[Morphometric study of the normal heart of newborn infant]

The morphometrical investigation of 40 heart preparations obtained from newborns died from various causes not connected with cardiac diseases has been performed by means of the technique elaborated by the authors in order to define whether there are any constant interrelations between the structures studied. Correlations of the transversal section area of the afferent and deferent parts of the cardiac chambers, semi-lunar and atrioventricular valves have been estimated, as well as correlations of linear size of the right and left auricles, right and left ventricles, cross correlations of the right and left cardiac chambers and some other data. The data obtained demonstrate a constant correlation of various parts in the normal newborn heart. To use the data could be helpful in choosing certain surgical interventions in patients suffering from congenital heart diseases.