[Size of cardiomyocytes of the left portion of the heart in adults].

As demonstrates the investigation of cardiomyocytes of the left cardiac parts performed in 16 practically healthy mature persons died in accidents, the average area of the cells projections in the auricular atria makes 644 +/- 15 mcm2, and the portion of the multinuclear cells--2.27%. In the ventricular wall and in the papillar muscle these parameters are 831 +/- 16, 700 +/- 30 mcm2 and 11.

[Characteristics of isolated cardiomyocytes of the left regions of the human heart in hypertrophy].

Study of the DNA content in nuclei and of the number of polynuclear cardiomyocytes in the left auricula atrii and the left ventricle wall in the operation and biopsy material of patients with mitral valvular disease showed hypertrophy to be accompanied by polyploidization and division of the nuclei as well as division of cardiomyocytes themselves.