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the selective removal of leukocytes from withdrawn blood, which is then retransfused into the donor.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A procedure, analogous to plasmapheresis, in which leukocytes are removed from the withdrawn blood and the remainder of the blood is retransfused into the donor.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/leu·ka·phe·re·sis/ (loo″kah-fĕ-re´sis) the selective separation and removal of leukocytes from withdrawn blood, the remainder of the blood then being retransfused into the donor.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a donation process by which blood is withdrawn from a vein, white blood cells are selectively removed, and the remaining blood is reinfused into the donor.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A procedure, analogous to plasmapheresis, in which leukocytes are removed from the withdrawn blood and the remainder of the blood is retransfused into the donor.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the selective removal of leukocytes from withdrawn blood, which are then retransfused into the donor.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.
References in periodicals archive ?
Surprisingly, there were no differences between RCL and ficoll centrifugation for leukapheresis samples or for tumor cell detection by CK19 RTPCR.
Separate contracts must be negotiated with the radiology department and with the leukapheresis department, in addition to the Clinical Trial Agreement described above.
In the ADAPT trial, a small tumor sample obtained from routine nephrectomy followed by a single, standard leukapheresis collection are obtained from each patient through simple procedures which support streamlined enrollment.
Mobilized HSCs can be collected by leukapheresis, a process that is generally preferred to invasive bone marrow harvesting.
Fecal DNA Testing for Colorectal Cancer Screening and Monitoring; Fecal Occult Blood test, Screening; Fecal Incontinence - Transanal Radiofrequency Treatment; Fiberoptic Analysis of Colonrectal Polyps; Flexible sigmoidoscopy; Gastroesophageal reflux disease (GERD); Gastrophotography; Inflammatory bowel markers; Intestinal Rehabilitation Programs; Implanted Capsule pH Monitoring for GERD; Leukapheresis for inflammatory bowel disease; Motility disorders; Parotid tumors, malignant;
A patient's T cells are collected through a specialized blood draw called leukapheresis and then transferred to the Novartis manufacturing facility in Morris Plains, New Jersey.
Apheresis Market by Application (Plasmapheresis, Plateletpheresis, Erythrocytapheresis, Leukapheresis, and Photopheresis), Procedure (Therapeutic Apheresis, Donor Apheresis/Apheresis Blood Donation), Technology & by Product - Global Forecast to 2020
She was admitted with disseminated intravascular coagulation and bilateral pulmonary embolisms and the plan was to start hydroxyurea and stabilize her for leukapheresis.
Diagnostic leukapheresis enables reliable detection of circulating tumor cells of nonmetastatic cancer patients.
com)-- AIDS Research Alliance (ARA) is pleased to announce an expansion of its services to include the ability to conduct leukapheresis, and to provide leukopaks to research and pharmaceutical institutions.
Specialist treatment called Leukapheresis was started straight away.
The "Vanishing Counting Bead" Phenomenon: Effect on Absolute CD34+ Cell Counting in PhosphateBuffered Saline-Diluted Leukapheresis Samples.