Hi San,
I know the worry and upset you are all going through but i am positive your mum is going to get through this.
My dad had a heart condition one in which it just used to totally go out of sink you know fast then slow then nothing etc, this resulted in him having three heart attacks,he has been defibrillated three times where they stopped his heart beating with a drug then zapped him to try and get it beating properly again, the last time it took 5 attempts to get it going again it burned all his hair off his chest!! He has now had 3 stents put in his heart and rattles when he walks from his tablets but he is now absolutely fine and leads a normal life (except he is not allowed to go above a certain altitude so certain holidays are out but hey!)
What i am trying to say is keep strong she will get through it modern medicine now is amazing,,my mum is currently going through chemotherapy they said 20 years ago she would not have stood a chance but the treatments and drugs now are fantastic!!!
Wishing you and your mum all the best :hug: :hug: :hug: :hug: