ペースメーカー誘発性心筋症:ナラティブレビュー
Ergi Duli1, Souzan Yacob1, Alexander Ibrahim1
1Department of Medicine, Kingston Health Sciences Centre, Queen's University, Kingston, ON, Canada.
Trends in cardiovascular medicine
|February 6, 2026
まとめ
慢性右室ペーシング(RVP)のリスクであるペースメーカー誘発性心筋症は、心不全につながる可能性があります。早期のリスク評価と、生理的ペースメーカー療法またはCRTなどの介入により、有害なリモデリングを防ぐことができます。
科学分野:
- 循環器学; 生体医工学
背景:
- ペースメーカーの植込み率は世界的に増加しています。慢性右室ペーシング(RVP)は、ペースメーカー誘発性心筋症(PICM)を引き起こし、心不全につながる可能性があります。PICMのリスクが高い患者を特定することは困難です。
研究 の 目的:
- PICMの定義、病態生理、有病率、リスク因子、スクリーニング、および治療に関する文献をレビューすること。早期介入によるPICM予防戦略を探求すること。新規の心臓再同期療法(CRT)または生理的ペースメーカー療法の適切な候補者を特定するのに役立つこと。
主な方法:
- ナラティブ文献レビューを実施しました。成人集団におけるPICMに関する関連研究を検討しました。定義、病態生理、有病率、リスク因子、スクリーニングツール、および治療法に焦点を当てました。
主要な成果:
- PICMは、有害な心臓リモデリングと左室機能不全を引き起こすRVPの合併症です。リードの部位やペーシングの選択肢のばらつきにより、有病率の評価が妨げられています。患者の特徴を用いた効果的なリスク層別化が重要です。
結論:
- PICMを予防するためには、リスクの高い患者を早期に特定することが不可欠です。生理的ペースメーカー療法とCRTは、主要な予防および治療戦略です。リスク評価の改善は、病的なリモデリングを防ぐためのタイムリーな介入を導くことができます。
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