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the selective removal of leukocytes from withdrawn blood, which is then retransfused into the donor.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

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A procedure, analogous to plasmapheresis, in which leukocytes are removed from the withdrawn blood and the remainder of the blood is retransfused into the donor.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]
Farlex Partner Medical Dictionary © Farlex 2012

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
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

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A procedure, analogous to plasmapheresis, in which leukocytes are removed from the withdrawn blood and the remainder of the blood is retransfused into the donor.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]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012