塞沃弗兰麻醉对MRI-正常海马体内手术内峰值,高频振荡和相振幅合的影响
Riju Dahal1, Kentaro Tamura1, Dong-Sheng Pan2
1Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan.
概括
在手术期间,sevoflurane 麻醉剂可以增强在性海马体中的性生物标志物. 矛盾的是,它增加了非发性区域的波纹和快速波纹,有助于手术目标的识别.
科学领域:
- 神经科学是一个神经科学.
- 发病学 (Epileptology) 是一个专业的学科.
- 麻醉学 麻醉学
背景情况:
- 可吸收的叶往往在MRI上呈现出正常的海马体.
- 确定发性区域对于手术干预至关重要.
- 术内电皮图 (iEEG) 可以帮助定位发作发作区域.
研究的目的:
- 评估sevoflurane麻醉对MRI正常海马体中电生理学生物标志物的影响.
- 评估手术内电皮质谱在sevoflurane施用期间识别发性海马的有用性.
主要方法:
- 11名患有MRI正常海马和难治性的患者接受了iEEG.
- 根据发作发作区域,患者被分为Ictal (+) 和Ictal (-) 组.
- 在不同度的赛沃氨酸 (0.5和1.5MAC) 下进行了iEEG.
- 分析了尖峰率,高频振荡 (HFO) 和相幅合 (使用调制指数).
主要成果:
- 在Ictal (+) 组 (P < 0.01) 中,sevoflurane显著增加了尖峰,尖峰上的波纹,尖峰上的快波纹,以及MI HFO ((3-4 Hz)) (P < 0.01).
- 伊克塔尔 (-) 组显示波纹和快波纹的矛盾增加 (P < 0.05).
结论:
- 在iEEG期间,sevoflurane以剂量依赖的方式增强了性海马中的性生物标志物.
- 矛盾的是,塞沃弗兰在非发性海马体中增加HFO.
- 这些发现支持使用增强sevoflurane的iEEG用于精确的手术准和保存健康的大脑组织.
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