断続的な皮膚経由のニトログリセリン療法. ニットレートフリーインターバル中にアンギナルの値が低下する
J D Parker1, A B Parker, B Farrell
1Department of Medicine, Queen's University, Kingston General Hospital, Ont, Canada.
Circulation
|February 15, 1995
まとめ
安定したアンギナに対する断続的な皮膚経由のニトログリセリン治療は,パッチの除去後数時間の間,アンギナ値の低下につながる可能性があります. この運動耐性の低下は,治療のタイミングと患者のモニタリングを慎重に検討する必要がある.
科学分野:
- 心臓病学 心臓病学
- 薬理学 薬理学とは
背景:
- 断続的な皮膚経由のニトログリセリンは,安定した心痛のために使用されます.
- ニトログリセリンに対する耐性は,継続的な治療で発生する可能性があります.
- 以前の研究では,パッチを外した後に門の潜在的低下が示唆されていた.
研究 の 目的:
- 安定したアンギナを持つ患者において,経性ニトログリセリンパッチ除去がアンギナ値に与える影響を調査する.
- パッチを外した後の門値の変化の持続時間を決定する.
主な方法:
- ランダム化,ダブルブラインド,プラセボ対照,クロスオーバー研究が行われました.
- 安定したアンギナを持つ12人の患者は,トレッドミルのテストを受けました.
- 患者は活性ニトログリセリンまたはプラセボのパッチを受け,除去後の間隔で検査を行った.
主要な成果:
- ニトログリセリンに対する耐性は観察され,午前8時の検査では,活性薬とプラセボとの間に有意な差異は見られなかった.
- パッチの除去は,アンギナ (P1) と中度性アンギナ (P2) の発症までの時間の有意な減少と関連していました.
- これらの効果は,心拍数や血圧の変化なしに,除去後2〜6時間持続しました.
結論:
- 断続的なトランスダーマルのニトログリセリン療法により,安定したアンギナ患者において,パッチの除去後4~6時間の間,門の値が低下します.
- 根本的なメカニズムは,ニトログリセリンの適用に対する反規制反応を含む可能性があります.
- この発見は,胸痛の管理と治療スケジュールの最適化に影響を及ぼします.
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