Echo ejection fraction is 37 with persistent a fib.does this mean i am approaching heart failure?thank you.

Possibly: Your diminished ejection fracture makes congestive heart failure a future possibility. At this time you probably don't have symptoms of CHF except for mild shortness of breath on exertion. You require careful treatment of salt restriction andany hypertension and use of medications to unburden your left ventricle. and followup by a cardiologist because of your low EF.

It is likely: Your ejection fraction is half optimum. If A-fib is the only reason then steps to deal with it can improve your situation. If you are constantly in A-fib then you should be on meds to control the rate and prevent blood clots. If not, then medication to prevent occurrences of A-Fib. A cardiology electro physiologist may be able to map your heart's circuitry and correct the rhythm. Look into it.