Do you know if they were able to give him TPA at the hospital when he got there? That drug is amazing and it begins reversal almost through clot break up and stopping the brain bleed. My father had a stroke a few months back. When I rushed into the ER (I work there) he was limp on a stretcher. He was looking around but seemed to have no cognition at all and his right side was completely paralyzed. It was the most horrible thing to witness when they are in that state. That said, they can do amazing things through therapy now. I didn't think my dad would ever walk again or talk as the first couple days were all gobble de gook speach. Now, his speach is back and he is walking, though needs some help. In my fathers case, he is 83 and was already very weak before the stroke. My prayer's for your grampaw to heal quickly.