My Mom 88 Yrs Old Fell Backwards On The Step

My mom 88 yrs old fell backwards on the step and had concussion and brain bleed. She was conscious but life flew her to Vanderbilt. They put vent in before they took her. Was there 6 days, was doing commands and breathing 80 percent and still didn't take out vent. She would have tears in one eye too. I feel they let her die. Keep telling us she had brain damage and would never be the same. So we didn't. Put vent bak in. Do u think she would have been ok