The aim of this study was to define the anatomic characteristics of the principal arterial source of the atrioventricular node, known as the artery of the atrioventricular node. Forty hearts were studied by various anatomic and radiologic methods: dissection, injection-dissection, injection-corrosion and injection-radiography, but only 23 results were interpretable. The right coronary artery represented the commonest arterial source of the atrioventricular node (21/23 hearts) but numerous variations in the origin and topography of the nodal artery were found.

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Intraoperative stenting of BPA is a safe and effective option to treat BPA stenosis and prevent recurrence.

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