Abstract
Coronavirus disease-2019 (COVID-19) has cardiac manifestations. Data about electrocardiogram (ECG) changes after COVID-19 recovery is limited in hemodialysis patients. We aimed to investigate the changes in ventricular repolarization parameters after COVID-19 recovery in hemodialysis patients. Fifty-five hemodialysis patients who recovered from COVID-19 infection were included. QT interval, Tp-e interval, corrected QT (QTc), QTc dispersion, and Tp-e dispersion values were determined on the patients' ECGs, taken before COVID-19 and at least 1 month after recovery. The patients' data before COVID-19 infection and after recovery were compared. It was found that longest QTc (QTcmax) and QTc dispersion values after recovery were prolonged compared with pre-infection period (427 ± 28 ms vs. 455 ± 26 ms, p = 0.000 and 39 ± 16 ms vs. 65 ± 20 ms, p = 0.000). In our hemodialysis patients, ventricular repolarization parameters increased after COVİD-19 recovery. In hemodialysis patients, already predisposed to arrhythmic deaths, arrhythmia risk after COVİD-19 recovery may become more pronounced.
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