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Impact of palatopharyngeal sizes changing on pharyngeal airflow fluctuation and airway vibration in a pediatric airway.
Chen, Yicheng; Cai, Weihua; Shi, Xie-Qi; Li, Biao; Feng, Xin.
Afiliación
  • Chen Y; School of Energy and Power Engineering, Northeast Electric Power University, Jilin, China; School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, China.
  • Cai W; School of Energy and Power Engineering, Northeast Electric Power University, Jilin, China; School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, China. Electronic address: caiwh@neepu.edu.cn.
  • Shi XQ; Department of Clinical Dentistry, Section for Oral and Maxillofacial Radiology, University of Bergen, Norway; Department of Oral Maxillofacial Radiology, Faculty of Odontology, Malmö University, Sweden.
  • Li B; School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, China.
  • Feng X; Division of Ear, Nose and Throat Surgery, Akerhus University Hospital, Lørenskog, Norway; Institute of Clinical Medicine, University of Oslo, Oslo, Norway. Electronic address: xin.feng@medisin.uio.no.
J Biomech ; 168: 112111, 2024 May.
Article en En | MEDLINE | ID: mdl-38657433
ABSTRACT
Snoring is common in children and is associated with many adverse consequences. One must study the relationships between pharyngeal morphology and snoring physics to understand snoring progression. Although some model studies have provided fluid-structure interaction dynamic descriptions for the correlation between airway size and snoring physics, the descriptions still need to be further investigated in patient-specific airway models. Fluid-structure interaction studies using patient-specific airway structures complement the above model studies. Based on reported cephalometric measurement methods, this study quantified and preset the size of the palatopharynx airway in a patient-specific airway and investigated how the palatopharynx size affects the pharyngeal airflow fluctuation, soft palate vibration, and glossopharynx vibration with the help of a verified FSI method. The results showed that the stenosis anterior airway of the soft palate increased airway resistance and airway resistance fluctuations, which can lead to increased sleep effort and frequent snoring. Widening of the anterior airway can reduce airflow resistance and avoid obstructing the anterior airway by the soft palate vibration. The pharyngeal airflow resistance, mouth inflow proportion, and soft palate apex displacement have components at the same frequencies in all airway models, and the glossopharynx vibration and instantaneous inflow rate have components at the same frequencies, too. The mechanism of this same frequency fluctuation phenomenon can be explained by the fluid-structure interaction dynamics of an ideal coupled model consisting of a flexible plate model and a collapsible tube model. The results of this study demonstrate the potential of FSI in studying snoring physics and clarify to some degree the mechanism of airway morphology affecting airway vibration physics.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Paladar Blando / Faringe / Ronquido / Vibración Límite: Child / Humans / Male Idioma: En Revista: J Biomech Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Paladar Blando / Faringe / Ronquido / Vibración Límite: Child / Humans / Male Idioma: En Revista: J Biomech Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos