ABSTRACT
A 60-year-old man was admitted to our hospital due to cerebellum infarction. He had undergone replacement of the aortic valve and ascending aorta because of aortitis syndrome 2 years ago. Electrocardiogram showed complete atrioventricular block. Echocardiography showed aortic annular abscess and vegetation on the prosthetic aortic valve. A pulmonary autograft was transplanted of the aortic root (Ross operation) after complete resection of the infected sites. The postoperative course was uneventful. The ross operation was considered to be a treatment of choice for prosthetic aortic valve endocarditis.
ABSTRACT
Reoperations after operations for acute type A aortic dissection were performed in two cases under deep hypothermic circulatory arrest. In case 1, the aortic arch replacement was performed with an inclusion technique seven years ago. The reason for reoperation was the leak from the suture lines of all anastomosis sites. Three sites of leak were closed putting sutures with pledgets. In case 2 the graft replacement of the ascending aorta was performed five years ago. The reason for reoperation was the persistent dissection from the aortic arch to the thoracic descending aorta due to the new entry formation at the site of the aortic clamp. At first the graft replacement of the thoracic descending aorta was performed, followed by arch replacement. As these conditions are preventable, we should perform the open distal anastomosis technique without using a clamp and graft replacement of aortic arch with the branched graft. Moreover, deep hypothermic circulatory arrest may appear to be a valuable adjunct for reoperation after operation on acute type A dissection.
ABSTRACT
A 32-year-old woman with Marfan's syndrome who had had a heart murmur in childhood was admitted due to congestive heart failure. Her echocardiography showed anterior and posterior leaflet prolapse of the mitral valve, and also severe mitral valve regurgitation. Her chest CT scan showed no evidence of an enlarged ascending aorta. We performed mitral valve replacement using a mechanical valve, because the long-term results of mitral valve repair for Marfan's syndrome are unknown. We reviewed the literature for other examples of this rare adult case with isolated mitral regurgitation associated with Marfan's syndrome.
ABSTRACT
A 49-year-old man who had had severe tripple vessel coronary disease and low left ventricular function (EF=29%) underwent coronary artery bypass grafting. Following the procedure he could not be weaned from cardiopulmonary bypass (CPB) even with an intra-aortic balloon pumping (IABP). Left ventricular assist using a centrifugal pump (CFP) together with IABP was then utilized with a dramatic recovery from profound postcardiotomy cardiogenic shock, and the CPB was successfully terminated. The left ventricular function recovered gradually from intraoperative myocardial damage. The CFP was successfully removed at 86 LHB hour and the IABP at 9th postoperative day. At present 12 months after LHB, he reveals no angina. Settting up the left ventricular support using a CFP is simple and not-time-consuming, so this system with IABP is of practical use in the case of unpredicted postcardiotomy cardiogenic shock.