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Fetopathology and developmental pathology of the embryo and fetus
Marta Ježová, Josef Feit et al.
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Aortic stenosis
Classification

Aortic stenosis leads to left heart failure, the severity of the symptoms and the age of presentation depend on the severity of the stenosis

  • valvular: at the site of the semilunar valve
    • bicuspid aortic valve: very common malformation, asymptomatic until late adulthood; the bicuspid valve wears sooner, stenosis and its symptomes appear due to degenerative changes at about the age of 60
    • at unicuspid valve the stenosis is usually symptomatic in early childhood
  • subvalvular: stenosis in the left ventricular outflow tract
  • supravalvular: stenosis of the ascending aorta above the valve lunules; also in a form of the entire aortic arch hypoplasia
Pictures

Bicuspid aorta valve at trisomy 18, perimembranous septum defect: Bicuspic aortic valve, trisomy 18, Macro, autopsy (72046)

Stenotic aorta, newborn: Aortic stenosis, newborn, Macro, autopsy (74343) Aortic stenosis, newborn, Macro, autopsy (74344) Aortic stenosis, newborn, Macro, autopsy (74345) Aortic stenosis, newborn, Macro, autopsy (74346) Aortic stenosis, newborn, Macro, autopsy (74347)

Aortic atresia: see The hypoplastic left heart syndrome