title: Reply to the editor.
authors.forename: Susumu
authors.initials: S
authors.lastname: Manabe
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Kasegawa
mesh_terms: D001011:Aorta / Q000033:anatomy & histology*; D006801:Humans; D008943:Mitral Valve / Q000033:anatomy & histology* / Q000503:physiopathology*; D008944:Mitral Valve Insufficiency / Q000601:surgery*; D011183:Postoperative Complications / Q000209:etiology*