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Apheresis (ἀφαίρεσις (aphairesis, "a taking away")) is a medical technology in which the blood of a person is passed through an apparatus that separates out one particular constituent and returns the remainder to the circulation. It is thus an extracorporeal therapy. One of the uses of apheresis is for collecting hematopoetic stem ...
Peripheral blood stem cell transplantation (PBSCT), also called "Peripheral stem cell support", [1] is a method of replacing blood-forming stem cells.Stem cells can be destroyed through cancer treatments such as chemotherapy or radiation, as well as any blood-related diseases, such as leukemia, lymphoma, neuroblastoma and multiple myeloma. [2]
Peripheral blood stem cells [38] are now the most common source of stem cells for HSCT. They are collected from the blood through a process known as apheresis . The donor's blood is withdrawn through a sterile needle in one arm and passed through a machine that removes white blood cells .
During apheresis treatments adverse events such as anemia, citrate toxicity, central venous catheter safety and infections are notable. [ 2 ] [ 3 ] [ 8 ] Anemia : Anemia is related to numerous and/or consecutive treatments and/or large extracorporeal circuits that reduces the hemoglobin levels in pediatric patients.
Plasma is then removed from the blood by a cell separator. Three procedures are commonly used to separate the plasma from the blood cells, with each method having its own advantages and disadvantages: [citation needed] Discontinuous flow centrifugation: One venous catheter line is required. Typically, a 300 ml batch of blood is removed at a ...
Allie soon went to the Gulf Coast Regional Blood Center in Houston, where for eight hours she donated peripheral blood stem cells through apheresis, a nonsurgical procedure that removes components ...
Stem cell tourism is the part of the medical tourism industry in which patients travel to obtain stem cell procedures. [109] The United States has had an explosion of "stem cell clinics". [110] Stem cell procedures are highly profitable for clinics. The advertising sounds authoritative but the efficacy and safety of the procedures is unproven.
In medicine, photopheresis (aka extracorporeal photopheresis or ECP) [1] is a form of apheresis and photodynamic therapy in which blood is subject to apheresis to separate buffy coat (WBC + platelets) from whole blood, chemically treated with 8-methoxypsoralen (instilled into a collection bag or given per os in advance), exposed to ultraviolet light (UVA), and then returned to the patient. [2]