Oac3padスコアによると,ボイジャーパッドの現実世界の適用性
Luís Fernandes1, Diogo Silveira1, João Peixoto1
1Angiology and Vascular Surgery Department, Vila Nova de Gaia/Espinho Hospital, Portugal.
Portuguese journal of cardiac thoracic and vascular surgery
|August 31, 2025
まとめ
リバロキサバンとアスピリンの二重経路阻害 (DPI) は,外周動脈疾患 (PAD) の患者,特に慢性四肢の危険性のある缺血症 (CLTI) の患者の出血リスクを増加させる可能性があります. 抗血栓治療の最適化には,OAC3PADスコアを用いた慎重なリスク評価が不可欠である.
科学分野:
- 血管 外科
- 心臓病科
- 薬理学について
背景:
- 末動脈疾患 (PAD) は,心臓血管と四肢の合併症のリスクが高い.
- 抗血栓薬はリバスカライゼーション後の長期的な結果に大きく影響します.
- VOYAGER PAD試験では,リバロキサバンとアスピリンの効果が示されましたが,特に慢性四肢の危険性のある缺血症 (CLTI) 患者における安全性に関する懸念は依然として存在しています.
研究 の 目的:
- PAD患者における二重経路阻害 (DPI) の適格性を評価する.
- この患者群におけるOAC3PADスコアを用いて出血リスクの分布を評価する.
- VOYAGER PAD試験の基準に基づいてDPIに適した患者の割合を決定する.
主な方法:
- 下肢再血管化 (2020~2023) を受けた652人の単一センターでの遡及研究.
- 患者をOAC3PADスコアで分類し,出血リスクを分層化しました.
- VOYAGER PADの基準に従ってDPI (リバロキサバンとアスピリン) の適格性の分析
主要な成果:
- 67. 6% の患者 (441/ 652) は低用量リバロキサバン治療の候補者であった.
- 出血のリスク分布: 12% 高度,23% 中等度,46% 低度,19% 低度.
- DPIの適格性は,OAC3PADリスクカテゴリーによって有意に変化した (p< 0. 001),低中リスクの患者で最高であり,高リスクの患者で最低であった.
結論:
- 実際のPAD患者,特にCLTI患者には,以前より高い出血リスクがある可能性があります.
- リバロキサバンとアスピリンの二重経路阻害 (DPI) は,出血のリスクのため,CLTI患者の約50%で注意が必要です.
- OAC3PADのようなリスク分層化ツールは,脆弱なPAD集団における抗血栓治療の利益とリスクのバランスをとるために不可欠です.
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