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褐色細胞腫はカテコラミンを過剰に産生する腫瘍で,高血圧を主体に多彩な症状を呈し,心筋梗塞,不整脈,心筋症,脳血管障害などの合併症を併発しうる1).全高血圧患者の約0.5%に認め,約10%で両側に発生する2,3).褐色細胞腫に対する治療は手術が第一選択であるが,カテコラミンによる循環器系への影響により,周術期の厳格な血行動態管理を要する.われわれは長期透析患者において両側褐色細胞腫を合併した重症大動脈弁狭窄症(AS)の症例を経験した.調べた範囲では,透析患者に両側褐色細胞腫およびASを合併した症例はなかったので,文献的考察を加え報告する.
We report a case of a dialysis patient with severe aortic stenosis (AS) along with bilateral pheochromocytomas. A 52-year-old man presented with syncope and was diagnosed with severe AS. Although aortic valve replacement (AVR) was scheduled, bilateral pheochromocytomas were found during preoperative examination. There was a high possibility of developing hemodynamical crisis during AVR, and we planned to perform adrenalectomy prior to AVR. To avoid circulatory collapse just after adrenalectomy, balloon aortic valvuloplasty (BAV) was performed beforehand. Two weeks after the adrenalectomy, AVR was performed in a stable condition.
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