I am 40 years old. I have been diagnosed with chronic atrial fibrillation. I have bi-atrial enlargement and hypertrophy of my right ventricle. I also have trace to mild leakage in my tricuspid and mitral valve. I was diagnosed about a year ago. I have refused anti-coagulation and remain firm on this at this time. Yes. I know the risks. I am wondering if anyone else out there chooses to refuse anti-coagulation ?