Inclusion criteria: Normal adults with age ≥ 18 years old.Ĥ- History of significant trauma to the headĦ-Subjects taking epileptogenic drugs (depolarizing muscle relaxant drugs).ħ- History or presence of neurological disorders or systemic diseases that one likely to affect CNS functions e.g. These subjects were relatives of patients, and working staff in Neurology Department, El-Sayed Galal Hospital, with age ranging from 18 – 75 years old, from January 2017 to July 2017.Īll subjects gave written consents before sharing in this work. The present study was carried out on 100 adult Egyptian subjects (64 males and 36 females). The present work was designed to study normal adult EEG and patterns of uncertain clinical significance. The presence of artifact and normal benign pattern may have major effect on how EEG is evaluated (Erp et al., 2012). Validation of the signals recorded in EEG is needed before any clinical investigation can be performed.
Understanding normal EEG and the benign variants will help to minimize over interpretation and possibly avoid over treatment of patients during routine clinical practice ( William et al., 2010). Certain benign patterns may be epileptiform, yet can occur in healthy individuals without epilepsy. EEG is unique in the ability to support a clinical diagnosis of epilepsy as epileptiform patterns merit careful consideration. Understanding normal EEG is critical in defining those patterns that are abnormal. INTRODUCTION Electroencephalography (EEG) is a mean of investigation of cortical and subcortical brain functional activity ( Dulac et al., 2013). Shebl Ramadan Samaha, *Ahmad Frag Ibrahimĭepartments of Clinical Physiology and ⃰ Neurology, Al-Azhar Faculty of Medicine Gamal Ahmed Shawer, ⃰ Kamel Mahmoud Hewedi, The prevalence of benign variants in EEG in participants was 15 %.Ĭonclusion: Recording EEG pattern in normal adults help in minimizing over-interpretation and over-treatment of patients. Among participants, there was epileptic activity recorded in 11 % of them.
The prevalence of artifacts in recorded EEG was 97% among participants. OIRDA and Mu Rhythm were more predominant in females, unlike FIRDA which was more predominant in males. Results: Fifteen percent of participants have benign variants in their recorded EEG including Mu Rhythm (4%), OIRDA (5%), and FIRDA (6%).
All were subjected to history taking, examination and EEG evaluation. Subjects and Method: The present study was conducted on 100 adult Egyptian subjects (64 males and 36 females). Objective: Study of normal adult EEG and patterns of uncertain clinical significance. Certain benign patterns may be epileptiform, yet can occur in healthy individuals without clinical epilepsy. Gamal Ahmed Shawer 1 Kamel Mahmoud Hewedi 2 Shebl Ramadan Samaha 1 Ahmad Frag Ibrahim 2 Mahmoud Ahmed Mohamed 1ġDepartments of Clinical Physiology, Al-Azhar Faculty of MedicineĢDepartments of Neurology, Al-Azhar Faculty of Medicineīackground: Electroencephalogram (EEG) is a mean of investigation of cortical and subcortical brain functional activity.
Firda eeg pdf#
STUDY OF NORMAL ADULT EEG AND PATTERNS OF UNCERTAIN CLINICAL SIGNIFICANCEĪrticle 12, Volume 46, Issue 4, Autumn 2017, -918 PDF ( 228.97 K)
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