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Absent posterior alpha rhythm: An indirect indicator of seizure disorder?
HYPOTHESIS: Absence of normal posterior alpha rhythm is an indirect indicator of seizure disorder. MATERIALS AND METHODS: Study group consists of 116 child and adolescent patients in the age range of 5-17 years, with established history of seizure disorder. Follow-up cases of seizure disorder formed...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Medknow Publications & Media Pvt Ltd
2014
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3927247/ https://www.ncbi.nlm.nih.gov/pubmed/24574560 http://dx.doi.org/10.4103/0019-5545.124715 |
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author | Aich, Tapas Kumar |
author_facet | Aich, Tapas Kumar |
author_sort | Aich, Tapas Kumar |
collection | PubMed |
description | HYPOTHESIS: Absence of normal posterior alpha rhythm is an indirect indicator of seizure disorder. MATERIALS AND METHODS: Study group consists of 116 child and adolescent patients in the age range of 5-17 years, with established history of seizure disorder. Follow-up cases of seizure disorder formed first comparison group, patients with a history of pseudo-seizures formed second comparison group and patients with a history of headache formed the third comparison group. RESULTS: In significant 48.3% (56) patients within the study group there was no visible alpha rhythm. Whereas, this absent alpha rhythm criteria was seen in only 11.2% (4) patients in first and 15% (8) patients in second and in only 6.1% (2) patients in third comparison groups. DISCUSSION: Absent alpha rhythm- a criterion seems to have a certain amount of specificity for electroencephalograms (EEGs) with seizure disorder patients. Presence of seizure activity and absence of alpha activity in EEG significantly correlated to each other (Significant at < 0.01 level). Absent alpha rhythm appears to be a state marker rather than a trait marker of seizure disorder. |
format | Online Article Text |
id | pubmed-3927247 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Medknow Publications & Media Pvt Ltd |
record_format | MEDLINE/PubMed |
spelling | pubmed-39272472014-02-26 Absent posterior alpha rhythm: An indirect indicator of seizure disorder? Aich, Tapas Kumar Indian J Psychiatry Original Article HYPOTHESIS: Absence of normal posterior alpha rhythm is an indirect indicator of seizure disorder. MATERIALS AND METHODS: Study group consists of 116 child and adolescent patients in the age range of 5-17 years, with established history of seizure disorder. Follow-up cases of seizure disorder formed first comparison group, patients with a history of pseudo-seizures formed second comparison group and patients with a history of headache formed the third comparison group. RESULTS: In significant 48.3% (56) patients within the study group there was no visible alpha rhythm. Whereas, this absent alpha rhythm criteria was seen in only 11.2% (4) patients in first and 15% (8) patients in second and in only 6.1% (2) patients in third comparison groups. DISCUSSION: Absent alpha rhythm- a criterion seems to have a certain amount of specificity for electroencephalograms (EEGs) with seizure disorder patients. Presence of seizure activity and absence of alpha activity in EEG significantly correlated to each other (Significant at < 0.01 level). Absent alpha rhythm appears to be a state marker rather than a trait marker of seizure disorder. Medknow Publications & Media Pvt Ltd 2014 /pmc/articles/PMC3927247/ /pubmed/24574560 http://dx.doi.org/10.4103/0019-5545.124715 Text en Copyright: © Indian Journal of Psychiatry http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Article Aich, Tapas Kumar Absent posterior alpha rhythm: An indirect indicator of seizure disorder? |
title | Absent posterior alpha rhythm: An indirect indicator of seizure disorder? |
title_full | Absent posterior alpha rhythm: An indirect indicator of seizure disorder? |
title_fullStr | Absent posterior alpha rhythm: An indirect indicator of seizure disorder? |
title_full_unstemmed | Absent posterior alpha rhythm: An indirect indicator of seizure disorder? |
title_short | Absent posterior alpha rhythm: An indirect indicator of seizure disorder? |
title_sort | absent posterior alpha rhythm: an indirect indicator of seizure disorder? |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3927247/ https://www.ncbi.nlm.nih.gov/pubmed/24574560 http://dx.doi.org/10.4103/0019-5545.124715 |
work_keys_str_mv | AT aichtapaskumar absentposterioralpharhythmanindirectindicatorofseizuredisorder |