軟骨不全性ミトラリグルジテーションのミトラリ修復対置換:短期および長期生存率の比較
Julien Magne1, Nicolas Girerd, Mario Sénéchal
1Institut Universitaire de Cardiologie et de Pneumologie de Québec, Laval University, Canada.
Circulation
|September 16, 2009
まとめ
ミトラ弁修復 (MVRp) は,不全性ミトラ弁吐症 (MR) の患者では,ミトラ弁置換 (MVR) に優れていません. この研究では,この患者グループにおける2つの手順の間の手術後の死亡率または全死亡率において有意な差異が見つかりませんでした.
科学分野:
- 心血管外科手術についてです.
- 心臓外科手術の結果について
- バルブ性心疾患 バルブ性心疾患とは
背景:
- ミトラ弁修復 (MVRp) は,一般的には,有機的ミトラ弁吐 (MR) のミトラ弁置換 (MVR) よりも,より高い生存率と関連しています.
- 缺血性MRの最適な外科的アプローチは依然として議論の余地があります.
- この研究は,不全性MR患者のMVRpとMVRのアウトカムを比較することを目的とした.
研究 の 目的:
- 術後のメトロ弁修復とメトロ弁置換の成果を,不全性メトロ弁吐症の患者で比較する.
- MVRpがMVRに比べて生存上の優位性を提供するか否かを,発血性MRの文脈で判断する.
主な方法:
- 発血性MRのためにミトラル弁手術を受けた370人の患者のデータを将来的に収集し,遡及的に分析した.
- 患者はMVRp (n=186) とMVR (n=184) という2つのグループに分けられました.
- 統計分析には,リスク要因と傾向スコアに対する調整が含まれていました.
主要な成果:
- 術後の死亡率は,MVRp (9.7%) とMVR (17.4%) に比べて低かった.P=0.03.
- 6年間の全生存率は,MVRp (73%) とMVR (67%) の間で統計的に異なるものではありませんでした,P=0.17.
- MVRpもMVRも,調整後の手術または全死亡率の独立した予測要因ではなかった.
結論:
- オーガニックMRとは異なり,MVRpはMVRに優れていない.
- この結果は,現在の証拠が,MVRpを,不血性MRの普遍的により良い選択肢として支持していないことを示唆しています.
- ランダム化試験は,不血性MRのこれらの2つの治療方法を決定的に比較するために正当化されています.
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