内視鏡検査を受ける冠動脈疾患患者の心循環効率に対する高流量鼻酸素療法の効果: ランダム化制御試験のための試験プロトコル
Fang Xie1, Mu Jin1, Tingting Ma1
1Department of Anesthesiology, Beijing An Zhen Hospital, Chaoyang-qu, Beijing, China.
BMJ open
|August 22, 2025
まとめ
冠動脈疾患 (CAD) の患者の深静止内視鏡検査では,高流量鼻酸素療法 (HFNO) が心臓機能を改善する可能性があります. この研究では,HFNOと標準酸素療法 (SOT) を比較して,心筋の酸素供給と需要のバランスを評価した.
科学分野:
- 心臓病科
- 麻酔科
- 呼吸器医学
背景:
- 冠動脈疾患 (CAD) の患者は,胃腸内視鏡検査中の深静止に対する耐性が低下し,低血圧および心筋不全のリスクが増加します.
- 酸素と鎮静剤の最適化は 高リスク患者の管理に不可欠です
- 高フロー鼻酸素療法 (HFNO) はリスク集団における低酸素症の予防に有望であることが示されています.
研究 の 目的:
- 深い静止状態の胃腸内視鏡検査における心臓筋酸素供給の強化におけるHFNOの有効性を調査する.
- 心筋の酸素供給需要バランスに対するHFNOと標準酸素療法 (SOT) の効果を,心循環効率 (CCE) によって評価する.
主な方法:
- 単一センターでのランダム化対照試験で,90人のCAD患者で,深い鎮静性胃腸内視鏡検査を受けた.
- HFNOまたはSOTのいずれかを投与するために,患者は1:1でランダムに割り当てられます.
- 主要なアウトカムは,鎮静中のHFNOとSOTグループのCCEの差であり,次要なアウトカムは,血液動力学的安定性および生化学的マーカーを含む.
主要な成果:
- 主要な結果は,HFNOとSOTのグループ間の心循環効率 (CCE) の違いです.
- 二次的アウトカムには,低血圧,低酸素症,脳内ナトリウレチンペプチド,トロポニンI,乳酸濃度の変化,患者によるアウトカムが含まれます.
- 血液動力学的パラメータを分析する.
結論:
- この研究は,HFNOが心筋の酸素供給を改善し,深い鎮静内視鏡検査を受けるCAD患者の有害事象を減らすことができるかどうかを決定することを目的としています.
- 研究結果は,処置時の鎮静療法における高リスクの心臓病患者の酸素化戦略に関する臨床実務を参考にします.
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