Table 1. Definition of diagnostic 24H with respect to the type of indication.

AF = Atrial fibrillation; AVB = Atrio-ventricular block; AVN = Atrio-ventricular node; PAC = Premature atrial contraction; PVC = Premature ventricular contraction; VT = Ventricular tachycardia.

Indication	Diagnostic Finding
Cryptogenic stroke	AF or atrial flutter paroxysm (> 30 seconds)
Sinus/AVN conduction disturbance	> 3-second sinus pauses during wakefulness or documentation of advanced/complete AVB
Syncope/pre-syncope	Any ECG register obtained during a clinical relapse or ≥ 3 seconds of asystolic pause
Non-documented Palpitations /	Any ECG register obtained during a clinical relapse of the symptomatic palpitations
AF: Rhythm control	AF recurrence or atrial flutter documentation
Pacemaker dysfunction suspicion	Any sensing or pacing failure documented
Silent myocardial ischemia	ST-segment elevation or depression
Arrhythmogenic Cardiomyopathy	Documentation of sustained/non-sustained VT
Non-sustained arrhythmias	PAC/PVC count > 20% of the total beats or any sustained atrial/ventricular tachycardia