Search PubMed⌕ Search

Biomedical subjects

L Vouga

Publications and source records attributed to L Vouga.

6 recordsLinked to original sources
PubMed1996

Intrapericardial paraganglioma.

We describe the case of an intrapericardial pheochromocytoma located in the anterior surface of the heart and spreading over the pulmonary trunk. Under cardiopulmonary bypass (CPB) the tumor was removed. "En bloc" resection of the anterior wall of the right ventricular infundibulum and the pulmonary trunk was performed, with implantation of a fresh aortic homograft in the pulmonary position to avoid free pulmonary regurgitation.

Adult↗
PubMed1991

[Valve replacement with Macchi prosthesis].

OBJECTIVE: to evaluate the performance of a new ball valve prosthesis. DESIGN: set up of two groups of patients who underwent mitral valve replacement with two different prosthesis: the Macchi prosthesis under evaluation and the well known Starr-Edwards model prosthesis. The chi-square test was used to compare the results. PATIENTS: Patients referred for valvular surgery. INTERVENTIONS: One group of 98 consecutive patients who underwent isolated mitral valve replacement with a Macchi prosthesis from January 1984 to June 30 1986 was compared to a matched group of 49 patients who received a Starr-Edwards prosthesis in the same period of time. Follow-up data were available from 99% patients in the Macchi group 96% in the Starr-Edwards group, with a mean follow-up time of 35.2 (2-57) and 42.9 (4-62) months, respectively. RESULTS: There was no statistical difference in the incidence per 100 patients--month of prosthetic complications--thromboembolism, hemorrhagic events, prosthetic endocarditis, reoperation and mechanical failure. CONCLUSIONS: In our experience and with the available follow-up data the Macchi prosthesis is a good cost effective option when there is indication for a ball valve prosthesis.

Adult↗
PubMed1990

Liposarcoma of the heart. A case report.

The authors report a tumor of the heart in a 33-year-old man. Preoperative diagnosis was of a cardiac myxoma. Upon operation, the tumor was revealed to arise from the right atrial free wall, occupying most of the atrial and ventricular cavities and causing a noticeable enlargement and obstruction of the tricuspid valve as well as the mentioned cardiac chambers. A smaller part of the tumor was placed on the outside of the right atrial wall, and implants of the tumor in the distal part of the aorta, extending backward to the bifurcation of the pulmonary artery and its branches, were also observed. Histological examination showed a myxoid-type tumor with light and ultrastructural features of liposarcoma. The patient died 13 months after surgery with regional extension of the tumor.

Adult↗
PubMedDate not supplied

[Two-years experience with the use of radial artery in coronary revascularization surgery].

INTRODUCTION: Among several other factors, in coronary surgery the results depend on the quality and durability of the grafts. Revascularization employing arterial conduits, namely the radial artery, has been playing a growing role, with the aim of replacing the autologous saphenous vein. The benefits and risks of this strategy is still a matter of controversy. The goal of the present study was the evaluation of the incidence of early complications related to the use of radial artery in the revascularization surgery of the myocardium. METHODS: A series of consecutive patients who underwent coronary revascularization surgery in the CHVNGaia using radial artery, from January 2000 to December 2001, was retrospectively analyzed. Data were obtained through the revision of the clinical charts and hospital database. The major end-point assessed was the 30-day or intra hospital postoperative death; furthermore, acute myocardial infarction, stroke, renal failure, prolonged ventilation and reoperations for acute graft occlusion, bleeding and mediastistinitis were also evaluated. RESULTS: During that period of time, 656 patients underwent coronary revascularization surgery, but the radial artery was used in only 230 (35%). Mean age was 60.2+/- 9.1 years and 42 (18.3%) were female. Two hundred and four patients (88.6%) were operated on under extracorporeal circulation. The average number of grafts was 2.6+/- 0.6 per patient. Mean duration of orotraqueal intubation was 2.4 +/- 6 hours. Thirty patients (14,3 %) developed atrial fibrillation and ten (4.3%) had postoperative bleeding. Perioperative myocardial infarction occurred in five cases (2.2%). Two patients (0.8%) underwent reoperation for mediastinitis and one patient (0.4%) was reoperated on for acute occlusion of the graft. The overall postoperative mortality was 1.3% (3 patients). CONCLUSION: The use of radial artery in coronary revascularization did not caused morbidity and mortality, out of the usual context of coronary surgery. The results of our experience suggest that radial artery can be successfully used in myocardial revascularization surgery, enlarging the possibilities of utilization of arterial autografts.

Female↗