ditto often. BIG difference.
I doubt that can be answered.....but I didn't want one either...fought it for a year....silly me....what a difference it made in my life. I have never been shocked...but if I ever am, it will mean that I would have died had I not had it.
The survival rate will depend on a lot of other things, but CHF patients are at a higher risk of sudden cardiac death....
Think about it.