Hi,
I am very sorry to hear about your granddaughter's battle and wish her and her doctors all the best. Sometimes the body's ability to protect the brain even through such a long period of time from permanent damage can be phenomenal. If the doctors are hopeful that they are able to support her until she is "ready to come out of it...." well, that is certainly good news, isn't it?
The other thing (not medication related) that can have a definite POSITIVE IMPACT on her recovery is if people from the family and friends to to visit with her, talk to her, read to her, tell her about current events that are going on,
stroke her hands, arms, forehead, cheeks. These types of sensory inputs will travel to parts of the brain that can then, send relay electrical messages to the central WAKING UP center of the brain which is located in the brain stem but ultimately stimulates a structure called the thalamus which then, causes generalized CORTICAL STIMULATION.
Don't underestimate the power of this sort of therapy. You don't truly know what she is capable of taking in, processing, and then, responding to so long as she is in this state so assume she is awake and treat her that way. All the best.
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Dr. Dariush Saghafi, Neurologist