Dimensions and position of the Eustachian tube in Humans.


Journal

PloS one
ISSN: 1932-6203
Titre abrégé: PLoS One
Pays: United States
ID NLM: 101285081

Informations de publication

Date de publication:
2020
Historique:
received: 21 08 2019
accepted: 20 04 2020
entrez: 5 5 2020
pubmed: 5 5 2020
medline: 8 8 2020
Statut: epublish

Résumé

Eustachian tube (ET) dysfunction is one of the causes for chronic otitis media. To develop new therapies such as stents to facilitate middle ear ventilation, a better knowledge on dimensions and positions of the ET in individual patients is necessary. Cone beam CT scans of 143 patients were retrospectively investigated. Parameters such as lengths of the ET and its cartilaginous and bony parts, diameters, angles as well as distance of the ostium from the nasal conchae were determined and evaluated for side, gender and age specific differences. The average length of the cartilaginous and bony tubes was smaller in women than men. The average deviation from the horizontal plane was 1.7° larger on the left side (35.4°) compared to the right side (33.7°). Tools to manipulate the ET or to insert stents into the ET should cover angles from at least 42° to 64°. The distance of the pharyngeal orifices from the conchae nasalis inferior increased with age, becoming most prominent above 70 years of age. This investigation provides necessary information to develop stents for human application and tools for safe positioning of the stents.

Identifiants

pubmed: 32365086
doi: 10.1371/journal.pone.0232655
pii: PONE-D-19-23539
pmc: PMC7197768
doi:

Types de publication

Journal Article Research Support, Non-U.S. Gov't

Langues

eng

Sous-ensembles de citation

IM

Pagination

e0232655

Déclaration de conflit d'intérêts

The authors have declared that no competing interests exist.

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Auteurs

Ida Janzen-Senn (I)

Department of Otolaryngology, Hannover Medical School, Hannover, Germany.

Robert A Schuon (RA)

Department of Otolaryngology, Hannover Medical School, Hannover, Germany.

Frank Tavassol (F)

Hannover Medical School, Clinic for Cranio-Maxillo-Facial Surgery, Hannover, Germany.

Thomas Lenarz (T)

Department of Otolaryngology, Hannover Medical School, Hannover, Germany.
Hannover Medical School, Hearing4all Cluster of Excellence, Hannover, Germany.

Gerrit Paasche (G)

Department of Otolaryngology, Hannover Medical School, Hannover, Germany.
Hannover Medical School, Hearing4all Cluster of Excellence, Hannover, Germany.

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