Currently, coronavirus infection (COVID-19) caused by the SARS-CoV-2 virus poses a serious threat to the health of the world's population. The extent to which the virus affects various body systems, including the cardiovascular system, is the subject of active research. However, over the past few years, there has been an increase in the number of children suffering from cardiovascular diseases. The purpose of this study is to study the frequency of cardiovascular pathology and the consequences of its defeat by the SARS-CoV-2 virus in children in the Republic of North Ossetia-Alania. In this article, we consider the frequency of cardiovascular pathology in children of the Republic of North Ossetia-Alania and also analyze the consequences of the defeat of this system by the SARS-CoV-2 virus. Our study confirms that children in the Republic of North Ossetia-Alania have a significant risk of developing cardiovascular complications when infected with the SARS-CoV-2 virus. This highlights the need to take measures to protect children from infection, as well as regular monitoring and timely treatment of cardiovascular complications to minimize adverse effects on their health and future well-being.