OBSTRUCTIVE LESIONS
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25% of CHD
cyanosis is not present because lack of systemic and pulmonary communication precludes mixing of oxygenated and unoxygenated blood
pressure gradient across stenotic/atretic region leads to ventricular hypertrophy as well as “jet lesions” downstream of stenosis due to post-stenotic turbulent flow
examples
aortic coarctation
aortic stenosis; aortic atresia (complete obliteration)
hypoplastic left heart syndrome
bicuspid aortic valve with stenosis
pulmonary valve stenosis/atresia
Category: Pathology Notes
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