A multicentre evaluation of a new filtration protocol for leucocyte depletion of high-haematocrit red blood cells collected by an automated blood collection system.

Background And Objectives: A multicentre trial was set up to evaluate the performance of a new leucodepletion protocol.

Materials And Methods: Filtration at high haematocrit was started during collection of red blood cell (RBC) products by apheresis with Trima. SAG-M was added after filtration through the filter.