重症多発性動脈炎(PAN)による重症四肢虚血の症例
Linn Renken1, Caroline Zollinger-Read1, Annabel Coote1
1Rheumatology, Doncaster Royal Infirmary, Doncaster, GBR.
Cureus
|December 22, 2025
まとめ
多発性動脈炎(PAN)は稀な血管炎である。本症例報告は、重症四肢虚血、多臓器梗塞を呈し、免疫抑制剤と抗凝固療法で治療に成功した攻撃的なPANの症例を詳述する。
科学分野:
- リウマチ学
- 血管医学
- 症例報告
背景:
- 多発性動脈炎(PAN)は、中小型動脈を侵す全身性血管炎である。重症四肢虚血は、PANの稀ではあるが重篤な合併症である。
研究 の 目的:
- 広範な臓器関与を伴う攻撃的な全身性PANの症例を報告する。重症四肢虚血を呈するPANの診断上の課題と治療戦略を強調する。
主な方法:
- 全身症状、皮膚病変、精巣炎を呈した64歳男性の症例報告。臨床症状、血管造影およびCTを含む診断ワークアップ、治療経過を記録した。治療には、高用量コルチコステロイド、シクロホスファミド、静脈内免疫グロブリン、ヘパリンが含まれた。
主要な成果:
- 患者は右下肢の重症虚血を発症し、切断が必要となった。また、単神経炎および筋炎も認められた。全身的には脾臓、腎臓、心筋、橋の梗塞、および尺骨動脈閉塞を伴った。攻撃的な免疫抑制療法および抗凝固療法により、C反応性タンパクレベルは著しく低下した。
結論:
- PANは、重症四肢虚血を含む広範な臓器障害を伴って攻撃的に発症することがある。重症PANの兆候を管理するには、迅速な診断と多面的な治療が不可欠である。本症例は、原因不明の全身性炎症および血管イベントを有する患者において、PANを考慮することの重要性を強調する。
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