Obstructive lesions can be left or right sided and occur in isolation or in association with other congenital heart disease lesions. Obstructive lesions sometimes manifest the principle of “no-flow-no-grow” where there is underdevelopment of distal structures due to the complex neurohormonal sequelae of poor blood flow in utero to vascular structures.
Examples of obstructive lesions:
Coarctation of the aorta
Interrupted aortic arch
Pulmonary or aortic stenosis
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