primary cardiomyopathy


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cardiomyopathy

 [kahr″de-o-mi-op´ah-the]
a general diagnostic term designating primary myocardial disease.
alcoholic cardiomyopathy a congestive cardiomyopathy resulting in cardiac enlargement and low cardiac output occurring in chronic alcoholics; the heart disease in beriberi (thiamine deficiency) is also associated with alcoholism.
congestive cardiomyopathy a syndrome characterized by cardiac enlargement, especially of the left ventricle, myocardial dysfunction, and congestive heart failure.
hypertrophic cardiomyopathy an increase in heart muscle weight, particularly of the left ventricle and often involving the interventricular septum; it may affect the flow of blood from an atrium into the ventricle or out from the ventricle. This type of cardiomyopathy is frequently associated with idiopathic hypertrophic subaortic stenosis. Called also asymmetrical septal hypertrophy.
hypertrophic obstructive cardiomyopathy a form of hypertrophic cardiomyopathy in which the location of the septal hypertrophy causes obstructive interference to left ventricular outflow. See also asymmetrical septal hypertrophy.
infiltrative cardiomyopathy myocardial disease resulting from deposition in the heart tissue of abnormal substances, as may occur in amyloidosis, hemochromatosis, and other disorders.
primary cardiomyopathy that in which the basic pathologic process involves the myocardium itself and not other cardiac structures; the condition is of unknown etiology and not part of a disease affecting other organs.
restrictive cardiomyopathy a form in which the ventricular walls are excessively rigid, impeding ventricular filling; it is marked by abnormal diastolic function but normal or nearly normal systolic function.
secondary cardiomyopathy any form that is due to another cardiovascular disorder or is a manifestation of a systemic disease such as sarcoidosis.

pri·mar·y car·di·o·my·op·a·thy

1. cardiomyopathy of unknown or obscure cause; Synonym(s): idiopathic cardiomyopathy
2. a disease that affects mainly the heart muscle, sparing other cardiac structures and usually resulting in fibrosis, hypertrophy, or both.

primary cardiomyopathy

Cardiomyopathy of unknown cause.
See also: cardiomyopathy
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