Does anyone have experience with afib in 70s or 80s possibly caused by the rare genetic disease Ebstein's Anomaly? I'm 85 and have a lot of responsibilities and am wondering about mortality with this condition. Ebstein's pulls the atrium out of shape as it affects the tricuspid valve and probably causes the afib. I'm wondering if I'll slowly notice that I'm functioning worse or if I might die suddenly. I just went from one afib attack a year to one attack a week – still while feeling okay, exercising, etc.