In the aortic stenosis group, the left ventricular (LV) muscle mass index was a good parameter for predicting the prognosis. Associated mitral valve disease had no influence on long term survival after aortic valve replacement. In the aortic insufficiency group, associated mitral valve disease had a marked influence on the results of aortic valve r...
The present study analyzes a 7-year experience of two concurrent groups of patients, one with and one without coronary artery disease. These groups underwent aortic valve replacement within the same time frame. They had the same method of myocardial protection and type of valve substitute, and there was no postoperative anticoagulant therapy. There...
Serial left ventricular (LV) echocardiographic studies were performed in 21 patients before and after aortic valve replacement for chronic aortic regurgitation. The effect of valve replacement on LV dimensions, cross-sectional area of the LV muscle and LV function was determined from the echocardiographic data. The relation between degeneration of ...
Published in The Annals of Thoracic Surgery
Background. Allograft aortic valve replacement has gained widespread acceptance. However, there is little information about in vivo allograft valve function at rest and during exercise. Methods. Cardiac catheterization was performed to measure hemodynamic variables at rest and during supine bicycle exercise in 44 patients who had had aortic valve r...
Published in The Annals of Thoracic Surgery
Background. There is the potential for left ventricular outflow obstruction when small aortic valve bioprostheses are employed in normal-sized or large adults. It has been hoped that bovine pericardial valves would improve hemodynamic performance in the smaller tissue valve sizes. Methods. To determine in vivo hemodynamic performance of heterograft...
Published in The Annals of Thoracic Surgery
Aortic valve replacement was performed through a left anterolateral thoracotomy using cardiopulmonary bypass in a 59-year-old man who had previously received esophageal resection with substernal reconstruction by gastric tube. Through this approach, injury of the reconstructed tube was avoided and the valve replacement operation was safely performe...
Published in Surgery Today
Published in The Annals of Thoracic Surgery
We report a case of methicillin-resistant Staphylococcus aureus-induced prosthetic valve endocarditis, which was successfully treated with aortic valve replacement using the Freestyle stentless bioprosthesis. The total root and stentless design of this bioprosthesis allows for more radical removal of infected tissue and easier treatment for annular...
Published in The Annals of Thoracic Surgery
Background. Minimally invasive surgical approaches have been applied recently in the management of valvular heart disease. In this report, we reviewed our preliminary experience of minimally invasive aortic valve replacement. Methods. Eighteen patients were operated on by means of an “I” ministernotomy, and 16 patients were operated on by means of ...
Published in The Japanese Journal of Thoracic and Cardiovascular Surgery
A patient with aortic regurgitation and idiopathic thrombocytopenic purpura underwent a successful valve replacement. Cardiac surgery requiring a cardiopulmonary bypass in idiopathic thrombocytopenic purpura can be safely carried out with the preoperative intravenous administration of high-dose gammaglobulin, which may thereby reduce the need for e...
