Right posterior sinoatrial node artery showing a pericaval course: a previously undescribed mode of termination.

Surgical and Radiologic Anatomy : SRA
Andreas Yiangou AndreouPanayiotis C Avraamides

Abstract

The left posterior sinus node artery (PSNA) originates from the posterolateral left circumflex artery, is quite common and shows more frequently a retrocaval mode of termination. In contrast, the right PSNA that arises from the terminal right coronary artery has been rarely described while information on its mode of termination is generally lacking. The PSNA courses close to the ostia of the superior pulmonary veins; hence, it may get injured during surgical or catheter ablation procedures performed for the treatment of atrial fibrillation. The left PSNA terminates retrocavally more frequently than the usual SNAs; hence, it may be at a greater risk of transection during the popular superior septal approach to the mitral valve. We present a case of right PSNA which terminated in a previously unreported course, i.e., the pericaval. Discussion pertains to the anatomic features of the PSNA that render it susceptible to the aforementioned complications.

References

Aug 1, 1984·International Journal of Cardiology·J BusquetM J Davies
Oct 23, 1997·European Journal of Cardio-thoracic Surgery : Official Journal of the European Association for Cardio-thoracic Surgery·M TakeshitaH Kubota
Mar 24, 1998·Clinical Anatomy : Official Journal of the American Association of Clinical Anatomists & the British Association of Clinical Anatomists·S TanakaI H Chung
Feb 1, 2003·Advances in Anatomy, Embryology, and Cell Biology·M von Lüdinghausen
Sep 10, 2003·The Annals of Thoracic Surgery·Denis BerdajsMarko I Turina
Dec 3, 2003·European Journal of Cardio-thoracic Surgery : Official Journal of the European Association for Cardio-thoracic Surgery·Ovidio A García-VillarrealHéctor D Martínez-Chapa
Dec 13, 2006·European Journal of Cardio-thoracic Surgery : Official Journal of the European Association for Cardio-thoracic Surgery·Kwan Chang KimKi-Bong Kim
May 22, 2008·AJR. American Journal of Roentgenology·Farhood SaremiJeffrey C Milliken

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