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s031008a - Acute Myeloid Leukemia (AML) - Leukapheresis Leukapheresis reduces early mortality in patients with acute myeloid leukemia with high white cell counts but does not improve long- term survival. This occurred in 6/21 (29%) for gravity leukapheresis and 9/27 (33%) for filtration leukapheresis. Thus, gravity leukapheresis appears to be as efficacious as filtration leukapheresis for treating granulocytopenic febrile patients, with the added advantages of availability to any blood bank without new equipment, of having platelets as by-products, and of not requiring donor heparinization. www.emory.edu /WHSCL/grady/amreport/litsrch03/s031008a.html   (1179 words)

Interventional procedures consultation document - leukapheresis for inflammatory bowel disease Current evidence suggests that there are no major safety concerns for the use of leukapheresis for inflammatory bowel disease, and that it may be beneficial in carefully selected patients with ulcerative colitis. Leukapheresis using centrifugation removes a proportion of neutrophils and lymphocytes. In the same trial, adverse events were described as moderate or severe in 12% (5/42) of patients treated with leukapheresis: 2 patients had a headache, 1 patient had toxic shock, 1 patient had chest pain and 1 patient had anaemia. www.nice.org.uk /page.aspx?o=ip250consultation   (1135 words)

Therapeutic Hemapheresis Leukapheresis removes white blood cells that are involved in fighting infections. After leukapheresis the benign white cells and malignant cells are treated with photosensitizing medication that makes the malignant cells easily destroyed by ultraviolet irradiation. Plamapheresis, erythrocytapheresis, plateletpheresis and leukapheresis continue to serve as acceptable forms of treatment for certain diseases and supportive or adjunctive therapies for others. www.sarasotafreeads.com /article25.html   (933 words)

CLL - FAQ Leukapheresis is the removal of white blood cells (leukocytes) from the peripheral blood. Leukapheresis can reduce the circulating white count rapidly, efficiently, and safely, in CLL patients. In a study of 59 CLL patients treated with therapeutic leukapheresis, reduction in elevated lymphocyte counts (lymphocytosis), swollen lymph nodes (lymphadenopathy), and swelling of the liver and spleen (hepatosplenomegaly) was noted in 50-60% of the patients studied. leukemia.acor.org /cll/cllfaq/answers/41.html   (194 words)

Journal of Translational Medicine | Full text | A phase I study of dexosome immunotherapy in patients with advanced ... The main exclusion criteria were: prior therapy within 4 weeks of the leukapheresis, CNS disease, history of autoimmune disease, concurrent use of systemic steroids, presence of HIV infection or acute or chronic viral hepatitis B or C. Pregnant or lactating women were also excluded. The quantity of DEX prepared from a single leukapheresis was measured by ELISA as previously described [23]. Leukapheresis products could be shipped to a central processing facility with good cell viability after transport in a majority of cases, in contrast to other autologous therapies involving tissues where logistics of tissue harvest and processing are complex. www.translational-medicine.com /content/3/1/9   (4686 words)

Leukapheresis - Wikipedia, the free encyclopedia Leukapheresis is a laboratory procedure in which white blood cells are separated from a sample of blood. This may be done to decrease a very high white blood cell count in individuals with cancer (leukemia) or to remove white blood cells for transfusion. Modulation of monocyte activation in patients with rheumatoid arthritis by leukapheresis therapy. en.wikipedia.org /wiki/Leukapheresis   (232 words)

Other Treatments for Leukemia Leukapheresis is a therapy to remove leukocytes from the blood in patients with acute leukemia who have high numbers of immature cells (blasts) in the blood. Leukapheresis may also be done at the start of therapy, while waiting for the chemotherapy to begin to decrease the number of malignant cells. Leukapheresis helps manage leukostasis syndrome, a medical emergency that occurs when too many leukocytes prevent blood flow to the small vessels of a vital organ or the brain. healthlibrary.epnet.com /GetContent.aspx?token=9cc295f8-f3b0-4b15-99b3-beb1e6cbe599&chunkiid=32689   (1432 words)

CLL - FAQ   (Site not responding. Last check: 2007-10-24) Leukapheresis is the removal of white blood cells (leukocytes) from the peripheral blood. Leukapheresis can reduce the circulating white count rapidly, efficiently, and safely, in CLL patients. In a study of 59 CLL patients treated with therapeutic leukapheresis, reduction in elevated lymphocyte counts (lymphocytosis), swollen lymph nodes (lymphadenopathy), and swelling of the liver and spleen (hepatosplenomegaly) was noted in 50-60% of the patients studied. www.acor.org /leukemia/cll/cllfaq/answers/41.html   (194 words)

Arch Intern Med -- Abstract: Therapeutic leukapheresis in hairy cell leukemia, April 1, 1982, Mielke et al. 142 (4): 700   (Site not responding. Last check: 2007-10-24) Arch Intern Med -- Abstract: Therapeutic leukapheresis in hairy cell leukemia, April 1, 1982, Mielke et al. Therapeutic leukapheresis was performed on three patients, and leukapheresis are due to the removal of factors capable of inhibiting archinte.ama-assn.org /cgi/content/abstract/142/4/700   (151 words)

NEJM -- Controlled trial of plasma exchange and leukapheresis in polymyositis and dermatomyositis Uncontrolled trials concluded that both plasma exchange and leukapheresis are beneficial, but despite the considerable use of these approaches, proof of their efficacy is lacking. Thirty-nine patients with definite polymyositis or dermatomyositis were randomly assigned to receive plasma exchange (replacement of one volume of plasma with 5 percent albumin in saline), leukapheresis (removal of 5 x 10(9) to 10 x 10(9) lymphocytes), or sham apheresis in a double-blind manner, with 12 treatments given over a one-month period. The condition of 3 patients treated with leukapheresis and 1 treated with plasma exchange deteriorated, and it was unchanged in the other 26 patients. content.nejm.org /cgi/content/abstract/326/21/1380   (504 words)

Glossary: Pediatric Bone Marrow Transplant Program Refers to the veins in the neck in which catheters may be placed for leukapheresis procedures. A type of temporary central venous catheter that is inserted into a large vein in the neck and used for leukapheresis. Central lines and leukapheresis catheters are venous catheters, i.e., they are placed in large veins. www.pediatrics.medschool.ucsf.edu /bmt/glossary/glossary.htm   (2317 words)

Dissertations from Karolinska Institutet - Published by Karolinska Institutet Karolinska Institutet - ki.se The leukapheresis technology is used to collect other cell types as well, at our center mainly monocytes to be used as a source for dendritic cell (DC) generation. To optimize the leukapheresis procedure for monocyte collection (enrichment and purity as well as the absolute numbers collected) is essential for the final outcome of the numbers and the quality of dendritic cells. By analyzing on-line samples during monocyteleukapheresis we can direct the leukapheresis towards optimized monocyte enrichment and decide the volume to be collected to reach target numbers of monocytes. diss.kib.ki.se /2005/91-7140-574-7   (354 words)

Clinical Study: 02-I-0202, Leukapheresis Procedures to Obtain Plasma and Lymphocytes for Research Studies on ...   (Site not responding. Last check: 2007-10-24) This study will use leukapheresis (drawing blood, separating out the white cells and returning the blood to the patient) to obtain blood cells from HIV-infected patients in either the acute or chronic stage of infection who are being treated with early highly active antiretroviral therapy (HAART). Leukapheresis is necessary to obtain enough cells to delineate the response of B cells to CD4+ T cell help, the CD8 factors associated with suppression of viral replication and normalization of immune function, and natural killer function relative to HIV disease. Leukapheresis will be performed on each patient before HAART therapy begins and then three times a year. clinicalstudies.info.nih.gov /cgi/detail.cgi?A_2002-I-0202.html   (512 words)

Poster Session Abstracts He was treated with leukapheresis and hydroxyurea and survived with no residual neurological deficits. On October 7th and 8th leukapheresis reduced his WBC count to 72,000/mm3. Leukapheresis can quickly reduce the number of circulating blasts as demonstrated here, but cranial irradiation is believed by some to be necessary to stop the proliferation of leukemic cells infiltrating the CNS. www.medlib.iupui.edu /faculty/scs/p84.html   (443 words)

Cancer and Blood Diseases | Bone Marrow Transplant | Before Admission During leukapheresis, blood is removed from the patient and passed through a special machine which collects those white cells that contain the bone marrow stem cells that are present in the blood. Depending on the number of stem cells collected, more than one leukapheresis may need to be done. Also, the leukapheresis may require the placement of a special catheter (femoral line) on the day of or prior to the procedure, which is done in the Pediatric Cardiac Catheterization Laboratory. ucsfhealth.org /childrens/medical_services/cancer/bmt/process/2.html   (830 words)

Mobilization of CD34+ progenitor cells by granulocyte colony-stimulating factor in human immunodeficiency virus type ... Despite concerns that HIV-1 might inhibit hematopoiesis, CD34+ cells were successfully mobilized to the periphery of all donors, independent of the baseline CD4+ T-cell count, and the status of antiretroviral therapy. Leukapheresis was performed on day 6, and yielded a median of 194 x 10(6) CD34+ cells per leukapheresis (n = 7). CD34-enriched cells from the leukapheresis were predominantly myeloid-committed, but between 0.2% and 1.7% were primitive CD34+/CD38- progenitors. www.aegis.com /aidsline/1997/feb/M9721315.html   (499 words)

Granocyte 13 million IU, and 34 million IU , SPC from the eMC After chemotherapy, Granocyte should be administered daily, at the recommended dose of 150 µg (19.2 MIU) per m² per day as a subcutaneous injection starting on the day after completion of chemotherapy until the expected nadir has passed and neutrophil count returns to a normal range compatible with treatment discontinuation. Leukapheresis should be performed between day 5 and 7. Therefore leukapheresis should not be performed in donors who are anticoagulated or who have known defects in haemostasis. emc.medicines.org.uk /emc/assets/c/html/displaydoc.asp?DocumentID=8347   (3665 words)

Journal of Immune Based Therapies and Vaccines | Full text | Rapid construction of a dendritic cell vaccine through ... Therapeutic leukapheresis specimens were obtained from 7 CTCL patients (in accordance with the guidelines of the Yale human investigation committee). Monocytes were obtained from a leukapheresis harvest performed therapeutically on CTCL patients and were cultured overnight with and without passage through a magnetic bead separation column. We confirm that leukapheresis alone generates modest monocyte activation and conversion into immature DC that can be enhanced by further manipulation and the addition of apoptotic cells. www.jibtherapies.com /content/3/1/4   (6132 words)

Pheresis Information on Healthline Also known as apheresis, leukapheresis may be used to treat certain leukemia and to collect cells for autologous Performed before chemotherapy is administered, leukapheresis increases the treatment's impact by reducing the number of cancer cells in the bloodstream and permitting the medication to circulate more freely. Leukapheresis should be performed in a hospital where bone marrow transplantation is frequently performed. www.healthline.com /galecontent/pheresis   (749 words)

CLL Topics: Blood Basics If leukapheresis succeeds in removing 80% of the lymphocytes in your blood, this number goes down from 10 units to 2 units. Incidentally, leukapheresis removes a percentage of all leukocytes in your blood, which means all white cells — B-cells, T-cells, neutrophils, NK-cells, etc. If you are struggling with low T-cells or neutrophils to begin with, leukapheresis is hardly a no cost "free lunch". In such situations, it might be prudent to use leukapheresis to reduce the peripheral blood WBC to a lower level temporarily, in order to reduce the risk of TLS. www.clltopics.org /Blood.htm   (3114 words)

Result Content View Leukapheresis (10 L processed per procedure) was performed through the peripheral venous access placed in both arms, beginning on day 4 of G-CSF administration until the target of 3 million CD34+ cells/kg recipient weight was obtained. Results: The median number of leukapheresis procedures was 2 (1 procedure in 55 donors, 2 in 107, 3 in 55, and 4 in 1), with no significant difference between the two age groups, i.e. All events were mild, and resolved within a few days, but the most commonly observed adverse event attributed to leukapheresis was numbness due to hypocalcemia that necessitated calcium supplementation (19% vs 34%, p=0.02). www.abstracts2view.com /hem/view.php?nu=HEM3L1_2459   (576 words)

Q and A An alternative method for collecting stem cells is leukapheresis. This process is referred to as mobilization and the procedure for collecting the sample is known as leukapheresis. To date, allogeneic transplants have been performed successfully in select patients with hematologic malignancies such as acute and chronic leukemias and lymphomas. www.liddyshriversarcomainitiative.org /Newsletters/V01N03/q_and_a.htm   (698 words)

Leukapheresis for inflammatory bowel disease Leukapheresis involves extracorporeal removal of leukocytes from the blood, either by centrifugation or by passage of blood through an adsorptive system. IPG126 Leukapheresis for inflammatory bowel disease - guidance Interventional procedures overview of leukapheresis for inflammatory bowel disease www.nice.org.uk /ipcat.aspx?o=222014   (318 words)

Low incidence of human herpesvirus 8 in stem cell collections from myeloma patients. Human herpesvirus 8 is a gammaherpesvirus which may be implicated in the pathogenesis of multiple myeloma. In this study, we examined the leukapheresis products of a larger cohort of myeloma patients for the presence of HHV-8 using a highly sensitive PCR technique. While further study is needed, the current use of apheresis cells and their cultured progeny in the treatment of myeloma should not be compromised. www.aegis.com /aidsline/1999/aug/A9980422.html   (427 words)

ACS :: Chronic Lymphocytic Leukemia If very high numbers of leukemia cells are interfering with normal circulation, leukapheresis is used before chemotherapy. Leukapheresis involves passing the blood through a special machine that removes white blood cells (including leukemia cells) and returns the rest of the blood cells and plasma to the patient. Leukapheresis is useful because chemotherapy may not affect the number of cells until a few days after the first dose. www.cancer.org /docroot/CRI/content/CRI_2_4_4X_Chronic_Lymphocytic_Leukemia_62.asp   (729 words)

[No title] N Concordance 1 lood progenitor cells were harvested by leukapheresis using an automated continu 2 lly within 21 days after completion of leukapheresis and the second course 21-3 3 that reliably predicts the efficacy of leukapheresis in these patients. We foun 4 tive bone marrow harvest or outpatient leukapheresis. After hospitalization, a 5 nsistently resulting in cell yields per leukapheresis (LA) procedure that are su 6 for adoptive immunotherapy by selective leukapheresis (lymphocytapheresis). www.ugr.es /~oncoterm/csdata/i_leuphe.txt   (73 words)

NEJM -- Filtration leukapheresis for granulocyte transfusion therapy. Clinical and laboratory studies NEJM -- Filtration leukapheresis for granulocyte transfusion therapy. To study the clinical efficacy of granulocytes obtained by filtration leukapheresis, patients with clinically evident infection and granulocyte counts of smaller than 500 per cubic millimeter were randomly assigned to receive conventional therapy alone or with a granulocyte transfusion obtained from a single donor each day for four days. Functional studies of granulocytes obtained by filtration leukapheresis showed only minor differences although appearance was altered. content.nejm.org /cgi/content/abstract/292/15/761   (237 words)

Cancer and Blood Diseases | Bone Marrow Transplant | Before Admission During leukapheresis, blood is removed from the patient and passed through a special machine which collects those white cells that contain the bone marrow stem cells that are present in the blood. Depending on the number of stem cells collected, more than one leukapheresis may need to be done. Also, the leukapheresis may require the placement of a special catheter (femoral line) on the day of or prior to the procedure, which is done in the Pediatric Cardiac Catheterization Laboratory. www.ucsfhealth.org /childrens/medical_services/cancer/bmt/process/2.html   (830 words)

Chemotherapy Patients can be treated initially with the removal of white cells by a machine that is similar to a dialysis machine. The process is called leukapheresis ("leuk" from the Greek for white (cells) and "apheresis" from the Greek for "withdrawal"). Leukapheresis can be used if the disease occurs during the first months of pregnancy when chemotherapy may be harmful to fetal development. www.cybertraxs.com /Leukemia/chemotherapy.htm   (1742 words)

Data Sheet The adjunctive use of Hemohes 6% injection in leukapheresis has also been shown to be safe and efficacious in improving the harvesting and increasing the yield of granulocytes by centrifugal means The Hemohes 6% injection and citrate should be thoroughly mixed to assure effective anticoagulation of blood as it flows through the leukapheresis machine. If the frequency of leukapheresis is to exceed the guidelines for whole blood donation, you may wish to consider the following additional studies: total leukocyte and platelet counts, leukocyte differential count, hemoglobin and hematocrit, prothrombin time (PT), and partial thromboplastin time (PTT) tests. www.medsafe.govt.nz /Profs/Datasheet/h/Hemohes6percentinj.htm   (1502 words)

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