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2004 Fiscal Year Final Research Report Summary

The New Accurate Diagnostic method and Treatment for the patulous Eustachian tube

Research Project

Project/Area Number 15390513
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Otorhinolaryngology
Research InstitutionTohoku University

Principal Investigator

KOBAYASHI Toshimitsu  Tohoku University, Graduate School of Medicine, Professor, 大学院・医学系研究科, 教授 (80133958)

Co-Investigator(Kenkyū-buntansha) KAWASE Tetsuaki  Tohoku University, Graduate School of Medicine, Associate Professor, 大学院・医学系研究科, 助教授 (50169728)
CHIBA Toshihiko  Tohoku University, Hospital, Research Associate, 病院・助手 (70280881)
SATO Toshinori  Tohoku University, Hospital, Research Associate, 病院・助手 (00336166)
YOSHIDA Naohiro  Tohoku University, Hospital, Research Associate, 病院・助手 (90291260)
WADA Hiroshi  Tohoku University, Graduate School of Engineering, Professor, 大学院・工学系研究科, 教授 (30111264)
Project Period (FY) 2003 – 2004
KeywordsPatulous Eustachian tube / audiometric diagnosis / sitting position-CT / Trans-tympanic Eustachian tube insertion
Research Abstract

1.The new accurate audiometric evaluation for the patulous Eustachian tube (PET) was developed and tested for the patients. The biggest problem of PET patients is their own loud voice though the Eustachian tube at speaking. The theory of the new method uses this phenomenon. Sounds via nose can work as masking noise at pure tone auchometry. These new unique audiometric method can be used for the diagnosis.
2.The new CT, MRI evaluation for PAT was established. The main problem for the MRI, CT diagnosis is that the Eustachian tube is collapsed when the patients lie down as taking usual CT, MRI. CT image taken at sitting position can evaluate the anatomical information and clinical level of the Eustachian tube. And also very thin slice MRI was established. This accurate MRI clarified the new etiology of the PET such as a decrease of muscle around the tube, venous volume change.
3.New Eustachian pin for obliteration of the tube via nasal cavity was developed. This pin still has some problem such as slipping down from the orifice of Eustachian tube. Further improvement is necessary for getting the final style.
4.Evaluation for the pin inserted through the tympanic orifice : 42 cases with tube inserted through tympanic orifice shows 75% effectiveness. Now, this pin therapy is the most effective way for the serious PET.

  • Research Products

    (14 results)

All 2005 2004 2003

All Journal Article (13 results) Book (1 results)

  • [Journal Article] 耳管開放症の診断と治療2005

    • Author(s)
      川瀬哲明, 小林俊光
    • Journal Title

      総合診療 54

      Pages: 193-194

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 耳管開放症2005

    • Author(s)
      大島猛史, 小林俊光
    • Journal Title

      JOHNS 21

      Pages: 317-323

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Diagnosis and treatment for patulous Eustachian tube2005

    • Author(s)
      Kawase T, Kobayashi T
    • Journal Title

      Sougourinsyo 54

      Pages: 193-194

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] patulous Eustachian tube2005

    • Author(s)
      Oshima T, Kobayashi T
    • Journal Title

      JOHNS 21

      Pages: 317-323

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Imaging of the patulous Eustachian tune : high-resolution CT evaluation with multiplanar reconstruction technique2004

    • Author(s)
      Yoshida H, Kobayashi T, Takasaki H, Takahashi H, Ishimaru H, Morikawa M
    • Journal Title

      Acta Otolaryngol. 124

      Pages: 918-923

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Possible New Assesment of Ptulous Eustachian Tube Function : Audiometry for Tones Presented in the Nasal Cavity.2004

    • Author(s)
      Kano S, Kawase T, Baba Y, Sato T, Kobayashi T.
    • Journal Title

      Acta Otolaryngol 124

      Pages: 431-435

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Imaging of the patulous Eustachian tube : high-resolution CT evaluation with multiplanar reconstruction technique.2004

    • Author(s)
      Yoshida H, Kobayashi T, Takasaki H, Takahashi H, Ishimaru H, Morikawa M, Hayashi K.
    • Journal Title

      Acta Otolaryngol 124

      Pages: 918-923

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Possible New Assesment of Ptulous Eustachian Tube Function : Audiometry for Tones Presented in the Nasal Cavity.2004

    • Author(s)
      Kano S, Kawase T, Baba Y, Sato T, Kobayashi T
    • Journal Title

      Acta Otolaryngol. 124

      Pages: 431-435

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Possible assessment of acoustic patency in patients with patulous Eustachian tube -preliminary report-.2004

    • Author(s)
      Kano S, Kawase T, Baba Y, Sato T, Kobayashi T.
    • Journal Title

      World Scientific, Singapore 2004.(eds.Gyo K.and Wada H.)(In Proceedings of 3^<rd> Symposium of Middle Ear Mechanics in Research and Otology)

      Pages: 351-353

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] 耳管開放症難治症例に対する経咽頭口的耳管ピン挿入術の1症例2003

    • Author(s)
      佐藤利徳, 川瀬哲明, 馬場保, 狩野茂之, 斎藤春夫, 小林俊光
    • Journal Title

      耳鼻咽喉科展望 46

      Pages: 216-220

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] CT imaging of the patulous eustachian tube-comparison between sitting and recumbent positions.2003

    • Author(s)
      Yoshida H, Kobayasi T, Morikawa M, Hayashi K, Tsuji H, Sasaki Y
    • Journal Title

      Auris Nasus Larynx 30

      Pages: 135-140

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] A case report of transtympanic Eustachian pin insertion for serious patulous Eustachian tube.2003

    • Author(s)
      Sato T, Kawase T, Baba Y, Kano S, Saito H, Kobayashi T
    • Journal Title

      Jibiinnkoukatenbo(Japanese) 46

      Pages: 216-220

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] CT imaging of the patulous eustachian tube-comparison between sitting and recumbent positions.2003

    • Author(s)
      Yoshida H, Kobayashi T, Morikawa M, Hayashi K, Tsuji H, Sasaki Y
    • Journal Title

      Auris Nasus Larynx 30

      Pages: 135-140

    • Description
      「研究成果報告書概要(欧文)」より
  • [Book] Proceedings of 3^<rd> Symposium of Middle Ear Mechanics in Research and Otology2004

    • Author(s)
      Gyo K, Wada H
    • Total Pages
      456
    • Publisher
      World Scientific Publishing
    • Description
      「研究成果報告書概要(和文)」より

URL: 

Published: 2006-07-11  

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