demyelinating polyneuropathy something

I would like you to explain me something. I have just returned with my grandmother from the hospital. She went there after several months of problems she has been experiencing. She is 74 years old and she started feeling some movement misbalance, as if she cannot control her limbs 100 percent. She said that in the beginning it was more like a slight discomfort, but it has progressed in that manner she couldn't even get up stairs normally. Doctors sent her to a neurologist and murmured about demyelinating polyneuropathy something like that, I am not sure. Can you tell me about her condition?

I think that the best thing would be to wait for neurologist examination. Demyelinating Polyneuropathy is a rare type of neuropathy. Unfortunately, it has a steady progressive course that lasts for months, even years. Its cause is damaged immune system. This condition could be fatal if not treated (this goes for ten percent of people suffering from it). Medications used in this therapy are corticosteroids and cytotoxic drugs.