マイクロスポリディアル結膜炎の管理における課題:再発性感染症と環境汚染

Aakash Sharma¹, Smruti Rekha Priyadarshini², Srikant Kumar Sahu¹

¹Cornea and Anterior Segment Services, LV Prasad Eye Institute, Bhubaneswar, Odisha, India.

BMJ case reports

|August 31, 2025

まとめ

汚染された水によって引き起こされた角膜の微小胞体感染症は,若い男性に視力を失わせました. 汚染された水源を避けたことで眼の損傷や症状は治りました

科学分野:

眼科について
感染症
微生物学

背景:

静脈性角膜炎 (VKC) は,子供や若年における一般的なアレルギー性眼疾患である.
ステロイド反応者は,コルチコステロイドの使用に反応して眼内圧が上昇する個体です.
マイクロスポリディアは,眼感染症を含む様々な感染症を引き起こす可能性のある,オポルトニスティックな細胞内寄生虫です.

研究の目的:

ステロイド反応の微小胞膜炎を報告する
微小胞体感染症の発生源と病気の再発におけるその役割を特定する.
マイクロスポリディアル角膜炎の治療結果を評価する.

主な方法:

スリットランプバイオ顕微鏡検査と角膜のスクラッピングを含む臨床検査で,顕微鏡で微粒子を特定する.
井戸水のPCR分析で微小胞子が検出される
潤滑剤眼滴,局所用コルチコステロイド (ロテプレドノール) を使用し,汚染された水を避ける.

主要な成果:

角膜のスクラップにより微小胞子胞子が発見され微小胞子胞子膜炎の診断に至った.
井戸水のPCR分析により微小胞子の存在が確認され感染源として示唆された.
ロテプレドノールで治療し,汚染された水を避けると,角膜の病変と症状が解消した.

結論:

汚染された水源はマイクロスポリジアの重要な貯蔵庫であり,眼の感染症につながる可能性があります.
マイクロスポリディアル角膜炎は,特にステロイド反応のような誘発因子を持つ個体において,再発することがあります.
早期の診断,適切な治療,感染源の排除は,微小胞性角膜炎の管理に不可欠です.

キーワード:

前部室眼グラウコマ世界保健

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