Vaccine third dose and cancer patients: necessity or luxury?

ESMO Open

December 2021

Hellenic Society of Medical Oncology (HeSMO), Athens, Greece. Electronic address:

The current state of the SARS-CoV-2 pandemic is an equilibrium between expanding vaccine coverage on the one hand, and emergence of variants of concern which compromise vaccine effectiveness and enhance viral transmission on the other. Inequity in vaccine distribution, primarily an ethical issue, challenges this equilibrium, as industrialized countries prepare to administer a third booster dose to their population. Solid tumor cancer patients typically respond well to initial full vaccination and someone could argue that they should not be prioritized for an adjuvant third dose, since protection from severe disease has largely been achieved with the two-dose regimen.

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Purpose: Epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs) are the preferred first-line option for patients with advanced, EGFR-mutant non-small cell lung cancer (NSCLC). Afatinib, a second-generation irreversible EGFR-TKI, has been extensively used in Greece in this setting; however, real-world data regarding molecular epidemiology and financial implications of afatinib use are lacking.

Materials And Methods: This was an observational, non-interventional, multicenter, retrospective cohort study, based on real-world data collected from the medical charts/records of patients treated with afatinib between 15/03/2015 and 25/06/2020 and were recorded on a web-based data capture system.

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Edoxaban versus Vitamin K Antagonist for Atrial Fibrillation after TAVR.

N Engl J Med

December 2021

From the Department of Cardiology, Erasmus University Medical Center, Thoraxcenter, Rotterdam, the Netherlands (N.M.V.M., E.B.); Daiichi Sankyo, Basking Ridge, NJ (M.U., J.J., A.D., C.C.); the Department of Internal Medicine II, Division of Cardiology, Vienna General Hospital, Medical University, Vienna (C.H., I.L.); the Department of Internal Medicine, St. Johannes Hospital, Dortmund (H.M.), the Department of Internal Medicine I, University Hospital Würzburg, Würzburg (P.N.), the Department of Internal Medicine-Cardiology, Heart Center Leipzig at University of Leipzig, Leipzig (H.T.), Bremer Institute for Heart and Circulation Research at Klinikum Links der Weser, Bremen (R.H.), the Department of Cardiology, Asklepios Klinik St. Georg, Hamburg (F.M.), Daiichi Sankyo Europe, Munich (P.L., H.L.), the Department of Neurology, Alfried Krupp Krankenhaus, Essen (R.V.), and the Department of Neurology, University Hospital Heidelberg, Heidelberg (R.V.) - all in Germany; Zena and Michael A. Wiener Cardiovascular Institute, Mount Sinai Hospital, New York (R. Mehran, G.D.D.); the Department of Cardiology, Centro de Investigación Biomédica en Red Enfermedades Cardiovasculares, Hospital Clínico Universitario de Santiago de Compostela, Santiago de Compostela (D.L.-O.), the Cardiovascular Institute, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria San Carlos (L.N.-F.), the Department of Cardiology, University Hospital La Paz (R. Moreno), and the Department of Cardiology, University Hospital Ramon y Cajal (J.L.Z.), Madrid - all in Spain; the Department of Cardiology, Washington Adventist Hospital, Takoma Park, MD (F.S.); the Department of Cardiology, Toyohashi Heart Center, Toyohashi (M.Y.), the Department of Cardiology, Teikyo University School of Medicine (Y.W.), and the Department of Cardiology, Keio University School of Medicine (K.H.), Tokyo, and the Division of Cardiology and Catheterization Laboratories, Shonan Kamakura General Hospital, Kamakura (S.S.) - all in Japan; the Department of Cardiology, Jessa Hospital, Hasselt, Belgium (P.V.); Quebec Heart and Lung Institute, Laval University, Quebec, QC, Canada (J.R.-C.); the Division of Cardiovascular Medicine, University Hospital of Strasbourg, Strasbourg, France (P.O.); the Division of Cardiology, Policlinico Hospital, University of Catania, Catania, Italy (P.C.); the Department of Internal Medicine, Cardiovascular Center, Seoul National University Hospital, Seoul, South Korea (H.-S.K.); the Department of Cardiology, University of Bern, Bern (T.P.), and Cardiocentro Ticino Institute and Department of Biomedical Sciences, University of Italian Switzerland, Lugano (M.V.) - both in Switzerland; the Department of Cardiology, University Hospital of Wales, Cardiff (R.A.), and the Division of Brain Sciences, Imperial College London, London (R.V.) - both in the United Kingdom; the Cardiology Section, University of Oklahoma Health Sciences Center, Oklahoma City (U.B.); and National and Kapodistrian University of Athens, School of Medicine, Athens (G.D.D.).

Background: The role of direct oral anticoagulants as compared with vitamin K antagonists for atrial fibrillation after successful transcatheter aortic-valve replacement (TAVR) has not been well studied.

Methods: We conducted a multicenter, prospective, randomized, open-label, adjudicator-masked trial comparing edoxaban with vitamin K antagonists in patients with prevalent or incident atrial fibrillation as the indication for oral anticoagulation after successful TAVR. The primary efficacy outcome was a composite of adverse events consisting of death from any cause, myocardial infarction, ischemic stroke, systemic thromboembolism, valve thrombosis, or major bleeding.

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Management of Toddler's Fracture: A Systematic Review With Meta-Analysis.

Pediatr Emerg Care

February 2022

Division of Emergency Medicine, Department of Pediatrics, The Hospital for Sick Children and University of Toronto, Toronto, Canada.

Article Synopsis
  • The study aimed to compare the outcomes of treating toddler's fractures (TFs) with immobilization versus no immobilization in children, focusing on potential complications and health service use.
  • Despite finding no significant difference in fracture-related adverse outcomes between the two treatment strategies, those in the immobilization group had more radiographs and orthopedic visits but fewer return emergency visits.
  • The authors suggest that not using immobilization might be a safe option for treating minor fractures in children, but they call for higher-quality studies to provide better evidence and consider factors like patient recovery and caregiver satisfaction in future research.
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Background: Data on the safety and efficacy of immune checkpoint inhibitors (ICI) in patients with concurrent autoimmune diseases (AID) are limited.

Methods: We performed a retrospective multicenter review of medical records of patients with cancer and underlying AID who received ICI. The primary endpoint was progression-free survival (PFS).

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Objective: While short-term gains in performance of critical emergency procedures are demonstrated after simulation, long-term retention is relatively uncertain. Our objective was to determine whether simulation of critical emergency procedures promotes long-term retention of skills in nonsurgical physicians.

Methods: We searched multiple electronic databases using a peer-reviewed strategy.

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Construct: For assessing the skill of visual diagnosis such as radiograph interpretation, competency standards are often developed in an ad hoc method, with a poorly delineated connection to the target clinical population.

Background: Commonly used methods to assess for competency in radiograph interpretation are subjective and potentially biased due to a small sample size of cases, subjective evaluations, or include an expert-generated case-mix versus a representative sample from the clinical field. Further, while digital platforms are available to assess radiograph interpretation skill against an objective standard, they have not adopted a data-driven competency standard which informs educators and the public that a physician has achieved adequate mastery to enter practice where they will be making high-stakes clinical decisions.

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Objectives: Using a sample of pediatric chest radiographs (pCXR) taken to rule out pneumonia, we obtained diagnostic interpretations from physicians and used learning analytics to determine the radiographic variables and participant review processes that predicted for an incorrect diagnostic interpretation.

Methods: This was a prospective cross-sectional study. A convenience sample of frontline physicians with a range of experience levels interpreted 200 pCXR presented using a customized online radiograph presentation platform.

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Study Objective: In patients with a distal radius buckle fracture, we determine whether home removal of a splint and physician follow-up as needed (home management) is noninferior to primary care physician follow-up in 1 to 2 weeks with respect to functional recovery. We also compare groups with respect to health care and patient-level costs.

Methods: This was a noninferiority randomized controlled trial conducted at a tertiary care children's hospital.

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Prepubescent Female Genital Examination Images: Evidence-Informed Learning Opportunities.

J Pediatr Adolesc Gynecol

April 2021

Division of Pediatric Emergency Medicine, Department of Pediatrics, Hospital for Sick Children and University of Toronto, Toronto, Ontario, Canada. Electronic address:

Objectives: To determine diagnoses and image features that are associated with difficult prepubescent female genital image interpretations.

Design And Setting: This was a mixed-methods study conducted at a tertiary care pediatric center using images from a previously developed education platform.

Participants: Participants comprised 107 medical students, residents, fellows, and attendings who interpreted 158 cases to derive case difficulty estimates.

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Background: In most states, prehospital professionals (PHPs) are mandated reporters of suspected abuse but cite a lack of training as a challenge to recognizing and reporting physical abuse. We developed a learning platform for the visual diagnosis of pediatric abusive versus non-abusive burn and bruise injuries and examined the amount and rate of skill acquisition.

Methods: This was a prospective cross-sectional study of PHPs participating in an online educational intervention containing 114 case vignettes.

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Symptom Burden, School Function, and Physical Activity One Year Following Pediatric Concussion.

J Pediatr

January 2021

Children's Hospital of Eastern Ontario Research Institute, Ottawa, Canada; Faculty of Medicine, University of Ottawa, Ottawa, Canada.

Objectives: To characterize symptom burden, school function, and physical activity in youth 1 year following acute concussion and those with subsequent repeat concussion.

Study Design: Secondary analysis of Predicting Persistent Postconcussive Problems in Pediatrics prospective, multicenter cohort study conducted in 9 Canadian emergency departments. Participants were children between ages 5 and 18 years who presented consecutively ≤48 hours of concussion and agreed to participate in a post hoc electronic survey 1 year after injury.

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Background: We evaluated real-world clinical outcomes and toxicity data and assessed treatment-related costs in patients with advanced breast cancer who received treatment with cyclin-dependent kinase inhibitors (CDKi).

Patients And Methods: We conducted a prospective-retrospective analysis of patients with advanced hormone receptor-positive, human epidermal growth factor receptor 2-negative breast cancer who received a CDKi, in combination with endocrine therapy, at any line of treatment. The primary endpoint was progression-free survival (PFS).

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A 12-year-old male injured his ankle while playing hockey (Figure 1). His dad reports that he was checked into the boards. His ankle is swollen, but does not appear deformed.

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Objectives: To complement bedside learning of point-of-care ultrasound (POCUS), we developed an online learning assessment platform for the visual interpretation component of this skill. This study examined the amount and rate of skill acquisition in POCUS image interpretation in a cohort of pediatric emergency medicine (PEM) physician learners.

Methods: This was a multicenter prospective cohort study.

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Persistent ventilation inhomogeneity after an acute exacerbation in preschool children with recurrent wheezing.

Pediatr Allergy Immunol

August 2020

Division of Respiratory Medicine, Department of Paediatrics, Program in Translational Medicine, SickKids Research Institute, The Hospital for Sick Children, Toronto, Canada.

Background: Preschool children with recurrent wheezing suffer high morbidity. It is unclear whether objective measures of asthma control, such as pulmonary function tests (PFTs), provide additional information to the clinical assessment.

Methods: We recruited children between 3 and 6 years old, with a history of recurrent wheezing in the preceding year and treated for acute wheezing exacerbation in the emergency department (ED) into an observational cohort study.

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Models for diagnostic reasoning in radiology have been based on the observed behaviors of experienced radiologists but have not directly focused on the thought processes of novices as they improve their accuracy of image interpretation. By collecting think-aloud verbal reports, the current study was designed to investigate differences in specific thought processes between medical students (novices) as they learn and radiologists (experts), so that we can better design future instructional environments. Seven medical students and four physicians with radiology training were asked to interpret and diagnose pediatric elbow radiographs where fracture is suspected.

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