Why the study?
Does balloon dilation technique and valve morphology influence the reduction in valvar gradient and incidence of aortic regurgitation in patients with congenital aortic valve stenosis?
Does balloon dilation technique and valve morphology influence the reduction in valvar gradient and incidence of aortic regurgitation in patients with congenital aortic valve stenosis?
In congenital aortic stenosis, balloon size and technique have less impact on gradient reduction, but a balloon:annulus ratio >100% and unicommissural valve morphology increase the risk of significant aortic regurgitation.
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Supports limiting balloon:annulus ratio to ≤100% to curb regurgitation risk; hypothesis-generating for optimal dilation technique in congenital aortic stenosis.
Sholler et al. (1988) studied this question.
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