PMC8305668_01
12-Lead Electrocardiogram Performed in This Patient at Age 15 Years at the time of His Assessment by a Pediatric Cardiologist. Note the presence of left axis deviation (-60 ), prominent inferior Q waves, prominent mid-precordial voltages, and lateral precordial ST-segment depression and T-wave inversion. All these suggest underlying hypertrophic changes.
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An ECG performed at that time (Figure 1) demonstrated mid-precordial voltage hypertrophy, inferior Q waves, and lateral precordial repolarization abnormalities suggestive of hypertrophic cardiomyopathy (HCM).
A Simplified 3-Generation Pedigree Diagram for This Kindred. The arrow indicates the patient (proband).
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A family pedigree (Figure 2) showed evidence of 3 patrilineal generations of suspected or confirmed familial HCM in the patient's father and uncle and possibly the paternal grandfather.