Was your grandmother in fairly good health prior to the
operation with the exception of vessel occlusion? It takes several months to recover with a younger individual and 2 months is not a very long time, but more importantly is your grandmother slowly improving, or deteriorating? There can be a favorable turn around of the condition very quickly, and we can hope that is the eventual outcome.
Thanks for sharing, and if you have any further quesitons or comments you are welcome to respond.