leukapheresis

(redirected from Harvesting leukapheresis)
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leukapheresis

 [loo″kah-fĕ-re´sis]
the selective removal of leukocytes from withdrawn blood, which is then retransfused into the donor.

leuk·a·phe·re·sis

(lūk'ă-fĕ-rē'sis),
A procedure, analogous to plasmapheresis, in which leukocytes are removed from the withdrawn blood and the remainder of the blood is retransfused into the donor.
[leuko- + G. aphairesis, a withdrawal]

leukapheresis

/leu·ka·phe·re·sis/ (loo″kah-fĕ-re´sis) the selective separation and removal of leukocytes from withdrawn blood, the remainder of the blood then being retransfused into the donor.

leukapheresis

[lo̅o̅′kəfərē′sis]
Etymology: Gk, leukos + aphairesis, removal
a donation process by which blood is withdrawn from a vein, white blood cells are selectively removed, and the remaining blood is reinfused into the donor. It is a treatment or supportive care measure in patients with leukocytopenia. Compare plasmapheresis, plateletpheresis. See also apheresis.

leukapheresis

Therapeutics The removal of blood to collect specific blood cells; plasma is returned to the body. See Apheresis Transfusion medicine The separation of leukocytes from whole blood with/without platelets with continuous or intermittent return of the RBCs and platelet- and leukocyte-poor plasma to a donor. See Cytapheresis, Hemapheresis, Plateletpheresis.
Leukapheresis types  
'Harvesting' leukapheresis WBCs are donated from healthy subjects to immunocompromised and leukopenic Pts, which may be effective in short-term therapy of acute infections; long-term, Pts become either immunized against the donor antigens or infected with pathogens; 1010 granulocytes are needed for adequate 'coverage' against infections; to maximize the harvest, the donor receives corticosteroids
Reduction leukapheresis WBCs that compromise normal circulation are removed to temporarily relieve Sx of hyperleukemia–> 100 x 109/L; in a typical procedure, ± 6 liters of whole blood are processed to remove 5-10 x 109 WBCs

leuk·a·phe·re·sis

(lū'kă-fĕr-ē'sis)
A procedure, analogous to plasmapheresis, in which leukocytes are removed from the withdrawn blood and the remainder of the blood is retransfused into the donor.
Synonym(s): leucapheresis.
[leuko- + G. aphairesis, a withdrawal]

leukapheresis

the selective removal of leukocytes from withdrawn blood, which are then retransfused into the donor. See also pheresis.