Tohoku J. Exp. Med., 1998, 184 (4)

Replacement of the Ascending Aorta and Aortic Valve with a Composite Graft: Operative and Long-Term Results

KOICHI TABAYASHI, TAKAO FUKUJYU, YUSUKE TURU, MITUAKI SADAHIRO, TOSHIAKI KONNAI, NAOKI UCHIDA, MIKIO OHMI and YOSHIHITO SEKINO1

Department of Thoracic and Cardiovascular Surgery, Tohoku University School of Medicine, Sendai 980-8574, and 1Saka Hospital, Shiogama 985-8506

  • The purpose of this study is to analyze our treatment experience on patients with ascending aortic aneurysms, with aortic regurgitation. From January 1974 to December 1995, 49 patients underwent replacement of the aortic valve and ascending aorta with a composite graft, in which primary operation cases were 44 and reoperation ones were 5. The Bentall technique was used in 20 patients, the button technique in 11, the interposition graft technique in 11, and a combination of the interposition graft and button technique in 7. All but one reoperation cases underwent the interposition graft technique. Hospital mortality was 30% for the Bentall technique, and 9.1% for the button technique and 9.1% for the interposition graft technique; there was no hospital mortality in the combination of the interposition graft and button technique. Hospital mortality of interposition graft technique in primary operation cases was 9.1%, and that in reoperation cases was 0%. Hospital mortality in patients underwent from 1974 to 1985 was 30.8%, 27.8% from 1986 to 1991, and 0% from 1992 to 1995. Five late deaths occurred in the Bentall group (35.7%) and one late death in the button technique (9.1%). No late deaths in the other groups have occurred. In summary, operative mortality in Bentall technique group was higher than that of the other groups. Operative results were improved by the change of operative methods. The interposition graft technique is preferable for patients undergoing reoperation or when tension on the ostial anastomoses may occur. The button technique is best for patients with aortic dissection or inflammation involving the coronary ostia.
    Key words--- Bentall technique; interposition graft technique; button technique; combination of the interposition and button technique
    © 1998 Tohoku University Medical Press

    Tohoku J. Exp. Med., 1998, 184, 257-266
    Address for reprints: Koichi Tabayashi, Department of Thoracic and Cardiovascular Surgery, Tohoku University School of Medicine, 1-1 Seiryomachi, Aoba-ku, Sendai 980-8574, Japan.

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