My 81 year old mother just had her pacemaker replaced. She is totally dependent on it.l Her ejection fraction came back at 20% andd her Bnp blood test 2400. She had to be rushed to hospital, as she was having issues. Her breathing has been labored since coming back home, on 40 mg lasix daily. Also she has lost her voice - down to a whisper. Can a person go on very long with all of this?