My father was operated for pituitary gland 10 years ago.after that he was normal.recently he was detected with high sugar h1 reading 800.he became unconscious and was admitted to icu.after 15 days he was recoverd .he is in insulin 3 times 10 unit.post recovery he is mentally disturbed .doesn't remember any thing.bed wetting problem .not able to sleep inspite taking sleeping pills. Behaviour is abnormal .he can't differentiate any thing or able to communicate .always speaking something meaningless.can he recover ? although consulted neurologist but no improvement