Idiopathic dilatation of the right atrium: a case report

Abstract

Idiopathic dilatation of the right atrium is a rare congenital anomaly that presents as an isolated enlargement of the right atrium. Thrombus formation and atrial arrhythmias are the major complications and management with antiplatelet therapy is recommended. Reduction atrial plasty is reserved for specific patients. We report a case of idiopathic dilatation of the right atrium diagnosed prenatally with a 10-year follow-up.