Coronary artery dominance: Difference between revisions
Jump to navigation
Jump to search
m Robot: Automated text replacement (-{{WikiDoc Cardiology Network Infobox}} +, -<references /> +{{reflist|2}}, -{{reflist}} +{{reflist|2}}) |
No edit summary |
||
| Line 1: | Line 1: | ||
__NOTOC__ | |||
{{SI}} | {{SI}} | ||
{{CMG}} | |||
==Coronary Artery Dominance== | ==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 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.<ref name="pmid15929526">{{cite journal |author=Kaimkhani ZA, Ali MM, Faruqi AM |title=Pattern of coronary arterial distribution and its relation to coronary artery diameter |journal=Journal of Ayub Medical College, Abbottabad : JAMC |volume=17 |issue=1 |pages=40-3 |year=2005 |pmid=15929526 |doi=}}</ref> | |||
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). | 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). | ||
Revision as of 23:02, 25 August 2013
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
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 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.