Coronary artery dominance: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
Rim Halaby (talk | contribs) No edit summary |
||
Line 1: | Line 1: | ||
__NOTOC__ | __NOTOC__ | ||
{{SI}} | {{SI}} | ||
{{CMG}} | {{CMG}} | ||
==Overview== | |||
==Coronary Artery Dominance== | ==Coronary Artery Dominance== | ||
*The dominance of coronary circulation is determined by the type of arteries that supply the posterior and inferior wall of the left ventricle. | *The dominance of coronary circulation is determined by the type of arteries that supply the posterior and inferior wall of the left ventricle. | ||
*The artery that supplies the [[posterior descending artery]] (PDA) and the [[posterolateral artery]] (PLA) determines the coronary dominance. | *The artery that supplies the [[posterior descending artery]] (PDA) and the [[posterolateral artery]] (PLA) determines the coronary dominance. | ||
Line 34: | Line 31: | ||
This occurs when all three branches arise from the CX. | This occurs when all three branches arise from the CX. | ||
==References== | |||
{{Reflist|2}} | |||
{{Arteries of chest}} | |||
{{Coronary Angiography}} | |||
[[Category:Cardiovascular system]] | |||
[[Category:Cardiac anatomy]] | |||
[[Category:Cardiology]] | [[Category:Cardiology]] | ||
[[Category: | [[Category:Arteries]] | ||
[[Category:Anatomy]] | |||
[[Category:Angiopedia]] | |||
{{WikiDoc Help Menu}} | {{WikiDoc Help Menu}} | ||
{{WikiDoc Sources}} | {{WikiDoc Sources}} |
Revision as of 18:34, 27 August 2013
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Coronary Artery Dominance
- The dominance of coronary circulation is determined by the type of arteries that supply the posterior and inferior wall of the left ventricle.
- The artery that supplies the posterior descending artery (PDA) and the posterolateral artery (PLA) determines the coronary dominance.
- Right-dominant circulation: The right coronary artery (RCA) supplies both these arteries.
- Left-dominant circulation: The circumflex artery (CX), a branch of the left artery, supplies both these arteries.
- Co-dominant circulation: The RCA supplies the PDA and the CX supplies the PLA.
- Approximately 60% of the general population are right-dominant, 25% are co-dominant, and 15% are left-dominant.[1]
Describes how many of the three major branches supplying the inferior wall of the heart arise from the right coronary artery (RCA) and how many arise from the circumflex artery (CX).
Large right dominant
This occurs when the descending, inferior, and posterior branches all arise from the RCA.
Small right dominant
This occurs when the descending and inferior branches arise from the RCA and the posterior branch arises from the CX.
Co-dominant
This occurs when only the descending branch arises from the RCA, while the inferior and posterior branches arise from the CX.
Left dominant
This occurs when all three branches arise from the CX.