A Case of Cholesterol Crystal Embolism after Endovascular Aortic Repair for AAA

DOI 2 References
  • Okamoto Masahiko
    Department of Cardiovascular Surgery, National Hospital Organization Tokyo Medical Center
  • Nagumo Masashi
    Department of Cardiovascular Surgery, National Hospital Organization Tokyo Medical Center
  • Goto Testuya
    Department of Cardiovascular Surgery, National Hospital Organization Tokyo Medical Center
  • Yoshitake Akihiro
    Department of Cardiovascular Surgery, National Hospital Organization Tokyo Medical Center
  • Miki Takahisa
    Department of Cardiovascular Surgery, National Hospital Organization Tokyo Medical Center
  • Osumi Koji
    Department of Surgery, National Hospital Organization Tokyo Medical Center

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Other Title
  • 腹部大動脈瘤ステントグラフト内挿術後に発症したコレステロール塞栓症の１例

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We report a case of cholesterol crystal embolism (CCE) after endovascular aortic repair for abdominal aortic aneurysm (AAA). A 68-year-old man with AAA underwent endovascular aortic repair. He complained of left lower abdominal pain after the operation. Abdominal CT showed renal infarction on postoperative day 10. Renal dysfunction developed after postoperative day 17. A biopsy of the renal infarct lesion demonstrated characteristic cholesterol clefts in the small arteries. We diagnosed CCE. Steroid therapy was administered and the patient's condition improved remarkably. Diagnosis of CCE is difficult and its prognosis still remains poor. Therefore, we should keep this unusual complication in mind.

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