在大血管阻塞中,大脑附带体中氧化,离子组成和酸平衡的明显变化大血管阻塞中风
Jörn Feick1, Mirko Pham1, Alexander G März1
1Department of Neuroradiology, University Hospital Würzburg, Josef-Schneider-Straße 11, 97080, Würzburg, Germany.
Clinical neuroradiology
|June 7, 2023
概括
脑卒中患者经历了血管内血栓切除术,脑血气和离子平衡发生了显著的变化,包括氧气减少和改变的/水平. 缺血半阴影中的这些动态变化与急性组织损伤相关.
科学领域:
- 神经学 神经学
- 神经外科 神经外科
- 关键护理医学 关键护理医学
背景情况:
- 大脑缺血,特别是中风,的特点是血液气体和离子平衡的中断.
- 区域性缺氧和 (Na+) 和 (K+) 的显著变化是实验模型中已知的特征.
- 在人类中风患者中,这些同源性乱的临床相关性需要进一步研究.
研究的目的:
- 为了研究中风引起的血液气体和离子恒温在脑半阴内的变化,经过内血管血栓切除术的患者.
- 评估这些生理变化与急性组织损伤之间的关系.
主要方法:
- 一项前性观察性研究,涉及366名中风患者,前部循环的大血管封闭 (LVO),接受内血管血栓切除 (EVT) 治疗.
- 从大脑附带动脉 (缺血动脉) 采集了手术内血气样本,并与51名患者的系统控制样本相匹配.
- 分析的重点是氧的部分压力 (paO2),K+和Na+度,Na+:K+比率和pH.
主要成果:
- 与系统样本相比,在缺血区域观察到大脑氧气局部压力 (paO2) 和K+度的显著降低.
- 大脑Na+:K+比率升高,与基线组织完整性负相关.
- 大脑Na+度与心脏病发作的进展有着强烈的正相关性,大脑pH值变得更加性,随着时间的推移,转向酸化.
结论:
- 在人脑缺血期间,中风引起的氧气供应,离子组成和酸平衡的改变在半阴影区域内动态地发生.
- 这些生理变化与急性组织损伤程度和心脏病发作的进展有直接关系.
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