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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]
The main advantage is a single venipuncture site. It does require a larger extracorporeal volume, and takes significantly longer to perform the procedure via IFC. As such, it is less likely to be used for therapeutic reasons, and is often seen in Donation Center settings. [6]
The applications of photophoresis expand into the various divisions of science, thus physics, chemistry as well as in biology. Photophoresis is applied in particle trapping and levitation, [3] in the field flow fractionation of particles, [4] in the determination of thermal conductivity and temperature of microscopic grains [5] and also in the transport of soot particles in the atmosphere. [6]
It is thus an extracorporeal therapy, a medical procedure performed outside the body. [1] Three general types of plasmapheresis can be distinguished: Autologous, removing blood plasma, treating it in some way, and returning it to the same person, as a therapy. Exchange, a patient's blood plasma is removed, while blood products are given in ...
Extracorporeal shockwave lithotripsy (ESWL), which is unrelated to other extracorporeal therapies, in that the device used to break up the kidney stones is held completely outside the body, whilst the lithotripsy itself occurs inside the body. Extracorporeal radiotherapy, where a large bone with a tumour is removed and given a dose far ...
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Extracorporeal photopheresis, a therapy in which blood is treated with a photosensitizing agent and subsequently irradiated with light; External counterpulsation, a non-invasive therapy used to treat chronic angina and other ischemic heart diseases; Eye Care Professional, an individual who provides a service related to the eyes or vision
Hemoperfusion or hæmoperfusion (see spelling differences) is a method of filtering the blood extracorporeally (that is, outside the body) to remove a toxin.As with other extracorporeal methods, such as hemodialysis (HD), hemofiltration (HF), and hemodiafiltration (HDF), the blood travels from the patient into a machine, gets filtered, and then travels back into the patient, typically by ...