I am in permanent a-fib. I am trying to find help for the breathlessness it causes. I have had 3 cardioversions - they didn't work - one lasted 2 days. I am on metropolol, losartan, lipitor, xarelto, lasix, klor con and tikosyn. I am too old for an ablation procedure - 85-year-old female. Any suggestions on how to deal with the breathlessness would be greatly appreciated.