Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Posterior descending artery
Introduction
Overview
Overview
The posterior interventricular artery (PIV), or posterior descending artery (PDA), is an artery running in the posterior interventricular sulcus to the apex of the heart where it meets with the anterior interventricular artery. It supplies the posterior one third of the interventricular septum. The remaining anterior two thirds is supplied by the anterior interventricular artery which is a septal branch of the left anterior descending artery, which is a branch of left coronary artery.
It is typically a branch of the right coronary artery (70%, known as right dominance). Alternatively, the PIV can be a branch of the circumflex coronary artery (10%, known as left dominance) which itself is a branch of the left coronary artery. It can also be supplied by an anastomosis of the left and right coronary artery (20%, known as co-dominance).[1] Variants have been reported.[2]
References
References
- ↑ Fuster, V (2001). Hurst’s The Heart (10th ed.). McGraw-Hill. p. 53. ISBN 0-07-135694-0. Unknown parameter
|coauthors=ignored (help) - ↑ Topaz O, Holdaway B, Bailey NT, Vetrovec GW (1997). “Anatomic variant of the posterior interventricular coronary artery: implications for coronary angioplasty in acute myocardial infarction”. Clin Anat. 10 (5): 303–6. doi:10.1002/(SICI)1098-2353(1997)10:5<303::AID-CA2>3.0.CO;2-R. PMID 9283726.
Additional images
Additional images
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Template:Infobox Artery