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Published on: June 11, 2019
[Triglyceride deposit cardiomyovasculopathy]
1Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine.
Insights
Triglyceride deposit cardiomyovasculopathy (TGCV) is a severe heart condition caused by a genetic mutation in adipose triglyceride lipase (ATGL). This disorder leads to massive triglyceride accumulation in the heart and blood vessels.
Area of Science:
- Cardiology
- Genetics
- Metabolic Disorders
Background:
- Cholesterol is a known risk factor for heart disease, but the role of triglycerides is less understood.
- Congestive heart failure can necessitate cardiac transplantation.
- Genetic mutations can lead to severe metabolic dysfunction.
Observation:
- A patient with severe congestive heart failure exhibited massive triglyceride accumulation in coronary atherosclerotic lesions and myocardium.
- This condition was termed triglyceride deposit cardiomyovasculopathy (TGCV).
Findings:
- The patient was homozygous for a genetic mutation in adipose triglyceride lipase (ATGL).
- ATGL is crucial for intracellular triglyceride hydrolysis.
- ATGL deficiency results in severe triglyceride accumulation, leading to TGCV.
Implications:
- Understanding ATGL deficiency provides insights into the role of triglycerides in cardiovascular health.
- This research may inform new therapeutic strategies for triglyceride-related cardiomyopathies.
- Genetic screening for ATGL mutations could identify individuals at risk for TGCV.
Abstract:
Cholesterol is a vital causal factor and focus of research into heart diseases, however the involvement of triglycerides remains unclear. We recently reported a patient suffering from severe congestive heart failure and needing cardiac transplantation. Massive accumulation of triglycerides was noted in coronary atherosclerotic lesions as well as in the myocardium. We named this phenotype"triglyceride deposit cardiomyovasculopathy (TGCV)". The patient was identified as homozygous for a genetic mutation in the adipose triglyceride lipase (ATGL), an essential molecule for hydrolysis of intracellular triglycerides. In this paper, we describe clinical characteristics of ATGL deficiency and discuss what we can learn from this disorder.
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