相关实验视频
Updated: May 22, 2025

06:47
Microfluidics in Assessing Platelet Function
Published on: November 8, 2024
738
血小板聚合测试在复发性脑性缺血和重大出血中的预测价值
Masanori Ishiguro1, Yasutaka Kurokawa2, Atsushi Tanooka3
1Department of Systems Neuroscience, School of Medicine, Sapporo Medical University, Sapporo, Hokkaido, Japan.
概括
血小板聚合测试可以预测脑缺血患者的结果. 缺少最大聚合量的减少表明缺血复发风险较高,而过度减少表明出血风险增加.
科学领域:
- 神经学 神经学
- 心脏病学 心脏病学
- 血液学 血液学 血液学
背景情况:
- 抗血小板治疗在脑性缺血中有效性的研究不足.
- 缺血事件和出血是这些患者的重大风险.
- 血小板聚合测试可以预测这些不良事件.
研究的目的:
- 评估血小板聚合测试,以预测缺血复发和严重出血.
- 评估最大聚合 (MaxAgg) 在患者结局中的作用.
主要方法:
- 在768名患者的血小板聚合活性使用度测量测量.
- 氨酸二酸盐 (ADP) 用于诱导血小板聚合.
- 分析了MaxAgg,分解和临床事件之间的相关性.
主要成果:
- 在没有复发的患者中,最大聚合 (MaxAgg) 显著下降.
- 较高的MaxAgg与缺血复发的几率增加有关 (OR 1.057).
- 较低的MaxAgg与严重出血的几率增加有关 (OR 0.828).
结论:
- 缺乏MaxAgg的减少预测缺血性复发.
- 过度的MaxAgg下降预测主要出血.
- 血小板聚合测试可以指导脑缺血的抗血小板治疗.
相关概念视频
Formation of the Platelet Plug
3.5K
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...
3.5K
Antiplatelet Drugs: Prostaglandin Synthesis, P2Y12 and Glycoprotein IIb/IIIa Inhibitors
446
Antiplatelet drugs emerge as frontline defenders against the insidious threat of thromboembolic diseases, where abnormal clots obstruct vital blood vessels. These drugs stand as bulwarks, inhibiting platelet aggregation and clot formation, thereby mitigating the risk of life-threatening conditions like myocardial infarction, coronary artery disease, and thrombotic strokes.
Prostaglandin synthesis inhibitors, exemplified by the widely known aspirin, wield their power by irreversibly acetylating...
Prostaglandin synthesis inhibitors, exemplified by the widely known aspirin, wield their power by irreversibly acetylating...
446
Clot Retraction and Fibrinolysis
3.1K
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.
3.1K
Structure and Function of Platelets
937
The cell fragments known as platelets are disc-shaped, with an average diameter of about 3 μm and a thickness of roughly 1 μm. They play a crucial role in the body's vascular clotting system, which also involves plasma proteins, blood cells, and blood vessel tissues.
Platelets are continually replenished, circulating in the bloodstream for 9-12 days before being removed by phagocytes, primarily in the spleen. A microliter of circulating blood contains between 150,000 and 450,000...
Platelets are continually replenished, circulating in the bloodstream for 9-12 days before being removed by phagocytes, primarily in the spleen. A microliter of circulating blood contains between 150,000 and 450,000...
937

