Correlation Between the Degree of the Mastoid Pneumatization and the Angle and the Length of the Eustachian Tube

Yeğin, Yakup; Çelik, Mustafa; Şimşek, Baver Maşallah; Olgun, Burak; Karahasanoğlu, Aylin; Çolak, Ceylan; Kayhan, Fatma Tülin

doi:10.1097/scs.0000000000003071

Cited by 8 publications

(6 citation statements)

References 23 publications

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“…Given that our models do not fully explain ET length, there may be additional predictors such as race and genetic factors that could improve ET length prediction. Two studies have reported a correlation between mastoid pneumatization and ET length 21,22 . We did not include this factor in our models as pneumatization measurements would be more difficult to incorporate, and we were able to achieve high correlation without it.…”

Section: Discussionmentioning

confidence: 99%

“…Two studies have reported a correlation between mastoid pneumatization and ET length. 21,22 We did not include this factor in our models as pneumatization measurements would be more difficult to incorporate, and we were able to achieve high correlation without it. Additionally, the presence of large adenoids complicated the ET measures in a several subjects.…”

Section: Discussionmentioning

confidence: 99%

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Measurements of The Pediatric Cartilaginous Eustachian Tube: Implications for Balloon Dilation

Geffen

McCrary

et al. 2022

The Laryngoscope

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Objectives: (1) Measure the cartilaginous Eustachian tube (ET) length using a computed tomography (CT) scan and (2) develop a prediction model to measure this length without the need of a CT scan.Study Design: CT measurements in children.Setting: Children's Hospital. Methods: CT scans were reformatted to project the cranial and caudal limits of the cartilaginous ET. The length was measured in 193 children who underwent a neck CT scan for nonotologic indications. Five physicians independently reviewed all or some of these measures. Four different models based on age, age ranges, weight, and height were created and compared to predict ET length.Results: The cartilaginous ET length was 25.3 AE 3.1 mm for the right and for the left ear. The mean ET length for the females was statistically significantly less than the length in males. The lower ET lengths in children as old as 5 years of age were less than the 2 cm adult criteria used for catheter insertion. All 4 models performed equally well in predicting ET length. Model number 4, which is based on height, was the easiest to calculate ET length. Conclusion:The cartilaginous portion of the pediatric ET can be measured with good precision using reformatted CT images. We caution against using the "adult" criteria of 2 cm for catheter insertion in children, especially those younger than 5 years of age. We recommend using a model utilizing height measures to estimate ET length or direct measurements from a reformatted CT scan.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Measurements of The Pediatric Cartilaginous Eustachian Tube: Implications for Balloon Dilation

Geffen

McCrary

et al. 2022

The Laryngoscope

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“…[5,13] Mastoid kemik havalanmasının, östaki kanalı aracılığıyla nazofarenksteki pozitif basınçtan ve burun hava akımından etkilendiği öne sürülmektedir. [14,15] Östaki kanalı yoluyla havalanma, gazların difüzyonla dolaşımına geçmesi, orta kulak mukozasının kalınlığı, timpanik membranın esnekliği, burun ve nazofarenks arasındaki potansiyel etkileşimler ve mastoid kemiğinin boyutu orta kulak basıncını etkileyen faktörlerdir. [16] Mastoid hava hücre hacminin KOM süresine paralel olarak azaldığı gösterilmiştir.…”

Section: Discussionunclassified

Tek taraflı kronik otitis media ile nazal septum ve östaki tüpü açılarının ilişkisi

Kaya¹

2019

KBB Uygulamaları

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“…The orifices of the ET (tympanic and pharyngeal) were identified on the axial slices. Each ETA was defined as described in previous studies (4,10); the pharyngeal orifice of the ET lumen was the point nearest the pharynx where a loop-shaped lumen appeared, the tympanic orifice was the point on the ET closest to the appearance of the external auditory canal on a cross-sectional image. ETA was defined as the angle made by a straight line drawn through the ET lumen intersecting the Frankfort line.…”

Section: Measurementsmentioning

confidence: 99%

Does Sphenoid Pneumatization Affect the Angle of the Eustachian Tube?

Eravcı

Yildirim

Özcan

et al. 2021

Anadolu Kliniği Tıp Bilimleri Dergisi

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In this study, we aimed to investigate the relationship between sphenoid sinus pneumatization and the angle of the Eustachian tube. Methods: The study included a total of 158 patients. The Eustachian tube angle (ETA) was measured and sphenoid pneumatization was classified in the coronal plane. Results: According to the coronal classification of sphenoid pneumatization, 52 (16%) hemisphenoids were type 1, 177 (56%) hemi-sphenoids were type 2, and 87 (27.5%) hemi-sphenoids were type 3. According to the sagittal classification, 24 (7.6%) hemi-sphenoids were pre-sellar, 101 (32%) hemi-sphenoids were sellar, and 191 (60.4%) hemi-sphenoids were postsellar. The mean ETA in coronal classification was 24.71±3.35, 25.03±3.24, and 25.90±3.10 degrees for the type 1, type 2, and type 3 classes, respectively. The angle showed a gradual increase from type 1 to type 3, and it was found that ETA was statistically significantly wider in cases with lateral recess pneumatization (type 3, post-rotundum) than in type 2 and type 1 pneumatizations (p=0.039, p=0.035, respectively). Conclusion: ETA is increased in patients with lateral recess pneumatization.

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Correlation Between the Degree of the Mastoid Pneumatization and the Angle and the Length of the Eustachian Tube

Abstract: The present study is thus the first to analyze the relationship between the degree of the mastoid pneumatization and the ETa and the ETl. We found a positive correlation between the degree of the mastoid pneumatization and the ETl.

Cited by 8 publications

References 23 publications

Measurements of The Pediatric Cartilaginous Eustachian Tube: Implications for Balloon Dilation

Measurements of The Pediatric Cartilaginous Eustachian Tube: Implications for Balloon Dilation

Tek taraflı kronik otitis media ile nazal septum ve östaki tüpü açılarının ilişkisi

Does Sphenoid Pneumatization Affect the Angle of the Eustachian Tube?

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