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Resting State EEG Characteristics During Sedation With Midazolam or Propofol in Older Subjects
Clinical EEG and Neuroscience ( IF 2 ) Pub Date : 2019-05-20 , DOI: 10.1177/1550059419838938
Tianne Numan 1 , Edwin van Dellen 2, 3 , Frank P Vleggaar 4 , Paul van Vlieberghe 4 , Cornelis J Stam 5 , Arjen J C Slooter 1
Affiliation  

Background. Despite widespread application, little is known about the neurophysiological effects of light sedation with midazolam or propofol, particularly in older subjects. The aim of this study was to assess the effects of light sedation with midazolam or propofol on a variety of EEG measures in older subjects. Methods. In patients (≥60 years without neuropsychiatric disease such as delirium), 2 EEG recordings were performed, before and after administration of either midazolam (n = 22) or propofol (n = 26) to facilitate an endoscopic procedure. Power spectrum, functional connectivity, and network topology based on the minimum spanning tree (MST) were compared within subjects. Results. Midazolam and propofol administration resulted in Richmond Agitation and Sedation Scale levels between 0 and −4 and between −2 and −4, respectively. Both agents altered the power spectra with increased delta (0.5-4 Hz) and decreased alpha (8-13 Hz) power. Only propofol was found to significantly reduce functional connectivity. In the beta frequency band, the MST was more integrated during midazolam sedation. Propofol sedation resulted in a less integrated network in the alpha frequency band. Conclusion. Despite the different levels of light sedation with midazolam and propofol, similar changes in power were found. Functional connectivity and network topology showed differences between midazolam and propofol sedation. Future research should establish if these differences are caused by the different levels of sedation or the mechanism of action of these agents.

中文翻译:

老年受试者使用咪达唑仑或丙泊酚镇静期间的静息状态脑电图特征

背景。尽管应用广泛,但对咪达唑仑或丙泊酚轻度镇静的神经生理学影响知之甚少,尤其是在老年受试者中。本研究的目的是评估咪达唑仑或丙泊酚轻度镇静对老年受试者各种脑电图测量的影响。方法。在患者(≥60 岁无谵妄等神经精神疾病)中,在给予咪达唑仑(n = 22)或丙泊酚(n = 26)之前和之后进行了 2 次 EEG 记录以促进内窥镜手术。功率谱、功能连通性和基于最小生成树 (MST) 的网络拓扑在受试者内进行了比较。结果。咪达唑仑和丙泊酚给药导致里士满躁动和镇静量表水平分别介于 0 和 -4 之间以及介于 -2 和 -4 之间。两种代理都通过增加 delta (0.5-4 Hz) 和降低 alpha (8-13 Hz) 功率来改变功率谱。仅发现丙泊酚可显着降低功能连通性。在β频段,在咪达唑仑镇静期间,MST的整合度更高。丙泊酚镇静导致 alpha 频带中的网络集成度较低。结论。尽管咪达唑仑和丙泊酚的轻度镇静程度不同,但发现了相似的功效变化。功能连接和网络拓扑显示咪达唑仑和丙泊酚镇静之间存在差异。未来的研究应该确定这些差异是否是由不同的镇静水平或这些药物的作用机制引起的。仅发现丙泊酚可显着降低功能连通性。在β频段,在咪达唑仑镇静期间,MST的整合度更高。丙泊酚镇静导致 alpha 频带中的网络集成度较低。结论。尽管咪达唑仑和丙泊酚的轻度镇静程度不同,但发现了相似的功效变化。功能连接和网络拓扑显示咪达唑仑和丙泊酚镇静之间存在差异。未来的研究应该确定这些差异是否是由不同的镇静水平或这些药物的作用机制引起的。仅发现丙泊酚可显着降低功能连通性。在β频段,在咪达唑仑镇静期间,MST的整合度更高。丙泊酚镇静导致 alpha 频带中的网络集成度较低。结论。尽管咪达唑仑和丙泊酚的轻度镇静程度不同,但发现了相似的功效变化。功能连接和网络拓扑显示咪达唑仑和丙泊酚镇静之间存在差异。未来的研究应该确定这些差异是否是由不同的镇静水平或这些药物的作用机制引起的。尽管咪达唑仑和丙泊酚的轻度镇静程度不同,但发现了相似的功效变化。功能连接和网络拓扑显示咪达唑仑和丙泊酚镇静之间存在差异。未来的研究应该确定这些差异是否是由不同的镇静水平或这些药物的作用机制引起的。尽管咪达唑仑和丙泊酚的轻度镇静程度不同,但发现了相似的功效变化。功能连接和网络拓扑显示咪达唑仑和丙泊酚镇静之间存在差异。未来的研究应该确定这些差异是否是由不同的镇静水平或这些药物的作用机制引起的。
更新日期:2019-05-20
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