Fig. 1.

The schema illustrates the various arrhythmias encountered in patients with COVID-19 infection as a consequence of the virus infection affecting the heart and lung and/or producing systemic inflammation, the adverse (proarrhythmic) effects of COVID therapies and the drug-drug interactions that may occur (see text for discussion). AF = atrial fibrillation; AVB = atrioventricular block; LQT = long QT interval; PEA = pulseless electrical activity; SB = sinus bradycardia; SCD = sudden cardiac death; SNS = sympathetic nervous system; STach = sinus tachycardia; TdP = torsade des pointes; VAs = ventricular arrhythmias; VF = ventricular fibrillation; VT = ventricular tachycardia.