ベースラインのLDL-CレベルとLDL-Cを下げた後の総および心血管死亡率との関連: 系統的レビューとメタ解析
PubMedで要約を見る
まとめ
この要約は機械生成です。低密度脂質タンパク質 (LDL- C) を低減する集中治療は,特にLDL- C値 (≥100 mg/ dL) が高かった患者で,全死亡率と心血管疾患による死亡率を著しく低下させる. 初期LDL-C値が160mg/dL以上である場合に最も顕著です.
科学分野
- 心血管医学
- 薬理学について
- 臨床試験
背景
- 低密度脂質タンパク質コレステロール (LDL- C) を低下させる薬の試験は,致死性および非致死性エンドポイントに異なる効果を示しています.
- ベースラインのLDL-C値と死亡リスクの減少との関連は,さらなる調査が必要である.
研究 の 目的
- 総死亡率と心血管死亡率の減少と相関するかどうかを評価する.
- 異なるLDL-C低減の強度による死亡率と主要な不良心疾患 (MACE) への影響を分析する.
主な方法
- LDL-Cを低下させる薬 (スタチン,エゼチミブ,PCSK9阻害剤) のランダム化臨床試験のための電子データベースと会議の記録を体系的に検索する.
- ベースラインのLDL- C値と死亡リスクの減少との関連を評価するために,メタレグレッションとメタ分析を使用した.
- 介入群は"より集中的"または"より集中的でない"LDL- C低下として分類された.
主要な成果
- より集中的なLDL- C低下治療は,全因死亡率 (7. 08%対7. 70%) と心血管死亡率 (3. 48%対4. 07%) の低下と関連していました.
- 死亡率の減少は,LDL- C値 (≥100 mg/ dL) が高かったところで見られ,最も顕著な効果は≥160 mg/ dLであった.
- 基礎値より高いLDL- Cの患者では,密集したLDL- Cの低下により,心筋梗塞,再血管化,およびMACEのリスクも減少しました.
結論
- 発症時のLDL- C値が高かった患者では,より集中的なLDL- C値低下により,全死亡率と心血管死亡率のリスクが減少します.
- 基礎値LDL- Cが100 mg/ dL以下である場合,集中的なLDL- C低下と死亡率の利益との関連は有意ではない.
- ベースラインより高いLDL- C値は,LDL- Cを低下させる治療による最大の潜在的利益を示唆する可能性があります.
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