Modified surgical procedure of corpus callosotomy: rostral corpus callosotomy via the transfrontal approach in dogs

Corpus callosotomy (CC) is a surgical procedure for palliative epilepsy surgery targeting generalized seizures. In humans, total CC (TCC) is primarily performed in pediatric patients, whereas anterior CC is typically performed in adult patients to avoid postoperative disconnection (split-brain) synd...

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Main Authors: Daisuke Hasegawa, Rikako Asada, Takayuki Miura
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-08-01
Series:Frontiers in Veterinary Science
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Online Access:https://www.frontiersin.org/articles/10.3389/fvets.2025.1649816/full
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author Daisuke Hasegawa
Rikako Asada
Rikako Asada
Takayuki Miura
author_facet Daisuke Hasegawa
Rikako Asada
Rikako Asada
Takayuki Miura
author_sort Daisuke Hasegawa
collection DOAJ
description Corpus callosotomy (CC) is a surgical procedure for palliative epilepsy surgery targeting generalized seizures. In humans, total CC (TCC) is primarily performed in pediatric patients, whereas anterior CC is typically performed in adult patients to avoid postoperative disconnection (split-brain) syndrome, even though the antiseizure effect is inferior to TCC. In dogs, TCC may be more favorable; however, approaching and dividing the rostral part of the corpus callosum (genu) through a previously described bilateral rostrotentorial (dorsal) approach is challenging, particularly in meso- and dolichocephalic and/or large-breed dogs. This approach also risks damaging the rostral cerebral arteries that run along the rostral edge of the genu. Based on our experience, approaching and dividing the genu is easier, safer, and more reliable using the transfrontal approach. This report introduces the rostral CC (RCC) procedure via the transfrontal approach and presents three cases that underwent either transfrontal RCC combined with the dorsal approach to complete TCC or standalone RCC. Although the antiseizure efficacy of RCC alone remains unclear in dogs, this procedure may be useful for completing TCC.
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spelling doaj-art-8a87301df77b44bf81f8b346044b082f2025-08-20T03:42:19ZengFrontiers Media S.A.Frontiers in Veterinary Science2297-17692025-08-011210.3389/fvets.2025.16498161649816Modified surgical procedure of corpus callosotomy: rostral corpus callosotomy via the transfrontal approach in dogsDaisuke Hasegawa0Rikako Asada1Rikako Asada2Takayuki Miura3Laboratory of Veterinary Clinical Neurology, Graduate School of Nippon Veterinary and Life Science University, Tokyo, JapanLaboratory of Veterinary Clinical Neurology, Graduate School of Nippon Veterinary and Life Science University, Tokyo, JapanVeterinary Medical Teaching Hospital, Nippon Veterinary and Life Science University, Tokyo, JapanLaboratory of Veterinary Clinical Neurology, Graduate School of Nippon Veterinary and Life Science University, Tokyo, JapanCorpus callosotomy (CC) is a surgical procedure for palliative epilepsy surgery targeting generalized seizures. In humans, total CC (TCC) is primarily performed in pediatric patients, whereas anterior CC is typically performed in adult patients to avoid postoperative disconnection (split-brain) syndrome, even though the antiseizure effect is inferior to TCC. In dogs, TCC may be more favorable; however, approaching and dividing the rostral part of the corpus callosum (genu) through a previously described bilateral rostrotentorial (dorsal) approach is challenging, particularly in meso- and dolichocephalic and/or large-breed dogs. This approach also risks damaging the rostral cerebral arteries that run along the rostral edge of the genu. Based on our experience, approaching and dividing the genu is easier, safer, and more reliable using the transfrontal approach. This report introduces the rostral CC (RCC) procedure via the transfrontal approach and presents three cases that underwent either transfrontal RCC combined with the dorsal approach to complete TCC or standalone RCC. Although the antiseizure efficacy of RCC alone remains unclear in dogs, this procedure may be useful for completing TCC.https://www.frontiersin.org/articles/10.3389/fvets.2025.1649816/fullcorpus callosotomydogdrug-resistant epilepsyepilepsyepilepsy surgerygeneralized seizures
spellingShingle Daisuke Hasegawa
Rikako Asada
Rikako Asada
Takayuki Miura
Modified surgical procedure of corpus callosotomy: rostral corpus callosotomy via the transfrontal approach in dogs
Frontiers in Veterinary Science
corpus callosotomy
dog
drug-resistant epilepsy
epilepsy
epilepsy surgery
generalized seizures
title Modified surgical procedure of corpus callosotomy: rostral corpus callosotomy via the transfrontal approach in dogs
title_full Modified surgical procedure of corpus callosotomy: rostral corpus callosotomy via the transfrontal approach in dogs
title_fullStr Modified surgical procedure of corpus callosotomy: rostral corpus callosotomy via the transfrontal approach in dogs
title_full_unstemmed Modified surgical procedure of corpus callosotomy: rostral corpus callosotomy via the transfrontal approach in dogs
title_short Modified surgical procedure of corpus callosotomy: rostral corpus callosotomy via the transfrontal approach in dogs
title_sort modified surgical procedure of corpus callosotomy rostral corpus callosotomy via the transfrontal approach in dogs
topic corpus callosotomy
dog
drug-resistant epilepsy
epilepsy
epilepsy surgery
generalized seizures
url https://www.frontiersin.org/articles/10.3389/fvets.2025.1649816/full
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