title: Novel three-sinus enlargement technique for supravalvular aortic stenosis without aortic transection.
abstract: BACKGROUND
  Although repair of a supravalvular aortic stenosis (SVAS) can be performed with low mortality rates, surgery for the complex form of SVAS continues to be associated with a high incidence of residual stenosis.
  
  
  METHODS
  The patient was referred to our hospital at 1 month of age and was diagnosed with aortic valve stenosis (AS) by using echocardiography. Cardiac catheterization revealed moderate AS, and subsequent left ventriculography revealed discrete stenosis of the sino-tubular junction and a narrowed proximal ascending aorta. We performed a reconstructive operation for such heart defects involving novel three-sinus and ascending aorta enlargement without aortic root transection in a 6-month-old boy.
  
  
  CONCLUSIONS
  Our novel three-sinus enlargement technique is suitable for treating each type of SVAS and is a useful method for a baby particularly less than 10 kg without disturbing the growth of the ascending aorta.
authors.affiliation: Department of Cardiovascular Surgery, Kinki University School of Medicine Nara Hospital, 1248-1, Otoda-cho, Ikoma, Nara, 630-0293, Japan. Yocky2001@aol.com.
authors.forename: Shinya
authors.initials: S
authors.lastname: Yokoyama
authors.affiliation: Department of Cardiovascular Surgery, Kinki University School of Medicine Nara Hospital, 1248-1, Otoda-cho, Ikoma, Nara, 630-0293, Japan.
authors.forename: Hisao
authors.initials: H
authors.lastname: Nagato
authors.affiliation: Department of Cardiovascular Surgery, Kinki University School of Medicine Nara Hospital, 1248-1, Otoda-cho, Ikoma, Nara, 630-0293, Japan.
authors.forename: Yuichi
authors.initials: Y
authors.lastname: Yoshida
authors.affiliation: Department of Cardiovascular Surgery, Kinki University School of Medicine Nara Hospital, 1248-1, Otoda-cho, Ikoma, Nara, 630-0293, Japan.
authors.forename: Shigeo
authors.initials: S
authors.lastname: Nagasaka
authors.affiliation: Department of Cardiovascular Surgery, Kinki University School of Medicine Nara Hospital, 1248-1, Otoda-cho, Ikoma, Nara, 630-0293, Japan.
authors.forename: Kozo
authors.initials: K
authors.lastname: Kaneda
authors.affiliation: Department of Cardiovascular Surgery, Kinki University School of Medicine Nara Hospital, 1248-1, Otoda-cho, Ikoma, Nara, 630-0293, Japan.
authors.forename: Noboru
authors.initials: N
authors.lastname: Nishiwaki
mesh_terms: D001011:Aorta / Q000601:surgery*; D021921:Aortic Stenosis, Supravalvular / Q000175:diagnosis / Q000601:surgery*; D006801:Humans; D007223:Infant; D008297:Male; D012850:Sinus of Valsalva / Q000601:surgery*