Prognostic Role of Ictal Electroencephalographic Patterns in Extratemporal Epilepsy Surgery
Background: This study aimed to investigate the correlation of ictal onset patterns in scalp electroencephalography (EEG) in patients with refractory extratemporal lobe epilepsy with postsurgical outcome. Methods: This was a retrospective cohort study conducted between 2011 and 2015 in Kashani Epil...
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| Format: | Article |
| Language: | fas |
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Isfahan University of Medical Sciences
2017-10-01
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| Series: | مجله دانشکده پزشکی اصفهان |
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| Online Access: | http://jims.mui.ac.ir/index.php/jims/article/view/8573 |
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| author | Jafar Mehvari-Habibabadi Mohamad Zare Majid Barakatain Reza Basiratnia Nasim Tabrizi |
| author_facet | Jafar Mehvari-Habibabadi Mohamad Zare Majid Barakatain Reza Basiratnia Nasim Tabrizi |
| author_sort | Jafar Mehvari-Habibabadi |
| collection | DOAJ |
| description | Background: This study aimed to investigate the correlation of ictal onset patterns in scalp electroencephalography (EEG) in patients with refractory extratemporal lobe epilepsy with postsurgical outcome.
Methods: This was a retrospective cohort study conducted between 2011 and 2015 in Kashani Epilepsy Center, Isfahan, Iran, enrolling patients with refractory extratemporal epilepsy who underwent presurgical evaluation. Demographic, clinical, and imaging data, and also ictal findings during video-EEG monitoring were reviewed. The correlation between preoperative findings and 1-year postsurgical outcome was analyzed.
Findings: We reviewed 91 seizures of 27 patients. 49.5% of seizures were sleep-related. Secondary generalization occurred during 15.4% of seizures. The most common EEG pattern at ictal onset and the most frequent late pattern were rhythmic theta and rhythmic spike/sharp, respectively. Favorable 1-year outcome was observed in 74.1% of patients. Age of less than 35 years, lower number of antiepileptic drugs, and occurrence of EEG changes before clinical signs of seizure were more common in patients with favorable outcome. Secondary generalization and sleep-related seizures frequently associated with unfavorable postsurgical outcome.
Conclusion: Clinical and EEG findings during video-EEG monitoring can provide valuable information regarding postsurgical prognosis in patients with extratemporal lobe epilepsy. However, in order to reach a more accurate conclusion, intracranial monitoring and larger studies are required. |
| first_indexed | 2024-03-12T19:26:50Z |
| format | Article |
| id | doaj.art-9216616215a34ba0aa1a011f46def170 |
| institution | Directory Open Access Journal |
| issn | 1027-7595 1735-854X |
| language | fas |
| last_indexed | 2024-03-12T19:26:50Z |
| publishDate | 2017-10-01 |
| publisher | Isfahan University of Medical Sciences |
| record_format | Article |
| series | مجله دانشکده پزشکی اصفهان |
| spelling | doaj.art-9216616215a34ba0aa1a011f46def1702023-08-02T04:50:04ZfasIsfahan University of Medical Sciencesمجله دانشکده پزشکی اصفهان1027-75951735-854X2017-10-0135442101310212620Prognostic Role of Ictal Electroencephalographic Patterns in Extratemporal Epilepsy SurgeryJafar Mehvari-Habibabadi0Mohamad Zare1Majid Barakatain2Reza Basiratnia3Nasim Tabrizi4Associate Professor, Isfahan Neurosciences Research Center, Isfahan University of Medical Sciences, Isfahan, IranProfessor, Isfahan Neurosciences Research Center, Isfahan University of Medical Sciences, Isfahan, IranProfessor, Isfahan Neurosciences Research Center, Isfahan University of Medical Sciences, Isfahan, IranAssistant Professor, Isfahan Neurosciences Research Center, Isfahan University of Medical Sciences, Isfahan, IranFellowship, Department of Neurology, School of Medicine, Isfahan University of Medical Sciences, Isfahan AND Assistant Professor, Department of Neurology, School of Medicine, Mazandaran University of Medical Sciences, Sari, IranBackground: This study aimed to investigate the correlation of ictal onset patterns in scalp electroencephalography (EEG) in patients with refractory extratemporal lobe epilepsy with postsurgical outcome. Methods: This was a retrospective cohort study conducted between 2011 and 2015 in Kashani Epilepsy Center, Isfahan, Iran, enrolling patients with refractory extratemporal epilepsy who underwent presurgical evaluation. Demographic, clinical, and imaging data, and also ictal findings during video-EEG monitoring were reviewed. The correlation between preoperative findings and 1-year postsurgical outcome was analyzed. Findings: We reviewed 91 seizures of 27 patients. 49.5% of seizures were sleep-related. Secondary generalization occurred during 15.4% of seizures. The most common EEG pattern at ictal onset and the most frequent late pattern were rhythmic theta and rhythmic spike/sharp, respectively. Favorable 1-year outcome was observed in 74.1% of patients. Age of less than 35 years, lower number of antiepileptic drugs, and occurrence of EEG changes before clinical signs of seizure were more common in patients with favorable outcome. Secondary generalization and sleep-related seizures frequently associated with unfavorable postsurgical outcome. Conclusion: Clinical and EEG findings during video-EEG monitoring can provide valuable information regarding postsurgical prognosis in patients with extratemporal lobe epilepsy. However, in order to reach a more accurate conclusion, intracranial monitoring and larger studies are required.http://jims.mui.ac.ir/index.php/jims/article/view/8573EpilepsyElectroencephalographySurgeryPrognosis |
| spellingShingle | Jafar Mehvari-Habibabadi Mohamad Zare Majid Barakatain Reza Basiratnia Nasim Tabrizi Prognostic Role of Ictal Electroencephalographic Patterns in Extratemporal Epilepsy Surgery مجله دانشکده پزشکی اصفهان Epilepsy Electroencephalography Surgery Prognosis |
| title | Prognostic Role of Ictal Electroencephalographic Patterns in Extratemporal Epilepsy Surgery |
| title_full | Prognostic Role of Ictal Electroencephalographic Patterns in Extratemporal Epilepsy Surgery |
| title_fullStr | Prognostic Role of Ictal Electroencephalographic Patterns in Extratemporal Epilepsy Surgery |
| title_full_unstemmed | Prognostic Role of Ictal Electroencephalographic Patterns in Extratemporal Epilepsy Surgery |
| title_short | Prognostic Role of Ictal Electroencephalographic Patterns in Extratemporal Epilepsy Surgery |
| title_sort | prognostic role of ictal electroencephalographic patterns in extratemporal epilepsy surgery |
| topic | Epilepsy Electroencephalography Surgery Prognosis |
| url | http://jims.mui.ac.ir/index.php/jims/article/view/8573 |
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