Arterial vascularisation of the atrioventricular node

The aim of this study was to define the anatomic characteristics of the pri ncipal arterial source of the atrioventricular node, known as the artery of the atrioventricular node. Forty hearts were studied by various anatomic a nd radiologic methods: dissection, injection-dissection, injection-corrosio n and injection-radiography, but only 23 results were interpretable. The ri ght coronary artery represented the commonest arterial source of the atriov entricular node (21/23 hearts) but numerous variations in the origin and to pography of the nodal artery were found.