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Revista argentina de cardiología

versión On-line ISSN 1850-3748


VILLAMIL, Alejandro et al. Atrial Fibrillation in a Patient with a Giant Left Atrial Appendage. Rev. argent. cardiol. [online]. 2007, vol.75, n.1, pp. 61-63. ISSN 1850-3748.

Among sustained arrhythmias, atrial fibrillation is one of the most common causes of patient consultation. Its substrate comprises various mechanisms, including left atrial enlargement. In this report, we present the case of a 33 yearold woman with a history of palpitations, who was admitted to the emergency room due to atrial fibrillation with a rapid ventricular response. In the chest X-ray, the left border of the cardiac silhouette was deformed. Subsequently, both the transesophageal echocardiogram and the magnetic resonance images showed a giant aneurysmal left atrial appendage, probably due to a pericardial defect. Treatment consisted of oral anticoagulation and atenolol, with a favorable patient outcome.

Palabras clave : Giant left atrium; Left atrial appendage aneurysm; Pericardial defects; Atrial fibrillation.

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