I am 62, overweight, with a history of High BP for 3 years mostly controlled by meds. I was hit suddenly with AFIB last October and spent my 62nd birthday in the hospital getting an electro-cardioversion which left me in normal rhythm for about 10 days before the AFIB started up again. I gave been in AFIB ever since, taking blood thinner and calcium channel blocker. I am struggling with the decision about ablation since there is only a 50-60% chance of success on the first try. I also have an "enlarged" (no idea HOW enlarged) left atrium and "moderate" mitral valve regurgitation. I read these problems tend to cause people to have AFIB. So... I wonder how the ablation will fix these problems? My EP is wants to do the ablation, but my cardiologist is pushing me to get a gastric bypass instead. That won't stop the AFIB , and I can't do two procedures at once! For now, the meds are keeping my heart rate under 100 MOST of the time, but my heart is constantly in AFIB (persistent). I am dieting and exercising trying to lose weight on my own. (Over the last 3 years , I lost 2.5+ stones and have kept it off... but I guess the cardiologist wants faster weight loss.) I want to make a good decision about the ablation. Will the enlarged left atrium and moderate mitral valve regurgitation reduce my chances of a successful outcome with ablation ? High BP (controllable with meds) and being overweight are my only other risk factors. Any input is appreciated.