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Published on: August 8, 2022
[Non compaction cardiomyopathy: a series of 15 cases]
Andrés Enríquez R1, Ricardo Baeza V, Luigi Gabrielli N
1Departamento de Enfermedades Cardiovasculares, Pontificia Universidad Católica de Chile, Chile.
Insights
Non-compaction cardiomyopathy, a rare heart muscle disorder, often presents late with heart failure and arrhythmias. Early diagnosis is crucial for managing this condition, which involves impaired heart muscle development.
Area of Science:
- Cardiology
- Genetics
- Pathology
Context:
- Non-compaction cardiomyopathy (NCCM) is a rare congenital heart defect.
- It results from arrested myocardial compaction during embryogenesis.
- Characterized by a spongy, non-compacted endocardial layer with hypertrabeculation.
Purpose:
- To describe the clinical and echocardiographic features of 15 adult NCCM patients.
- To analyze presentation, cardiac function, and outcomes.
Summary:
- 15 adult NCCM patients (mean age 52) presented with heart failure (53%), syncope (20%), arrhythmias (13%), or stroke (7%).
- Significant left ventricular dilation (EDD 66±11 mm) and dysfunction (EF 27±10%) were observed.
- Pulmonary hypertension (40%) and embolic events (13%) were common. ICD implantation occurred in 47%.
Impact:
- NCCM is linked to substantial cardiovascular morbidity.
- Diagnosis often occurs at advanced stages with significant ventricular dysfunction.
- This highlights the need for improved diagnostic strategies and management protocols.
Background:
Non compaction cardiomyopathy is a rare disorder caused by the arrest of myocardial compaction during embryogenesis, leading to a non compacted endocardial layer with marked hypertrabeculation and deep recesses.
Aim:
To report the clinical and echocardiographic characteristics of a series of 15 adult patients with non-compaction cardiomyopathy.
Patients And Methods:
We included a total of 15 patients aged 52 ± 17 years (40% males) diagnosed at our echocardiography laboratory between January 2001 and July 2010.
Results:
The form of presentation was heart failure in 53% of subjects, syncope in 20%o, ventricular arrhythmias in 13%o and stroke in 7%>. Left ventricular end-diastolic diameter was 66 ± 11 mm and estimated ejection fraction was 27 ± 10%>. Apical and/or mid-ventricular segments of the left ventricle were involved in all the cases. Pulmonary hypertension was present in 40%o. The average follow-up was 19 months and no patient died during this period. Sixty seven percent of the patients had manifestations of heart failure, 27%o presented sustained ventricular arrhythmias and 20%> had atrial fibrillation or flutter, whereas 13%o had cerebral embolic events. An automated internal cardioverter defibrillator was implanted in 47%o of patients.
Conclusions:
Non-compaction cardiomyopathy is associated with high cardiovascular morbidity. The diagnosis is made in advanced stages of the disease, with significant dilation and ventricular dysfunction.
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