急性心不全患者のアウトカムを改善するためのインフルエンザワクチン接種 (PANDA II):中国における多地域,季節性,病院ベースの,クラスターランダム化,制御試験
Craig S Anderson1, Chang Hua2, Zhiyan Wang2
1The Institute of Science and Technology for Brain-inspired Intelligence, Fudan University, Shanghai, China; The George Institute for Global Health, University of New South Wales, Sydney, NSW, Australia; Neurology Department, Royal Prince Alfred Hospital, Sydney, NSW, Australia; Heart Health Research Center, Beijing, China.
Lancet (London, England)
|September 2, 2025
まとめ
インフルエンザワクチン接種は,急性心不全の入院患者の死亡率と再入院率を12ヶ月以内に大幅に低下させた. この研究は,この脆弱な集団のワクチン接種が 結果を改善する利点を示しています.
科学分野:
- 心臓病科
- 感染症
- 公衆衛生
背景:
- インフルエンザ予防接種は,心不全患者を含む脆弱な集団に推奨されますが,証拠は限られています.
- 世界的にワクチンの接種率が低いため 効果に関するさらなる研究が必要である.
- 急性心不全の患者は,インフルエンザの合併症のリスクが高いグループです.
研究 の 目的:
- インフルエンザワクチン接種が急性心不全で入院した患者の治療結果を改善するかどうかを判断する.
- 死亡率と再入院に対するワクチン接種の影響を評価する.
- 予防接種を入院医療に統合する可能性を評価する.
主な方法:
- プラグマティックで多地域的なクラスターランダム化制御試験が3つの冬季 (2021-2024) にわたって実施されました.
- 適格な中等から重度の心不全 (NYHAクラスIII-IV) の成人患者は,退院時にインフルエンザワクチン接種または通常の治療を受けた.
- 主なアウトカムは,階層的ロジスティック回帰モデルを使用して分析された12か月以内の全因死亡率または再入院率の複合でした.
主要な成果:
- 予防接種群では41. 2%,通常の治療群では47. 0% (OR 0. 83; p=0. 019) であった.
- 重篤な有害事象はワクチン接種群で有意に減少した (52. 5% vs 59. 0%; OR 0. 82; p=0. 013).
- 結果は感受性分析において一貫しており,最初の発見を裏付けている.
結論:
- インフルエンザワクチン接種は,急性心不全の入院中に投与され,生存率を向上させ,12ヶ月間の再入院を減少させます.
- インフルエンザ予防接種を入院医療に組み込むことは この高リスクグループにとって 実行可能な戦略です
- このアプローチは,資源が限られている環境でも,資源が豊富にある環境でも有効です.
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