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はじめに 胸部ステントグラフト内挿術(TEVAR)は2008年に胸部大動脈瘤に対して保険償還されて以降,急速に普及している.しかし,弓部大動脈瘤に関しては頭頸部分枝の存在を考慮しなければならず,全例に対してステントグラフト治療を行うのは困難である.われわれは,2デブランチTEVARを施行した弓部大動脈瘤の破裂例で,外来経過観察中にタイプⅠaエンドリークに伴う再破裂を起こしたため,開胸下での部分弓部置換術を施行し,経過良好な症例を経験したので報告する.
A 67-year-old male was admitted to our hospital for sudden onset chest pain and hoarseness. He underwent 2-debranching thoracic endovascular aortic repair for a ruptured aortic arch aneurysm four years prior. However, computed tomography (CT) revealed an aneurysmal rerupture due to a typeⅠa endoleak. We performed partial arch replacement with uncovered stent removal under intermittent hypothermic circulatory arrest. We needed to be more careful than usual open heart surgery because a non-anatomical bypass procedure was performed. The surgery was successful without any major complications, and the patient was discharged on the 23th postoperative day. Reinterventions post-endovascular repair are sometimes difficult;thus, open surgery could be useful for arch replacement.
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