Although atrial myocardial infarction is an entity that has been reported for decades, it is frequently neglected in clinical practice. Isolated infarction of an atrium is rare, usually occurring concomitantly with ventricular myocardial infarction.
The major complications of atrial infarction are cardiac arrhythmias, thromboembolization and atrial rupture. We report an 84-year-old male patient with left atrial rupture following subacute inferolateral STEMI and left atrial infarction.