激活凝血时间平台很重要:在左心室切除过程中,抗凝血位的证据差距和现实世界的变化在左心室切除期间
Boldizsar Kovacs1, Valon Spahiu1, Nina L Rohrbach1
1Department of Cardiology, Inselspital Bern, University Bern, Switzerland.
Heart rhythm
|March 9, 2026
概括
激活凝血时间 (ACT) 的测量在左心房除过程中使用的设备之间有显著差异. 这需要特定于平台的目标范围和氨酸剂量策略,以确保安全有效的抗凝药.
科学领域:
- 心脏病学 心脏病学
- 医疗器械 医疗器械
- 药理学 药理学是指药理学的学科.
背景情况:
- 激活凝血时间 (ACT) 对于指导左心房除过程中的肝素抗凝剂至关重要.
- 目前的指导方针假设ACT的目标值是独立于设备的,这项研究探讨了这一概念.
研究的目的:
- 为了确定测量的ACT值是否在各种测量平台上有所不同.
- 评估是否根据临床实践中使用的ACT平台调整抗凝策略.
主要方法:
- 在PRISMA注册的系统审查中,在左心房切除过程中,在不同的测量平台上比较了ACT值.
- 一项针对电生理学家的国际调查收集了关于ACT平台,肝素剂量和目标ACT范围的数据.
主要成果:
- 系统性审查揭示了平台之间同时测量的ACT值的实质差异 (50-60秒平均差异).
- 医生调查 (n=164) 显示了基于平台 (Hemochron,Medtronic ACT Plus,i-STAT) 的各种ACT目标和肝素剂量策略.
- 近三分之一的受访者在切换ACT平台时修改了肝素剂量.
结论:
- 交叉验证数据证实了ACT测量平台之间的显著差异.
- 临床肝素给药和ACT目标在不同平台上显著不同,挑战了普遍目标假设.
- 对ACT结果的平台特定解释对于准确的抗凝固管理至关重要.
更多相关视频
相关概念视频
Anticoagulant Drugs: Low-Molecular-Weight Heparins
Hemostasis is a crucial process that prevents excessive blood loss from damaged blood vessels. It involves various mechanisms such as vasoconstriction, platelet adhesion and activation, and fibrin formation. The importance of each mechanism depends on the type of vessel injury. In contrast, thrombosis is the abnormal formation of a blood clot within the blood vessels, leading to potential complications if the clot obstructs blood flow. Thrombosis can be caused by increased coagulability of the...
Anticoagulant Drugs: Vitamin K Antagonists and Direct Oral Anticoagulants
Oral anticoagulants are vital tools in preventing and treating blood clotting disorders. This diverse class of medications can be categorized as vitamin K antagonists, exemplified by warfarin, and direct thrombin inhibitors (DTIs), such as dabigatran, as well as factor Xa inhibitors, including rivaroxaban.
Warfarin, a prominent vitamin K antagonist family member, exerts its effect by inhibiting the enzyme VKORC1 (vitamin K epoxide reductase complex 1). By hindering this enzyme, warfarin...
Warfarin, a prominent vitamin K antagonist family member, exerts its effect by inhibiting the enzyme VKORC1 (vitamin K epoxide reductase complex 1). By hindering this enzyme, warfarin...
Venous Thrombosis III: Interprofessional Care
Venous thrombosis requires effective prevention and treatment strategies to improve patient outcomes and reduce potential complications.Prevention StrategiesHealthcare providers must prioritize preventing venous thromboembolism (VTE) for all adult patients upon admission. Interventions depend on bleeding and thrombosis risk, medical history, current medications, diagnoses, planned procedures, and patient preferences. Patients on bed rest should change positions every two hours and, if not...


