Prevalence of Clinical and Subclinical Myocarditis in Competitive Athletes With Recent SARS-CoV-2 Infection: Results From the Big Ten COVID-19 Cardiac Registry.

Importance: Myocarditis is a leading cause of sudden death in competitive athletes. Myocardial inflammation is known to occur with SARS-CoV-2. Different screening approaches for detection of myocarditis have been reported. The Big Ten Conference requires comprehensive cardiac testing including cardiac magnetic resonance (CMR) imaging for all athletes with COVID-19, allowing comparison of screening approaches. Objective: To determine the prevalence of myocarditis in athletes with COVID-19 and compare screening strategies for safe return to play. Design, Setting, and Participants: Big Ten COVID-19 Cardiac Registry principal investigators were surveyed for aggregate observational data from March 1, 2020, through December 15, 2020, on athletes with COVID-19. For athletes with myocarditis, presence of cardiac symptoms and details of cardiac testing were recorded. Myocarditis was categorized as clinical or subclinical based on the presence of cardiac symptoms and CMR findings. Subclinical myocarditis classified as probable or possible myocarditis based on other testing abnormalities. Myocarditis prevalence across universities was determined. The utility of different screening strategies was evaluated. Exposures: SARS-CoV-2 by polymerase chain reaction testing. Main Outcome and Measure: Myocarditis via cardiovascular diagnostic testing. Results: Representing 13 universities, cardiovascular testing was performed in 1597 athletes (964 men [60.4%]). Thirty-seven (including 27 men) were diagnosed with COVID-19 myocarditis (overall 2.3%; range per program, 0%-7.6%); 9 had clinical myocarditis and 28 had subclinical myocarditis. If cardiac testing was based on cardiac symptoms alone, only 5 athletes would have been detected (detected prevalence, 0.31%). Cardiac magnetic resonance imaging for all athletes yielded a 7.4-fold increase in detection of myocarditis (clinical and subclinical). Follow-up CMR imaging performed in 27 (73.0%) demonstrated resolution of T2 elevation in all (100%) and late gadolinium enhancement in 11 (40.7%). Conclusions and Relevance: In this cohort study of 1597 US competitive athletes with CMR screening after COVID-19 infection, 37 athletes (2.3%) were diagnosed with clinical and subclinical myocarditis. Variability was observed in prevalence across universities, and testing protocols were closely tied to the detection of myocarditis. Variable ascertainment and unknown implications of CMR findings underscore the need for standardized timing and interpretation of cardiac testing. These unique CMR imaging data provide a more complete understanding of the prevalence of clinical and subclinical myocarditis in college athletes after COVID-19 infection. The role of CMR in routine screening for athletes safe return to play should be explored further.

Interim Guidance on the Preparticipation Physical Examination for Athletes During the SARS-CoV-2 Pandemic.

The American Medical Society for Sports Medicine (AMSSM) convened a writing group to address the current evidence and knowledge gaps regarding preparticipation evaluation of athletes during the SARS-CoV2 pandemic. The writing group held a series of meetings beginning in April 2020. The task force reviewed the available literature and used an iterative process and expert consensus to finalize this guidance statement that is intended to provide clinicians with a clinical framework to return athletes of all levels to training and competition during the pandemic. The statement is not intended to address treatment, infection control principles, or public health issues related to SARS-CoV2. The AMSSM task force acknowledges the clinical uncertainty, evolving public health objectives, and the limited data currently available to create this guidance statement.

Interim Guidance on the Preparticipation Physical Examination for Athletes During the SARS-CoV-2 Pandemic.

The American Medical Society for Sports Medicine (AMSSM) convened a writing group to address the current evidence and knowledge gaps regarding preparticipation evaluation of athletes during the SARS-CoV-2 pandemic. The writing group held a series of meetings beginning in April 2020. The task force reviewed the available literature and used an iterative process and expert consensus to finalize this guidance statement that is intended to provide clinicians with a clinical framework to return athletes of all levels to training and competition during the pandemic. The statement is not intended to address treatment, infection control principles, or public health issues related to SARS-CoV-2. The AMSSM task force acknowledges the clinical uncertainty, evolving public health objectives, and the limited data currently available to create this guidance statement.

Common urgent musculoskeletal injuries in primary care.

The patient who presents with an acute painful synovitis of a single joint provides a significant diagnostic and therapeutic challenge to the primary care physician. An aggressive approach is required to differentiate a potential infectious arthritis, with its attendant morbidity and potential mortality, from other causes of monarthritis that are not immediately life-threatening. This article reviews the common causes of acute monarthritis in the adult, including the presentation, as well as guidelines for rapid and efficient diagnosis and management. Common causes include infections (bacterial/Lyme/mycobacterial/viral), microcrystalline disease (gout/pseudogout), and traumatic and reactive arthropathy. In addition, guidelines are suggested for the management approach to acute monarthritis when initial diagnostic testing is unrevealing of a specific diagnosis.