coarctation of the aortamedical dictionary

<cardiology, embryology, paediatrics> A congenital heart defect that results in the narrowing of the lumen of the aorta.

The narrowing occurs most often distal to the origin of the left subclavian artery. Coarctation occurs in approximately 7% of patients with congenital heart disease and is twice as common in males. Surgical correction is most often required.

Symptoms include headaches, dizziness, fainting, nosebleeds, diminished pulses in lower extremities and muscle cramps in legs with activity. There may be no symptoms in some individuals.

(27 Sep 1997)

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