Classification and the criteria of hypertrophy of the heart based on data from the weighing of its separate parts
Lifshits, A.M.
Arkhiv Patologii 43(6): 24-30
1981
ISSN/ISBN: 0004-1955 PMID: 6455981 Document Number: 170678
Variation statistical analysis of summary data of separate weighing parts of the hearts of 605 apparently normal subjects was carried out. The ranges of normal variations, the borders of the transitional zone, and criteria of pathology by 15 parameters of the myocardium weight were determined by the method of sigmal deviations and centil method. Two variants of pathoanatomical classification of changes in the heart weight are proposed. The first variant is based on two criteria: myocardial-height and ventricle indices. It includes 6 forms of changes of the muscle weight: absolute and relative hypertrophy of the right and left ventricles, combined hypertrophy of both ventricles, and myocardial atrophy. The second variant is based on comparative evaluation of the absolute weight of the right and left ventricles, allowing to distinguish 10 forms of changes of the myocardium weight. Both variants allow an objective and significant classification of any case. Nomograms have been compiled to facilitate the use of the classifications.