Uncommon Presentations of Type A Quadricuspid Aortic Valve in the Septuagenarian
Perry Choi,
Michael Paulsen,
Yihan Lin
et al.
Abstract:Background:
Quadricuspid aortic valve (QAV) is a rare congenital anomaly characterized by the presence of four cusps instead of the usual three. It is estimated to occur in less than 0.05% of the population, with Type A (four equal-sized leaflets) accounting for roughly 30% of QAV subtypes. Based on limited clinical series, the usual presentation is progressive aortic valve regurgitation (AR) with symptoms occurring in the fourth to sixth decade of life. Severe aortic valve stenosis (AS) and acute AR are very … Show more
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