Mild Left Ventricular Outflow in Pediatrics — Case | Pediatric Cardiology | SMLE Q#18435

SMLE Question #18435

Pediatrics Pediatric Cardiology

Objective: OBJ-283

Last updated: February 2026
A 2-day-old term newborn is found to have a systolic murmur. Echocardiography demonstrates interventricular septal hypertrophy with mild left ventricular outflow tract obstruction. Oxygen saturation is normal, and there are no dysmorphic features. Which maternal condition is the most likely cause of this newborn’s hypertrophic cardiomyopathy?

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