Delayed localized right atrial tamponade by intrapericardial hematoma after aortic valve replacement: a case report.

Cardiac tamponade, early or late after cardiac surgery, is an uncommon while a potentially lethal condition in which the classic signs of tamponade may be absent. High index of suspicion and rapid diagnosis are mandatory for life-saving decompressive therapy. We herein reported a case of delayed localized right atrial tamponade caused by loculated intrapericardial hematoma 26 days after aortic valve replacement, which was recognized immediately by transthoracic two-dimensional echocardiography. The clinical status improved dramatically after surgical removal of the hematoma.