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Plasma Exchange Effective In Treating Severe MS Relapses

1/20/2011

A new guideline from the American Academy of Neurology recommends using plasma exchange to treat people with severe relapses in MS and related diseases, as well as those with certain kinds of nerve disorders known as neuropathies. The guideline is published in the January 18, 2011, print issue of Neurology®, the medical journal of the American Academy of Neurology.

Plasma exchange, formally known as plasmapheresis, is the process of taking blood out of the body, removing constituents in the blood's plasma thought to be harmful, and then transfusing the rest of the blood (mainly red blood cells) mixed with replacement plasma back into the body.

The guideline recommends doctors consider using plasma exchange as a secondary treatment for severe flares in relapsing forms of MS and related diseases. The treatment was not found to be effective for secondary progressive and chronic progressive forms of MS. According to the guideline, doctors should offer plasma exchange for treatment of severe forms of Guillain-Barré syndrome and for temporary treatment of chronic inflammatory demyelinating polyneuropathy. Plasma exchange may also be considered for treatment of some other kinds of inflammatory neuropathies.

"These types of neurologic disorders occur when the body's immune system mistakenly causes damage to the nervous system. Plasma exchange helps because it removes factors in the plasma thought to play a role in these disorders," said guideline lead author Irene Cortese, MD, a neurologist with the National Institutes of Health in Bethesda, Md., and a member of the American Academy of Neurology.

Side effects of plasma exchange include infection and blood-clotting issues.



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