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Mesh term Isolated Noncompaction of the Ventricular Myocardium

Browse to parent terms:
Abnormalities, Multiple
Endocardial Fibroelastosis
Genetic Diseases, X-Linked
Heart Defects, Congenital


Rare congenital cardiomyopathies characterized by the lack of left ventricular myocardium compaction. The noncompaction results in numerous prominent trabeculations and a loose myocardial meshwork (spongy myocardium) in the LEFT VENTRICLE. Heterogeneous clinical features include diminished systolic function sometimes associated with left ventricular dilation, that presents either neonatally or progressively. Often, the RIGHT VENTRICLE is also affected. CONGESTIVE HEART FAILURE; PULMONARY EMBOLISM; and ventricular ARRHYTHMIA are commonly seen.

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