山梨医科大学雑誌　第5巻1号　075-078(1990)

A Rare Case of Congenital Downward Displacement of Right Aortic
Annulus Resulting in Severe Aortic Regurgitation

Tetsunosuke MATSUKAWA, Shinpei YOSHII, Ryoichi HASHIMOTO, Tatsuro MAEDA,
Tetsuyo YOSFlIZAKI, Koji TAMURA, and Akira UENO

Abstract: Isolated congenital aortic regurgitation in the three-cusped aortic valve is extremely rare. A 45-year-old man underwent successful aortic valve replacement for severe aortic regurgitation, resulting from the downward displacement of the right aortic annulus with a hypoplastic cusp, which originated from the interventricular septum. Its origin was considered to be congential because of its anatomical rarity.

Key words: ownward displacement, aortic annulus, congenital, aortic regurgitation




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