新たに悪性腫瘍と診断された小児におけるグラム陰性腸内コロニゼーション:微生物学,抗菌剤耐性パターン,および臨床的影響
Ali Amanati1,2, Asiyeh Dezhkam3, Farzaneh Safari3
1Clinical Research Development Center, Amir Oncology Teaching Hospital, Shiraz University of Medical Sciences, Shiraz, Iran.
Gut pathogens
|February 22, 2026
まとめ
小児がん患者では,カルバペネム耐性腸内細菌 (CP-CRE) と拡張スペクトルβ-ラクタマース生成細菌 (ESBL) の高い腸内コロニー化率を示しています. この脆弱な集団の感染を予防するために,モニタリングとコントロールが不可欠です.
科学分野:
- 感染症 感染症は感染症です.
- 腫瘍学 腫瘍学
- 微生物学 微生物学とは
背景:
- カーバペネム耐性腸内細菌 (CRE) は,抗生物質耐性が高いため,治療に重大な課題があります.
- この研究は,小児がん患者におけるCP-CREおよびESBLを生成するグラム陰性細菌 (GNB) の腸内コロニー化率に焦点を当てています.
- また,抗生物質の感受性および潜在的な感染症合併症を評価します.
研究 の 目的:
- 小児がん患者におけるCP-CREおよびESBL産生GNBの腸内コロニー化率を調査する.
- これらの耐性細菌の抗生物質感受性プロフィールを決定する.
- この患者グループにおける感染症の合併症を検査する.
主な方法:
- 腫瘍学病院での前向きなコホート研究.
- 3つの時間点で採取された糞便サンプルで,コミュニティと病院で獲得したコロニー化を評価します.
- 抗菌感受性検査,フェノタイプのESBLスクリーニング,および耐性遺伝子のPCR.
主要な成果:
- 81人の小児患者が含まれており,70%がコミュニティで獲得されたGNBコロニー化でした.
- ESBLを生成するGNBは58%のサンプルで検出され,CP-CREは14.6%で検出されました.
- コリスチン,アミカシン,カルバペネムがインビトロで最も高い活性を示した.
結論:
- CP-CRE植民地の発生率が高いため,緊急にモニタリングと制御措置を講じなければならない.
- これは,腫瘍学の環境で新たに診断された小児がん患者にとって特に重要です.
- 高耐性細菌の拡散を防ぐことは,患者の治療結果を改善するために不可欠です.
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