title: [Morphologic changes of the coronary vessels in patients with congenital heart defects].
abstract: Results of the study of the structural changes in the coronary vessels at various levels of ramification in patients with heart defects are presented and their role in the heart compensation and decompensation is shown. 127 hearts with congenital defects and 45 control children's hearts were studied. It is established, by means of anatomical, histologic and morphometric methods, that the heart defects are followed by the hypertrophy of the heart regions involved functionally, this being combined with an adaptive and pathologic rearrangement of coronary arteries and veins. The former is expressed in the vessels hyperplasia, thickening of their wall, and in the appearance in the vascular wall of oblique and longitudinal smooth myocytes (this is of importance for the maintenance of the heart compensation state). The latter is manifested in sclerosis, sometimes also thrombosis of the coronary arteries and veins this creating the basis for the heart failure.
authors.forename: S V
authors.initials: SV
authors.lastname: Shormanov
mesh_terms: D006332:Cardiomegaly / Q000473:pathology; D002675:Child, Preschool; D003331:Coronary Vessels / Q000473:pathology*; D006330:Heart Defects, Congenital / Q000473:pathology*; D006801:Humans; D006965:Hyperplasia; D007223:Infant; D007231:Infant, Newborn; D009206:Myocardium / Q000473:pathology; D012598:Sclerosis
vernacular_title: Morfologicheskie izmeneniia venechnykh sosudov pri vrozhdennykh porokakh serdtsa.