Braga Aline Souza Marques da Silva, Assis Bruno Della Ripa Rodrigues, Ribeiro Jamil Thiago Rosa, Polla Patrícia Maria Sales, Pereira Breno José Hulle, Fonseca Ronaldo Guimarães, Betting Luiz Eduardo
Arq Neuropsiquiatr. 2013 Dec;71(12):937-42. doi: 10.1590/0004-282X20130204.
To investigate the use of quantitative EEG (qEEG) in patients with acute encephalopathies (AEs) and EEG background abnormalities.
Patients were divided into favorable outcome (group A, 43 patients) and an unfavorable outcome (group B, 5 patients). EEGLAB software was used for the qEEG analysis. A graphic of the spectral power from all channels was generated for each participant. Statistical comparisons between the groups were performed.
In group A, spectral analysis revealed spectral peaks (theta and alpha frequency bands) in 84% (38/45) of the patients. In group B, a spectral peak in the delta frequency range was detected in one patient. The remainder of the patients in both groups did not present spectral peaks. Statistical analysis showed lower frequencies recorded from the posterior electrodes in group B patients.
qEEG may be useful in the evaluations of patients with AEs by assisting with the prognostic determination.
探讨定量脑电图（qEEG）在急性脑病（AE）患者及脑电图背景异常患者中的应用。
将患者分为预后良好组（A组，43例患者）和预后不良组（B组，5例患者）。使用EEGLAB软件进行qEEG分析。为每位参与者生成所有通道的频谱功率图。对两组进行统计学比较。
在A组中，频谱分析显示84%（38/45）的患者存在频谱峰值（θ和α频段）。在B组中，1例患者在δ频率范围内检测到频谱峰值。两组其余患者均未出现频谱峰值。统计学分析显示，B组患者后电极记录的频率较低。
qEEG在评估AE患者预后方面可能有帮助。
