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Study of detection and clinical application of red spikes as biomarker for epileptogenic areas

Research Project

Project/Area Number 16K10782
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Neurosurgery
Research InstitutionTokyo Medical and Dental University

Principal Investigator

Maehara Taketoshi  東京医科歯科大学, 大学院医歯学総合研究科, 教授 (40211560)

Co-Investigator(Kenkyū-buntansha) 稲次 基希  東京医科歯科大学, 医学部附属病院, 講師 (00422486)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords高周波律動 / 間欠期スパイク / 海馬硬化 / てんかん原生 / セボフルラン / てんかん原性 / レッドスパイク / グリーンスパイク / HFO / 側頭葉てんかん / 麻酔薬 / てんかん / 形成異常 / 焦点 / 側頭葉外側皮質 / 脳・神経 / 脳神経疾患 / 神経科学 / 電気生理
Outline of Final Research Achievements

Spikes recorded in electroencephalograpy(EEG) or electrocorticography(ECoG) are considered as one of the important biomarkers to define epileptogenic areas, however, spike-recorded cortices are not always epileptogenic area. In this study, we tried to differentiate red spikes recorded on epileptogenic areas from green spikes recoded on non-epileptogenic areas. First, we defined that spikes recoded surgically resected areas of patients who obtained postoperative seizure-freedom are red spikes, and those recoded on non-resected areas are green spikes. Then, we analyzed high frequency oscillation overlapped on spikes in both areas. Our study suggested that both of ripple(80-200Hz) and fast ripple(250-500Hz) overlapped on spikes are useful to identify red spikes and green spikes.

Academic Significance and Societal Importance of the Research Achievements

難治てんかん患者に対する外科治療では、てんかん原生領域の同定が不可欠である。通常、てんかん原生領域の同定にはてんかん発作を記録し発作起始部位を検索することがgolden standardであるが、この方法は患者に頭蓋内電極を行うこと、また患者が起こす発作を記録するという点からは侵襲度が最も高い検査である。一方、術中皮質脳波は麻酔下に行うことが可能であり、その際記録されるスパイクをレッドスパイクとグリーンスパイクに判別しててんかん原生領域が決定できれば、患者の負担回避に加え、治療の正確性という面で非常に有用であり、本研究成果はこのことに貢献できたと考えられた。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (25 results)

All 2019 2018 2017 2016

All Journal Article (9 results) (of which Peer Reviewed: 9 results,  Open Access: 2 results) Presentation (16 results) (of which Int'l Joint Research: 9 results)

  • [Journal Article] 結節性硬化症患者の術中発作時脳波に対するwide-band analysis2019

    • Author(s)
      折原あすみ、稲次基希、橋本聡華、清水一秀、白井謙太郎、小山高明、山本信二、前原健寿
    • Journal Title

      てんかん研究

      Volume: 36 Pages: 650-656

    • NAID

      130007583613

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of antiepileptic monotherapy on hematological and biochemical parameters2019

    • Author(s)
      Yuri Yoshimura, Keiko Hara, Miho Akaza, Kaseya Ohta, Yuki Sumi, Motoki Inaji, Eriko Yanagisawa, Taketoshi Maehara
    • Journal Title

      Epilepsy & Seizure

      Volume: 11 Pages: 1-13

    • NAID

      130007631571

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 30歳代発症の欠神てんかんが疑われる一例2018

    • Author(s)
      永森千寿子、赤座実穂、前原健寿、稲次基希、原恵子
    • Journal Title

      てんかん研究

      Volume: 36 Pages: 52-58

    • NAID

      130007412889

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 2)難治性てんかんに対する発作感知型デバイスによる新たな治療選択肢-Aspire SR & RNS System2018

    • Author(s)
      山本貴道、稲次基希、前原健寿、川合謙介、 Werner K. Doyle
    • Journal Title

      脳神経外科

      Volume: 46 Pages: 247-262

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dysembryoplastic Neuroepithelial Tumor with Extension to the Basal Cistern: A Case Report.2018

    • Author(s)
      Keisuke Ohnaka, Kazuhide Shimizu, Daisuke Kobayashi, Motoki Inaji, Taketoshi Maehara
    • Journal Title

      Epilepsy & Seizure

      Volume: 10 Pages: 87-94

    • NAID

      130007510363

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 難治部分てんかん患者の焦点検索における、発作時DC電位・HFOの記録および解析の標準化案2017

    • Author(s)
      中谷 光良, 井内 盛遠, 大封 昌子, 十川 純平, 松井 智彦, 橋本 聡華, 稲次 基希, 白水 洋史, 金澤 恭子, 渡辺 裕貴, 臼井 直敬, 井上 有史, 前原 健寿, 池田 昭夫
    • Journal Title

      てんかん研究

      Volume: 35 Pages: 3-13

    • NAID

      130005701366

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Amelioration of intractable epilepsy by adjunct vagus nerve stimulation therapy in a girl with a CDKL5 mutation2017

    • Author(s)
      Baba Shimpei、Sugawara Yuji、Moriyama Kengo、Inaji Motoki、Maehara Taketoshi、Yamamoto Toshiyuki、Morio Tomohiro
    • Journal Title

      Brain and Development

      Volume: 39 Issue: 4 Pages: 341-344

    • DOI

      10.1016/j.braindev.2016.10.007

    • Related Report
      2017 Research-status Report 2016 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Focal cortical dysplasia type IIの律動的な棘波に関連する頭皮上high frequency oscillations2016

    • Author(s)
      2.田端 梓、原 恵子、稲次基希、玉田なつみ、川並麗奈、橋本聡華、藤間詩央里、笹野哲郎、松浦雅人、角 勇樹、前原健寿
    • Journal Title

      てんかん研究

      Volume: 33 Pages: 672-678

    • NAID

      130005126518

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] 医療系学生と一般健常者におけるてんかんに対する潜在的偏見2016

    • Author(s)
      3.藤間詩央里、原 恵子、田端 梓、笹野哲郎、稲次基希、赤座実穂、前原健寿、松浦雅人、角 勇樹
    • Journal Title

      てんかん研究

      Volume: 34 Pages: 10-22

    • NAID

      130005160643

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Presentation] Intracranial ictal DC shifts and ictal HFOs as surrogate markers in epileptic surgery: multi-institutional study in Japan.2018

    • Author(s)
      Morito Inouchi, Mitsuyoshi Nakatani, Jumpei Togawa, Tomohiko Murai, Masako Daifu, Katsuya Kobayashi, Takefumi Hitomi, Satoka Hashimoto, Motoki Inaji, Hiroshi Shirozu, Kyoko Kanazawa, Masaki Iwasaki, Naotaka Usui, Yushi Inoue, Taketoshi Maehara, Akio Ikeda
    • Organizer
      2th Asian-Oceanian Epilepsy Congress
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Multi-institutional study of epilepsy and glia in Japan.2018

    • Author(s)
      Taketoshi Maehara, Motoki Inaji, Satoka Hashimoto, Akiyoshi Kakita,Akio Ikeda
    • Organizer
      The 13th Asia epilepsy Surgery Congress.
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effects of Sevoflurane Anesthesia on Intraoperative High-Frequency Oscillation in Patients with Hippocampal Sclerosis.2018

    • Author(s)
      Asumi Orihara, Keiko Hara, Motoki Inaji, Kazuhide Shimizu, Satoka Hashimoto, Taketoshi Maehara
    • Organizer
      The American Epilepsy Society's Annual Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 高周波律動解析から見える新たな脳機能の小宇宙のベールをはぐ2017

    • Author(s)
      第76回日本脳神経外科学会総会
    • Organizer
      前原健寿、稲次基希、橋本聡華
    • Related Report
      2017 Research-status Report
  • [Presentation] Multi-institutional AMED study of epilepsy and glia in patients with intractable focal epilepsy. a case presentation2017

    • Author(s)
      Taketoshi Maehara, Motoki Inaji, Satoka Hashimoto, Akiyoshi Kakita, Akio Ikeda, AMED Study Group of epilepsy and glia
    • Organizer
      10th Epilepsy Colloquium
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] てんかんの診断と外科治療の適応と課題 指定発言2017

    • Author(s)
      前原健寿
    • Organizer
      第37回日本脳神経外科コングレス
    • Related Report
      2017 Research-status Report
  • [Presentation] RI negative epilepsyに対する外科治療の進歩2017

    • Author(s)
      前原健寿、稲次基希、大仲佳祐、橋本聡華
    • Organizer
      第40回日本てんかん外科学会
    • Related Report
      2017 Research-status Report
  • [Presentation] 内側側頭葉てんかんのセボフルラン麻酔下術中皮質脳波におけるred spikeの検討2017

    • Author(s)
      折原あすみ、稲次基希、橋本聡華、赤座実穂、原恵子、前原健寿
    • Organizer
      第51回日本てんかん学会
    • Related Report
      2017 Research-status Report
  • [Presentation] PET Imaging in Medial Temporal Lobe Epilepsy Patients with Hippocampal Sclerosis2016

    • Author(s)
      Inaji M, Hayashi S, Hashimoto S, Wagatsuma K, Toyohara J, Ishii K, Nariai T, Maehara T
    • Organizer
      American Epilepsy Society, 70th Annual Meeting
    • Place of Presentation
      Houston, USA
    • Year and Date
      2016-12-02
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Utility of a Novel PET Imaging Tracer of Tryptophan Metabolism, [11C] 1-Methyl-L-Triptophan, for Detection of Epileptic Changes in a Rodent Model2016

    • Author(s)
      Hashimoto S, Maeda J, Inaji M, Higuchi M, Kumata K, Zhang M, Suhara T, Maehara T,
    • Organizer
      American Epilepsy Society, 70th Annual Meeting
    • Place of Presentation
      Houston, USA
    • Year and Date
      2016-12-02
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Implicit Attitudes toward Epilepsy and the Need for Further Awareness in Japan2016

    • Author(s)
      Nagamiri , Hara K, Ohta K, Tohma S, Tabata, Akaza M, Maehara T, Inaji M, Sumi Y,
    • Organizer
      American Epilepsy Society, 70th Annual Meeting
    • Place of Presentation
      Houston, USA
    • Year and Date
      2016-12-02
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Cases of Probable Psychiatric Symptoms Associated with Levetiracetam2016

    • Author(s)
      Hara K, Maehara T, Inaji M, Nagamine C, Sumi Y, Hara M
    • Organizer
      American Epilepsy Society, 70th Annual Meeting
    • Place of Presentation
      Houston, USA
    • Year and Date
      2016-12-02
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] 焦点切除術術中に偶然記録された発作時皮質脳波の検討.2016

    • Author(s)
      稲次基希、橋本聡華、折原あすみ、黒羽真砂恵、赤座美穂、原 恵子、山本信二、前原健寿
    • Organizer
      第46回日本臨床神経生理学会
    • Place of Presentation
      ホテルハマツ(福島県郡山市)
    • Year and Date
      2016-10-27
    • Related Report
      2016 Research-status Report
  • [Presentation] 内側側頭葉てんかん術中皮質脳波におけるセボフルラン濃度のHFOへの影響.2016

    • Author(s)
      折原あすみ、稲次基希、橋本聡華、黒羽真砂恵、赤座美穂、原 恵子、前原健寿
    • Organizer
      第46回日本臨床神経生理学会
    • Place of Presentation
      ホテルハマツ(福島県郡山市)
    • Year and Date
      2016-10-27
    • Related Report
      2016 Research-status Report
  • [Presentation] 慢性頭蓋内脳波記録中に心因性発作を認めた内側側頭葉てんかんの1例2016

    • Author(s)
      黒羽真砂恵、稲次基希、田端 梓、原 恵子、赤座美穂、高木俊輔、前原健寿
    • Organizer
      第10回日本てんかん学会関東甲信越地方会
    • Place of Presentation
      東京医科歯科大学(東京都文京区)
    • Year and Date
      2016-07-09
    • Related Report
      2016 Research-status Report
  • [Presentation] Our surgical procedure for safe and accurate antero medial temporal lobectomy2016

    • Author(s)
      Taketoshi Maehara
    • Organizer
      7th Mt. Bandai & 8th PPNC meeting
    • Place of Presentation
      Phnom Penn, Cambodia
    • Year and Date
      2016-04-08
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2020-03-30  

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