These included atrial ectopic beats, bradycardia (defined as ≥4 consecutive beats at <45 bpm), VPBs, and complex VPB (bigeminy, trigeminy, couplet, Salvos, and ventricular tachycardia).

higher automaticity – ectopic beats; and re-entry – atrial tachyarrhythmia; and higher vulnerability to arrhythmia – heart rate and its variability. Most of these predictors are not ready ...