Clinical Report: Identification of a New MYBPC3 Gene Variant in HCM

Background

Hypertrophic cardiomyopathy is a significant hereditary cardiac condition characterized by left ventricular hypertrophy, often linked to genetic mutations in sarcomere proteins. Understanding the genetic basis of HCM is crucial for diagnosis, particularly in cases complicated by conditions such as apical ventricular aneurysm, which can increase the risk of serious cardiovascular events.

Data Highlights

No numerical data or trial data presented in the article.

Key Findings

• A novel MYBPC3 gene variant was identified in a patient with HCM.
• The patient also exhibited a concurrent novel KCNJ5 gene variant.
• HCM with apical ventricular aneurysm is rare, occurring in approximately 5% of HCM cases, as reported in the literature.
• Variants in MYBPC3 and KCNJ5 contribute to the genotype-phenotype relationship in HCM.
• Left ventricular hypertrophy is the hallmark feature of HCM, often linked to sarcomeric gene mutations.

Clinical Implications

The identification of novel genetic variants in patients with HCM can aid in understanding the disease's etiology and potential complications. Clinicians should consider genetic testing and counseling for patients with HCM, especially those presenting with atypical features such as apical aneurysms.

Conclusion

This case highlights the importance of genetic evaluation in hypertrophic cardiomyopathy and the potential implications of novel gene variants on patient management.

Related Resources & Content

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3. 2024 Guideline for the Management of Hypertrophic Cardiomyopathy - Professional Heart Daily | American Heart Association
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7. 2024 Guideline for the Management of Hypertrophic Cardiomyopathy - Professional Heart Daily | American Heart Association
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9. Size Matters. Prevalence and Clinical Implications of Left Ventricular Apical Aneurysms in Hypertrophic Cardiomyopathy: A Systematic Review and Meta‐Analysis - PMC