Vasovagal syncope (VVS) is the most frequent form of syncopal spells characterized by a reflex causing hypotension and often bradycardia, usually elicited by prolonged standing or exposure to emotional and physical stress. Despite the fact that VVS is not a life-threatening condition and patients are not at risk of mortality, the recurrence of syncopal spells negatively impacts patient's quality of life and exposes subjects of all ages to injuries and major trauma [1]. During the head-up tilt testing (HUT), prolonged standing may induce reflex hypotension or bradycardia and syncope.
