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Updated: May 31, 2026

Investigating the Pathogenesis of MYH7 Mutation Gly823Glu in Familial Hypertrophic Cardiomyopathy using a Mouse Model
Published on: August 8, 2022
Hypertrophic cardiomyopathy with left ventricular apical aneurysm in brothers
Chetan Shenoy1, Martin S Maron
1Hypertrophic Cardiomyopathy Center, Division of Cardiology, Tufts Medical Center, Boston, Massachusetts, USA.
Insights
Two brothers presented with similar hypertrophic cardiomyopathy phenotypes, including left ventricular apical aneurysm and thrombus. This suggests a genetic link for this rare, high-risk condition.
Area of Science:
- Cardiology
- Genetics
- Medical Imaging
Background:
- Hypertrophic cardiomyopathy (HCM) is a complex cardiac condition.
- Left ventricular apical aneurysm and thrombus formation are rare but serious complications.
- Understanding genetic predispositions is crucial for early diagnosis and management.
Observation:
- Two brothers, born 8 years apart, exhibited similar cardiac phenotypes.
- Both presented with hypertrophic cardiomyopathy, left ventricular apical aneurysm, and thrombus.
- This unique phenotype indicates a potential inherited component.
Findings:
- The study highlights a genetic predisposition for a specific, high-risk HCM phenotype.
- Echocardiography revealed left ventricular apical aneurysms and thrombi in both affected siblings.
- Nonstandard imaging views were essential for accurate patient assessment.
Implications:
- This case underscores the importance of genetic counseling and screening in families with HCM.
- Prophylactic anticoagulation strategies require careful consideration in these high-risk patients.
- Advanced echocardiographic techniques are vital for diagnosing and monitoring rare cardiac conditions.
Abstract:
The investigators report similar phenotypes of hypertrophic cardiomyopathy with left ventricular apical aneurysm and thrombus in 2 brothers aged 8 years apart. This report highlights the genetic predisposition for this unique, high-risk phenotype, the issue of prophylactic anticoagulation, and the importance of nonstandard echocardiographic imaging views in the assessment of these patients.
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