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1.
Article in Japanese | WPRIM | ID: wpr-887111

ABSTRACT

The patient was a 50-year-old man who had undergone ascending aortic replacement and coronary artery bypass grafting at another hospital for acute type A aortic dissection 4 years before. He was diagnosed with hemolytic anemia 1 year after surgery for his progressive anemia and high serum lactate dehydrogenase level. He was referred to our hospital because frequent transfusion was required. A computed tomography showed severe kinking of the graft (110°), which we considered to be the cause of hemolysis. Peak pressure gradient was 60 mmHg. To remove the cause of hemolysis and to precipitate thrombosis of the residual false lumen, we performed re-ascending aortic replacement and total arch replacement with a frozen elephant trunk. The postoperative course was uneventful and hemolysis resolved soon after the operation. Surgeons should be aware that severe kinking of a Dacron graft can be a cause of hemolysis.

2.
Article in Japanese | WPRIM | ID: wpr-825982

ABSTRACT

A 71-year-old woman with a history of closed commissurotomy for mitral valve stenosis 44 year ago, was diagnosed with left ventricular aneurysm by transthoracic echocardiography. She had no symptom of left ventricular aneurysm. Since there was a high risk of left ventricular rupture, we decided to undertake surgical treatment. During the surgery, we found artificial material near the left ventricular aneurysm. We resected the aneurysm wall and closed the ventricular wall using felt strip reinforcement. The wall of the aneurysm had no myocardium upon pathological examination. We diagnosed that it was a left ventricular pseudoaneurysm, and it seemed to be formed by blood oozing from the apical repair point of the hole for the dilator to perform mitral valvulotomy. The postoperative course was uneventful and she was discharged on postoperative day 20. Left ventricular pseudoaneurysm often results after myocardial infarction, and reports after cardiac surgery are rare, except in cases after mitral valve replacement. We hereby report our experience with this rare case

3.
Article in Japanese | WPRIM | ID: wpr-375914

ABSTRACT

Although aortic annular abscess and rupture of the sinus of Valsalva are known as complications of infective endocarditis, few cases in children have been reported. We report a surgical case of a 6-year-old girl with active infective endocarditis complicated with an annular abscess and pseudoaneurysm of the sinus of Valsalva. The patient presented progressive symptoms of heart failure and a subsequent echocardiogram demonstrated severe aortic regurgitation. A computed tomography indicated pseudoaneurysm of sinus of Valsalva and an emergency operation was performed. At operation, a bicuspid aortic valve with vegetation was noted. The annular abscess caused a large tissue defect of the left coronary sinus of Valsalva and formed a pseudoaneurysm. The infected lesion was resected completely. The defective aortic annulus and sinus of Valsalva were repaired with a bovine pericardial patch and aortic valve was replaced with a mechanical valve. The postoperative course was uneventful and the patient was discharged after adequate antibiotic treatment.

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