Syncope is a transient loss of consciousness and postural tone secondary to inadequate cerebral perfusion that spontaneously resolves without medical intervention. It is a relatively common clinical problem accounting for 1% to 1.5% of emergency department visits and around 6% of hospital admissions annually [1]. However, syncope remains a diagnostic challenge for clinicians, as the differential diagnosis is extensive (Table 1). Among the various classifications, neurally mediated, cardiac and unexplained etiologies appear to be the most common diagnoses. In a prospective study of 341 patients presenting with syncope, a cardiac cause of syncope was established in 23% of the patients, a neurally mediated cause in 58% and the cause of syncope remained unexplained in 18%