小肺血管中的血小板聚集和肝移植期间的死亡
S Gosseye1, L van Obbergh, B Weynand
1Department of Pathology, Saint Luc University Hospital, Catholic University of Louvain, Brussels, Belgium.
Lancet (London, England)
|August 31, 1991
概括
儿科肝移植患者的突然死亡与血小板聚合物的肺血管阻塞有关. 这些发现表明肝移植期间可能出现并发症,影响肺循环.
科学领域:
- 儿科重症监护医药 儿科重症监护医药
- 移植手术是一种移植手术.
- 血液学 血液学 血液学
背景情况:
- 突然死亡是儿科肝移植中罕见但毁灭性的并发症.
- 肺血管并发症可以显著影响患者移植后的结果.
研究的目的:
- 为了调查儿科肝移植接受者突然死亡的潜在原因.
- 为了确定与外科手术期间并发症相关的组织学发现.
主要方法:
- 在肝移植期间突然死亡的10名儿童的尸检检查.
- 对血小板聚合物的肺血管组织学分析.
- 对临床数据的审查,包括肺动脉压力变化.
主要成果:
- 在所有10名患者中都观察到由血小板聚合物引起的小肺血管的广泛阻塞.
- 7名患者的肺动脉压力变化与急性肺血管阻塞一致.
- 血小板聚合物主要局限于肺部,而不是其他组织.
结论:
- 肺血管中的血小板聚合可能是儿科肝移植后突然死亡的重要因素.
- 诸如血管内导管,输血和手术碎片等因素可能导致这种聚合.
- 需要进一步的研究来阐明确切的机制,并制定预防策略.
相关概念视频
Structure and Function of Platelets
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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, with...
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, with...
Formation of the Platelet Plug
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...


