Virtual hospitalization for antiarrhythmic drug loading. Scheduled telemedicine visits and remote electrocardiographic monitoring allowed clinicians to virtually counsel participants at home through a five-dose antiarrhythmic drug load to prevent recurrence of symptomatic arrhythmia. ECG, electrocardiogram; ICD, implantable cardioverter-defibrillator; MCOT, mobile cardiac outpatient telemetry; QTc, corrected QT interval.