脑梗死患者异常脑电图活动的来源。

Clinical EEG (electroencephalography) Pub Date : 2000-10-01 DOI:10.1177/155005940003100403

A Fernández-Bouzas, T Harmony, T Fernández, J Silva-Pereyra, P Valdés, J Bosch, E Aubert, G Casián, G Otero Ojeda, J Ricardo, A Hernández-Ballesteros, E Santiago

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引用次数: 51

摘要

记录了16例脑卒中患者在三个不同发展阶段的脑电图。利用频域VARETA计算每0.39 Hz的脑电源。4例慢性患者中有2例的主要来源在三角洲带内，67%的急性或亚急性期患者出现水肿(细胞毒性或血管源性)。此外，所有患者在θ波段均表现出异常活动。皮层或皮质下梗死异常活动的来源位于病变周围的皮层。在梗死部位，观察到脑电功率下降。异常θ波功率的来源与水肿和/或缺血半暗区一致。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Sources of abnormal EEG activity in brain infarctions.

EEGs from 16 patients with stroke in three different stages of evolution were recorded. EEG sources were calculated every 0.39 Hz by frequency domain VARETA. The main source was within the delta band in 2 out of 4 chronic patients, and in 67% of the patients in the acute or subacute stages when edema (cytotoxic or vasogenic) was present. Moreover, all patients showed abnormal activity in the theta band. Sources of abnormal activity in cortical or corticosubcortical infarcts were located in the cortex, surrounding the lesion. At the site of the infarct, a decrease of EEG power was observed. Sources of abnormal theta power coincided with edema and/or ischemic penumbra.

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