ArticleSurgical and radiologic anatomy : SRA2021
The behavior of three types of large sinus node arteries with regard to the blood supply of the atrial myocardium.
Article in Surgical and radiologic anatomy : SRA, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed, 3 citations in OpenAlex.
- Rare origin of the sinoatrial node artery: an anatomic report and a brief review of the literature.Anatomical science international · 2025Review
- Sinus node dysfunction after radiofrequency catheter ablation of atrial flutter: A case report.Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc · 2023Article
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Authors and funding
4 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeWe describe angiographic findings of sinus node arteries (SNAs), focusing in the large sinus node artery (LSNA) variants, regarding the blood supply of the SN and atrial myocardium.
methodsWe examined the SN arteries via postmortem angiographic visualization in six hundred hearts derived from victims of various accidents.
resultsThe main stem or a branch of the SNA supplied the right atrium (RA) and part of the interatrial septum (IS) in 32% of cases (Group A), one atrium, the IS and a small part of the other atrium (Group B) in 39% and the entire atrial myocardium (LSNAs) (Group C) in 29%. Forty-two percent (42%) of LSNAs were arising from the anterior part of the right coronary artery (RCA) (type 1), 9% from its intermediate part (type 2) and 49% from the posterolateral portion of the left circumflex artery (LCx) (type 3). Type 2 can be injured by surgical procedures, type 3 by interventional ones, while type 1 is not affected by any. The SN area was supplied in Groups A and B by the main stem of SN arteries in 370 cases (62%) and by branches (Br) in 55 (9%). The 175 cases of group C (29%) were supplied only by branches. The clockwise (40% of cases) and counterclockwise rotations (60%) of the SNA around the superior vena cava, concern surgical procedures.
conclusionThe above findings are essential for every day surgical and interventional procedures.
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