抗血素缺乏症:患有血栓症和血栓性家族患者的频率
Maria Anna Pejková1, Eva Ivanová1, Petr Sadílek1
14th Department of Internal Medicine - Hematology, Faculty Hospital, Charles University, Faculty of Medicine in Hradec Králové, Hradec Králové; Czech Republic.
概括
抗血素缺乏是静脉血栓栓塞 (VTE) 的重要危险因素,特别是在年轻患者中. 建议对45岁以下无其他风险因素的血栓形成患者进行检测,包括孕妇和使用口服避孕药的人.
科学领域:
- 血液学 血液学 血液学
- 遗传学 遗传学 是一个
- 血管医学 血管医学
背景情况:
- 抗血素 (AT) 缺乏是静脉血栓塞栓症 (VTE) 的遗传风险因素.
- 最近的重点转移到因子V Leiden和因子II 20210a突变,可能会掩盖AT缺乏症.
- 了解不同患者群体中AT缺乏症的患病率对于适当的诊断策略至关重要.
研究的目的:
- 为了确定不同患者队列中抗血素缺乏的频率.
- 为了建立抗血素缺乏检测的明确指示.
- 重新评估在血栓友爱症工作中抗血栓素检测的临床效用.
主要方法:
- 在不同患者队伍中分析抗血素缺乏的频率.
- 结果的分层基于VTE复发,血栓的位置和相关的风险因素 (例如,口服避孕药,怀孕).
- 临床评估以确定患有血栓形成的患者并评估风险因素.
主要成果:
- 在4%的50岁以下复发性VTE患者中发现了抗素缺乏症.
- 在患有脊柱静脉血栓症的患者中观察到1%的患病率.
- 2%的与联合口服避孕药使用或怀孕相关的病例显示出抗血缺乏症.
- 在中枢静脉血栓症患者中没有检测到抗血缺乏症.
结论:
- 对45岁以下的患有血栓形成而没有可识别的风险因素的患者,抗血栓素检测是有价值的.
- 检测特别适用于怀孕期间,产后期或口服避孕药使用的第一年内出现VTE的妇女.
- 尽管对综合性血栓性查的兴趣在下降,但在特定情况下,抗血栓检测仍然具有临床相关性.
相关概念视频
Anticoagulant Drugs: Low-Molecular-Weight Heparins
763
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...
763
Disorders of Hemostasis
1.0K
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.
1.0K
Venous Thrombosis III: Interprofessional Care
10
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...
10
Venous Thrombosis I: Introduction
13
Venous thrombosis, the most common disorder of the veins, involves the formation of a thrombus or blood clot associated with vein inflammation. It can be classified as either superficial vein thrombosis or deep vein thrombosis.Superficial Vein Thrombosis: This involves the formation of a thrombus in a superficial vein, usually the greater or lesser saphenous vein. Though less severe than deep vein thrombosis (DVT), SVT can lead to complications if untreated.Deep Vein Thrombosis (DVT): This...
13
Anticoagulant Drugs: Vitamin K Antagonists and Direct Oral Anticoagulants
1.2K
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...
1.2K
Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies
14
The key difference between Superficial Vein Thrombosis (SVT) and Deep Vein Thrombosis (DVT) lies in their location and severity.Clinical ManifestationsSVT typically presents with localized pain, tenderness, and redness along the course of a superficial vein, often accompanied by a palpable, cord-like structure under the skin. This condition is usually less dangerous than DVT but can be uncomfortable and may lead to complications such as cellulitis or, rarely, a clot extension into the deep...
14


