ABSTRACT
A 24-year-old woman with patent ductus arteriosus underwent division of the ductus. On the fifth postoperative day (POD 5), MRSA was detected in pus from the wound. On POD 8, an emergency operation was performed for left tension hemothorax due to a ruptured aorta with MRSA infection. The bleeding site in the descending aorta was covered with a viable omental flap under deep hypothermic circulatory arrest. Although MRSA was detected in the pleural effusion and the aortic wall, the patient recovered from pyothorax, and pneumonia caused by <i>Pseudomonas aeruginosas</i> and acute renal failure. On POD 37, a pseudoaneurysm of the descending aorta was found and graft replacement was performed on POD 56 due to enlargement of the aneurysm. However, MRSA was not detected in the left pleural effusion. The postoperative course was uneventful. Omental transfer should be considered for the treatment of severe aortic wall infection, even in the presense of MRSA infection.