敗血症患者における左室駆出率上昇の予後への影響
1Department of Critical Care Medicine, West China Hospital of Sichuan University; chuk282@outlook.com.
Journal of visualized experiments : JoVE
|February 2, 2026
まとめ
敗血症患者における左室駆出率(LVEF)の過剰な亢進は、死亡率の上昇を予測する。この所見は、集中治療室患者におけるLVEFの予後的重要性を強調し、より良い患者アウトカムのためには、臨床的な注意を一層高める必要がある。
科学分野:
- 循環器病学
- 集中治療医学
- 心エコー図法
背景:
- 左室収縮機能は、敗血症における予後マーカーとして議論の余地がある。
- 敗血症患者における左室駆出率(LVEF)の評価は、死亡リスクの理解にとって重要である。
研究 の 目的:
- 敗血症患者における左室駆出率(LVEF)の異なるレベルと死亡転帰との関連を評価する。
- 集中治療室の敗血症患者において、LVEFが28日死亡率の有意な予測因子であるかどうかを判断する。
主な方法:
- 集中治療室に入室した成人の敗血症患者の後向き、単一施設、縦断的コホート研究。
- 集中治療室入室後7日以内に施行された経胸壁心エコー図(TTE)。
- 患者を過剰亢進(LVEF≧70%)、正常(LVEF 55%-70%)、および低下(LVEF≦55%)のLVEF群に層別化した。
主要な成果:
- 3,363人の患者のうち、過剰な左室駆出率(LVEF)は28日死亡率の最も強力な予測因子であった。
- 過剰なLVEFは、正常なLVEFと比較して、死亡ハザードが3.643倍高いことと独立して関連していた。
- 集中治療室の敗血症患者において、左室機能の過剰な亢進と28日死亡率の上昇との間に有意な関連が存在する。
結論:
- 左室機能の過剰な亢進は、集中治療室に入院した敗血症患者における28日死亡率の上昇の有意な独立した予測因子である。
- 予後への影響のため、敗血症における過剰なLVEFに対する臨床的認識の向上が必要である。
- 本研究は、敗血症患者のリスク層別化における心エコー検査評価の重要な役割を強調する。
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