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Vasovagal syncope — RACP Paediatrics MCQ

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EasyCardiologyVasovagal syncopeRACP Paediatrics

A 14-year-old girl collapses during school assembly. She felt hot and dizzy before falling. There was brief limb jerking. She recovered rapidly and feels well now. She reports previous similar episodes in hot environments. ECG is normal. What is the most likely diagnosis?

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Correct answer: D — Vasovagal syncope

Vasovagal syncope is the most common cause of syncope in children and adolescents. Typical prodromal symptoms (feeling hot, dizzy, nauseous), a clear trigger (prolonged standing), brief convulsive movements (convulsive syncope), and rapid recovery with a normal ECG support this diagnosis.

Reference: RCH Melbourne – 2023 – Syncope CPG; RACP Paediatric Curriculum – Cardiology