Predictors of longitudinal seizure outcomes after epilepsy surgery in childhood

There is a paucity of data on longitudinal seizure outcome of children undergoing epilepsy surgery. All children (n = 132) who underwent resective epilepsy surgery from January 1998 to December 2015 were identified. Relevant clinical, neurophysiological, imaging, surgical and seizure outcome data we...

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Main Authors: Amy Ka, Amir Taher, Stephanie D'Souza, Elizabeth H. Barnes, Sachin Gupta, Christopher Troedson, Fiona Wade, Olga Teo, Russell C. Dale, Chong Wong, Andrew F. Bleasel, Mark Dexter, Kavitha Kothur, Deepak Gill
Format: Article
Language:English
Published: Elsevier 2022-01-01
Series:Epilepsy & Behavior Reports
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2589986422000387
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author Amy Ka
Amir Taher
Stephanie D'Souza
Elizabeth H. Barnes
Sachin Gupta
Christopher Troedson
Fiona Wade
Olga Teo
Russell C. Dale
Chong Wong
Andrew F. Bleasel
Mark Dexter
Kavitha Kothur
Deepak Gill
author_facet Amy Ka
Amir Taher
Stephanie D'Souza
Elizabeth H. Barnes
Sachin Gupta
Christopher Troedson
Fiona Wade
Olga Teo
Russell C. Dale
Chong Wong
Andrew F. Bleasel
Mark Dexter
Kavitha Kothur
Deepak Gill
author_sort Amy Ka
collection DOAJ
description There is a paucity of data on longitudinal seizure outcome of children undergoing epilepsy surgery. All children (n = 132) who underwent resective epilepsy surgery from January 1998 to December 2015 were identified. Relevant clinical, neurophysiological, imaging, surgical and seizure outcome data were extracted. Multivariable logistic regression analysis and Kaplan-Meier survival with Cox proportional hazard modelling were performed. The mean age at surgery was 7.8 years (range 0.2–17.9). 71% were seizure-free at a mean follow up of 5.3 ± 2.7 years. Of those who were seizure-free, 65 patients were able to completely wean off anti- seizure medications successfully. Using survival analysis, the probability of Engel Class I outcome at one year after surgery was 81% (95% confidence interval [CI] 87%–75%). This dropped to 73% at two years (95% CI 81%–65%), 58% at five years (95% CI 67.8%–48%), and 47% at ten years. Proportional hazard modelling showed that the presence of moderate to severe developmental disability (HR 6.5; p = 0.02) and lack of complete resection (HR 0.4; p = 0.02) maintain association as negative predictors of seizure-free outcome. Our study demonstrates favorable long-term seizure control following pediatric epilepsy surgery and highlights important predictors of seizure outcome guiding case selection and counseling of expectations prior to surgery.
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spelling doaj.art-0e9988dcc0864d5ebbe0f1ed57ad5f5a2022-12-22T00:54:25ZengElsevierEpilepsy & Behavior Reports2589-98642022-01-0119100561Predictors of longitudinal seizure outcomes after epilepsy surgery in childhoodAmy Ka0Amir Taher1Stephanie D'Souza2Elizabeth H. Barnes3Sachin Gupta4Christopher Troedson5Fiona Wade6Olga Teo7Russell C. Dale8Chong Wong9Andrew F. Bleasel10Mark Dexter11Kavitha Kothur12Deepak Gill13TY Nelson Department of Neurology and Neurosurgery, The Children's Hospital at Westmead, Sydney, NSW, AustraliaUniversity of Sydney, The Children's Hospital at Westmead, Westmead, Sydney, NSW, AustraliaUniversity of Sydney, The Children's Hospital at Westmead, Westmead, Sydney, NSW, AustraliaNHMRC Clinical Trials Centre, Faculty of Medicine and Health, University of SydneyTY Nelson Department of Neurology and Neurosurgery, The Children's Hospital at Westmead, Sydney, NSW, AustraliaTY Nelson Department of Neurology and Neurosurgery, The Children's Hospital at Westmead, Sydney, NSW, AustraliaTY Nelson Department of Neurology and Neurosurgery, The Children's Hospital at Westmead, Sydney, NSW, AustraliaTY Nelson Department of Neurology and Neurosurgery, The Children's Hospital at Westmead, Sydney, NSW, AustraliaTY Nelson Department of Neurology and Neurosurgery, The Children's Hospital at Westmead, Sydney, NSW, Australia; University of Sydney, The Children's Hospital at Westmead, Westmead, Sydney, NSW, Australia; Kids Neuroscience Centre, The Children's Hospital at Westmead, Sydney, NSW, AustraliaDepartment of Neurology, Westmead Hospital, Westmead, Sydney, AustraliaDepartment of Neurology, Westmead Hospital, Westmead, Sydney, AustraliaTY Nelson Department of Neurology and Neurosurgery, The Children's Hospital at Westmead, Sydney, NSW, Australia; Department of Neurology, Westmead Hospital, Westmead, Sydney, AustraliaTY Nelson Department of Neurology and Neurosurgery, The Children's Hospital at Westmead, Sydney, NSW, Australia; University of Sydney, The Children's Hospital at Westmead, Westmead, Sydney, NSW, Australia; Kids Neuroscience Centre, The Children's Hospital at Westmead, Sydney, NSW, AustraliaTY Nelson Department of Neurology and Neurosurgery, The Children's Hospital at Westmead, Sydney, NSW, Australia; University of Sydney, The Children's Hospital at Westmead, Westmead, Sydney, NSW, Australia; Kids Neuroscience Centre, The Children's Hospital at Westmead, Sydney, NSW, Australia; Corresponding author at: TY Nelson Department of Neurology, Children's Hospital at Westmead, Locked Bag 4001, Westmead, NSW 2145, Australia.There is a paucity of data on longitudinal seizure outcome of children undergoing epilepsy surgery. All children (n = 132) who underwent resective epilepsy surgery from January 1998 to December 2015 were identified. Relevant clinical, neurophysiological, imaging, surgical and seizure outcome data were extracted. Multivariable logistic regression analysis and Kaplan-Meier survival with Cox proportional hazard modelling were performed. The mean age at surgery was 7.8 years (range 0.2–17.9). 71% were seizure-free at a mean follow up of 5.3 ± 2.7 years. Of those who were seizure-free, 65 patients were able to completely wean off anti- seizure medications successfully. Using survival analysis, the probability of Engel Class I outcome at one year after surgery was 81% (95% confidence interval [CI] 87%–75%). This dropped to 73% at two years (95% CI 81%–65%), 58% at five years (95% CI 67.8%–48%), and 47% at ten years. Proportional hazard modelling showed that the presence of moderate to severe developmental disability (HR 6.5; p = 0.02) and lack of complete resection (HR 0.4; p = 0.02) maintain association as negative predictors of seizure-free outcome. Our study demonstrates favorable long-term seizure control following pediatric epilepsy surgery and highlights important predictors of seizure outcome guiding case selection and counseling of expectations prior to surgery.http://www.sciencedirect.com/science/article/pii/S2589986422000387Focal cortical dysplasiaEpilepsyEpilepsy surgeryTumours
spellingShingle Amy Ka
Amir Taher
Stephanie D'Souza
Elizabeth H. Barnes
Sachin Gupta
Christopher Troedson
Fiona Wade
Olga Teo
Russell C. Dale
Chong Wong
Andrew F. Bleasel
Mark Dexter
Kavitha Kothur
Deepak Gill
Predictors of longitudinal seizure outcomes after epilepsy surgery in childhood
Epilepsy & Behavior Reports
Focal cortical dysplasia
Epilepsy
Epilepsy surgery
Tumours
title Predictors of longitudinal seizure outcomes after epilepsy surgery in childhood
title_full Predictors of longitudinal seizure outcomes after epilepsy surgery in childhood
title_fullStr Predictors of longitudinal seizure outcomes after epilepsy surgery in childhood
title_full_unstemmed Predictors of longitudinal seizure outcomes after epilepsy surgery in childhood
title_short Predictors of longitudinal seizure outcomes after epilepsy surgery in childhood
title_sort predictors of longitudinal seizure outcomes after epilepsy surgery in childhood
topic Focal cortical dysplasia
Epilepsy
Epilepsy surgery
Tumours
url http://www.sciencedirect.com/science/article/pii/S2589986422000387
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