ニトロプルーシドとプラゾシンの左心室機能と,慢性耐性閉塞性心不全における周辺循環に対する効果の比較
Circulation
|January 1, 1978
まとめ
ニトロプルシドとプラゾシンは,心不全患者の血圧を同等に低下させ,心臓の機能を改善しました. プラゾシンは持続的な効果を示し,長期の血管拡張療法に適しています.
科学分野:
- 心臓病学 心臓病学
- 薬理学 薬理学とは
背景:
- 慢性心不全は重要な治療上の課題を提示しています.
- 血管拡張剤は,心不全の管理に不可欠です.
- ニトロプロシドとプラゾシンは,明確な臨床応用を持つ強力な血管拡張剤です.
研究 の 目的:
- ニトロプロシドとプラゾシンの急性循環器効果を比較する.
- 耐火性閉塞性心不全の患者におけるその有効性を評価するために.
- 長期にわたる血管拡張療法におけるプラゾシンの適性を判断する.
主な方法:
- 耐火性閉塞性心不全の11人の慢性冠動脈患者の比較研究.
- 全身動脈圧,心拍数,左心室の充填圧,心指数を含む血液動力学的パラメータを測定した.
- システミック血管抵抗,前腕血管抵抗 (FVR),前腕静脈トーン (FVT) を評価した.
主要な成果:
- ニトロプルシドとプラゾシンの両方とも,全身動脈圧と左心室の充填圧を同等に低下させ,心指数を増加させました.
- 筋臓の酸素消費指数と心臓の効率は,両方の薬によって同様に向上しました.
- ニトロプロシドとプラゾシンは,全身的血管抵抗,FVR,FVTの比較可能な減少を示し,バランスのとれた動脈静脈のリラックスを示した.
- プラゾシンは,症状の改善とともに,最大6時間持続した効果を示した.
結論:
- ニトロプルシドとプラゾシンは,重度の心不全の患者に同様の急性血液動力学的効果を発揮する.
- プラゾシンの持続的な作用と症状の改善は,歩行性心不全における長期の経口血管拡張療法におけるプラゾシンの優越性を示唆しています.
- 経口プラゾシンは,入院中のニトロプルーシド治療の利点を,外科医の診療に拡張することができます.
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