My mom had a MCA occlusion stroke yesterday morning straight out of bed...

Mom is in the hospital right now. They were going to transport her to a top notch hospital to do a procedure on a clot that is in a very difficult place to remove. A few minutes later we were told it would be too risky for her to get it done and she could die during the procedure. Her mouth is drawn up. Her speech is so limited and no use of her left side because the stroke was on the right. After she is released from the hospital she will be going to nursing home/rehab. I'm scared. She can't eat without drooling all over herself. This particular stroke has a fatality of 80 percent. The only thing they can do for her is give her aspirin and cholesterol meds. My mom is thin. Eats healthy. Exercises daily. I just don't get it. If anyone knows anything about this particular stroke, please give me some hope.... Thanks for reading....