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1993 Fiscal Year Final Research Report Summary

The relation between the position of meddle ear cavity and surrounding cell walls in suppressed pneumatization

Research Project

Project/Area Number 03670821
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field Otorhinolaryngology
Research InstitutionThe Jikei University School fo Medicine

Principal Investigator

AOKI Kazuhiro  The Jikei University School of Medicine, Otolaryngology, Lecturer, 耳鼻咽喉科, 講師 (10130139)

Co-Investigator(Kenkyū-buntansha) EZAKI Shirou  The Jikei University School of Medicine, Otolaryngology, Lecturer, 耳鼻咽喉科, 講師 (40147286)
Project Period (FY) 1991 – 1993
KeywordsMiddle Ear Cavity / Mastoid Process / Epithelium / Bone Cortex / Subepithelial Bone Metabolic Layr / subperiosteal Bone Metabolic Layr
Research Abstract

The intention of this experiment was to investigate whether anatomical variation of the temporal bone such as low middle fossa dura, anterior position of the sigmoid sinus or small mastoid process, which are often seen at surgery in cholesteatoma patients, are caused by inflammation in early childhood. In 15 pigs, 1.5ml paraffine liquid were instilled into the left tympanic cavity within 7 days after birth in order to produce inflammation of the middle ear and tubal dysfunction. After six months, the length and area of the mastoid process were significantly smaller on the left instilled side than on the right normal side. In all cases there was remarkable hypocellularity and increased thickness of the cortical bone strongly supporting the environmental theory of the pneumatization that inflammation suppresses the pneumatization process and growth of the mastoid process.

  • Research Products

    (10 results)

All Other

All Publications (10 results)

  • [Publications] Kazuhiro Aoki et al: "Effect of middle ear infectionon Pneumatization and growth of the mastoid process." Cholesteatoma and Mastoid Surgery. 271-277 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yukie Kaneko et al: "Histopathological study of the middle ear mucosa in otitis media with effusion." Cholesteatoma and Mastoid Surgery. 301-304 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 青木和博,他: "人側頭骨の正常蜂巣発育と抑制部位." 耳鼻咽喉科展望. 36. 14-22 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 兼子幸恵,他: "小児滲出性中耳炎における中耳粘膜の病理組織学的検討." 耳鼻咽喉科展望. 36. 582-590 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 青木和博,他: "骨代謝様式より検討を加えた側頭骨含気腔の形成過程." 耳鼻咽喉科展望. 37(印刷中). (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Aoki, Kazuhiro et al: "Effect of middle ear infection on Pneumatization and growth of the mastoid process." Cholesteatoma and Mastoid Surgery. 271-277 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kaneko, Yukie et al: "Histological study of the middle ear mucosa in otitis media with effusion." Cholesteatoma and Mastoid Surgery. 301-304 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Aoki, Kazuhiro et al: "Normal process of pneumatization and the site of pneumatic suppression in human temporal bone." Otolaryngology Tokyo.36. 14-22 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kaneko, Yukie et al: "Histopathological study of the middle ear mucosa in otitis media with effusion in children." Otolaryngology Tokyo.36. 582-590 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Aoki, Kazuhiro et al: "Bone metabolism in the process of pneumatization of the temporal bone." Otolaryngology Tokyo.37(imprint). (1994)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1995-03-27  

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