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Hypertrophic cardiomyopathy — RCPSC IM MCQ

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HardCardiologyHypertrophic cardiomyopathyRCPSC IM

A 31-year-old man collapses during recreational hockey. ECG shows left ventricular hypertrophy with deep T-wave inversions. Echocardiography shows asymmetric septal hypertrophy of 24 mm, systolic anterior motion of the mitral valve, and a dynamic outflow gradient. His father died suddenly at 42 years. What is the most likely diagnosis?

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Correct answer: C — Hypertrophic cardiomyopathy

Marked asymmetric septal hypertrophy, dynamic obstruction, systolic anterior motion, exertional syncope, and family history of sudden death support hypertrophic cardiomyopathy.

Reference: CCS inherited cardiomyopathy practice guidance