Disposition of the sinus node in left-sided juxtaposition of the atrial appendages.
In view of the complex cardiac anomalies frequently associated with left-sided juxtaposition of the atrial appendages the disposition of the sinus node has been studied in 6 of these hearts. While the sulcus terminalis still provides a landmark to the position of the node, the nodes were in an anterior position in all 5 hearts with complete juxtaposition, 2 being inferior to the crista terminalis. The node was in a more normal, lateral position in the sixth case with partial juxtaposition.
D006325:Heart Atria / Q000002:abnormalities; D006330:Heart Defects, Congenital / Q000473:pathology*; D006801:Humans; D012849:Sinoatrial Node / Q000473:pathology*