We have experienced a case of Bentall procedure for aortic root redissection a few years after ascending and arch aortic replacement for acute type A aortic dissection with involvement of the aortic root. Although late aortic redissection and false anastomotic aneurysm following the use of gelatin-resorcin-formaldehyde(GRF) glue has been recently reported in several articles, no pathological evidence is available for the potential toxic effects of GRF glue in our patient. We think that Bentall procedure or an aortic valve reimplantation procedure, David procedure, may be considered as one of the strategies for acute type A aortic dissection with involvement of the aortic root because of a high incidence of aortic root redissection and a high mortality of the reoperation.

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　急性大動脈解離に対する術式選択は分類，entry 存在部位など病態により様々で議論があるところである．当科では緊急手術において A 型急性大動脈解離に対し主として上行・部分弓部大動脈置換術を施行してきた．治療戦略と経験に関し検討結果を報告する．

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