慢性肝病中的粘弹性血静性测定-在急诊室对凝血进行分析
Akmez Latona1,2,3,4, Kate Hill5,6, Lara Roberts7
1Emergency Department, Ipswich Hospital, Ipswich, Queensland, Australia.
Vox sanguinis
|December 18, 2025
概括
粘弹性血液静止试验 (VHA) 显示慢性肝病 (CLD) 患者的高血凝率占主导地位,通常是由于纤维素素缺乏. 与传统的凝血试验 (CCT) 有显著的不一致性,突显出需要针对CLD制定特定的输血指南.
科学领域:
- 肝病学 肝病学是一种肝病学.
- 凝血科学 凝血科学
- 紧急医疗 紧急医疗
背景情况:
- 与常规凝血试验 (CCT) 相比,粘弹性血液静止试验 (VHA) 在紧急诊所 (ED) 治疗慢性肝病 (CLD) 患者的有用性尚不清楚.
- 描述VHA概况并评估其与该人群中CCT的一致性,对于优化患者护理至关重要.
研究的目的:
- 调查VHA与CCT在患有CLD的患者中对ED的作用.
- 描述VHA的特征,包括低凝固性,正常凝固性和高凝固性.
- 评估VHA结果与CCT结果之间的一致性.
主要方法:
- 在2016年1月至2023年8月期间向EDs提出的CLD患者的回顾性分析.
- 排除输血后结果以确保基线凝血评估.
- 使用制造商的范围将VHA结果 (旋转性血栓凝结仪和血栓凝结仪) 分类为低/正常/高凝血.
- 基于国际正常化比率 (INR),血小板计数和纤维素原水平的CCT定义的凝血病的定义.
主要成果:
- 在研究期间,VHA利用率呈现出显著的上升趋势.
- 旋转性血小板造影仪 (ROTEM) 主要显示低凝率 (69%),主要是由于纤维素素缺乏 (55%) 和因子缺乏 (37%).
- 在VHA和CCT之间观察到显著的不一致性,特别是在识别凝血因子缺乏方面,单独的CCT在42%的配对结果中检测到,而单独的VHA在3%.
结论:
- 由纤维素基凝块强度降低所驱动的低凝血能力是通过VHA评估的CLD患者的主要发现.
- 在VHA和CCT结果之间存在明显的不一致,特别是在凝血因子缺陷方面.
- 为了有效指导输血策略,开发VHA和CCT的CLD特定值至关重要.
相关概念视频
Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test
169
In clinical practice, the direct measurement of hepatic blood flow to evaluate liver function presents significant challenges due to the intricate and specialized nature of the necessary techniques. Consequently, healthcare professionals often rely on empirical estimates derived from thorough patient examinations and liver function tests to gauge liver health. Among the tools at their disposal, the Child–Pugh and MELD scoring systems stand out for their ability to categorize and assess...
169
Esophageal Varices-II: Clinical Features and Management
340
Esophageal varices often manifest as gastrointestinal bleeding episodes, presenting symptoms like hematemesis (vomiting of blood), hematochezia (passing fresh blood via the rectum), and melena (black, tarry stools). Other signs can include weight loss, anorexia, abdominal discomfort, jaundice, pruritus, altered mental status, and muscle cramps.
In the initial assessment, a thorough review of the patient's medical history is vital to identify risk factors such as liver disease, alcohol...
In the initial assessment, a thorough review of the patient's medical history is vital to identify risk factors such as liver disease, alcohol...
340
Disorders of Hemostasis
1.9K
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.
1.9K
Effect of Hepatic Disease on Pharmacokinetics: Drug Dosing and Hepatic Blood Flow
200
Chronic liver disease significantly impacts drug metabolism due to alterations in hepatic blood flow and enzyme accessibility. This disruption affects the body's pharmacokinetics—the movement and processing of drugs within the system. Key enzymes crucial for metabolizing medications become less accessible, changing how drugs are processed and utilized. Furthermore, liver disease influences the synthesis of plasma proteins, such as albumin and globulins, which play critical roles in drug...
200
Anticoagulant Drugs: Low-Molecular-Weight Heparins
1.6K
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...
1.6K


