だい動脈 どうみゃく べん閉鎖 へいさ不全 ふぜん しょうではありませんでした
daidōmyakube n'e isa fuzen shōdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 大動脈弁閉鎖不全症

1. Was not aortic valve insufficiency.; Was not a case of aortic valve insufficiency.

Past/Perfective
Negative
Polite
Formal Register
Medicine