Intermediate atrial branch of right coronary artery
Ramus atrialis intermedius arteriae coronariae dextrae
- Related terms: Intermediate atrial branch
Definition
The term "intermediate atrial branch of right coronary artery "is unclear in medical litterature:
It may correspond to the a superior branch of RCA on posterior side of right atrium (1)
Of for others, the intermediate atrial branch of right coronary artery (also called the marginal branch) arises from the acute right margin of the heart, ascends over the anterolateral surface of the RA, and supplies surrounding atrial tissues. In only 13.3% of cases it is the main atrial branch that supplies the sinus node. (2)
References
1 - Dauber W. Lexique illustré d'anatomie Feneis, Médecine-Sciences Flammarion, Paris, 2007.
2 - Boppana VS, Castaño A, Avula UMR, Yamazaki M, Kalifa J. Atrial Coronary Arteries: Anatomy And Atrial Perfusion Territories. J Atr Fibrillation. 2011 Sep 30;4(3):375. doi: 10.4022/jafib.375. PMID: 28496703; PMCID: PMC5153018.
