ECG markers of malignant arrhythmias and in-hospital outcome of COVID-19 pneumonia

Abstract

Background: ECG abnormalities associated with COVID-19 pneumonia and adverse outcome are undefined and poorly described in prior studies. Objectives: To assess the predictive role of baseline ECG markers of increased risk of malignant arrhythmias and cardiac death for adverse in-hospital outcomes. Patients and methods: A retrospective study included 93 patients of newly diagnosed COVID-19 with features consistent with pneumonia who were admitted to the hospital from August 20 to September 20, 2020. The main outcomes were defined as receiving mechanical ventilation, in-hospital cardiac arrest, length of ICU stay, and degree of lung damage according to computed tomography (CT) score. Results: Increased QTc (QT corrected) interval, Tp-e (T from peak to end) interval, and transmural dispersion of repolarization (TDR) were independent predictors of prolonged ICU stay (P