静脈内レボシメンダンの持続した血液動力学的効果
Matti Kivikko1, Lasse Lehtonen, Wilson S Colucci
1Orion Pharma, Clinical Research, Espoo, Finland.
Circulation
|January 8, 2003
まとめ
レボシメンダン (Levo) 輸液は,心不全患者の血液動力学的改善を48時間維持します. その活性代謝物質であるOR-1896は,薬剤の中止後でもこれらの効果を延長します.
科学分野:
- 心臓病学 心臓病学
- 薬理学 薬理学とは
- クリティカルケア・メディシン
背景:
- 短期レボシメンダン (Levo) 輸液は,不補償性心不全の血液動力学を改善する.
- レボシメンダンの代謝産物は半減期が長く,血液動力学的に活性である.
- この研究では,輸液中のおよびその後のLevoの持続的な血液動力学的効果を調査しました.
研究 の 目的:
- 長期注射中のレボシメンダンの持続した血液動力学的効果を評価する.
- レボシメンダンの投与中止後に血液動力学的効果が持続するかどうかを判断する.
- 薬剤の長時間作用における活性代謝物の役割を評価する.
主な方法:
- 非補償性心不全の患者は,6時間,エスカレートした静脈注射レボシメンダンまたはプラセボを投与された.
- レボシメンダンで治療された患者は24時間,オープンラベル薬剤を継続し,その後24時間のレボシメンダンまたはプラセボにランダムに割り当てられました.
- ヘモダイナミックパラメータ,レボシメンダン,および活性代謝物質OR-1896の血濃度がモニタリングされました.
主要な成果:
- ヘモダイナミック効果は,レボシメンダンの継続群と離脱群の両方で48時間後に維持されました.
- レボシメンダンの血濃度は,離脱後急速に低下したが,活性代謝物質OR-1896の濃度は同様のままであり,有意に増加した.
- 活性代謝物質OR-1896は,両方のグループで48時間で3.5倍から4倍に増加した.
結論:
- レボシメンダンの血液動力学的効果は,48時間の輸液中に持続し,輸液後24時間持続します.
- 活性代謝物質OR-1896は,レボシメンダンの停止後に増加し,長期の血液動力学的効果を説明する可能性がある.
- これは,心不全管理におけるレボシメンダンの持続的な治療効果を示唆しています.
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