Abstract
We compared three methods for preparing leukoctye-poor platelet concentrates from random donors the centrifugation procedure 400 g/6 min, the filtration by Immungard TFIG 500 Y and the Cutter Leukotrap platelet pooling system. The most efficient method with regard to removal of leukocytes and platelet yield could be obtains by filtration through the Immugard filter. Platelets loss was less than 10% and the residual leukocyte count was lower than 10 .times. 106.