ミトラル弁のパピラリ筋破裂における修復対置換:多センター研究
Giulio Massimi1,2, Matteo Matteucci1,3, Michele De Bonis4
1Department of Cardiothoracic Surgery, Heart and Vascular Centre, Maastricht University Medical Centre, Maastricht, Netherlands.
まとめ
心筋梗塞後のパピラ筋破裂の手術では,ミトラ弁の修復と置換の間の死亡率が有意な違いを示さなかった. しかし,併用冠動脈バイパス移植は入院生存率を改善しました.
科学分野:
- 心血管外科
- 介入心臓科
- 心臓手術 の 結果
背景:
- 乳頭筋破裂 (PMR) は,急性心筋梗塞 (AMI) の後,生命を脅かす珍しい合併症である.
- 手術は標準的な治療法ですが 最適な戦略については議論が続いています
- この研究は,CAUTION研究データベースからの結果を分析しています.
研究 の 目的:
- AMI後のPMRにおけるミトラ弁修復 (MVr) とミトラ弁置換 (MVR) の有効性を比較する.
- 病院内および長期の死亡率に影響を与える要因を特定する.
- 併用冠動脈バイパス移植 (CABG) の影響を評価する.
主な方法:
- 20の国際センターから,AMI後のPMR (2001年−2019年) について,MVRまたはMVRを施した218人の患者の遡及的分析.
- 入院後の死亡率と退院後の長期死亡率の比較
- 多変数ロジスティック回帰は,死亡率の独立した予測要因を特定します.
主要な成果:
- MVRは81. 6%の症例で,しばしば完全なPMRで実施され,MVRは部分的なPMRでより頻繁に実施された.
- 病院での死亡率は,MVRで25. 8%,MVRで20%であった (p=0. 440).
- 長期生存率は,MVRとMVR群の間で有意な違いを示さなかった (p=0. 474).
- 併用CABGは,MVR群における入院死亡率の低下と関連していた (21%対31. 7%,p=0. 035).
- CABGによるMVRでは,長期生存率が著しく高かった (p<0. 001).
結論:
- 完全なPMRにはMVRが好まれ,部分的なPMRにはMVRが好まれます.
- 病院内または長期の死亡率は,MVRとMVRの間に有意な差異は見られなかった.
- CABGの併用は,特にMVR群では,入院生存率の改善と関連しています.
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