Atrial Fibrillation is a kind of arrhythmia which has the most incidence. Based on its Etiology, atrial fibrillation could be divided in to two, valvular atrial fibrillation and nonvalvular atrial fibrillation. This study was aimed to know the correlation of atrial fibrillation incidence between normal and abnormal heart valve with its left atrium diameter in Arifin Achmad Provinsi Riau’s Gen…