Evidence map›Paper›PMID 39327292›Full record

ArticleEuropean archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery2025

The effect of torus tubarius size on upper airway aerodynamics in children: a computational fluid dynamics study.

Yiwei Feng, Qiang Xie, Xiuping Yang, Xiaoping Ming, Xiong Chen

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Article in European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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5 authors.

Yiwei FengDepartment of Otorhinolaryngology, Head and Neck Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China.
Qiang XieDepartment of Otorhinolaryngology, Head and Neck Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China.
Xiuping YangDepartment of Otorhinolaryngology, Head and Neck Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China.
Xiaoping MingDepartment of Otorhinolaryngology, Head and Neck Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China.
Xiong ChenDepartment of Otorhinolaryngology, Head and Neck Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China. zn_chenxiong@whu.edu.cn.ORCID http://orcid.org/0000-0002-0886-0190

Funding

Key Research and Development Project of Hubei Province 2022BCA040National Natural Science Foundation of China 82071033National Natural Science Foundation of China 82371135
6 · The paper itself

Abstract

purposeSome children with sleep-disordered breathing (SDB) continue to experience symptoms after adenotonsillectomy. One possible cause is the excessive size of the torus tubarius.

methodsIn this study, the relationship between torus tubarius size and surgical outcome in 24 children with SDB who underwent adenotonsillectomy was retrospectively analyzed based on cone beam computed tomography (CBCT) imaging measurements and medical records. A computational fluid dynamics (CFD) approach was used to quantitatively compare the effects of different torus tubarius sizes on upper airway (UA) aerodynamics in children.

resultsThe percentage of UA area occupied by the torus tubarius (TTA%) was significantly different between the excellent and poor groups (10.4 ± 3.58% vs. 17.71 ± 4.7%, p < 0.001). The results of CFD simulation showed that the mean airflow velocity, wall shear stress (WSS) and pressure drop (ΔP) in the nasopharynx significantly increased when the TTA% was > 15%.

conclusionOur study confirmed the effect of round pillow size on the aerodynamics of the UA in children. When the TTA% exceeds 15%, it causes change in aerodynamics, which may affect the outcome of children with SDB.

Indexed as

AdenoidectomyNasopharynxSleep Apnea SyndromesTonsillectomyChildChild, PreschoolComputer SimulationCone-Beam Computed TomographyFemaleHumansHydrodynamicsMaleRetrospective StudiesCBCTComputational fluid dynamicsSleep-disordered breathingTorus tubarius

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PMID39327292

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