• Maria Boylan, Jonathan Roddy, Nicolas Lim, Ross Morgan, Brendan McAdam, and Fiona Kiernan.
• Beaumont Hospital, Beaumont Road, Dublin, Ireland. mariabboylan@yahoo.co.uk.
• Ir J Med Sci. 2022 Jun 1; 191 (3): 1445-1449.

AbstractMyocarditis is a concerning potential consequence of COVID-19 infection, attributed to ventricular dysfunction, cardiac fibrosis, ventricular arrhythmias, cardiogenic shock, and sudden cardiac death. Recently, the Israeli Health Ministry announced that a small number of cases of myocarditis may be linked to second dose of Pfizer's BioNTech-partnered COVID-19 vaccine. The long-term impact of COVID-19 myocarditis and coronary microthrombosis which has also been described and the best therapies for these complications remain unknown. Indeed, monomorphic ventricular tachycardia and regular ventricular arrhythmias have previously been found to be more common in those recovered from myocarditis than in acute myocarditis itself. Follow-up assessment of cardiac function has been suggested for this cohort to detect and possibly prevent further cardiac events in the rehabilitation phase. Functional capacity has been shown to be a better determinant of long-term morbidity than diagnostic testing alone, but integrated approach is likely the way forward in clinical follow-up. Assessment of residual complications in the post-COVID-19 recovery phase may identify the population burden of long-term cardiac disease as a direct consequence of COVID-19.© 2021. Royal Academy of Medicine in Ireland.

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