相关实验视频
Updated: Jan 12, 2026
16:31
Fixed Volume or Fixed Pressure: A Murine Model of Hemorrhagic Shock
Published on: June 6, 2011
25.5K
在出血冲击后持续的内皮细胞功能障碍:晶体质是罪祸首
Matthew Vasquez1, Sarah Abdullah1, Chavi Rehani1
1Program in Trauma, R Adams Cowley Shock Trauma Center University of Maryland, Baltimore, MD.
Shock (Augusta, Ga.)
|October 30, 2025
概括
在控制出血后使用晶体液与正在进行的内皮和凝血问题有关. 这表明需要在出血后使用不同的复苏方法来改善患者的治疗结果.
科学领域:
- 创伤复苏 创伤复苏
- 关键护理医学 关键护理医学
- 血液性冲击管理 血液性冲击管理
背景情况:
- 目前的创伤护理强调早期使用血液制品和有限的晶类药物,以改善结果.
- 关于在成功控制出血后使用晶类药物的影响的数据有限.
- 这项研究调查了这样的假设:在早期的复苏后护理中给予晶类药物可能会加剧内皮功能障碍.
研究的目的:
- 检查在出血后的控制期内给予晶体液与内皮功能障碍,凝血和炎症标志物之间的关联.
- 评估晶体体体积和临床结果 (如器官衰竭和重症监护室 (ICU) 停留时间) 之间的相关性.
主要方法:
- 对69名患有出血性休克的患者进行前性观察性研究.
- 在临床时,在手术室 (OR) 和在ICU的24小时,48小时和72小时后收集晶体化物给药数据.
- 血液样本分析炎症,内皮功能障碍 (例如,syndecan-1) 和凝血 (例如,INR) 的指标,使用Luminex测定.
主要成果:
- 患者在前24小时内平均获得4.7L的晶体化物,在OR和ICU中给予了大量体积.
- 与对照人群相比,在入院时观察到内皮细胞,凝血和炎症标记的升高.
- 24小时的晶体体体积与syndecan-1和INR相关,表明持续的内皮功能障碍.
- 后来的结晶体总量 (48小时和72小时) 与序列器官衰竭评估 (SOFA) 评分的增加,更长的ICU停留时间和更多的呼吸机日相关.
结论:
- 在临床实践中,即使在控制出血后,晶体质药物的使用仍然存在.
- 这种做法与持续的内皮和凝血功能障碍有关.
- 在出血后阶段需要使用替代性复苏策略来减轻这些不良影响.
相关概念视频
01:24Blood Pressure Imbalances and Circulatory Shock
1.5K
Disorders affecting blood volume, vascular tone, or vascular function can disrupt vascular homeostasis, including conditions like hypertension, hemorrhage, and shock.
Blood Pressure: Hypertension and Hypotension
Normal blood pressure is 120/80 mm Hg. Elevated blood pressure is 120-129/under 80 mm Hg. Hypertension, warranting treatment at 130/80 mm Hg, is often asymptomatic and can lead to severe cardiovascular events, aneurysms, peripheral arterial disease, chronic renal disease, or cardiac...
Blood Pressure: Hypertension and Hypotension
Normal blood pressure is 120/80 mm Hg. Elevated blood pressure is 120-129/under 80 mm Hg. Hypertension, warranting treatment at 130/80 mm Hg, is often asymptomatic and can lead to severe cardiovascular events, aneurysms, peripheral arterial disease, chronic renal disease, or cardiac...
1.5K
01:16Vascular Spasm
3.3K
The vascular phase, also known as vasospasm, is the initial stage of hemostasis, crucial for preventing excessive bleeding when a blood vessel is injured. After a vessel is cut, nerves in the damaged area trigger pain and other sensory impulses. Simultaneously, the smooth muscles in the vessel wall contract, resulting in a vascular spasm. This contraction reduces the vessel's diameter at the injury site, slowing or stopping blood loss through the vessel wall. Vascular spasms typically last...
3.3K
01:05Introduction to Hemostasis
13.2K
Hemostasis is a complex physiological process that prevents excessive bleeding when a blood vessel is injured. It's crucial for maintaining the integrity of the circulatory system, as it ensures that our blood remains fluid while still within the vascular network and yet clots to prevent blood loss upon vessel injury.
The three phases of hemostasis involve many clotting factors present in plasma and several substances released by platelets and injured tissue cells. It is a fast, localized,...
The three phases of hemostasis involve many clotting factors present in plasma and several substances released by platelets and injured tissue cells. It is a fast, localized,...
13.2K