Coarctation of the aorta is narrowing of the aorta at, or distal to, the origin of the left subclavian artery at the insertion of the ductus arteriosus.
As a result of the severe narrowing of the aorta a collateral circulation is encouraged which involves the periscapular and intercostal arteries. There may be a decreased renal perfusion which can lead to the development of systemic hypertension which may persist despite surgical intervention.
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