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Brazilian Journal of Cardiovascular Surgery

Print version ISSN 0102-7638On-line version ISSN 1678-9741


BUENO, Ronaldo Machado et al. Defect of the posterior mitral fibrous ring with left atrial aneurysm and mitral insufficiency: successful surgical treatment. Rev Bras Cir Cardiovasc [online]. 1999, vol.14, n.4, pp.348-354. ISSN 1678-9741.

Atrial aneurysm is a rare condition and can be found on the atrial appendage or on the atrial wall. Most patients are asymptomatic, but arrhythmias, thromboembolism, and heart failure are common complications. We present a 39 years old female patient with posterior mitral ring defect causing a great aneurysm of the left posterior atrial wall with mitral insufficiency. The diagnosis was achieved by chest roentgenogram (marked prominence of the upper left heart border) and echocardiography (great left atrial aneurysm behind the left posterior ventricular wall with mitral insufficiency). Left ventricular cineangiogram suggested the presence of a false aneurysm of the left ventricle. The patient subsequently underwent surgical treatment with cardiopulmonary bypass. Posterior mitral valve annuloplasty was performed with aneurysm exclusion and posterior left atrial wall reconstruction using a bovine pericardial patch. The postoperative course was uneventful, and the patient was discharged sympton-free on the eighth postoperative day.

Keywords : Heart aneurysm [congenital]; Heart aneurysm [surgery]; Mitral valve insufficiency [surgery]; Heart atrium; Heart valve [surgery].

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