Evaluating the child with syncope.

Syncope is a multifactorial disorder; however, most pediatric syncopal episodes result from vasodepressor syndrome or the simple faint. A very detailed history and physical examination should indicate the etiology in the majority of cases. Extensive diagnostic studies are rarely necessary. Tilt table testing is a reliable way of identifying individuals predisposed to vasodepressor syncope, and may provide a means of assessing the efficacy of therapeutic interventions in those who require treatment. Treatment for syncope from etiologies other than vasodepressor syndrome is directed at the underlying cause.