[Clinical usefulness of blood platelets cryopreserved in liquid nitrogen].

The hemostatic effectiveness of platelet concentrates cryopreserved in a vapor phase of liquid nitrogen were evaluated after transfusion of 14 concentrates to 6 patients. Transfusion of AB0 and Rh-compatible platelet concentrates elevated the number of circulated platelets in donors by about 24 G/L. The mean corrected count increment (C.

Donors leukapheresis on Fenwal CS-3000.

Leukocytes were collected from 24 donors using Fenwal CS-3000 cell separator. Two different sedimentation agents in citric acid were used. After collection donors hematologic data were evaluated.

The influence of CS-3000 plateletapheresis on blood donors and on platelet concentrates.

Platelet concentrates were prepared from blood of donors by means of Fenwal CS-3000, or by double centrifugation method. Platelets from CS-3000 were cryopreserved with 5% DMSO for 2-4 weeks. After thawing and washing platelets were stored in room temperature for 6 hours.