静脉血栓塞栓症在探索类人类太空飞行中的探索类
Aerospace medicine and human performance
|December 29, 2023
概括
太空飞行带来了静脉血栓栓塞 (VTE) 的风险,原因是血液动力学和凝固的改变. 宇航员,特别是使用口服避孕药的女性,面临着增加的VTE风险,需要改进诊断和对策.
科学领域:
- 太空医学 太空医学
- 生理学 生理学 生理学
- 血液学 血液学 血液学
背景情况:
- 在太空飞行期间发现的深静脉血栓症需要了解静脉血栓栓塞 (VTE) 的风险.
- 目前对太空飞行中VTE机制,风险和对策的知识需要综合.
研究的目的:
- 在太空飞行背景下审查和综合有关静脉血栓塞栓症 (VTE) 的现有证据.
主要方法:
- 进行了从创立到2023年4月的文献审查.
- 在PubMed中搜索了关于太空飞行/无重量和静脉血栓/栓塞的人类研究.
- 不包括细胞和动物模型.
主要成果:
- 确定了63篇相关论文,包括原始研究和评论.
- 关键发现包括改变静脉血动力学,增加凝血标志物 (纤维素),低蛋白血症和免疫功能障碍.
- 妇女使用口服避孕药是额外的危险因素.
结论:
- 空间中的液体移动会导致静脉静止,内皮损伤和凝血激活.
- 由于生理因素和口服避孕药,女性宇航员面临复杂的静脉瘤风险.
- 未来的努力应集中在增强诊断成像 (例如,载体流成像) 和生物标志物 (例如,白蛋白,p-selectin) 上.
相关概念视频
Esophageal Varices-I: Introduction
144
Esophageal varices are dilated, tortuous veins which are found mainly in the submucosa of the lower esophagus but which may also appear higher up or extend into the stomach. They develop due to increased pressure in the portal venous system, often as a result of liver cirrhosis. This condition scars and damages the liver, impeding normal blood flow through the portal vein. To compensate, blood seeks alternative pathways, forming fragile new vessels (varices) in the esophagus and stomach. These...
144
Venous Return
4.3K
The circulatory system plays a crucial role in ensuring the optimal functioning of the human body. One of its critical components is venous return - the process that completes the blood circulation cycle. This article will delve into the concept of venous return, how it works, and its significance to our health.
What is Venous Return?
Venous return refers to the rate at which blood flows back to the heart from the body's peripheral veins. It's an integral part of the circulatory system...
What is Venous Return?
Venous return refers to the rate at which blood flows back to the heart from the body's peripheral veins. It's an integral part of the circulatory system...
4.3K


