| endocardial c.’s |
elevations of embryonic connective tissue covered by endothelium bulging into the atrioventricular canal of the embryonic heart, which later fuse with the free edge of the septum primum to separate the right and left atria.
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| endocardial cushion d.’s |
a spectrum of septal defects resulting from imperfect fusion of the endocardial cushions and ranging from persistent ostium primum to persistent complete common atrioventricular canal; see atrial septal d's and atrioventricularis communis.
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| endocardial f. |
diffuse patchy thickening of the mural endocardium, particularly in the left ventricle, due to proliferation of collagenous and elastic tissue. It usually occurs in infants without other cardiac defects, but may occur in adolescents and adults, usually in association with congenital cardiac malformations. Thickening and incompetence of mitral and aortic valves is often associated. It is usually classified as dilated if the left ventricle is enlarged and hypertrophied or contracted if the left ventricle is of normal or reduced size.
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| endocardial p. |
pressure of blood within the heart.
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| endocardial p.’s |
sclerotic thickenings of the mural endocardium, occurring most often on the left ventricular septum below an insufficient aortic valve; called also regurgitant p's and birds' nests.
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