PMID- 33711709 OWN - NLM STAT- MEDLINE DCOM- 20220225 LR - 20220225 IS - 1872-6844 (Electronic) IS - 0920-1211 (Linking) VI - 172 DP - 2021 May TI - Spatiotemporal distribution and age of seizure onset in a pediatric epilepsy surgery cohort with cortical dysplasia. PG - 106598 LID - S0920-1211(21)00051-6 [pii] LID - 10.1016/j.eplepsyres.2021.106598 [doi] AB - OBJECTIVE: Focal Cortical Dysplasias (CD) are a common etiology of refractory pediatric epilepsy and are amenable to epilepsy surgery. We investigated the association of lesion volume and location to age of seizure onset among children with CD who underwent epilepsy surgery. METHODS: A retrospective study of epilepsy surgery patients with pathologically-confirmed CD. Regions of interest (ROI) determined preoperative lesion volumes on 1.5 T and 3 T T2 and SPGR MRIs, and location in 7 distributed neural networks. Descriptive and inferential statistics were used. RESULTS: Fifty-five patients were identified: 35 girls (56.5 %). Median age of seizure onset: 19.0 months (range 0.02 months - 16.0 years). Median age of surgery: 7.8 years (range 2.89 months - 24.45 years). CD were frontal (n = 21, 38 %); temporal (n = 15, 27 %); parietal (n = 10, 18 %); occipital (n = 3, 5%); multilobar (n = 6, 11 %). Frontal FCD had seizure onset < 1-year-old (P = 0.10); temporal lobe CD seizure onset was more likely > 5-years-old (P= 0.06). Median lesion volume for CD was 23.23 cm(3) (range: 1.87-591.73 cm(3)). Larger CD lesions were associated with earlier epilepsy (P = 0.01, r = -0.16). We did not find that lesions proximal to early maturing cortical regions were associated with earlier seizure onset. We found an association with CD location in the default mode network (DMN) and age onset < 5years old (P = 0.03). Age of seizure onset was negatively correlated with percent of CD overlapping motor cortex (P = 0.001, r =-0.794) but not with CD overlap of the visual cortex (P = 0.35). There was no effect of CD type on age of epilepsy onset. SIGNIFICANCE: Larger CD lesions are associated with earlier onset epilepsy. CD most commonly occurs within the DMN and Limbic network, and DMN is associated with seizure onset before 5-years-old. Percent of CD overlapping motor cortex correlates with earlier seizure onset. These observations may reflect patterns of brain maturation or regional differences in clinical expression of seizures. CI - Copyright (c) 2021 Elsevier B.V. All rights reserved. FAU - Wiwattanadittakul, Natrujee AU - Wiwattanadittakul N AD - Department of Pediatrics, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand; Center for Neuroscience, Children's National Hospital, George Washington University School of Medicine, Washington DC, USA. FAU - Suwannachote, Sirorat AU - Suwannachote S AD - Center for Neuroscience, Children's National Hospital, George Washington University School of Medicine, Washington DC, USA; Department of Pediatrics, Queen Sirikit National Institute of Child Health, Rungsit University, Bangkok, Thailand. FAU - You, Xiaozhen AU - You X AD - Center for Neuroscience, Children's National Hospital, George Washington University School of Medicine, Washington DC, USA. FAU - Cohen, Nathan T AU - Cohen NT AD - Center for Neuroscience, Children's National Hospital, George Washington University School of Medicine, Washington DC, USA. Electronic address: ncohen@childrensnational.org. FAU - Tran, Tan AU - Tran T AD - Center for Neuroscience, Children's National Hospital, George Washington University School of Medicine, Washington DC, USA. FAU - Phuackchantuck, Rochana AU - Phuackchantuck R AD - Research Administration Section, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand. FAU - Tsuchida, Tammy N AU - Tsuchida TN AD - Center for Neuroscience, Children's National Hospital, George Washington University School of Medicine, Washington DC, USA. FAU - Depositario-Cabacar, Dewi F AU - Depositario-Cabacar DF AD - Center for Neuroscience, Children's National Hospital, George Washington University School of Medicine, Washington DC, USA. FAU - Zelleke, Tesfaye AU - Zelleke T AD - Center for Neuroscience, Children's National Hospital, George Washington University School of Medicine, Washington DC, USA. FAU - Schreiber, John M AU - Schreiber JM AD - Center for Neuroscience, Children's National Hospital, George Washington University School of Medicine, Washington DC, USA. FAU - Conry, Joan A AU - Conry JA AD - Center for Neuroscience, Children's National Hospital, George Washington University School of Medicine, Washington DC, USA. FAU - Kao, Amy AU - Kao A AD - Center for Neuroscience, Children's National Hospital, George Washington University School of Medicine, Washington DC, USA. FAU - Bartolini, Luca AU - Bartolini L AD - Center for Neuroscience, Children's National Hospital, George Washington University School of Medicine, Washington DC, USA; Department of Pediatrics, Brown University, Rhode Island, USA. FAU - Oluigbo, Chima AU - Oluigbo C AD - Center for Neuroscience, Children's National Hospital, George Washington University School of Medicine, Washington DC, USA. FAU - Almira-Suarez, M Isabel AU - Almira-Suarez MI AD - Department of Pathology, Children's National Hospital & George Washington University School of Medicine, Washington DC, USA. FAU - Havens, Kathryn AU - Havens K AD - Center for Neuroscience, Children's National Hospital, George Washington University School of Medicine, Washington DC, USA. FAU - Whitehead, Matthew T AU - Whitehead MT AD - Center for Neuroscience, Children's National Hospital, George Washington University School of Medicine, Washington DC, USA. FAU - Gaillard, William Davis AU - Gaillard WD AD - Center for Neuroscience, Children's National Hospital, George Washington University School of Medicine, Washington DC, USA. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20210302 PL - Netherlands TA - Epilepsy Res JT - Epilepsy research JID - 8703089 SB - IM MH - Child MH - Child, Preschool MH - *Drug Resistant Epilepsy MH - Electroencephalography MH - *Epilepsy/diagnostic imaging/surgery MH - *Epilepsy, Temporal Lobe MH - Female MH - Humans MH - Infant MH - Infant, Newborn MH - Magnetic Resonance Imaging MH - *Malformations of Cortical Development/complications/diagnostic imaging/surgery MH - Retrospective Studies MH - Seizures/diagnostic imaging/etiology MH - Treatment Outcome OTO - NOTNLM OT - Default mode network OT - Focal cortical dysplasia OT - Malformations of cortical development OT - Network epilepsy EDAT- 2021/03/13 06:00 MHDA- 2022/02/26 06:00 CRDT- 2021/03/12 20:25 PHST- 2020/12/14 00:00 [received] PHST- 2021/02/04 00:00 [revised] PHST- 2021/02/28 00:00 [accepted] PHST- 2021/03/13 06:00 [pubmed] PHST- 2022/02/26 06:00 [medline] PHST- 2021/03/12 20:25 [entrez] AID - S0920-1211(21)00051-6 [pii] AID - 10.1016/j.eplepsyres.2021.106598 [doi] PST - ppublish SO - Epilepsy Res. 2021 May;172:106598. doi: 10.1016/j.eplepsyres.2021.106598. Epub 2021 Mar 2.