The long-term outlook (prognosis) for people with Guillain-Barre syndrome (GBS) varies considerably. About 80% of people with GBS walk independently 6 months after the diagnosis, and about 84% walk independently one year after the diagnosis. About 60% of people with GBS have full motor strength recovery at one year, but severe motor problems persist in about 14%. Five to ten percent have a prolonged course, with several months of ventilator dependency and very delayed and incomplete recovery.
In about 10% of people with GBS, an acute relapse occurs after initial improvement or stabilization after treatment. The risk of relapse appears to be higher in those who have had a later onset of treatment, a longer-lasting disease course, and more associated medical conditions. Recurrence of GBS is rare but has been reported in 2-5% of affected people. About 2 percent go on to develop chronic inflammatory demyelinating polyradiculoneuropathy (CIDP).
Last updated: 12/10/2015
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