Guidelines for recording/analyzing quantitative EEG and evoked potentials: Part II. Clinical aspects

Departamento de Mapeamento Topográfico, Sociedade Brasileira de Neurofisiologia Clínica, São Paulo, Brasil.
Arquivos de Neuro-Psiquiatria (Impact Factor: 0.84). 04/1999; 57(1):132-46.
Source: PubMed


Digital EEG (DEEG) and quantitative EEG (QEEG) are recently developed tools present in many clinical situations. Besides showing didactic and research utility, they may also have a clinical role. Although a considerable amount of scientific literature has been published related to QEEG, many controversies still subsist regarding its clinical utilization. Clinical applications are: 1. DEEG is already an established substitute for conventional EEG, representing a clear technical advance. 2. Certain QEEG techniques are an established addition to DEEG for: 2a) screening for epileptic spikes or seizures in long-term recordings; 2b) Operation room and intensive care unit EEG monitoring. 3. Certain QEEG techniques are considered possible useful additions to DEEG: 3a) topographic voltage and dipole analysis in epilepsy evaluations; 3b) frequency analysis in cerebrovascular disease and dementia, mostly when other tests have been inconclusive. 4. QEEG remains investigational for clinical use in postconcussion syndrome, learning disability, attention disorders, schizophrenia, depression, alcoholism and drug abuse. EEG brain mapping and other QEEG techniques should be clinically used only by physicians highly skilled in clinical EEG interpretation and as an adjunct to traditional EEG work.

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Available from: Renato Anghinah, Feb 28, 2015
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    • "A Braintech 3.0 (EMSA " Equipamentos Médicos " ) was the recording hardware. Impedance was maintained below 10 K, and the electrodes were placed according to the International 10–20 System [5] [20]. The interconnected ear lobe electrodes reference (without resistor ) is standard in our laboratory, despite the fact that there are controversies regarding which reference is the best [21] [22]. "
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