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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]
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.
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 ...
Erythrocytapheresis is an apheresis procedure by which erythrocytes (red blood cells) are separated from whole blood.It is an extracorporeal blood separation method whereby whole blood is extracted from a donor or patient, the red blood cells are separated, and the remaining blood is returned to circulation.
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
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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