Abstract
We describe a case of 43-year-old man with transcatheter closure of atrial septal defect (ASD) with the Amplatzer Septal Occluder that was embolized to the main pulmonary artery. Echocardiography could not identify the occluder device at the interatrial septal position. Tomography confirmed its dislocation (Figure 1). Silent device dislodgement which is a rare complication in terms of being asymptomatic was managed immediately. It was removed via pulmonary arteriotomy (Figure 2A and B) and the ostium secundum ASD without inferior rim was closed by using an autologous pericardial patch on total cardiopulmonary bypass. His postoperative period was uneventful.

Key words: Device Removal; Heart Septal Defects, Atrial; Septal Occluder Device