The aim of this study is to determine the relationship between changes in resting electrocardiography (ECG) ventricular repolarization parameters, transthoracic impedance cardiography (ICG) parameters, and COVID-19, to assess the relationship between ECG changes after COVID-19 and heart rhythm disorders (arrhythmias), cardiovascular events (the onset and exacerbation of cardiovascular diseases), the persistence of changes two years after the illness, and to identify prognostic ventricular repolarization parameters in patients with and after COVID-19. It is expected that the results obtained during the study will help predict long-term cardiovascular complications in these patients, aiming to prevent them by providing recommendations for the long-term monitoring of individuals who have recovered from COVID-19. Additionally, the investigators hope to propose a new ECG ventricular repolarization parameter that could be used in the future for prognostic assessment in patients with other diseases as well.
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Frequency of arrhythmias (sinus, supraventricular, ventricular) in participants in 2 years after the disease, comparing COVID-19 patients with changes in ECG repolarization parameters and COVID-19 patients without these changes.
Timeframe: In two weeks (14 days) after the enrollment.
Frequency of ischaemic cardiovascular events in 2 years after the disease, comparing COVID-19 patients with changes in ECG repolarization parameters and COVID-19 patients without these changes.
Timeframe: In two weeks (14 days) after the enrollment.
ECG QTc (measured in milliseconds) during the COVID-19 and after 2 years in individuals who have recovered from COVID-19.
Timeframe: In two weeks (14 days) after the enrollment.
ECG Tpec (measured in milliseconds) during the COVID-19 and after 2 years in individuals who have recovered from COVID-19.
Timeframe: In two weeks (14 days) after the enrollment.
ECG Tpec/QTc during the COVID-19 and after 2 years in individuals who have recovered from COVID-19.
Timeframe: In two weeks (14 days) after the enrollment.
Changes in ECG QRS-T angle during the COVID-19 and after 2 years in individuals who have recovered from COVID-19.
Timeframe: In two weeks (14 days) after the enrollment.