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Plasmapheresis (from the Greek πλάσμα, plasma, something molded, and ἀφαίρεσις aphairesis, taking away) is the removal, treatment, and return or exchange of blood plasma or components thereof from and to the blood circulation. It is thus an extracorporeal therapy, a medical procedure performed outside the body. [1]
Plasma Economy (Chinese: 血浆经济) was a 1991–1995 plasmapheresis campaign by the Henan provincial government in China, in which blood plasma was extracted in exchange for money. The campaign attracted 3 million donors, most of whom lived in rural China, and it is estimated at least 40% of the blood donors subsequently contracted HIV .
In immunology, antiserum is a blood serum containing antibodies (either monoclonal or polyclonal) that is used to spread passive immunity to many diseases via blood donation (plasmapheresis). For example, convalescent serum , passive antibody transfusion from a previous human survivor, used to be the only known effective treatment for ebola ...
Fresh frozen plasma (FFP) is a blood product made from the liquid portion of whole blood. [3] It is used to treat conditions in which there are low blood clotting factors (INR > 1.5) or low levels of other blood proteins.
Epidemiologists started to believe that the disease was being spread through blood products, with grave implications for hemophiliacs who had routinely been treated with concentrate made from large pools of donated plasma, much of which was collected by commercial paid-donor plasmapheresis prior to routine HIV testing, often in U.S. cities that ...
Plateletpheresis products are also easier to test for bacterial contamination, a leading cause of transfusion-associated deaths. [ citation needed ] Pooling of whole blood platelets is often done in an "open" system where the platelet containers are connected in a way that could expose the platelets to air, and pooled platelets must be ...
The new test comes with a free app that will let people who test negative display a temporary, date-stamped health pass when asked. The Trump administration plans to purchase 150 million of these ...
Generally, apheresis has to be performed fairly often, and is an invasive process. It is therefore only employed if other means to control a particular disease have failed, or the symptoms are of such a nature that waiting for medication to become effective would cause suffering or risk of complications.