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Biomedical subjects

Samuel Mendes

Publications and source records attributed to Samuel Mendes.

2 recordsLinked to original sources

[Reoperation in mitral valve reconstructive surgery].

UNLABELLED: In the past few years reconstructive surgery of the mitral valve has experienced a growing popularity. It is now clearly established that restoration of a normal function valve is preferable to valve replacement. The authors report the results of the mitral valve reconstructive surgery in a population of 701 patients with high incidence of restrictive lesions of rheumatic fever. This represents an experience of 14 years. 5.1% of patients who underwent mitral valvuloplasty required late reoperation for recurrent mitral valve dysfunction. Repeat mitral valve repair resulted in successful treatment for 40% of these patients. CONCLUSION: The mitral valve repair failure are: 1--Procedure related: (58.1%); a--surgical technical related--35.8%; b--no ring implantation (in restrictive lesions)--15%; c-rupture of previously chordae shortened--7.4%. 2--Valve related: (41.9%); a--progressive primary valve disease--(25.4%); b--wrong surgical indication--(15%); c--endocarditis--(1.5%).

Adolescent↗

[Cardiac papillary fibroelastoma].

Cardiac papillary fibroelastoma is a rare and histologically benign tumor. It is the most common valvular tumor and preferentially is found in the aortic valve (44% of the cases). They are typically smaller than 1 cm in diameter, and are characterized by having a fibrous core with elastic fibers, connective tissue and an endothelial lining. Papillary fibroelastoma are typically diagnosed incidentally during TEE. Tumor or thrombus embolizations may lead to severe complications such as stroke, myocardial infarction or even sudden death. In patients with the preoperative diagnosis of papillary fibroelastoma in addition to histories of cardiovascular and cerebrovascular injury require surgical resection to reduce the risk of future embolizations. The authors present two clinical cases of cardiac papillary fibroelastoma who were operated on in the Cardiothoracic Department from 2005 to 2006.

Heart Neoplasms↗