合意は,心臓再同期療法に対する応答を定義するために使用される現在の基準の中で貧弱です
Brandon K Fornwalt1, William W Sprague, Patrick BeDell
1Emory University School of Medicine, Department of Radiology, Atlanta, GA 30322, USA. bkf@gatech.edu
Circulation
|April 28, 2010
まとめ
心臓再同期療法への反応基準に関する合意は乏しい. ほとんどの研究は異なる定義を使用しており,一貫した結果と患者の結果の比較を妨げています.
科学分野:
- 心臓病学 心臓病学
- 医療機器技術 医療機器技術について
- クリニック・トライアル 臨床試験
背景:
- 心臓再同期療法 (CRT) に対する陽性反応の定義には,複数の基準が存在します.
- これらの多様な応答基準の一致性を評価した以前の研究はありませんでした.
- この研究では,様々なCRT応答基準の間の不十分な一致を仮定した.
研究 の 目的:
- 心臓再同期療法におけるさまざまな応答基準の一致性を評価する.
- 異なる定義に基づいて応答率の変動性を定量化する.
主な方法:
- 関連する記事を特定するために",心臓再同期"と"応答"の文献検索を行いました.
- 高度引用されている50の出版物をレビューし,26の記事から17の異なるプライマリレスポンス基準を抽出しました.
- PROSPECT研究から426人の患者を対象に,コーエンのカッパ係数を用いて15の基準の一致を評価した.
主要な成果:
- CRTに対する全体的な反応率は,評価された15の基準で32%から91%まで幅広く変化しました.
- 基準間の比較の75%は,合意が薄い (kappa ≤0.4) でした.
- 比較の4%だけが強い合意 (kappa ≥0.75) を示し,21%が中等な合意を示した.
結論:
- 心臓再同期療法への反応は,最も引用されている文献で17の異なる基準によって定義されています.
- これらの基準の間の合意の弱さ (75%) と限られた強い合意 (4%) は,研究結果の汎用性を妨げます.
- 応答基準に関するコンセンサスの欠如は,CRTの結果の解釈と研究間の比較を複雑にする.
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