Stephanie DeGasperis, Rajesh RamachandranNair, Kevin C. Jones, Robyn Whitney
{"title":"SYNGAP-1发育性和癫痫性脑病:胼胝体切开术和神经调节的应用","authors":"Stephanie DeGasperis, Rajesh RamachandranNair, Kevin C. Jones, Robyn Whitney","doi":"10.1016/j.eplepsyres.2025.107641","DOIUrl":null,"url":null,"abstract":"<div><h3>Introduction</h3><div>Variants in <em>SYNGAP1</em> cause a rare childhood-onset developmental and epileptic encephalopathy (DEE). Limited reports describe palliative surgical procedures such as corpus callosotomy (CC) and vagus nerve stimulation (VNS) in <em>SYNGAP1</em>-related DEE.</div></div><div><h3>Methods</h3><div>A retrospective chart review of de-identified medical records from the SynGAP Research Fund Citizen Health Database (Citizen) who underwent CC and/or VNS was conducted. This was supplemented with one child from our centre. Details related to epilepsy, comorbidities, genetics, electroencephalogram/neuroimaging findings and treatment response are summarized.</div></div><div><h3>Results</h3><div>We identified 185 children with likely pathogenic/pathogenic variants in <em>SYNGAP1</em>; 156 had epilepsy (n = 156/185, 84.3 %). Fifteen children had palliative procedures (15/156, 9.6 %). Eleven children had VNS (n = 11/15, 73.3 %), and the median follow-up was 3.3 years (IQR 5.6, 3.3). Seven children had an initial > 50 % seizure reduction (n = 7/11, 63.6 %), 2 had worsening (n = 2/11, 18.2 %), 1 had no change (n = 1/11, 9.1 %), and 1 had an unknown response (n = 1/11, 9.1 %). VNS response was sustained in 3 children (3/11, 27.3 %). Two children (n = 2/15, 13.3 %) had CC only with a mean follow-up of 3.1 years; 1 became seizure-free, and the other had > 50 % seizure reduction. Two children (n = 2/15, 13.3 %) underwent VNS then CC, 1 had a > 50 % overall seizure reduction, and one had minimal change; mean follow up from CC was 3.1 years. One child from our centre had a sustained > 80 % seizure reduction (1.5 years) following CC at 7 years.</div></div><div><h3>Conclusion</h3><div>The effect of VNS was variable and sustained in less children over time. CC appeared to be more effective in the few treated. Larger cohorts are required to confirm these findings in <em>SYNGAP1</em>-related DEE.</div></div>","PeriodicalId":11914,"journal":{"name":"Epilepsy Research","volume":"218 ","pages":"Article 107641"},"PeriodicalIF":2.0000,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"SYNGAP-1 developmental and epileptic encephalopathy: Utility of corpus callosotomy and neuromodulation\",\"authors\":\"Stephanie DeGasperis, Rajesh RamachandranNair, Kevin C. Jones, Robyn Whitney\",\"doi\":\"10.1016/j.eplepsyres.2025.107641\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><h3>Introduction</h3><div>Variants in <em>SYNGAP1</em> cause a rare childhood-onset developmental and epileptic encephalopathy (DEE). Limited reports describe palliative surgical procedures such as corpus callosotomy (CC) and vagus nerve stimulation (VNS) in <em>SYNGAP1</em>-related DEE.</div></div><div><h3>Methods</h3><div>A retrospective chart review of de-identified medical records from the SynGAP Research Fund Citizen Health Database (Citizen) who underwent CC and/or VNS was conducted. This was supplemented with one child from our centre. Details related to epilepsy, comorbidities, genetics, electroencephalogram/neuroimaging findings and treatment response are summarized.</div></div><div><h3>Results</h3><div>We identified 185 children with likely pathogenic/pathogenic variants in <em>SYNGAP1</em>; 156 had epilepsy (n = 156/185, 84.3 %). Fifteen children had palliative procedures (15/156, 9.6 %). Eleven children had VNS (n = 11/15, 73.3 %), and the median follow-up was 3.3 years (IQR 5.6, 3.3). Seven children had an initial > 50 % seizure reduction (n = 7/11, 63.6 %), 2 had worsening (n = 2/11, 18.2 %), 1 had no change (n = 1/11, 9.1 %), and 1 had an unknown response (n = 1/11, 9.1 %). VNS response was sustained in 3 children (3/11, 27.3 %). Two children (n = 2/15, 13.3 %) had CC only with a mean follow-up of 3.1 years; 1 became seizure-free, and the other had > 50 % seizure reduction. Two children (n = 2/15, 13.3 %) underwent VNS then CC, 1 had a > 50 % overall seizure reduction, and one had minimal change; mean follow up from CC was 3.1 years. One child from our centre had a sustained > 80 % seizure reduction (1.5 years) following CC at 7 years.</div></div><div><h3>Conclusion</h3><div>The effect of VNS was variable and sustained in less children over time. CC appeared to be more effective in the few treated. Larger cohorts are required to confirm these findings in <em>SYNGAP1</em>-related DEE.</div></div>\",\"PeriodicalId\":11914,\"journal\":{\"name\":\"Epilepsy Research\",\"volume\":\"218 \",\"pages\":\"Article 107641\"},\"PeriodicalIF\":2.0000,\"publicationDate\":\"2025-08-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Epilepsy Research\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0920121125001421\",\"RegionNum\":4,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CLINICAL NEUROLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Epilepsy Research","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0920121125001421","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CLINICAL NEUROLOGY","Score":null,"Total":0}
SYNGAP-1 developmental and epileptic encephalopathy: Utility of corpus callosotomy and neuromodulation
Introduction
Variants in SYNGAP1 cause a rare childhood-onset developmental and epileptic encephalopathy (DEE). Limited reports describe palliative surgical procedures such as corpus callosotomy (CC) and vagus nerve stimulation (VNS) in SYNGAP1-related DEE.
Methods
A retrospective chart review of de-identified medical records from the SynGAP Research Fund Citizen Health Database (Citizen) who underwent CC and/or VNS was conducted. This was supplemented with one child from our centre. Details related to epilepsy, comorbidities, genetics, electroencephalogram/neuroimaging findings and treatment response are summarized.
Results
We identified 185 children with likely pathogenic/pathogenic variants in SYNGAP1; 156 had epilepsy (n = 156/185, 84.3 %). Fifteen children had palliative procedures (15/156, 9.6 %). Eleven children had VNS (n = 11/15, 73.3 %), and the median follow-up was 3.3 years (IQR 5.6, 3.3). Seven children had an initial > 50 % seizure reduction (n = 7/11, 63.6 %), 2 had worsening (n = 2/11, 18.2 %), 1 had no change (n = 1/11, 9.1 %), and 1 had an unknown response (n = 1/11, 9.1 %). VNS response was sustained in 3 children (3/11, 27.3 %). Two children (n = 2/15, 13.3 %) had CC only with a mean follow-up of 3.1 years; 1 became seizure-free, and the other had > 50 % seizure reduction. Two children (n = 2/15, 13.3 %) underwent VNS then CC, 1 had a > 50 % overall seizure reduction, and one had minimal change; mean follow up from CC was 3.1 years. One child from our centre had a sustained > 80 % seizure reduction (1.5 years) following CC at 7 years.
Conclusion
The effect of VNS was variable and sustained in less children over time. CC appeared to be more effective in the few treated. Larger cohorts are required to confirm these findings in SYNGAP1-related DEE.
期刊介绍:
Epilepsy Research provides for publication of high quality articles in both basic and clinical epilepsy research, with a special emphasis on translational research that ultimately relates to epilepsy as a human condition. The journal is intended to provide a forum for reporting the best and most rigorous epilepsy research from all disciplines ranging from biophysics and molecular biology to epidemiological and psychosocial research. As such the journal will publish original papers relevant to epilepsy from any scientific discipline and also studies of a multidisciplinary nature. Clinical and experimental research papers adopting fresh conceptual approaches to the study of epilepsy and its treatment are encouraged. The overriding criteria for publication are novelty, significant clinical or experimental relevance, and interest to a multidisciplinary audience in the broad arena of epilepsy. Review articles focused on any topic of epilepsy research will also be considered, but only if they present an exceptionally clear synthesis of current knowledge and future directions of a research area, based on a critical assessment of the available data or on hypotheses that are likely to stimulate more critical thinking and further advances in an area of epilepsy research.