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I had a pt once who was a 33 yo soccer player that came down with G.B. Started with lack of sensation in the toes, then lack of movement, it worked upward, had to put him on a ventilator, couldn't expand his chest. Then could only move his eyes. Lasted one month or more. Then gradually returned to normal except he needed 1 year of Physical and Occupational Therapy to learn how to use his muscles again. Can be a nasty diagnosis.
I didn’t realize people recovered from it. My friend must have something else, I’ll call and ask her. Hers is not reversible unfortunately.