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Investigating the Pathogenesis of MYH7 Mutation Gly823Glu in Familial Hypertrophic Cardiomyopathy using a Mouse Model
Published on: August 8, 2022
[Early diagnosis in hypertrophic cardiomyopathy--case report]
Ioana Dana Alexa1, Laurette Graziella Cozma, Gina Constantinescu
1Universitatea de Medicină şi Farmacie Gr.T. Popa Iaşi, Facultatea de Medicină, Clinica a IV-a Medicală-Nefrologie.
Insights
Hypertrophic cardiomyopathy (HCM) causes disproportionate heart muscle growth. Early echocardiography in patients with unusual heart symptoms is vital for identifying HCM and preventing sudden cardiac death, especially in young individuals.
Area of Science:
- Cardiology
- Genetics
- Internal Medicine
Background:
- Hypertrophic cardiomyopathy (HCM) is characterized by disproportionate heart muscle enlargement with minimal chamber dilation.
- The clinical presentation of HCM is highly variable, ranging from asymptomatic cases to sudden cardiac death.
Observation:
- Sudden death, often during physical exertion, can be the first manifestation of HCM, particularly in children and young adults.
- Two cases of HCM illustrate diverse clinical and electrocardiogram (ECG) variations.
Findings:
- HCM diagnosis requires recognizing specific patterns of cardiac hypertrophy.
- Variability in clinical symptoms and ECG findings complicates early diagnosis.
Implications:
- Routine echocardiography is crucial for identifying HCM in patients presenting with atypical cardiac symptoms.
- Early detection of HCM can mitigate the risk of sudden cardiac death.
- Understanding HCM's variable presentation aids in timely diagnosis and management.
Abstract:
Disproportionate heart muscle enlargement compared with little or no chamber enlargement are characteristic for hypertrophic cardiomyopathy (HCM). The clinical course of HCM is highly variable. Many patients are asymptomatic or mildly symptomatic and may be relatives of patients with known disease. Unfortunately, the first clinical manifestation of the disease may be sudden death, frequently occurring in children and young adults, often during or after physical exertion. We present 2 cases of HCM who emphasize the variability of clinical and ECG modifications and underline the importance of routine echocardiography in patients with atypical cardiac symptoms in order to identify the disease and prevent high risk for sudden death.
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