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| {{SI}}
| | #redirect:[[Anomolous origin of the coronary arteries]] |
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| '''Editors in Chief:''' Eli Gelfand, M.D. and C. Michael Gibson, M.S., M.D.; '''Associate Editors in Chief:''' Arnoldas Giedrimas, M.D.
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| ==Overview==
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| The diagnosis of a congenital anomaly in the coronary circulation is often may on coronary angiography, CMR, or CT angiography <ref> Angelini P: Normal and anomalous coronary arteries: definitions and classification. Am Heart J 1989 Feb; 117(2): 418-34.</ref> <ref> Angelini P, Fairchild VD, eds: Coronary Artery Anomalies: A Comprehensive Approach. Lippincott, Williams & Wilkins; 1999. </ref>. Stress testing can be used to evaluate the functional risk of ischemia.
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| ==Specific Anomalies==
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| ===Anomalous Origin of the [[Circumflex Artery]]===
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| *The origin is from the posterior [[aortic sinus]]
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| *Retroaortic course
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| *Posterior AV groove course
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| ===Anomalous [[Right Coronary Artery]]===
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| *Origin from left [[sinus of Valsalva]]
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| *Origin from the [[left anterior descending artery]] ([[LAD]])
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| **Can lead to MI, [[sudden cardiac death]]
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| ===Atypical origin of the Left Coronary Artery===
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| The left coronary artery originates from the [[pulmonary artery]] in the [[Bland-White-Garland syndrome]]. This results in:
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| *Low perfusion pressure
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| *[[Hypoxemia]]
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| *May lead to coronary artery steal, and left to right shunt
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| ===Atypical origin of the [[Left Anterior Descending Artery]] ([[LAD]])===
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| *Aortic root
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| *Right [[sinus of Valsalva]], [[Right Coronary Artery]] ([[RCA]])
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| **LAD course between aorta and PA may result in compression with exercise
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| **This variant is associated with [[Tetralogy of Fallot]]
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| ===Atypical origin of LCx===
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| **Aortic root
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| **R sinus of Valsalva, RCA
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| ***course posterior to L ventricle, generally benign
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| ===[[Tetralogy of Fallot]]===
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| **LAD may originate from RCA, courses across pulmonary outflow tract
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| ===Other Cogential Heart Diseases in which There Can Be An Anomalous Origin of the Coronary Arteries===
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| *[[Transposition of the great arteries]]
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| *[[Double outlet right ventricle]]
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| *[[Truncus arteriosus]]
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| ===[[Myocardial Bridge]]===
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| ==References:==
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| {{reflist|2}}
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| {{Coronary Angiography}}
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| [[Category:Cardiology]]
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| [[Category:Angiopedia]]
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