bicuspid aortic valve
A congenital malformation where the aortic valve has two leaflets instead of the normal three.
Full Definition
Bicuspid aortic valve (BAV) is the most common congenital heart defect, affecting 1-2% of the population, where the aortic valve has two leaflets instead of the normal three cusps. This malformation is frequently associated with aortopathy, including aortic root and ascending aortic dilatation, which may require surgical intervention even in the presence of normal valve function. BAV patients require lifelong surveillance for both valve dysfunction and aortic complications, with specific guidelines for timing of surgical intervention based on aortic dimensions and valve function.
Usage
Usage note: Often abbreviated as BAV; associated with increased risk of aortopathy.
In Context
- "The patient with bicuspid aortic valve developed severe stenosis requiring surgical replacement." — Pre-operative note
- "Annual surveillance imaging is recommended for all bicuspid aortic valve patients to monitor aortic dimensions." — Cardiology consultation