[Manufacture and transfusion of leukocyte and thrombocyte concentrates with special reference to hematological problems].

Great quantities of granulocytes or platelets can be removed from a single donor by following methods: 1) Continuous flow cellseparation 2) Intermittent flow cellseparation 3) Filtration leukapheresis. Using one of the methods mentioned above 1.0 X 10(10)--5.0 X 10(10) granulocytes can be obtained during a four hours procedure. The yield of platelets is more than 5.0 X 10(11) cells. The procedure itself is well tolerated and no severe side effects were seen.