[Ultrasonic hemolysis of normal and pathological erythrocytes]

The kinetic method of the investigation of erythrocyte haemolysis normal and at different tumour pathologies by ultrasound was developed. The quantitative parameters of the mechanical resistance of erythrocytes were studied (time and velocity of haemolysis, time of half-destruction, the distribution of erythrocytes by their haemolytic resistance). The studied parameters differ between the normal state and the tumour in organism. The analysis of the differential distribution of erythrocytes by their resistance to ultrasonic haemolysis revealed the occurrence in the patient's blood of erythrocytes with increased resistance ("young" erythrocytes). The mechanical resistance of the erythrocytes at pathology was shown to increase as compared with the normal state. The differences in the effective constants of ultrasonic haemolysis velocity were estimated for the normal state and for different tumours. They are caused by the changes in visco-elastic properties of red blood cells.