What Is Nonvalvular Atrial Fibrillation - Web atrial fibrillation, also called af or afib, is a quivery, fluttery heartbeat. Web nonvalvular atrial fibrillation, which occurs in the absence of rheumatic valve disease, a mechanical or. You might also hear the doctor call it arrhythmia. You may not know you have atrial fibrillation (afib). The condition may be found when a health.
You may not know you have atrial fibrillation (afib). Web nonvalvular atrial fibrillation, which occurs in the absence of rheumatic valve disease, a mechanical or. You might also hear the doctor call it arrhythmia. Web atrial fibrillation, also called af or afib, is a quivery, fluttery heartbeat. The condition may be found when a health.