Morbidity and Mortality in Patients Undergoing Mitral Valve Replacement at a Cardiovascular Surgery Referral Service: a Retrospective Analysis.

Introduction: We aimed to identify predictors of morbidity and mortality in patients undergoing isolated mitral valve replacement.

Methods: This is a retrospective cohort study with 164 patients who underwent isolated mitral valve replacement at a referral hospital for cardiovascular diseases, which were performed from January 2011 to December 2016. Data were obtained from medical records, including preoperative, intraoperative, and postoperative information.

Clinical and ultramicroscopic myocardial randomized study of beating versus arrested heart for mitral surgery.

Introduction: Beating heart surgery on normothermic bypass simulates physiologic cardiac status.

Objectives: This study compared clinical and transmission electron microscopic aspects of myocardial protection during mitral valve replacement using warm retrograde perfusion in empty beating versus arrested heart with cold blood anterograde cardioplegia.

Methods: Randomized study to evaluate myocardial cellular ischemia-reperfusion of both techniques to replace the mitral valve.

Adults with congenital heart disease undergoing first surgery: prevalence and outcomes at a tertiary hospital.

Introduction: Surgical treatment of congenital heart disease in adults showed a significant growth in recent years. But even so, the number of patients who reach adulthood without adequate surgical treatment remains high.

Objective: To demonstrate the results and hospital diagnoses of adult patients with congenital heart disease underwent the first surgery.

Effects of gamma irradiation on mechanical behavior and calcification of glutaraldehyde-fixed bovine pericardium.

Objective: To evaluate the effect of gamma irradiation on glutaraldehyde-fixed bovine pericardium.

Method: Glutaraldehyde-fixed bovine pericardium was exposed to gamma radiation (doses from 0 to 10000 Gy). Six samples from each of nine groups were evaluated by optic microscopy, and shrinking and mechanical tests and the denaturation temperature was determined.

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.

Valved conduits of bovine pericardium for right ventricle to pulmonary artery connections.

Between February 1991 and October 1994, 29 patients received right heart bovine pericardial valved conduits. Patients' ages ranged from 19 days to 18 years (mean 3.5 years), with 8 patients younger than 1 year of age.

[Clinical manifestation of aortopulmonary window as mitral regurgitation caused by secondary dilatation of the valvar anulus].

Two patients with huge aortopulmonary window, both ten months-old, that showed curiously up at a clinical viewpoint, including echocardiography, as a mitral valve regurgitation with a dilated mitral ring secondary to the accentuated blood volume through it, were reported. Early signs of heart failure, accentuated systolic murmur at mitral area and overload of left heart cavities, characterized clinical impression of a congenital mitral insufficiency, in both cases. The correct diagnosis was established at operation and at necropsy study, bringing it to us the need to a more accurate analysis of the different diagnostic elements, especially in anomalies which clinical manifestations show great similarities.

[Pediatric heart surgery in a general hospital. Procedures and results in a 5 years' experience].

Purpose: To establish the routines for pediatric cardiac surgery in a general hospital, with a view to accurate diagnostic, a more precise intervention, a reduction of the risks and consequently an improvement of the results.

Methods: Three hundred and ninety surgeries were carried out in children with congenital heart disease. The method use highlighted noninvasive diagnosis, joint lodging, reduced period of hospitalization, care with the collection and preservation of blood, as well as the preference for fresh blood, techniques of monitoring, anesthesia, cardiopulmonary bypass and myocardial protection, concern with aesthetic incision for female patients and postoperative critical care.

[Submammary incision for median sternotomy].

Purpose: To evaluate the indications, complications, cosmetic and functional results with submammary skin incision for a median sternotomy in females.

Methods: Two hundred and eighty female patients have undergone submammary skin incision for a median sternotomy between 1981 to 1991 ages ranged from 2 months to 42 years (m = 5 +/- 9 years).

Results: Adequate exposure of the heart was achieved in every case, there were no technical problems, no major complications and the cosmetic and functional results are excellent.

[An extracardiac valved graft in the establishment of continuity between the right ventricle and the pulmonary arteries. The technics and the results of their use in correcting common truncus arteriosus].

Purpose: To evaluate the results of valved extracardiac conduits for establishment of right ventricle pulmonary artery continuity in patients with truncus arteriosus communis.

Methods: between January 1981-January 1991, 15 patients with persistent truncus arteriosus communis underwent surgical repair with valved extracardiac conduits for establishment of right ventricle-pulmonary artery continuity. Mean age was 2 years 9 months and mean weight 9.

Reconstruction of stenotic or nonconfluent pulmonary arteries simultaneously with a Blalock-Taussig shunt.

Stenosis or discontinuity of the pulmonary arteries associated with congenital cardiac defects was repaired in 12 patients, in conjunction with the Blalock-Taussig shunt. This approach was based on the following concepts: (1) The shunted blood is more uniformly distributed to both lungs, which avoids predominance of flow to the ipsilateral lung and long-term pulmonary vascular damage; (2) because adequate blood flow is maintained, the contralateral lung growth will be near normal; (3) the possibility of future surgical correction is enhanced. The ages of the patients ranged from 2 to 24 months.