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开放的头骨模型用于研究内高血压中脑血管动态

Rohan Jaishankar¹, Daniel Teichmann², Alison Hayward³

¹Institute for Medical Engineering & Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Department of Electrical Engineering & Computer Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.

Journal of neuroscience methods

|June 16, 2024

概括

研究人员开发了一种用于神经监测的新型猪模型,使可靠的内压力 (ICP) 操纵和超声记录成为可能. 这种模型克服了研究大型动物上升的ICP现有方法的局限性.

科学领域:

神经科学是一个神经科学.
医疗器械医疗器械
动物模型动物模型

背景情况:

非侵入性神经监测研究是广泛的,但临床验证是有限的,特别是在增加的内压力 (ICP).
现有的大型动物模型用于ICP监测通常使用洞技术,这可能是由于猪的头骨厚度而具有挑战性,并阻碍了超声波的使用.

研究的目的:

开发和验证用于神经监测的大型单边脑切除术猪模型.
为了使超声波引导的腹腔内导管放置用于同时进行ICP和脑血流记录.
通过使用微处理器控制的系统,在广泛范围内可靠地操纵ICP.

主要方法:

在猪模型中进行了大型单侧切除术.
使用超声波引导放置一个心室内导管被使用.
一个微处理器控制的执行器为ICP操纵提供了可控的盐水输液.
进行了长时间的ICP和脑血流记录.

主要成果:

该模型证明了可重复性,在12只动物中产生了超过80小时的高准确度生理记录.
内压力 (ICP) 在2至78mmHg的范围内被可逆和可重复地操纵.
ICP 档案包括阶段性升高,平原波和极端升高 (>60 mmHg),模拟临床紧急情况.
得到了验证的导管放置和长时间的脑血流速度记录.

结论:

半脑切除术模型提供经过验证的腹腔导管放置和可靠的ICP操纵.
该模型克服了传统孔方法的局限性,特别是在超声波应用中.
它有助于长期的神经监测和临床相关范围内的ICP研究.

关键词:

半脑膜切除术 (hemicraniectomy) 是一个切除术.内高血压是什么意思内压力内压力猪的模型模型.

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