Tubotympanic system functioning

Martin, C.; Karkas, Alexandre; Prades, J.‐M.

doi:10.1016/j.anorl.2017.03.010

Cited by 20 publications

(10 citation statements)

References 43 publications

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“…The ET lumen consists of two compartments: the Rüdinger safety canal and auxiliary gap 22 , 23 . Below the Rüdinger safety canal, there is a second area called the auxiliary gap.…”

Section: Discussionmentioning

confidence: 99%

Tapered self-expandable metallic stent optimized for Eustachian tube morphology in a porcine ET model

Kang

Kim

Ryu

et al. 2022

Sci Rep

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Several investigations on the feasibility of stent placement into the Eustachian tube (ET) are being conducted. However, stents optimized for the anatomical structure of the ET have not yet been developed. In this study, the efficacy and safety of a self-expandable metallic stent (SEMS) optimized for porcine ET morphology was investigated. Silicone was injected into a cadaveric porcine ET to analyze the ET morphology. The three-dimensional-reconstructed porcine ET phantom images obtained after a computed tomography scan were measured to determine the dimensions of the porcine ET. The SEMS was designed as a tapered structure on the basis of the morphological findings of the porcine ET. The tapered SEMS (T-SEMS) and conventional SEMS (C-SEMS) were placed into the porcine ET to compare the safety and efficacy of the two types of SEMSs. Stent-induced tissue hyperplasia in the T-SEMS group was significantly lower than that in the C-SEMS group (p < 0.001). The T-SEMS optimized for the porcine ET was effective in maintaining stent patency. T-SEMS seems to be better than C-SEMS in suppressing stent-induced tissue hyperplasia, owing to the reduced stent-mediated mechanical injuries and maintaining ET patency.

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“…The ET lumen consists of two compartments: the Rüdinger safety canal and auxiliary gap 22 , 23 . Below the Rüdinger safety canal, there is a second area called the auxiliary gap.…”

Section: Discussionmentioning

confidence: 99%

Tapered self-expandable metallic stent optimized for Eustachian tube morphology in a porcine ET model

Kang

Kim

Ryu

et al. 2022

Sci Rep

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“…stated that during the swallowing process, the tensor veli palatine muscle plays a role in opening the Eustachian tube ostium. 14 The mechanism of Eustachian tube dysfunction in the cleft palate is due to the abnormality of the cranium base and insertion of the tensor veli palatini muscles, which causes constriction of the Eustachian tube ostium.…”

Section: Discussionmentioning

confidence: 99%

Comparison of Eustachian tube ventilation function between cleft palate and normal patients using sonotubometry

et al. 2021

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Objective To compare Eustachian tube ventilation function between cleft palate subjects and normal subjects using sonotubometry. Method A comparative cross-sectional study was conducted at the Department Otolaryngology-Head and Neck Surgery of Ciptomangunkusumo National Hospital, Universitas Indonesia, Jakarta, from June 2013 to January 2014.There were 31 subjects with cleft palate and 62 healthy subjects aged ≤18 years, and both groups were matched according to age. Each subject underwent ear, nose, and throat examination with Veau classification and sonotubometry, a new assembly test in Indonesia. The results of the sonotubogram (the number of Eustachian tube openings, amplitude enhancement in dB, and the duration of Eustachian tube opening in ms) were then analyzed with SPSS using chi-square and Mann–Whitney tests. Results Subjects with cleft palate had lower Eustachian tube function than healthy subjects using three sonotubometry parameters ( p < 0.001). The proportion of Eustachian tube dysfunction based on the Veau classification was significant ( p < 0.001). In multivariate analysis, several determinant factors of Eustachian tube dysfunction were found, such as adenoid hypertrophy (risk factor6.46), the number of Eustachian tube openings (risk factor 36.21), and higher Veau classification (risk factor 10.41). Conclusion Sonotubometry could be used to assess parameters of Eustachian tube function. Subjects with cleft palate have a higher risk of having Eustachian tube dysfunction, as do subjects with adenoid hypertrophy.

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“…The new epithelium is considered to be healthier, coated with less pathogenic biofilm, and with sufficient amounts of surfactant. Finally, there is a theory based on the existence of mechanoreceptors on the tube whose stimulation by pressure may affect TVP muscle activity [ 31 ].…”

Section: Reviewmentioning

confidence: 99%

The Eustachian Tube Dysfunction in Children: Anatomical Considerations and Current Trends in Invasive Therapeutic Approaches

Goulioumis¹,

Gkorpa²,

Athanasopoulos³

et al. 2022

Cureus

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The eustachian tube (ET) has a crucial role in the physiology of the middle ear. Thus, any condition that renders the tube dysfunctional is directly implicated with middle ear pathophysiology, like in the case of acute otitis media and otitis media with effusion. Children are more vulnerable to pathologies of the middle ear, primarily due to the immature development of their eustachian tubes. Otitis media with effusion, apart from being a burden for hearing, with direct consequences for speech development, may also be implicated in cholesteatoma formation. Medical therapy is not practically effective for the treatment of effusion. Moreover, the established surgical approaches, like grommets and adenoidectomy, deal only indirectly with the problem since they are not addressing the dysfunctional ET itself. An emerging interventional approach that intends to restore the function of the tube is the transnasal balloon dilation of the cartilaginous part of the ET. Growing international experience indicates that this promising technique is safe and effective. In the current review, we aim to provide background information on the anatomy, physiology, and pathophysiology of the ET and to present the progress of the balloon dilation technique with emphasis on pediatric patients.

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Tubotympanic system functioning

Cited by 20 publications

References 43 publications

Tapered self-expandable metallic stent optimized for Eustachian tube morphology in a porcine ET model

Tapered self-expandable metallic stent optimized for Eustachian tube morphology in a porcine ET model

Comparison of Eustachian tube ventilation function between cleft palate and normal patients using sonotubometry

The Eustachian Tube Dysfunction in Children: Anatomical Considerations and Current Trends in Invasive Therapeutic Approaches

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