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はじめに Stanford A型大動脈解離手術時のエレファントトランク法(ET法)は1),全弓部大動脈置換(TAR)時に人工血管を遠位側真腔内に挿入する方法である.われわれは,ET法施行後遠隔期にET遠位部に狭窄をきたし,胸部ステントグラフト挿入術(TEVAR)で治療した症例を経験したので報告する.
A 49-year-old man was admitted to our hospital because of intermittent claudication and refractory hypertension 10 years after surgery to Stanford type A acute aortic dissection. He underwent total arch replacement with an elephant trunk of 22 mm in diameter. Transesophageal echocardiography revealed that distal end of the elephant trunk was stenosed. Systolic blood pressure gradient over this portion reached to more than 100 mmHg. Folding of elephant trunk and thrombus formation were considered to be the cause. Thoracic endovascular aortic repair relieved stenosis and intermittent claudication, and enabled better blood pressure control.
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