Posibleng Mga Sanhi para sa Premature Atrial Contractions Chronic Alcoholism Chronic na Obstructive Pulmonary Disease Atrial Arrhythmia Cor Pulmonale Hyperthyroidism Multifocal Atrial Tachycardia Graves Disease Malalang Atrial Infarction Familial Isolated Dilated Cardiomyopathy Malalang Cor Pulmonale Fabry Disease