Ron - Consider talking to your Dr. about having an Ablation procedure.
Ablation is a procedure that involves a catheter thru the femoral artery to the heart. The electrical flow to the heart is "tweeked" to allow the heart to resume a normal rythem. Don't ask me the exact science, but it does work, reduces the risk of stroke, and removes the need for further medications.
I had similar issues three years ago. Blood thinners for several months to dissolve any clotted blood that may have been pooled in my heart, then the Ablation procedure. Not painful, as these things go, and home the same day. No issues since, and my Dr. advises it is usually uncommon for it to return after the procedure (though not impossible). Larry
I guess I'm an old hand at heart problems.
My problems began in 1994 with v-fib. I had a pacemaker/defibrillator implanted at that time.
About 4 years later, the battery on my defib. needs replacing, which means removing the old one and implanting a new fresh one. I heard about a procedure called atrial ablation, and after looking into it, had the procedure. They leave the defibrillator inside you, then, after 6 months you come back in for a study.
They pace your heart at about 200 bpm to see if they can induce a-fib (or v-fib). If they can't, they then remove the device, which is the way it went for me.
However, that was not the last ablation I would have. I've had radiofrequency ablations (heat is used to kill off misfiring areas of the heart. I had about 3 of those over the years, and my last (in 2012) was a cryo-ablation, where they freeze the misfiring areas.
I've also had a cardioversion, where they take those paddles and shock your heart back into sinus rhythm.
Pacemakers do nothing for a-fib. A-fib is when you heart rate goes out of rhythm, usually at a high rate, not a low one where a pacemaker would kick in.
My defibrillator never fired during the 4 years I had it. If you have one, they tell you you can't drive a car, because if it fires while driving, you may lose control of the vehicle and crash into someone. Many people ignore that warning, including me. How was I supposed to get to work?
I take a drug called Sotalol for my a-fib, along with a full-strength (325mg) aspirin daily.
Sorry to ramble, but wanted to explain my experience on the topic.