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  1. No Access

    Article

    Eagle jugular syndrome accompanied by de novo brainstem cavernous malformation: a case-based systematic review

    Eagle jugular syndrome (EJS), recently identified as a cause of cerebrovascular disease (CVD) due to venous obstruction by an elongated styloid process (SP), is reported here alongside a case of concurrent de ...

    Yasushi Motoyama, Hiromitsu Sasaki, Tsukasa Nakajima in Acta Neurochirurgica (2024)

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    Article

    Motor evoked potential monitoring can evaluate ischemic tolerance to carotid artery occlusion during surgery

    Balloon test occlusion (BTO) is a useful examination for evaluating ischemic tolerance to internal carotid artery (ICA) occlusion. The aim of this study was to investigate the relationships between intraoperat...

    Yoshiaki Takamura, Yasushi Motoyama in Journal of Clinical Monitoring and Computi… (2021)

  3. No Access

    Article

    Diagnostic impact of monitoring transcranial motor-evoked potentials to prevent ischemic complications during endovascular treatment for intracranial aneurysms

    The present study aimed to determine the incidence of intraprocedural motor-evoked potential (MEP) changes and to correlate them with intraprocedural ischemic complications and postprocedural neurological defi...

    Ichiro Nakagawa, HunSoo Park, Masashi Kotsugi, Yasushi Motoyama in Neurosurgical Review (2021)

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    Article

    Ocular blood flow by laser speckle flowgraphy to detect cerebral ischemia during carotid endarterectomy

    Laser speckle flowgraphy (LSFG) is a noninvasive technique that can measure relative blood flow velocity in the optic fundus contributed by the ophthalmic artery, the main first branch originating from the int...

    Yasushi Motoyama, Hironobu Hayashi in Journal of Clinical Monitoring and Computi… (2021)

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    Article

    Hinge and floating decompressive craniotomy for infantile acute subdural hematoma: technical note

    Cranioplasty complications after decompressive craniectomy (DC) in infants are not fully recognized. We aimed to devise and assess the efficacy of a hinge and floating DC (HFDC) technique for treating infantil...

    Young-Soo Park, Yohei Kogeichi, Takahide Haku, Tae Kyun Kim in Child's Nervous System (2021)

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    Article

    Efficacy and safety of intraventricular fibrinolytic therapy for post-intraventricular hemorrhagic hydrocephalus in extreme low birth weight infants: a preliminary clinical study

    To evaluate the efficacy and safety of our unique therapy for treating post-intraventricular hemorrhagic hydrocephalus (PIVHH) in low birth weight infants (LBWls) through an early stage fibrinolytic therapeuti...

    Young-Soo Park, Yukiko Kotani, Tae Kyun Kim, Hiroshi Yokota in Child's Nervous System (2021)

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    Article

    Investigation of poststroke epilepsy (INPOSE) study: a multicenter prospective study for prediction of poststroke epilepsy

    Poststroke epilepsy is a common problem in clinical practice. This study aimed to determine the predictors of poststroke epilepsy and to identify the risk factors.

    Shuichi Yamada, Ichiro Nakagawa, Kentaro Tamura, Fumihiko Nishimura in Journal of Neurology (2020)

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    Article

    C2 extradural schwannoma compressing the dominant internal jugular vein: a case report

    We describe a rare case of extradural schwannoma in the upper cervical spine compressing the dominant internal jugular vein (IJV) presenting with atypical headaches. A 50-year-old woman complained of a subcuta...

    Tsukasa Nakajima, Yasuhiro Takeshima, Tae-Kyun Kim, Ichiro Nakagawa in Acta Neurochirurgica (2020)

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    Article

    Bite injuries caused by transcranial electrical stimulation motor-evoked potentials’ monitoring: incidence, associated factors, and clinical course

    The incidence of bite injuries associated with transcranial electrical stimulation motor-evoked potentials monitoring reportedly ranges from 0.13 to 0.19%. However, in clinical practice, bite injuries appear t...

    Sachiko Yata, Mitsuru Ida, Hiroko Shimotsuji, Yosuke Nakagawa in Journal of Anesthesia (2018)

  10. No Access

    Article

    Reply to “Surgical treatment of posterior inferior cerebellar artery aneurysms”

    Yasushi Motoyama, Ichiro Nakagawa, Yoshiaki Takamura in Acta Neurochirurgica (2017)

  11. Article

    Open Access

    Partial wrap-clip** of the entrance of the pseudolumen of a fusiform aneurysm in the posterior inferior cerebellar artery: a technical note

    Fusiform aneurysms in the posterior inferior cerebellar artery (PICA) are rare and challenging to treat. Surgical treatment options for a fusiform aneurysm in the PICA include trap** with/without bypass and ...

    Yasushi Motoyama, Yoshiaki Takamura, Shuichi Yamada, Young-Su Park in Acta Neurochirurgica (2017)

  12. Article

    Open Access

    Quantitative analysis of the trajectory of simulated basilar apex aneurysms through the internal carotid artery to assess the need for an orbitozygomatic approach

    The aim of this study was to identify the correlation between the location of the internal carotid artery (ICA) and the need for an orbitozygomatic approach (OZA) when approaching a basilar apex (BX) aneurysm.

    Yasushi Motoyama, Yasuo Hironaka, Fumihiko Nishimura, Pritam Gurung in Acta Neurochirurgica (2017)

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    Article

    Antitumor effects of minodronate, a third-generation nitrogen-containing bisphosphonate, in synergy with γδT cells in human glioblastoma in vitro and in vivo

    Nitrogen-containing bisphosphonates (N-BPs), which prevent bone resorption, exert direct and γδT cell (GDT)-mediated antitumor effects against several tumor cell types, including glioblastoma (GBM). However, l...

    Tsutomu Nakazawa, Mitsutoshi Nakamura, Ryosuke Matsuda in Journal of Neuro-Oncology (2016)

  14. No Access

    Article

    Metastasizing pleomorphic adenoma in cavernous sinus: letter to the editor

    Yukiko Kotani, Yasushi Motoyama, Tokiko Nakai, Hiroyuki Nakase in Acta Neurochirurgica (2016)

  15. No Access

    Article

    Cytotoxic human peripheral blood-derived γδT cells kill glioblastoma cell lines: implications for cell-based immunotherapy for patients with glioblastoma

    Glioblastoma (GBM) is a highly aggressive brain tumor for which novel therapeutic approaches, such as immunotherapy, are urgently needed. Zoledronate (ZOL), an inhibitor of osteoclastic activity, is known to s...

    Tsutomu Nakazawa, Mitsutoshi Nakamura, Young Soo Park in Journal of Neuro-Oncology (2014)

  16. No Access

    Article

    An unusual case of primary central nervous system germinoma with meningeal dissemination

    Central nervous system germinomas often extend or disseminate into the ventricular and subarachnoid space. We present a case of primary central nervous system germinoma consisting mainly of meningeal dissemina...

    Yasuhiro Takeshima, Shuichi Yamada, Yasushi Motoyama in Child's Nervous System (2012)

  17. No Access

    Article

    Retrospective analysis of predictors of cerebral vasospasm after ruptured cerebral aneurysm surgery: influence of the location of subarachnoid blood

    The amount of blood on computed tomography (CT) has been shown to be a predictor of cerebral vasospasm after subarachnoid hemorrhage (SAH). However, the influence of the location of the blood on the incidence ...

    Yasumitsu Nomura, Masahiko Kawaguchi, Kenji Yoshitani in Journal of Anesthesia (2010)