Dura mater mitral and tricuspid bioprostheses: 30 years of follow-up.

Purpose: The dura mater bioprosthesis was developed in the Department of Cardiopneumology of the Hospital das Clínicas of the University of São Paulo Medical School in 1971. Here, we present the clinical results of the dura mater bioprosthesis over 30 years of follow-up.

Methods: We studied 70 consecutive patients who underwent mitral or tricuspid valve replacement with a dura mater bioprosthesis between January 1971 and August 1972.

Fisics-Incor bovine pericardial bioprostheses: 15 year results.

Background: From March 1982 to December 1995, 2,607 Fisics-Incor bovine pericardial bioprostheses were implanted in 2,259 patients. Mean age was 47.2 +/- 17.

Double-outlet right ventricle with nonrelated ventricular septal defect: surgical results using the multiple patches technique.

Objective: Introduce a new surgical technique for biventricular correction of double-outlet right ventricle with noncommitted ventricular septal defect.

Methods: From April 1987 to February 1996, 15 patients with double-outlet right ventricle with noncommitted ventricular septal defect were operated on using a new technique for biventricular repair with multiple bovine pericardial patches to create a tunnel between the left ventricle and the aorta. Ages ranged from two months to 13 years (mean age 4.

Mitral valve repair in rheumatic patients.

Background: There is controversy regarding the role of reparative techniques for rheumatic-mitral valve disease. We have analyzed the late results of mitral valve repair in a group of patients with rheumatic mitral valve insufficiency.

Methods: From March 1980 to December 1997, 201 patients with rheumatic fever underwent mitral valve repair at the Heart Institute, Hospital das Clínicas, Medical School, University of São Paulo.

Mitral valve repair. Quadrangular resection of the posterior leaflet in patients with myxomatous degeneration.

OBJECTIVE - To analyze the immediate and late results of mitral valve repair with quadrangular resection of the posterior leaflet without the use of a prosthetic ring annuloplasty. METHODS - Using this technique, 118 patients with mitral valve prolapse who underwent mitral repair from January '84 through December '96 were studied. Age ranged from 30 to 86 (mean = 59.

Mitral valve repair. Quadrangular resection of the posterior leaflet in patients with myxomatous degeneration.

Objective: To analyze the immediate and late results of mitral valve repair with quadrangular resection of the posterior leaflet without the use of a prosthetic ring annuloplasty.

Methods: Using this technique, 118 patients with mitral valve prolapse who underwent mitral repair from January '84 through December '96 were studied. Age ranged from 30 to 86 (mean = 59.

[Ischemic mitral valve insufficiency. Incidence, diagnosis and surgical treatment].

Purpose: To study the incidence of ischemic mitral regurgitation (MR) and the mortality.

Methods: One-hundred-five cases of acute myocardial infarction (AMI) with MR were reviewed. Patients were divided in two groups: group A-59 (56.

[Hemorrhagic infarction due to myocardial reperfusion. Report of 4 cases].

Four different clinical cases in which the myocardial reperfusion occurred after acute myocardial infarction, and was followed by significant hemorrhagic ventricular damage. We discuss some possible etiologic mechanism of the problem and present some methods of myocardial protection which are meant to lessen those negative effects of the reperfusion. We conclude setting the difficulty to determine the critical moment after which the myocardial reperfusion turns inefficient or even harmful.

[Right ventricular dysplasia associated with Ebstein type malformation of the tricuspid valve. A case report].

Right ventricular dysplasia, also named right ventricular cardiomyopathy, cardiac lipidosis and partial absence of the right ventricular myocardium, is an uncommon disease in which the myocardium is partially replaced by fat and fibrous tissue. The clinical picture is usually characterized by complex arrhythmias, causing sudden death in adolescents and young adults, and cardiac failure. In this report, an association between this disease and "Ebstein-type" tricuspid valve malformation has been diagnosed in a 22 year old female patient with cianosis and dyspnea on exertion.

[Surgical treatment of tetralogy of Fallot associated with an anomalous coronary vessel].

Anomalous coronary arteries crossing the outflow tract of the right ventricle in tetralogy of Fallot have a prominent surgical importance in total correction. The unintentional section of these arteries is followed by a high mortality. In the period between 1977 and 1987, 475 patients with tetralogy of Fallot were operated on.