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Published on: August 8, 2022
Myopathy, apical hypertrophic cardiomyopathy and left ventricular noncompaction within the same family
Claudia Stöllberger1, Ali Hamedanchi, Josef Finsterer
12nd Medical dept., Krankenanstalt Rudolfstiftung, Mashhad, Iran. claudia.stoellberger@chello.at
Insights
Familial left ventricular hypertrabeculation/noncompaction (LVHT) presents a spectrum, sometimes alongside hypertrophic cardiomyopathy and neuromuscular disorders. Early detection of LVHT is crucial for managing associated cardiac and neurological conditions.
Area of Science:
- Cardiology
- Genetics
- Neurology
Background:
- Familial occurrence of left ventricular hypertrabeculation/noncompaction (LVHT) exhibits a wide spectrum.
- Detecting asymptomatic LVHT poses challenges due to diagnostic criteria and prognosis concerns.
Observation:
- Three brothers presented with varying cardiac conditions: heart failure with LVHT, apical hypertrophic cardiomyopathy, and asymptomatic LVHT.
- Two brothers had childhood muscle weakness, and the third showed lower limb weakness, suggesting a shared neuromuscular disorder.
Findings:
- Apical hypertrophic cardiomyopathy can co-occur with LVHT within families, potentially representing a milder form of LVHT.
- Familial LVHT is associated with neuromuscular disorders, indicating cardiac manifestations of underlying neurological conditions.
Implications:
- This familial clustering highlights the genetic and syndromic nature of LVHT.
- Recognizing the link between LVHT, hypertrophic cardiomyopathy, and neuromuscular disorders is vital for comprehensive patient management and diagnosis.
Objective:
Familial occurrence of left ventricular hypertrabeculation/noncompaction (LVHT) comprises a wide spectrum. Detection of asymptomatic LVHT is a challenge, since the assumed poor prognosis of LVHT may induce anxiety and over-reaction. The different echocardiographic diagnostic criteria render the situation still more difficult.
Methods And Results:
Among 3 brothers, the 24-year-old index patient suffered from heart failure. He fulfilled both echocardiographic criteria for LVHT. The 35-year-old brother suffered from palpitations and showed echocardiographically an apical-type hypertrophic cardiomyopathy. The 17-year-old asymptomatic brother showed LVHT fulfilling only one echocardiographic criterion. Two brothers suffered from muscle weakness since childhood, the third was investigated neurologically and showed weakness of the lower limbs. Most likely, the 3 brothers suffered from the same neuromuscular disorder.
Conclusion:
Apical-type hypertrophic cardiomyopathy may occur together with LVHT in the same family and may represent an abortive form of LVHT. Neuromuscular disorders are associated with familial LVHT, thus representing cardiac involvement of the underlying neurological disease.
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