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Development of the fluid sound analytical method that efficacy to pediatric obstructive sleep apnea of the oral myofunctional therapy is detectable

Research Project

Project/Area Number 18K09859
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 57070:Developmental dentistry-related
Research InstitutionKagoshima University

Principal Investigator

SUGA HOKUTO  鹿児島大学, 医歯学域歯学系, 客員研究員 (40610621)

Co-Investigator(Kenkyū-buntansha) 岩崎 智憲  鹿児島大学, 医歯学域歯学系, 准教授 (10264433)
山崎 要一  鹿児島大学, 医歯学域歯学系, 教授 (30200645)
三島 克章  山口大学, 大学院医学系研究科, 教授 (60304317)
中野 旬之  大阪医科大学, 医学部, 講師 (60511730)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords口腔内装置 / 閉塞性睡眠時無呼吸 / 流体力学解析 / OSA / 呼吸 / 睡眠 / 睡眠時無呼吸症候群 / 流体解析 / 音響解析 / 口腔筋機能療法
Outline of Final Research Achievements

To evaluate the effect of oral appliance (OA) treatment on upper-airway ventilation conditions in patients with obstructive sleep apnea (OSA) using computational fluid dynamics (CFD). The apnea-hypopnea index (AHI) improved from 23.1 to 10.1 events/h after OA treatment. On CFD analysis, airway velocity decreased at the retropalatal and epiglottis-tip levels, while airway pressure decreased at the retropalatal, uvular-tip, and epiglottis-tip levels. The AHI of patients with OSA before OA treatment was correlated with airway pressure at the epiglottis-tip level. Treatment with OA improved the ventilation conditions of the pharyngeal airway and AHI. Results of CFD analysis of airway pressure and airflow velocity helped determine the severity and ventilatory impairment site of OSA, respectively.

Academic Significance and Societal Importance of the Research Achievements

本研究では機能的要因によって変動する睡眠中の気道狭窄部位を、いびき音から継時的に特定できるようにする点が学術的独自性である。また、アデノイド・口蓋扁桃摘出術、MMAなどにより、形態的に改善させる事を中心に行われてきたOSA治療に、これまで用いられる事がなかった機能的な治療方法が小児OSAに対して有効である事を客観的に示すところである。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (8 results)

All 2020 2019 2018

All Journal Article (7 results) (of which Peer Reviewed: 7 results,  Open Access: 4 results) Presentation (1 results)

  • [Journal Article] Relationship between pharyngeal airway depth and ventilation condition in mandibular setback surgery: A computational fluid dynamics study2020

    • Author(s)
      Shirazawa Yoshito、Iwasaki Tomonori、Ooi Kazuhiro、Kobayashi Yutaka、Yanagisawa‐Minami Ayaka、Oku Yoichiro、Yokura Anna、Ban Yuusuke、Suga Hokuto、Kawashiri Shuichi、Yamasaki Youichi
    • Journal Title

      Orthodontics & Craniofacial Research

      Volume: 1 Issue: 3 Pages: 1-9

    • DOI

      10.1111/ocr.12371

    • Related Report
      2020 Annual Research Report 2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Upper airway in children with unilateral cleft lip and palate evaluated with computational fluid dynamics2019

    • Author(s)
      Iwasaki Tomonori、Suga Hokuto、Minami-Yanagisawa Ayaka、Hashiguchi-Sato Makiko、Sato Hideo、Yamamoto Yuushi、Shirazawa Yoshito、Tsujii Toshiya、Kanomi Ryuzo、Yamasaki Youichi
    • Journal Title

      American Journal of Orthodontics and Dentofacial Orthopedics

      Volume: 156 Issue: 2 Pages: 257-265

    • DOI

      10.1016/j.ajodo.2018.09.013

    • NAID

      120006979185

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Evaluation of the effect of oral-appliance treatment on upper-airway ventilation conditions in obstructive sleep apnea using computational fluid dynamics2019

    • Author(s)
      Suga H, Iwasaki T, Mishima K, Nakano H, Ueyama Y, Yamasaki Y.
    • Journal Title

      Cranio

      Volume: 印刷中 Issue: 3 Pages: 1-9

    • DOI

      10.1080/08869634.2019.1596554

    • NAID

      120006980535

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Rapid maxillary expansion effects of nasal airway in children with cleft lip and palate using computational fluid dynamics2019

    • Author(s)
      Iwasaki Tomonori、Yanagisawa‐Minami Ayaka、Suga Hokuto、Shirazawa Yoshito、Tsujii Toshiya、Yamamoto Yuushi、Ban Yuusuke、Sato‐Hashiguchi Makiko、Sato Hideo、Kanomi Ryuzo、Yamasaki Youichi
    • Journal Title

      Orthodontics & Craniofacial Research

      Volume: - Issue: 3 Pages: 201-207

    • DOI

      10.1111/ocr.12311

    • Related Report
      2019 Research-status Report 2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evaluation of the effect of oral appliance treatment on upper-airway ventilation conditions in obstructive sleep apnea using computational fluid dynamics.2019

    • Author(s)
      Suga H, Iwasaki T, Mishima K, Nakano H, Ueyama Y, Yamasaki Y.
    • Journal Title

      Cranio.

      Volume: -

    • NAID

      120006980535

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Relationships among tongue volume, hyoid position, airway volume and maxillofacial form in paediatric patients with Class-I, Class-II and Class-III malocclusions2018

    • Author(s)
      Iwasaki Tomonori、Suga Hokuto、Yanagisawa-Minami Ayaka、Sato Hideo、Sato-Hashiguchi Makiko、Shirazawa Yoshito、Tsujii Toshiya、Yamamoto Yuushi、Kanomi Ryuzo、Yamasaki Youichi
    • Journal Title

      Orthodontics & Craniofacial Research

      Volume: 22 Issue: 1 Pages: 9-15

    • DOI

      10.1111/ocr.12251

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] 小児の口呼吸が睡眠ならびに日中の行動におよぼす影響のアンケート調査.2018

    • Author(s)
      宮川 尚之, 岩崎 智憲, 菅 北斗, 伴 祐輔, 山崎 要一.
    • Journal Title

      小児歯科学雑誌.

      Volume: 56巻1号 Pages: 19-25

    • NAID

      130007603735

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] 当大学病院小児歯科における全身管理下歯科治療の継時的臨床統計2018

    • Author(s)
      菅 北斗、稲田絵美、窪田直子、橋口真紀子、村上大輔、伴 裕輔、合田義仁、白澤良執、柳沢彩佳、山本祐士、辻井利弥、金田尚子、佐藤秀夫、岩崎智憲、山﨑要一
    • Organizer
      第32回鹿児島県小児保健学会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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