TY - JOUR
T1 - Added value of corpus callosotomy following vagus nerve stimulation in children with Lennox–Gastaut syndrome
T2 - A multicenter, multinational study
AU - Roth, Jonathan
AU - Bergman, Lottem
AU - Weil, Alexander G.
AU - Brunette-Clement, Tristan
AU - Weiner, Howard L.
AU - Treiber, Jeffrey M.
AU - Shofty, Ben
AU - Cukiert, Arthur
AU - Cukiert, Cristine Mella
AU - Tripathi, Manjari
AU - Sarat Chandra, Poodipedi
AU - Bollo, Robert J.
AU - Machado, Hélio Rubens
AU - Santos, Marcelo Volpon
AU - Gaillard, William D.
AU - Oluigbo, Chima O.
AU - Ibrahim, George M.
AU - Jallo, George I.
AU - Shimony, Nir
AU - O'Neill, Brent R.
AU - Budke, Marcelo
AU - Pérez-Jiménez, María Ángeles
AU - Mangano, Francesco T.
AU - Iwasaki, Masaki
AU - Iijima, Keiya
AU - Gonzalez-Martinez, Jorge
AU - Kawai, Kensuke
AU - Ishishita, Yohei
AU - Elbabaa, Samer K.
AU - Bello-Espinosa, Luis
AU - Fallah, Aria
AU - Maniquis, Cassia A.B.
AU - Ben-Zvi, Ido
AU - Tisdall, Martin
AU - Panigrahi, Manas
AU - Jayalakshmi, Sita
AU - Blount, Jeffrey P.
AU - Dorfmüller, Georg
AU - Bulteau, Christine
AU - Stone, Scellig S.
AU - Bolton, Jeffrey
AU - Singhal, Ashutosh
AU - Connolly, Mary
AU - Alsowat, Daad
AU - Alotaibi, Faisal
AU - Ragheb, John
AU - Uliel-Sibony, Shimrit
N1 - Publisher Copyright:
© 2023 The Authors. Epilepsia published by Wiley Periodicals LLC on behalf of International League Against Epilepsy.
PY - 2023/12
Y1 - 2023/12
N2 - Objective: Lennox–Gastaut syndrome (LGS) is a severe form of epileptic encephalopathy, presenting during the first years of life, and is very resistant to treatment. Once medical therapy has failed, palliative surgeries such as vagus nerve stimulation (VNS) or corpus callosotomy (CC) are considered. Although CC is more effective than VNS as the primary neurosurgical treatment for LGS-associated drop attacks, there are limited data regarding the added value of CC following VNS. This study aimed to assess the effectiveness of CC preceded by VNS. Methods: This multinational, multicenter retrospective study focuses on LGS children who underwent CC before the age of 18 years, following prior VNS, which failed to achieve satisfactory seizure control. Collected data included epilepsy characteristics, surgical details, epilepsy outcomes, and complications. The primary outcome of this study was a 50% reduction in drop attacks. Results: A total of 127 cases were reviewed (80 males). The median age at epilepsy onset was 6 months (interquartile range [IQR] = 3.12–22.75). The median age at VNS surgery was 7 years (IQR = 4–10), and CC was performed at a median age of 11 years (IQR = 8.76–15). The dominant seizure type was drop attacks (tonic or atonic) in 102 patients. Eighty-six patients underwent a single-stage complete CC, and 41 an anterior callosotomy. Ten patients who did not initially have a complete CC underwent a second surgery for completion of CC due to seizure persistence. Overall, there was at least a 50% reduction in drop attacks and other seizures in 83% and 60%, respectively. Permanent morbidity occurred in 1.5%, with no mortality. Significance: CC is vital in seizure control in children with LGS in whom VNS has failed. Surgical risks are low. A complete CC has a tendency toward better effectiveness than anterior CC for some seizure types.
AB - Objective: Lennox–Gastaut syndrome (LGS) is a severe form of epileptic encephalopathy, presenting during the first years of life, and is very resistant to treatment. Once medical therapy has failed, palliative surgeries such as vagus nerve stimulation (VNS) or corpus callosotomy (CC) are considered. Although CC is more effective than VNS as the primary neurosurgical treatment for LGS-associated drop attacks, there are limited data regarding the added value of CC following VNS. This study aimed to assess the effectiveness of CC preceded by VNS. Methods: This multinational, multicenter retrospective study focuses on LGS children who underwent CC before the age of 18 years, following prior VNS, which failed to achieve satisfactory seizure control. Collected data included epilepsy characteristics, surgical details, epilepsy outcomes, and complications. The primary outcome of this study was a 50% reduction in drop attacks. Results: A total of 127 cases were reviewed (80 males). The median age at epilepsy onset was 6 months (interquartile range [IQR] = 3.12–22.75). The median age at VNS surgery was 7 years (IQR = 4–10), and CC was performed at a median age of 11 years (IQR = 8.76–15). The dominant seizure type was drop attacks (tonic or atonic) in 102 patients. Eighty-six patients underwent a single-stage complete CC, and 41 an anterior callosotomy. Ten patients who did not initially have a complete CC underwent a second surgery for completion of CC due to seizure persistence. Overall, there was at least a 50% reduction in drop attacks and other seizures in 83% and 60%, respectively. Permanent morbidity occurred in 1.5%, with no mortality. Significance: CC is vital in seizure control in children with LGS in whom VNS has failed. Surgical risks are low. A complete CC has a tendency toward better effectiveness than anterior CC for some seizure types.
KW - Lennox–Gastaut syndrome
KW - corpus callosotomy
KW - refractory epilepsy
KW - vagus nerve stimulation
UR - http://www.scopus.com/inward/record.url?scp=85174529679&partnerID=8YFLogxK
U2 - 10.1111/epi.17796
DO - 10.1111/epi.17796
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
C2 - 37823366
AN - SCOPUS:85174529679
SN - 0013-9580
VL - 64
SP - 3205
EP - 3212
JO - Epilepsia
JF - Epilepsia
IS - 12
ER -