Abstract: Atrial fibrillation (AF) is one of the most common reasons for tachycardiainduced cardiomyopathy， and left ventricle dysfunction can induce and facilitate the long lasting of AF. Any complex of structural， architectural， contractile or electrophysiological changes affecting the atria with the potential to produce clinicallyrelevant manifestations was defined as atrial cardiomyopathies. Atrial cardiomyopathies can be led by the long lasting AF， while it may also cause the onset of AF. However， further studies are necessary to explore the type and cause of atrial cardiomyopathies， and its association with AF.

Key words: atrial , fibrillation, cardiomyopathies; , tachycardia