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2005 Fiscal Year Final Research Report Summary

Investigation of swallowing dysfunction in tracheostomy patients

Research Project

Project/Area Number 16591716
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

SAMEJIMA Yasuhiro  Kumamoto University, University Hospital, Assistant Professor, 医学部附属病院, 講師 (50206009)

Co-Investigator(Kenkyū-buntansha) YUMOTO Eiji  Kumamoto University, Faculty of Medical and Pharmaceutical Sciences, Professor, 大学院・医学薬学研究部, 教授 (40116992)
Project Period (FY) 2004 – 2005
Keywordsdysphagia / tracheostomy / subglottic pressure / videofluoroscopy / aspiration
Research Abstract

Aspiration was often observed in the tracheostomy patients. The pathophysiology of this aspiration is not well understood, but it is attributed to multiple factors including reduced laryngeal elevation, reduced cough, and disuse atrophy of laryngeal musculature. Subglottic air pressure seem to be important for protecting aspiration because of its reduction when tracheostomy tube was plugged. But subglottic pressure was not measured directly in tracheostomy patients. The purpose of this study was to ensure positive subglottic pressure while swallowing and its protective effect for aspiration.
Nine patients with tracheostomy suffering from head and neck cancers (7 patients), a cerebrovascular accident and a subglottic laryngitis were chosen for this study. These patients were able to plug their tracheostomy tube and to swallow saliva at this study. Subglottic pressure was measured through the tracheostomy tube with or without the plug. Videofluoroscopy was used to observe the penetration and/or aspiration under the same condition of the plug.
Subglottic pressure during swallowing was significantly higher in the measurement with the plug than without plug. The phonation and cough generated the higher pressure than swallowing. Videofluoroscopy revealed that aspiration was reduced (or eliminated) during swallowing when they plug the tube, when compared to swallowing with an open (unplugged) tube.
This study demonstrates the positive subglottic pressure while swallowing and decreased aspiration by plugging the tracheostomy tube.

  • Research Products

    (9 results)

All 2006 2005

All Journal Article (9 results)

  • [Journal Article] 嚥下障害に対する喉頭挙上手術の適応とコツ.2006

    • Author(s)
      鮫島靖浩
    • Journal Title

      口咽科 18・2

      Pages: 325-330

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 気管切開患者における気管腕頭動脈交差部の狭窄に対する対応.2006

    • Author(s)
      鮫島靖浩, 熊井良彦, 後藤英功, 湯本英二
    • Journal Title

      日気食会報 57・2

      Pages: 155-156

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Indicaton and surgical technique of laryngeal suspension for dysphasia.2006

    • Author(s)
      Samejima Y
    • Journal Title

      Stomato-pharungol 18

      Pages: 325-330

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Management of tracheal stenosis caused by innominate artery compression.2006

    • Author(s)
      Samejima Y, Kumai Y, Gotoh H, Yumoto E
    • Journal Title

      J.Jpn.Bronchoesophagol.Soc. 57

      Pages: 155-156

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] 嚥下造影検査の実際とポイント2005

    • Author(s)
      鮫島靖浩
    • Journal Title

      JOHNS 21・12

      Pages: 1755-1760

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 誤嚥防止のための食道気管分離術と喉頭全摘術の違い2005

    • Author(s)
      鮫島靖浩
    • Journal Title

      日本医事新報 4257

      Pages: 108-110

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Asymmetry of the vocal folds in patients with vocal fold immobility.2005

    • Author(s)
      Yukio Oyamada, Eiji Yumoto, Koji Nakano, Hidenori Goto
    • Journal Title

      Arch Otolaryngology Head and Neck Surgery 131

      Pages: 399-406

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Practical points of videofluoroscopy2005

    • Author(s)
      Samejima Y
    • Journal Title

      JOHNS 21

      Pages: 1755-1760

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Differences between laryngotracheal separation and total laryngectomy for prevention of aspiration.2005

    • Author(s)
      Samejima Y
    • Journal Title

      Japan Medical Journal 4257

      Pages: 108-110

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

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Published: 2007-12-13  

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