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Hypertrophic cardiomyopathy — RACP Paediatrics MCQ

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HardCardiologyHypertrophic cardiomyopathyRACP Paediatrics

A 15-year-old collapses briefly during a school sprint. He reports exertional chest tightness and his father died suddenly at 38 years. Examination reveals a harsh systolic murmur that increases on standing. What is the most appropriate investigation?

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Correct answer: A — ECG and transthoracic echocardiography with exercise restriction

Exertional syncope with family history of sudden death and dynamic murmur is concerning for hypertrophic cardiomyopathy. ECG and echocardiography are required, and sport restriction is prudent until specialist assessment. Vasovagal syncope is less likely when symptoms occur during exertion with red flags.

Reference: RACP Knowledge Guides; Australian cardiac inherited disease guidance