[Blood transfusion preparations with a low leukocyte count. I. Preparation of thrombocyte concentrates from buffy...

The preparation of platelet concentrates from "buffy coat" makes it possible to obtain a platelet concentrate with a low leucocyte and erythrocyte content. Concurrently prepared resuspended red cell concentrates "buffy coat" removed have moreover a low leucocyte and thrombocyte content. The mean number of thrombocytes in 1 TU of thrombocyte concentrate was 0.45 +/- 0.2 x 10(11), the leucocyte content was 0.03 +/- 0.03 x 10(9) and the red cell content was 0.8 +/- 0.7 x 10(9). The described method makes it possible to process in a rational manner blood samples into resuspended red cell concentrate a thrombocyte concentrate and plasma content. The administration of transfusion preparations with of preparation of platelet concentrates in common practice.