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Study of EEG sensitivity and specificity in loss of conciousness in adolescents
Published online by Cambridge University Press: 27 August 2024
Abstract
Although the etiological diagnosis of loss of consciousness is essentially based on a careful history and clinical examination, electroencephalography (EEG) remains an important investigative tool.
The aim of this study was to identify the value of EEG in the management of adolescents with recurrent bouts of fainting
This was a retrospective descriptive study conducted from January 2019 to May 2022. We included all adolescents referred to the functional explorations department at Habib Bourguiba hospital, Tunisia for Electroencephalogram (EEG) as part of a workup to explore recurrent episodes of loss of consciousness.
A total of 55 adolescents were included in this study, with a mean age of 15.4±2.3 and a 72.4% female proportion.The delay between the EEG and the onset of the seizure was greater than one week.67.3% of patients were referred by the child psychiatry department.29.1% of the 55 EEG reports were pathological. Epileptiform discharges were noted in 56.3% of adolescents. Slow waves were found in 43.7% of cases. The location of the abnormalities was predominantly frontal. Patients with temporal EEG anomalies had a notion of ascending epigastric pain preceding loss of consciousness in 90% of cases. Adolescents with EEGs containing epileptiform abnormalities had a history of paroxysmal movements in 30% of cases. The sensitivity of the EEG was estimated to be around 25%, and the specificity around 79%.
Although the clinical examination is of great importance in the etiological diagnosis of loss of consciousness, the EEG remains a complementary examination of non-negligible interest in the etiological investigation.
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- European Psychiatry , Volume 67 , Special Issue S1: Abstracts of the 32nd European Congress of Psychiatry , April 2024 , pp. S445 - S446
- Creative Commons
- This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
- Copyright
- © The Author(s), 2024. Published by Cambridge University Press on behalf of European Psychiatric Association
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