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Ann Thorac Surg. 2013 Nov;96(5):1873-5. doi: 10.1016/j.athoracsur.2013.03.036.

Cystic atrioventricular node tumor excision by minimally invasive surgery.

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1
Department of Cardiac Surgery, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy. Electronic address: lucio.careddu@gmail.com.

Abstract

Cystic tumor in the atrioventricular (AV) node region is a rare cardiac primary tumor that can lead to sudden death. Our patient was a 43-year-old woman who presented with dyspnea and a first-degree AV block seen on electrocardiography. Echocardiography revealed a cystic mass attached to the inferior portion of the interatrial septum. After surgical excision of the mass, placement of a permanent pacemaker was required for complete heart blockage. Histopathologic examination revealed the mass to be a cystic tumor of the AV node region. To our knowledge, this is the first report of this condition diagnosed ante mortem and treated successfully with minimally invasive surgery.

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