Ryoko Umaba

Osaka, Japan

Last Updated: 09/26/2026

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Found 28 publications

Prognosis of feeding and swallowing function in children and adolescents/young adults after corpus callosotomy.

Prognosis of feeding and swallowing function in children and adolescents/young adults after corpus callosotomy.

Journal: Epilepsy research

Published: February 08, 2026

Lower Interhemispheric Coherence in Adults with Surgically Treated Severe Generalized Epilepsy than in Patients Without Epilepsy: A Scalp EEG Study.

Lower Interhemispheric Coherence in Adults with Surgically Treated Severe Generalized Epilepsy than in Patients Without Epilepsy: A Scalp EEG Study.

Journal: Brain sciences

Published: December 22, 2025

Clinical characteristics and treatment outcomes of epileptic spasms: Comparative analysis of 277 patients by age at onset (<1 year, 1-2 years, >2 years).

Clinical characteristics and treatment outcomes of epileptic spasms: Comparative analysis of 277 patients by age at onset (<1 year, 1-2 years, >2 years).

Journal: Seizure

Published: December 17, 2025

Awake Craniotomy in Epilepsy Surgery: A Case Series and Proposal for Three Different Scenarios.

Awake Craniotomy in Epilepsy Surgery: A Case Series and Proposal for Three Different Scenarios.

Journal: Brain sciences

Published: September 06, 2024

Location-based selection of the surgical approach to preserve the hippocampus in lesion-associated temporal lobe epilepsy.

Location-based selection of the surgical approach to preserve the hippocampus in lesion-associated temporal lobe epilepsy.

Journal: Clinical neurology and neurosurgery

Published: July 29, 2024

Endoscopic Parasagittal Vertical Hemispherotomy: A 2-Dimensional Operative Video.

Endoscopic Parasagittal Vertical Hemispherotomy: A 2-Dimensional Operative Video.

Journal: Operative neurosurgery (Hagerstown, Md.)

Published: July 10, 2024

A study of the cerebral venous drainage patterns in craniosynostosis: nonsyndromic cases and the induction effect of Virchow's law on venous sinuses.

A study of the cerebral venous drainage patterns in craniosynostosis: nonsyndromic cases and the induction effect of Virchow's law on venous sinuses.

Journal: Journal of neurosurgery. Pediatrics

Published: June 06, 2024

Preoperative interhemispheric coherence as a potential predictive marker for seizure outcome after total corpus callosotomy in nonlesional generalized epilepsy: a scalp EEG study.

Preoperative interhemispheric coherence as a potential predictive marker for seizure outcome after total corpus callosotomy in nonlesional generalized epilepsy: a scalp EEG study.

Journal: Journal of neurosurgery. Pediatrics

Published: May 14, 2024

Vertical Parasagittal Hemispherotomy.

Vertical Parasagittal Hemispherotomy.

Journal: World neurosurgery

Published: May 08, 2024

Changes in interhemispheric coherence after total corpus callosotomy: a scalp EEG study in children with non-lesional generalized epilepsy.

Changes in interhemispheric coherence after total corpus callosotomy: a scalp EEG study in children with non-lesional generalized epilepsy.

Journal: Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery

Published: April 03, 2024

Characteristics of malignant brain tumor-associated epileptic spasms.

Characteristics of malignant brain tumor-associated epileptic spasms.

Journal: Epileptic disorders : international epilepsy journal with videotape

Published: January 27, 2024

Use of an Endoscope Reduces the Size of Craniotomy Without Increasing Operative Time Compared With Conventional Microscopic Corpus Callosotomy.

Use of an Endoscope Reduces the Size of Craniotomy Without Increasing Operative Time Compared With Conventional Microscopic Corpus Callosotomy.

Journal: Operative neurosurgery (Hagerstown, Md.)

Published: February 17, 2023

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Last Updated: 09/26/2026