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Anatomical variations in the left coronary artery and its branches.
MedLine Citation:
PMID:  23338918     Owner:  NLM     Status:  In-Data-Review    
Introduction: Proficiency in the anatomy of coronary arteries and their variations is important for proper interpretation of coronary angiographies. The left coronary artery (LCA) commonly originates at the level of the left posterior aortic sinus and normally bifurcates into the anterior interventricular artery and circumflex artery. This study aimed to determine the variations in the LCA and its branches. Methods: The study was conducted on 30 heart specimens. We observed the origin, length and branching pattern of the LCA and its coronary dominance. Results: We found a short main LCA trunk in three specimens and a long main LCA trunk in one specimen. In two specimens, the division of the LCA led to three branches. With regard to 'dominance', one specimen showed left dominance while another showed codominance. Conclusion: Variations of the LCA are clinically relevant, especially when a perioperative coronary perfusion or coronary arteriography is performed.
H Mamatha; A S D'Souza; L C Prasanna; V S Bhojaraja; S Suhana
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Singapore medical journal     Volume:  54     ISSN:  0037-5675     ISO Abbreviation:  Singapore Med J     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-01-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0404516     Medline TA:  Singapore Med J     Country:  Singapore    
Other Details:
Languages:  eng     Pagination:  49-52     Citation Subset:  IM    
Department of Anatomy, Kasturba Medical College, Manipal University, Manipal 576104, Karnataka, India.
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