心不全の患者における適応対常規の心臓再同期療法 (AdaptResponse): グローバル,前向き,ランダム化比較試験
Bruce L Wilkoff1, Gerasimos Filippatos2, Christophe Leclercq3
1Cleveland Clinic, Cleveland, OH, USA.
Lancet (London, England)
|August 27, 2023
まとめ
適応性心臓再同期療法 (CRT) は,従来のCRTと比較して,心不全と左ブランクブロックの患者で結果が有意に改善されませんでした. この2つの治療は低症例率を示し,この患者群における有効性を示した.
科学分野:
- 心臓病科
- 医療機器
- 臨床試験
背景:
- 従来の心臓再同期療法 (CRT) は,左ブランクブロック (LBBB) の心不全患者で用いられる.
- アダプティブCRTは継続的な自動最適化を提供し,潜在的に結果を改善します.
- この研究は,心不全,LBBB,および無傷の心房伝導 (AV) の患者に焦点を当てています.
研究 の 目的:
- 適応型CRTと従来のCRTの臨床結果を比較する.
- 特定の心不全集団における適応型CRTの有効性と安全性の評価.
主な方法:
- 3617人の患者を対象に実施された世界規模,前向きなランダム化試験です.
- 患者は,適応型CRTまたは従来の二室型CRTのいずれかに割り当てられました.
- 主なアウトカムは,全因死亡または心不全の補償のための介入の複合でした.
主要な成果:
- 適応型CRTは,従来のCRTと比較して主要なアウトカムを有意に低下させなかった (HR 0. 89, p=0. 077).
- 適応型CRTでは23. 5%,従来のCRTでは25. 7%でした.
- システムに関連した有害事象は,グループ間では類似した (25. 0% vs 24. 3%).
結論:
- この患者集団において,適応型CRTは従来のCRTよりも有意な効果を示さなかった.
- 両方のCRT戦略は,低死亡率と心不全の解消率で好ましい結果を示した.
- この発見は,心不全,LBBB,および無傷のAV伝導を有する患者のCRTに対する強固な反応を示唆しています.
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