血XI因子升高与血栓后综合征有关
Konrad Stępień1, Jakub Siudut2, Jarosław Zalewski3
1Department of Thromboembolic Disorders, Institute of Cardiology, Jagiellonian University Medical College, Krakow, Poland; Department of Coronary Artery Disease and Heart Failure, St. John Paul II Hospital, Krakow, Poland.
Thrombosis research
|July 5, 2024
概括
升高的XI因子 (FXI) 水平与深静脉血栓症 (DVT) 后的血栓后综合征 (PTS) 发展有关. 较高的FXI与PTS发生,复发和静脉有关,这表明它在DVT并发症中的作用.
科学领域:
- 血液学 血液学 血液学
- 血管生物学 血管生物学
- 血栓形成研究研究
背景情况:
- 血栓后综合征 (PTS) 是深静脉血栓症 (DVT) 的常见并发症.
- PTS的发病包括炎症和前血栓性机制.
- 在PTS中XI因子 (FXI) 的特定作用以前没有被研究过.
研究的目的:
- 调查XI因子 (FXI) 水平升高与深静脉血栓症 (DVT) 患者的血栓后综合征 (PTS) 发生之间的关联.
主要方法:
- 180名患有首次DVT的患者被招募.
- 3个月后测量了XI因子 (FXI) 水平,炎症标志物,血栓生成,凝块透性 (Ks),凝块溶解时间 (CLT) 和纤维溶解蛋白.
- 使用维拉拉塔评分来评估PTS,并对静脉血栓栓塞 (VTE) 复发和静脉进行随访.
主要成果:
- 与没有PTS的患者相比,患有PTS的患者表现出明显更高的FXI水平.
- 增加的FXI (≥120%) 在PTS患者中更常见,显示出强烈的关联 (或5.55).
- 较高的基线FXI独立预测了PTS发生和VTE复发,并在长期随访时与静脉有关.
结论:
- 升高的XI因子 (FXI) 独立地与深静脉血栓症 (DVT) 后的血栓后综合征 (PTS) 发展有关.
- FXI与炎症和变化的凝块性质的关联可能会导致PTS的发病.
- 这些发现强调了FXI作为预防PTS的潜在治疗点.
相关概念视频
01:30Anticoagulant Drugs: Low-Molecular-Weight Heparins
672
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...
672
01:20Extrinsic and Intrinsic Pathways of Hemostasis
7.0K
Blood clotting or coagulation involves extrinsic and intrinsic pathways, which ultimately merge into the common pathway, forming a fibrin clot.
The Extrinsic Pathway
The extrinsic pathway of coagulation is typically initiated by tissue damage that exposes blood to tissue factor (TF), a protein released by the damaged tissue cells outside the blood vessels—this interaction with TF triggers biochemical reactions involving specific clotting factors. The key player here is Factor VII, which...
The Extrinsic Pathway
The extrinsic pathway of coagulation is typically initiated by tissue damage that exposes blood to tissue factor (TF), a protein released by the damaged tissue cells outside the blood vessels—this interaction with TF triggers biochemical reactions involving specific clotting factors. The key player here is Factor VII, which...
7.0K
01:16Clot Retraction and Fibrinolysis
5.4K
After a fibrin clot is formed, the next step is clot retraction, a vital process facilitated by platelet contractile proteins, such as actin and myosin. These proteins pull the fibrin strands closer together and condense the clot. This action reduces the size of the clot, creating a smaller, denser structure that effectively seals off the damaged vessel. Clot retraction consolidates the clot and helps with wound healing by bringing the edges of the damaged blood vessel closer together.
5.4K
01:24Disorders of Hemostasis
824
Hemostasis, the process that stops bleeding after a blood vessel injury, is crucial for maintaining the integrity of the circulatory system. However, disorders of hemostasis can disrupt this delicate balance, leading to either excessive clotting or bleeding. These disorders can be broadly classified into thromboembolic disorders and bleeding disorders.
Thromboembolic Disorders
Two factors primarily cause thromboembolic conditions.
Thromboembolic Disorders
Two factors primarily cause thromboembolic conditions.
824
01:22Formation of the Platelet Plug
5.7K
The platelet phase, the second stage of hemostasis, commences around 15-20 seconds after an injury. It follows and overlaps with the vascular phase, during which blood vessels constrict to minimize blood loss.
As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...
As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...
5.7K
01:09Coagulation
6.1K
The coagulation phase is a critical part of the body's process to prevent blood loss following injury to blood vessels. It involves chemical reactions that form a clot to seal the injured area. The clotting process begins shortly after injury, within 15-20 seconds for severe damage and 1-2 minutes for minor injuries.
During the coagulation phase, clotting factors, or procoagulants, play a vital role in initiating and progressing the coagulation cascade. This cascade is a series of reactions...
During the coagulation phase, clotting factors, or procoagulants, play a vital role in initiating and progressing the coagulation cascade. This cascade is a series of reactions...
6.1K