The clinical anatomy of the sinus node artery. Ann Thorac Surg 2003;76(3):732-5.
Anatomical investigation of sinus node artery using dual-source computed tomography.
The importance of the sinus node artery in blood supply of the atrial myocardium.
Coronary angiography (30[degrees] right anterior oblique, 35[degrees] caudal and 60[degrees] left anterior oblique projections of the left coronary system) demonstrated a rare anatomical variation, in which the sinus node artery had a long course originating from the distal part of the left circumflex artery below or behind the left auricle (Fig.
We describe herein a rare and unusual variation, found in a patient with severe mitral stenosis and left atrial dilatation, in which a posterior sinus node artery originate from the posterior segment of the circumflex artery, coursed postero-superiorly and entered the sinus node from superiorly.