ミトラクリップ 対 二次性ミトラリグルジテーションの手術: 体系的なレビューと更新されたメタ解析
Juan Pinilla1, Sebastian Jaramillo2, Mariano Gallo Ruelas3
1CES University, School of Medicine, Medellín, Colombia.
まとめ
MitraClip トランスキャセターのエッジ・トゥ・エッジ修復 (M- TEER) は,二次性ミトラリゲルチテーション (MR) に対して,手術と比較して,残留MRを効果的に減少させます. しかし,これは死亡率や心不全入院の有意な改善をもたらさなかった.
科学分野:
- 心臓病科
- 介入心臓科
- 心臓外科
背景:
- 二次性ミトラル反吐 (MR) の最適な管理は,外科的および皮膚経由の選択肢があることで議論されています.
- 副次的な MR 管理戦略は,さらなる比較分析を必要とします.
研究 の 目的:
- MitraClipを用いた皮膚経経導体端から端への修復 (M-TEER) の有効性と安全性を,二次性MRにおける外科的介入と比較する.
- M-TEERと外科的アプローチの間の臨床的結果と残留MR率を評価する.
主な方法:
- PubMed,Embase,Cochraneのデータベースを体系的に検索する
- M- TEER (MitraClip) または二次性MR手術を受けた患者1605人を対象とした11件の研究 (2件のRCT,9件の観察) を含む.
- ランダム効果モデルを用いた95%信頼区間 (CI) のリスク比 (RR) のメタ分析
主要な成果:
- MitraClipを使用したM- TEERは,手術と比較して追跡時に残留MRグレード ≤2+の割合が著しく低下した (RR: 0. 86,95%CI: 0. 78〜0. 95).
- あらゆる原因による死亡率 (RR: 1.18,95%CI: 0. 93から1. 49),心血管疾患による死亡率 (RR: 1.42,95%CI: 0. 54から3. 68) または心不全による入院率 (RR: 1.55,95%CI: 0. 79から3. 04) で有意な差異は認められなかった.
- 機能的状態 (NYHAクラスI/ II) も,グループ間の有意な違いを示さなかった (RR: 0. 92,95%CI: 0. 83から1. 01).
結論:
- MitraClip M- TEERは,二次性MR患者における外科介入と比較して,残留MRの発生率が低い.
- 減少した残留MRにもかかわらず,M- TEERは手術と比較して死亡率,心不全入院,または機能的状態に関して優れた臨床結果を示さなかった.
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