title: [Size of myocardial sarcomeres and their potential use in the histological diagnosis of acute myocardial infarct].
abstract: Measurements of sarcomeres in papillary muscles of the right and left ventricles of the heart revealed the lack or an insignificant per cent of relaxed sarcomeres in patients dying with some diseases including ischemic heart disease without acute myocardial infarction and in those dying with acute myocardial infarction outside the zone of ischemic damage. Relaxation of sarcomeres in large groups of muscle fibers detectable even without measurements allows the diagnosis of acute myocardial infarction at a very early stage. Conditions of fixation may affect the size of sarcomeres. This should be kept in mind in analysing their sizes.
mesh_terms: D000328:Adult; D000368:Aged; D001344:Autopsy; D003327:Coronary Disease / Q000473:pathology; D005260:Female; D006352:Heart Ventricles / Q000648:ultrastructure; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000175:diagnosis / Q000473:pathology*; D009206:Myocardium / Q000648:ultrastructure*; D009210:Myofibrils / Q000648:ultrastructure*; D011656:Pulmonary Emphysema / Q000473:pathology; D013997:Time Factors
vernacular_title: Razmernaia kharakteristika sarkomerov miokarda i vozmozhnost' ispol'zovaniia ee v gistologischeskoĭ diagnostike ostrogo infarkta miokarda.