You might want to consider a Watchman. See if you can get an appointment with an electrophysiologist (a cardìologist)that specializes in the electrical system of your heart. She/he would do both the Watchman procedure and the ablation, if necessary. Since the Watchman prevents blood clots in your heart, thus traveling to your brain, it prevents strokes without the use of oral blood thinners. My bruising is minimal now. The Watchman is implanted through a vein/artery (I can't remember which one) but no major heart surgery 😄. Talk to the cardiologist and make the decision that's right for you.
Best wishes!