Atrial fribulation/flutter

I suffer from atrial fribulation. I am on coumadin and tambacor (arrythmia medication). I am considering a special procedure: The cardio-electro-physiologist takes a cathater from my groin up into the area around my heart and performs a radio frecquency oblation. The only problem is that there is a 3% chance something could go wrong, one of which is a stroke. I have tried many natural therapies, but thus far nothing has worked. I'm 46, in excellent shape, I cycle and weight train, and have a resting heart rate of 56. According to the eco-cardiogram, my heart is in excellent shape. It's just that my electrical system has gone out of wack.

Is there hope for a natural cure?