<abstract xmlns="http://www.w3.org/1999/xhtml"><sec id="j_abm-2019-0010_s_005_w2aab3b7c13b1b6b1aab1c14b1Aa"><h3>Background</h3><p>Anatomic variations in orifices, courses, branching patterns, and abnormalities of coronary arteries could affect blood supply, hemodynamic characteristics, and clinical symptoms, and could be a risk of atherosclerosis.</p></sec><sec id="j_abm-2019-0010_s_006_w2aab3b7c13b1b6b1aab1c14b2Aa"><h3>Objectives</h3><p>To investigate the location and number of both coronary orifices in the aortic cusps, branching patterns of left main trunk, dominant pattern of posterior interventricular artery (PIA), prevalence of right posterior diagonal artery (RPDA), myocardial bridge, and other abnormalities.</p></sec><sec id="j_abm-2019-0010_s_007_w2aab3b7c13b1b6b1aab1c14b3Aa"><h3>Methods</h3><p>We dissected 95 heart specimens from cadavers of Thai donors without the history of surgery, and the dominant patterns, location and number of orifices in the aortic cusps, branching patterns, origin and number of conal arteries, and occurrence of RPDA were determined.</p></sec><sec id="j_abm-2019-0010_s_008_w2aab3b7c13b1b6b1aab1c14b4Aa"><h3>Results</h3><p>Dual aortic origin of the coronary orifice was the most common condition. Anomalous 2 orifices in the left aortic cusp were found in one specimen in which the right coronary artery (RCA) arose from aortic cusp and had an interarterial course. Right dominance and trifurcated form of left main trunk were found more frequently. Most frequently 2 conal arteries were found. RPDA was found in 45% and mostly originated from RCA. The prevalence of myocardial bridge was 62% and located mostly on the anterior interventricular artery (AIA).</p></sec><sec id="j_abm-2019-0010_s_009_w2aab3b7c13b1b6b1aab1c14b5Aa"><h3>Conclusions</h3><p>The prevalence of right dominance, RPDA, the atypical origin of RCA from the left sinus, and the prevalence of myocardial bridges was more frequent than reported by others, whereas the dual aortic origin from both cusps and the prevalence of bifurcated left main trunk was less frequent.</p></sec></abstract>

BackgroundAnatomic variations in orifices, courses, branching patterns, and abnormalities of coronary arteries could affect blood supply, hemodynamic characteristics, and clinical symptoms, and could be a risk of atherosclerosis.ObjectivesTo investigate the location and number of both coronary orifices in the aortic cusps, branching patterns of left main trunk, dominant pattern of posterior interventricular artery (PIA), prevalence of right posterior diagonal artery (RPDA), myocardial bridge, and other abnormalities.MethodsWe dissected 95 heart specimens from cadavers of Thai donors without the history of surgery, and the dominant patterns, location and number of orifices in the aortic cusps, branching patterns, origin and number of conal arteries, and occurrence of RPDA were determined.ResultsDual aortic origin of the coronary orifice was the most common condition. Anomalous 2 orifices in the left aortic cusp were found in one specimen in which the right coronary artery (RCA) arose from aortic cusp and had an interarterial course. Right dominance and trifurcated form of left main trunk were found more frequently. Most frequently 2 conal arteries were found. RPDA was found in 45% and mostly originated from RCA. The prevalence of myocardial bridge was 62% and located mostly on the anterior interventricular artery (AIA).ConclusionsThe prevalence of right dominance, RPDA, the atypical origin of RCA from the left sinus, and the prevalence of myocardial bridges was more frequent than reported by others, whereas the dual aortic origin from both cusps and the prevalence of bifurcated left main trunk was less frequent.

Anatomic variations of coronary arteries: origins, branching patterns, and abnormalities

Asian Biomedicine

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

BackgroundAnatomic variations in orifices, courses, branching patterns, and abnormalities of coronary arteries could affect blood supply, hemodynamic...

Anatomic variations of coronary arteries: origins, branching patterns, and abnormalities

Article Category: Brief communication (original)

Published Online: Sep 20, 2019

Page range: 117 - 123

DOI: https://doi.org/10.1515/abm-2019-0010

Keywords
anatomy, arteries, cardiovascular diseases, coronary vessels, coronary vessel anomalies, myocardial bridging

© 2018 Khwansang and Chentanez, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Anatomic variations of coronary arteries: origins, branching patterns, and abnormalities

Article Category: Brief communication (original)

Published Online: Sep 20, 2019

Page range: 117 - 123

DOI: https://doi.org/10.1515/abm-2019-0010

Keywordsanatomy, arteries, cardiovascular diseases, coronary vessels, coronary vessel anomalies, myocardial bridging

© 2018 Khwansang and Chentanez, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
anatomy, arteries, cardiovascular diseases, coronary vessels, coronary vessel anomalies, myocardial bridging