Coarctation of the Aorta 1
COARCTATION OF THE AORTA
Coarctation of the Aorta
Coarctation of the Aorta 2
Coarctation of the aorta is defined by Medicine.net as (1996-2007) "a congenital constriction of the aorta, impeding the flow of blood below the level of the constriction and increasing blood pressure above the constriction." It is a defect in the vessel media, which allows a prominent posterior in folding (Shah, 2005, p. 1). This can extend around the entire circumference of the aorta or just effect a portion. "The gross pathology of coarctation varies considerably," (Shah, 2005, p. 1). The lesion can be long, segmental or tortuous. It is commonly found distal to the origin of the left subclavian artery (Shah, 2005, p. 1). The abnormality occurs in embryological development. Coarctation is do to an abnormality in the left fourth and sixth aortic arches that occurs at this stage. This anomaly "can be explained by 2 theories, the ductus tissue theory and......
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