A congenital, localized constriction or narrowing of the aorta resulting in hypertension in the upper body (above the constriction) and low blood pressure in the lower body (below the constriction).
A pressing together or narrowing of a blood vessel, occurring primarily in the aorta.
Constricting or narrowing, especially with reference to a congenital defect of the aorta, which is usually repaired surgically.
A congenital narrowing of a short segment of the aorta. The most common site of coarctation is just beyond the origin of the left subclavian artery from the aorta. This results in high blood pressure (hypertension) in the upper part of the body and arms and low blood pressure in the legs. The defect is corrected surgically.
A reduction in the diameter of a vessel or canal.