相关实验视频
Updated: Jul 8, 2026
05:52
Prehospital Thrombolysis: A Manual from Berlin
Published on: November 26, 2013
21.8K
一种用于预测急性缺血性中风中出血转变的诺莫грам,接受静脉静脉血栓溶解,时间窗口延长
Hui Wei1, Ting Yang1, Miaomiao Liu1
1Department of Neurology, The Second Affiliated Hospital Zhejiang University School of Medicine, Hangzhou, China.
Medicine
|November 19, 2024
概括
这项研究开发了一种名谱,用于预测急性缺血性中风 (AIS) 患者的出血转变 (HT),这些患者接受了超过4.5小时的静脉血栓溶解 (IVT). 该工具准确识别风险患者,帮助治疗决策.
科学领域:
- 神经学 神经学
- 放射学 放射学是一门学科.
- 临床试验 临床试验
背景情况:
- 对于急性缺血性中风 (AIS) 的静脉血栓溶解 (IVT) 有一个延长的时间窗口超过4.5小时,通过神经成像启用.
- 血液转化 (HT) 仍然是IVT的重要并发症,特别是在延长的时间窗口中.
- 需要预测工具来管理经过延长IVT的AIS患者的HT风险.
研究的目的:
- 开发和验证用于在延长时间窗口内接受IVT的AIS患者中预测HT的诺姆图.
- 在这个患者群体中确定与HT相关的关键临床因素.
主要方法:
- 210名AIS患者接受IVT并延长时间窗口的回顾性审查 (2017年3月至2023年4月).
- 后勤回归分析以确定HT的预测因素.
- 使用接收机操作特征 (ROC) 曲线分析和校准图表开发和验证一个名ogram.
- 决策曲线分析 (DCA) 用于评估临床效用.
主要成果:
- 44名患者 (21.0%) 经历了HT.
- 对于HT的预测因素包括发病至针刺时间 (ONT),心房动和美国国立卫生研究院中风量表 (NIHSS) 的基线.
- 诺米图表显示出良好的预测准确性 (AUC=0.833) 具有78.9%的灵敏度和77.3%的特异性,并显示出良好的校准和临床适用性.
结论:
- 开发了一种易于使用的名图,用于预测在AIS患者接受IVT超过4.5小时后的HT.
- 这种名图可以作为一种有价值的风险分层工具,有可能改善患者选择延长IVT.
- 需要进一步的前性验证来确认其临床实用性.
相关概念视频
01:15Ischemic Stroke ll: Pathophysiology
An ischemic stroke occurs when a cerebral blood vessel becomes obstructed, most often by a thrombus or embolus, interrupting the delivery of oxygen and glucose to brain tissue. Because neurons rely on continuous aerobic metabolism, energy failure begins within minutes of reduced perfusion. The region receiving the least blood flow becomes the infarct core, an area of irreversible cellular death. Surrounding this core lies the penumbra, a zone of hypoperfused but still viable tissue that is...
01:17Hemorrhagic Stroke l: Introduction
A hemorrhagic stroke is an acute neurological event that occurs when a weakened cerebral blood vessel ruptures, allowing blood to accumulate within or around the brain. The sudden release of blood forms a focal hematoma that increases intracranial pressure, displaces neural tissue, and can obstruct cerebrospinal fluid pathways. These effects may be compounded by intraventricular extension of the hemorrhage, cerebral edema, or compression of adjacent structures, all of which contribute to...
01:29Hemorrhagic Stroke ll: Pathophysiology
A hemorrhagic stroke develops when a cerebral blood vessel ruptures, allowing blood to escape into the surrounding brain tissue, as in intracerebral hemorrhage (ICH), or into the subarachnoid space, as in subarachnoid hemorrhage (SAH). Because the skull is a rigid compartment, the sudden presence of extravascular blood rapidly increases intracranial pressure and compresses adjacent neural structures, leading to immediate tissue injury and impaired cerebral perfusion.Mass Effect and Primary...