RESUMEN
COVID-19 vaccine-induced myocarditis is a rare adverse event in the current pandemic. The following is a case series of 10 individuals with COVID-19 vaccine-related myocarditis confirmed by cardiac magnetic resonance imaging. In this cohort of predominantly male patients, with a mean age of 23 years, chest discomfort and positive cardiac biomarkers occurred at a median of 3 days after the second COVID-19 vaccine dose. Although systolic function was relatively preserved on noninvasive cardiac imaging, evidence was seen of delayed enhancement on cardiac magnetic resonance imaging, confirming myocarditis. As COVID-19 vaccine-induced myocarditis has a relatively benign clinical course, the benefits of vaccination still, by far, outweigh this small risk.
La myocardite induite par le vaccin contre la COVID-19 est un événement indésirable rare de la pandémie actuelle. Voici une série de cas de 10 individus atteints d'une myocardite liée au vaccin de la COVID-19 confirmée par l'imagerie par résonance magnétique cardiaque (RMC). Dans cette cohorte principalement composée d'hommes, dont l'âge moyen était de 23 ans, qui ont manifesté un inconfort à la poitrine et montré des biomarqueurs cardiaques positifs à une médiane de trois jours après la deuxième dose du vaccin contre la COVID-19. Bien que l'imagerie cardiaque non invasive a montré une fonction systolique relativement préservée, la RMC mettait en évidence un rehaussement tardif qui confirmait la myocardite. Puisque la myocardite induite par le vaccin contre la COVID-19 a une évolution clinique relativement bénigne, les avantages de la vaccination restent de loin supérieurs à ce risque minime.
RESUMEN
It is now widely recognized that COVID-19 illness can be associated with significant intermediate and potentially longer-term physical limitations. The term, "long COVID-19" is used to define any patient with persistent symptoms after acute COVID-19 infection (ie, after 4 weeks). It is postulated that cardiac injury might be linked to symptoms that persist after resolution of acute infection, as part of this syndrome. The Canadian Cardiovascular Society Rapid Response Team has generated this document to provide guidance to health care providers on the optimal management of patients with suspected cardiac complications of long COVID-19.