Abstract

After the first cases were reported in Wuhan in December 2019, the World Health Organization declared Severe acute respiratory syndrome-Coronavirus-2 Coronavirus disease-2019 (COVID-19) a pandemic on March 11, 2020. Initially, the infection, which caused very high mortality and morbidity, was considered a significant health issue, especially in adults with comorbidities, and it was thought that children were affected to a lesser extent compared to adults. However, with the cases of multisystem inflammatory syndrome (MIS-C), deaths began to be observed in children, and it was noted that the heart was one of the most frequently affected organs. Cardiac involvement can be seen at every stage of COVID-19 infection. Cardiac effects can occur in the acute and chronic phases of COVID-19, as a complication of COVID-19, in the acute and chronic phases of MIS-C, and also due to COVID-19 vaccines. The cardiac involvement in the acute phase of MIS-C is among the most alarming. With early diagnosis and correct treatment, recovery usually occurs without sequelae. This section will briefly review the cardiac effects of COVID-19.