まとめ
ディゴキシン投与を中止することは,シヌスリズムを持つほとんどの患者,特に血濃度が低い患者にとって安全です. 86%の患者で治療中止が成功し,より低いレベルはより高い成功率を示しています.
科学分野:
- 心臓病学 心臓病学
- 薬理学 薬理学とは
背景:
- ディゴキシン (Digoxin) は,心不全や心律乱症の治療に使用されている,長年にわたる心臓のグリコシドです.
- 長期にわたるディゴキシン治療の必要性を評価することは,患者の管理において極めて重要です.
研究 の 目的:
- 副鼻腔リズムを持つ患者の長期ディゴキシン治療の中止の可行性と安全性を評価する.
- ダイゴキシン離脱が成功する予測要因を特定する.
主な方法:
- シヌスリズムで長期間ディゴキシンを投与していた56人の患者のコホートでは,薬の投与が中止された.
- プラズマ・ディゴキシン濃度は,服用終了前に測定されました.
- 治療中止後の臨床状態と心律乱や心不全の進行をモニタリングした.
主要な成果:
- 86%の患者 (48/56) は,臨床的悪化なしにディゴキシン投与を成功裏に中止しました.
- 離脱前プラズマディゴキシン濃度<0.8ng/mlの患者は,高い成功率を示した (33/34).
- 悪化,主に新発の心房細動は,0.8-2.0ng/mlのレベルを持つ22人の患者のうち7人に発生しました.
結論:
- ディゴキシンを中止することは,シヌスリズムを持つ患者の大半では実行可能である.
- ベースラインより低いプラズマディゴキシン濃度は,成功した離脱と関連しています.
- ディゴキシン投与中止時に心房細動のモニタリングが不可欠です.
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