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International Journal of Morphology

On-line version ISSN 0717-9502


YERI, Luis A; GOMEZ, Jorge E; FONTANETO, Sergio  and  ESPOSITO, Marcia. Variation of the Origin of Aortic Arch Branches: In Relationship with Plates of Atheroma. Int. J. Morphol. [online]. 2011, vol.29, n.1, pp.182-186. ISSN 0717-9502.

The aortic arch branches variations have called the attention of several authors, who have handled studies and classifications, both human and in different animals. The common trunk, which is between the brachiocephalic trunk and the common left carotid artery, is the most common variation. We conducted a descriptive and randomized study of the presence of the trunk mentioned before, trying to establish the possible relationship between this variation and the distribution plates of atheroma. The lumen observation makes it possible to define and check the distribution of the ostium, among the common ostium and the ones with common trunks. Regarding the plates of atheroma, it was found that there is a slight prevalence in common trunks cases, with respect to the classics (no variety) or the ones who had common ostium. In all cases, the presence of a plaque in the distal aortic arch was certified near the left subclavian artery. The knowledge of the existence of the common trunk sets up an act of academic interest, as practice interventions and diagnostic imaging and clinical work, since the presence of the common trunk might be related to the prevalence of the plates of atheroma at the level of its origin.

Keywords : Aortic arch; Atheroma; Variations of the aortic arch branches.

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