ICP,CPP,PRx和CPPopt的时间动态与自发性脑内出血的结果有关
Journal of neurosurgery
|February 21, 2025
概括
维持大脑 perfusion 压力 (CPP) 在 80 mm Hg 以上,避免高内压力 (ICP) 可能会改善自发性脑内出血 (sICH) 患者的结果. 压力反应率指数 (PRx) 并没有独立预测结果,但影响了安全的ICP和CPP范围.
科学领域:
- 神经临界护理是指神经临界护理.
- 神经学 神经学
- 密集护理医学是密集护理的医学.
背景情况:
- 自发性脑内出血 (sICH) 的最佳神经密集护理 (NIC) 目标仍未得到充分研究.
- 大脑压力自我调节障碍的作用,例如压力反应率指数 (PRx),需要在sICH中澄清.
- 自主监管CPP目标 (CPPopt) 与sICH中的固定CPP目标的优越性需要调查.
研究的目的:
- 探索内压力 (ICP),PRx,大脑输液压 (CPP) 和CPPopt在SICH患者中的作用.
- 为了确定NIC单位中SICH管理的最佳ICP和CPP值.
- 评估自我调节障碍对sICH结果的影响.
主要方法:
- 在184名成人sICH患者的观察研究中,ICH体积大于10毫升.
- 包括在前7天内超过12小时ICP监测的患者.
- 分析了与临床结果相关的ICP,CPP,PRx和CPPopt (有利与不利).
主要成果:
- 75%的患者有良好的结果 (在出院时有意识).
- 较低的ICP (> 25 mm Hg) 和较高的CPP (> 80 mm Hg) 独立地与有利的结果相关.
- PRx与结果没有独立的相关性,但更高的PRx值缩小了安全的ICP和CPP范围.
结论:
- 保持CPP> 80毫米升,避免ICP> 20-25毫米升可能有利于患有大ICH体积的SICH患者.
- PRx不是一个独立的预测指标,但表明大脑血管压力调节的改变.
- 需要进一步的研究来完善SICH管理的NIC目标.
相关概念视频
Ischemic Stroke ll: Pathophysiology
68
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...
68
Hemorrhagic Stroke l: Introduction
34
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...
34
Hemorrhagic Stroke ll: Pathophysiology
52
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...
52
Increased Intracranial Pressure l: Introduction
30
Intracranial hypertension is a sustained elevation of intracranial pressure (ICP) above 22 mm Hg. In supine adults, normal ICP is ~7–15 mm Hg.The rigid, nonexpandable cranium contains three components—brain tissue, blood, and cerebrospinal fluid (CSF)—that total ~1,700 mL in a typical adult: 1,400 mL brain (~80%), 150 mL blood (~10%), and 150 mL CSF (~10%). According to the Monro–Kellie doctrine, total intracranial volume is effectively fixed. When one component...
30
Increased Intracranial Pressure ll: Pathophysiology
39
Increased intracranial pressure (ICP) refers to a potentially life-threatening rise in pressure inside the skull. This usually happens when there is a major change in the volume of brain tissue, blood, or cerebrospinal fluid (CSF) — the three components inside the skull. According to the Monro-Kellie doctrine, if the volume of one component increases, the volumes of the other components must decrease to maintain normal pressure. If this does not happen, ICP rises.The process often begins...
39
Cerebral Edema ll: Pathophysiology
31
Vasogenic edema is a major form of cerebral edema characterized by abnormal accumulation of fluid in the brain’s extracellular space due to disruption of the blood–brain barrier (BBB). The BBB is a specialized structure composed of endothelial cells connected by tight junctions, supported by astrocytic endfeet and a basement membrane. Under normal conditions, it tightly regulates the movement of ions, proteins, and solutes between the bloodstream and brain parenchyma. When this...
31


