[Comparative study of hemolysis in patients after implantation of Soviet-made artificial heart valves and spherical and angle-opening disc closing devices].

Intravascular hemolytic parameters were studied in 40 patients after implantation of Soviet-made cardiac values with a ball versus angle-opening disc closing device. It was found that with the angle-opening disc closing cardiac valves "LIKS" and "EMIKS", hemolysis developed considerably more infrequently and was less marked than with ball valves. A significant difference was found between the activity of lactate dehydrogenase and the levels of haptoglobin in the compared groups of patients (p less than 0.05).