[Syncope in childhood: not always vasovagal in origin]

Two healthy children, a 10-year-old boy and a 13-year-old girl, both presented with a history of collapse. The boy had had multiple episodes of syncope over a 7-year period. He was diagnosed with reflex syncope on the basis of case history and diagnostic tests. The girl collapsed at school while resting. She was diagnosed with long QT syndrome and was treated with beta-blockers. After DNA-testing both her mother (who had, in retrospect, been wrongly diagnosed with epilepsy), and her brother were also diagnosed with long QT syndrome. Syncope is a common complaint in children and adolescents. In most cases the cause is a benign reflex syncope, but potentially life threatening syncope caused by rare cardiac conditions does occur and needs to be recognized in both the patient and their family members (who may be asymptomatic). Benign reflex syncope and cardiac syncope can be distinguished by performing a thorough medical and family history, physical examination and ECG.