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2型糖尿病における血圧低下:体系的なレビューとメタ解析
Connor A Emdin1, Kazem Rahimi1, Bruce Neal2
1The George Institute for Global Health, University of Oxford, Oxford, United Kingdom.
JAMA
|February 11, 2015
まとめ
2型糖尿病患者の血圧を下げることで,死亡率と血管疾患の発生率が著しく低下します. 利益は,高血圧の基礎値でより顕著であり,薬剤の使用をサポートします.
科学分野:
- 心臓病学 心臓病学
- エンドクリノロジー エンドクリノロジー
- クリニック・リサーチ 臨床研究
背景:
- 血圧管理は,糖尿病患者の血管リスクを低減するために不可欠です.
- 2型糖尿病は,心血管疾患の罹患率と死亡率の増加と関連しています.
研究 の 目的:
- 2型糖尿病患者の血圧を下げる治療と血管疾患との関連を調査する.
- 治療の有効性に対するベースラインと達成された血圧レベルの影響を評価する.
主な方法:
- 糖尿病患者の血圧を下げる治療の大規模ランダム化対照試験 (RCT) の体系的な検索が行われました.
- バイアスのリスクが低い40件の試験 (100,354人の参加者) のデータを抽出し,固定効果メタ解析を用いて分析した.
- 結果には,全因死亡率,心血管疾患,脳卒中,心不全,網膜症,アルブミヌリア,腎不全が含まれていました.
主要な成果:
- シストリック血圧の10mmHgの低下は,死亡率,心血管疾患,冠動脈疾患,脳卒中,アルブミヌーリア,網膜病変のリスクの有意な低下と関連していました.
- 絶対リスクの減少は,複数の血管的アウトカムで観察されました.
- 比較リスクの低下は,平均高出血圧 (≥140 mm Hg) を有する臨床試験で認められた.
結論:
- 血圧の低下は,2型糖尿病患者の死亡率と臨床結果の改善と関連しています.
- 血圧の低下の利点は,高血圧のベースラインを有する個体においてより顕著である.
- これらの発見は,2型糖尿病の管理において抗高血圧薬の重要性を強化しています.
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