Incidence of 2.3% for overt clinical presentation & up to 60% when sensitive magnetic resonance imaging is applied in heart surgery of infants & children.
In control of the arch proximal to the left carotid artery, during COA surgery, this assumes that collateral blood flow and completeness of the circle of Willis allows for a favorable and even distribution of cerebral blood flow.
But patients undergoing coarctation repair, proximal occlusion of the aortic arch results in transient but significant impairment in contralateral cerebral oxygen balance
Blood Supply to Spinal Cord The most important blood supply to spinal cord comes from spinal artery, a minor supply is from Adamkiewicz artery
The role of balloon dilatation is controversial because of early restenosis, the need for multiple interventions, potential limb ischemia, and the increased risk of aneurysm formation
The mechanism for early restenosis in neonates may be related to multiple factors including ductal tissue constriction or recoil, isthmus hypoplasia, intimal hyperplasia as a result of smooth muscle cell proliferation, and matrix protein production with arterial remodeling are involved in restenosis