The main goal of this observational non-interventional study is the evaluation of prevalence of myocardial injury (heart injury) of the participants recovered from the novel coronavirus infectious disease (COVID-19). Participants with signs of myocarditis (pericarditis) and/or myocardial fibrosis, and with a threat of heart failure development and other outcomes are selected into this study. In this cohort the percentage of participants having myocardial injury based on the level of high-sensitivity troponin, echocardiography (decreased Left Ventricle Ejection Fraction, abnormalities of wall motion, Right Ventricle dysfunction, increased size of heart chambers above referential values, presence of pericardial effusion), cardiac MRI with contrast enhancement (presence of edema on T2-weighted images, presence of early and late gadolinium enhancement phenomenon, local motion abnormalities, increased size of heart chambers above referential values, presence of pericardial effusion). At 6 months of the dynamic follow-up, MRI with contrast enhancement will be repeated in the participants with established myocardial injury at inclusion to assess the percentage of the participants having ongoing myocardial injury.~The secondary goal of the study is evaluation of quality of life of the patients recovered from the novel coronavirus infectious disease (COVID-19) by the means of EQ-5D and/or DASI questionnaire using the descriptive system of 5 components of quality of life related to the wellbeing, and visual analogue scale.
In this observational study follow-up and dynamic observation will be conducted on the participants recovered from pneumonia caused by COVID-19. The main goal is an early diagnosis and detection of myocardial (heart) injury and quality of life in participants recovered from COVID-19 and follow-up in selected participants with present signs of myocarditis and/or myocardial fibrosis.