Plasmapheresis is a process in which the liquid part of the blood, or plasma, is separated from the blood cells.
Typically, the plasma is replaced with another solution such as saline or albumin, or the plasma is treated and then returned to your body. Plasmapheresis can be used to treat a variety of autoimmune disorders including:
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Myasthenia gravis
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Guillain-Barre syndrome
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Chronic inflammatory demyelinating polyneuropathy
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Lambert-Eaton myasthenia syndrome
It can also be used to treat certain complications of sickle cell disease, as well as certain forms of neuropathy.