腎臓と肝臓の機能は,ハートメイトII左心室補助装置による継続的なフローサポートで,進行性心不全の患者に改善されます
Stuart D Russell1, Joseph G Rogers, Carmelo A Milano
1Johns Hopkins Hospital, 600 N Wolfe Street, Baltimore, MD 21287, USA. srusse14@jhmi.edu
Circulation
|November 26, 2009
まとめ
継続的な流れの左心室補助装置は,移植を待っている進行性心不全患者の腎臓と肝臓の機能を改善します. この研究では,6ヶ月間にわたって脈動性の低下による有害な影響は認められず,HeartMate IIのサポートにより臓器の機能が改善されたことを示した.
科学分野:
- 心臓病学 心臓病学
- ネフロロジーは腎臓科
- 肝臓病理学 肝臓病理学
背景:
- 主要な臓器の機能に対する絶え間ない血流と脈動性の低下の影響は,まだ十分に研究されていない.
- 先進的な心不全は,しばしば左心室補助器 (LVAD) を含む,機械的な循環支援を必要とします.
研究 の 目的:
- 進行性心不全患者の腎臓および肝臓機能に対するHeartMate II連続流動左心室補助装置の効果を評価する.
- 臓器の機能が時間とともに改善するか,またはパルサチリティの低下が有害な影響を及ぼすかどうかを判断する.
主な方法:
- 腎臓 (クレアチニン,BUN) と肝臓 (AST,ALT,ビリルビン) の機能は,HeartMate II LVAD.を投与された309人の進行性心不全患者で評価されました.
- 患者は,移植前の検査値 (正常と正常より高い値) に基づいて分類された.
- LVADのサポート中に,血液の化学反応は時間とともにモニタリングされました.
主要な成果:
- 腎臓と肝臓の機能パラメータの有意な改善は,正常値より高い移植前値を持つ患者で6ヶ月間にわたって観察されました.
- 平均のBUNとクレアチニンは,正常値以上のグループで有意に減少した (P<0.0001とP<0.01,それぞれ).
- 肝臓酵素 (AST,ALT) と総ビリルビンも正常値以上のグループで有意な減少を示した (P<0.001).
- 移植前の正常な臓器機能を持つ患者は,LVADのサポート期間中,正常な値を維持しました.
結論:
- HeartMate II連続フローLVADは,移植への橋渡しとなる進行性心不全患者の腎臓と肝臓の機能を効果的に改善します.
- 6ヶ月の間,脈動性の低下による臓器機能への有害な影響は観察されなかった.
- LVADのサポートは,この患者集団における臓器機能を改善するための有益な治療の選択肢を提供します.
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