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24. LOCAL TUMOR PROGRESSION IS A RISK FACTOR FOR POSTOPERATIVE SEIZURES IN PATIENTS WITH BRAIN METASTASIS
PURPOSE: Brain tumor-related epilepsy (BTRE) occurs in 20–35% of patients with brain metastases (BM) and influences morbidity, mortality as well as quality of life. Several factors associated with seizure risk have been identified, including incomplete resection and supratentorial localization of BM...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Oxford University Press
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7401359/ http://dx.doi.org/10.1093/noajnl/vdaa073.014 |
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author | Grossenbacher, Bettina Moors, Selina Lareida, Anna Roth, Patrick Imbach, Lukas Le Rhun, Emilie Weller, Michael Wolpert, Fabian |
author_facet | Grossenbacher, Bettina Moors, Selina Lareida, Anna Roth, Patrick Imbach, Lukas Le Rhun, Emilie Weller, Michael Wolpert, Fabian |
author_sort | Grossenbacher, Bettina |
collection | PubMed |
description | PURPOSE: Brain tumor-related epilepsy (BTRE) occurs in 20–35% of patients with brain metastases (BM) and influences morbidity, mortality as well as quality of life. Several factors associated with seizure risk have been identified, including incomplete resection and supratentorial localization of BM. In primary brain tumors like lower grade glioma, tumor growth is associated with seizures. However, it remains to be elucidated whether this holds also true for patients with BM. METHOD: We identified 295 patients who had been diagnosed with BM between 2004 and 2014 by review of our electronic chart system. Occurrence of new onset of postoperative seizures dependent on BM progression was tested during the clinical course as well as pattern of progression and previously described predictors of postoperative seizures. Chi-square test was used for univariate analysis, a Cox-regression model for multivariate testing. RESULTS: Postoperative seizures were observed in 49 of 295 patients (16.6%). Supratentorial localization (p=0.043, OR 4.45, 95% CI 1.1–19.3) and incomplete resection (p=0.018, OR 3.68, 95% CI 1.4–10.9), along with intracranial (p=0.038, OR 1.4, 95% CI 1.4–5.8) but not extracranial progression (p=0.729, OR 0.90, 95% CI 0.4–1.7) were confirmed as factors independently associated with postoperative seizures. Furthermore, there was a significantly higher rate of postoperatives seizures in patients with local progression (18 of 84 patients, 21.4 %) compared to those with distant brain progression (12 of 93 patients, 12.9%, p=0.042, Chi-square test). CONCLUSION: Here we define tumor progression as a risk factor for the development of postoperative seizures in a well defined cohort of BM patients. Extracranial tumor recurrence seems to be not significant for seizure risk. Subgroup analysis indicates that patients with local progression of BM are more prone to seizures than those with new, distant BM lesions. Patients with local tumor recurrence might thus be candidates for primary prophylaxis with antiepileptic drugs. |
format | Online Article Text |
id | pubmed-7401359 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Oxford University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-74013592020-08-06 24. LOCAL TUMOR PROGRESSION IS A RISK FACTOR FOR POSTOPERATIVE SEIZURES IN PATIENTS WITH BRAIN METASTASIS Grossenbacher, Bettina Moors, Selina Lareida, Anna Roth, Patrick Imbach, Lukas Le Rhun, Emilie Weller, Michael Wolpert, Fabian Neurooncol Adv Supplement Abstracts PURPOSE: Brain tumor-related epilepsy (BTRE) occurs in 20–35% of patients with brain metastases (BM) and influences morbidity, mortality as well as quality of life. Several factors associated with seizure risk have been identified, including incomplete resection and supratentorial localization of BM. In primary brain tumors like lower grade glioma, tumor growth is associated with seizures. However, it remains to be elucidated whether this holds also true for patients with BM. METHOD: We identified 295 patients who had been diagnosed with BM between 2004 and 2014 by review of our electronic chart system. Occurrence of new onset of postoperative seizures dependent on BM progression was tested during the clinical course as well as pattern of progression and previously described predictors of postoperative seizures. Chi-square test was used for univariate analysis, a Cox-regression model for multivariate testing. RESULTS: Postoperative seizures were observed in 49 of 295 patients (16.6%). Supratentorial localization (p=0.043, OR 4.45, 95% CI 1.1–19.3) and incomplete resection (p=0.018, OR 3.68, 95% CI 1.4–10.9), along with intracranial (p=0.038, OR 1.4, 95% CI 1.4–5.8) but not extracranial progression (p=0.729, OR 0.90, 95% CI 0.4–1.7) were confirmed as factors independently associated with postoperative seizures. Furthermore, there was a significantly higher rate of postoperatives seizures in patients with local progression (18 of 84 patients, 21.4 %) compared to those with distant brain progression (12 of 93 patients, 12.9%, p=0.042, Chi-square test). CONCLUSION: Here we define tumor progression as a risk factor for the development of postoperative seizures in a well defined cohort of BM patients. Extracranial tumor recurrence seems to be not significant for seizure risk. Subgroup analysis indicates that patients with local progression of BM are more prone to seizures than those with new, distant BM lesions. Patients with local tumor recurrence might thus be candidates for primary prophylaxis with antiepileptic drugs. Oxford University Press 2020-08-04 /pmc/articles/PMC7401359/ http://dx.doi.org/10.1093/noajnl/vdaa073.014 Text en © The Author(s) 2020. Published by Oxford University Press on behalf of the Society for Neuro-Oncology. http://creativecommons.org/licenses/by-nc/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com |
spellingShingle | Supplement Abstracts Grossenbacher, Bettina Moors, Selina Lareida, Anna Roth, Patrick Imbach, Lukas Le Rhun, Emilie Weller, Michael Wolpert, Fabian 24. LOCAL TUMOR PROGRESSION IS A RISK FACTOR FOR POSTOPERATIVE SEIZURES IN PATIENTS WITH BRAIN METASTASIS |
title | 24. LOCAL TUMOR PROGRESSION IS A RISK FACTOR FOR POSTOPERATIVE SEIZURES IN PATIENTS WITH BRAIN METASTASIS |
title_full | 24. LOCAL TUMOR PROGRESSION IS A RISK FACTOR FOR POSTOPERATIVE SEIZURES IN PATIENTS WITH BRAIN METASTASIS |
title_fullStr | 24. LOCAL TUMOR PROGRESSION IS A RISK FACTOR FOR POSTOPERATIVE SEIZURES IN PATIENTS WITH BRAIN METASTASIS |
title_full_unstemmed | 24. LOCAL TUMOR PROGRESSION IS A RISK FACTOR FOR POSTOPERATIVE SEIZURES IN PATIENTS WITH BRAIN METASTASIS |
title_short | 24. LOCAL TUMOR PROGRESSION IS A RISK FACTOR FOR POSTOPERATIVE SEIZURES IN PATIENTS WITH BRAIN METASTASIS |
title_sort | 24. local tumor progression is a risk factor for postoperative seizures in patients with brain metastasis |
topic | Supplement Abstracts |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7401359/ http://dx.doi.org/10.1093/noajnl/vdaa073.014 |
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