Universität zu Köln

Meyer, M. F., Jansen, S., Mordkovich, O., Huettenbrink, K. -B. and Beutner, D. (2017). Reliability of Eustachian tube function measurements in a hypobaric and hyperbaric pressure chamber. Clin. Otolaryngol., 42 (6). S. 1343 - 1350. HOBOKEN: WILEY. ISSN 1749-4486

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Abstract

ObjectivesMeasurement of the Eustachian tube (ET) function is a challenge. The demand for a precise and meaningful diagnostic tool increasesespecially because more and more operative therapies are being offered without objective evidence. The measurement of the ET function by continuous impedance recording in a pressure chamber is an established method, although the reliability of the measurements is still unclear. MethodsTwenty-five participants (50 ears) were exposed to phases of compression and decompression in a hypo- and hyperbaric pressure chamber. The ET function reflecting parametersET opening pressure (ETOP), ET opening duration (ETOD) and ET opening frequency (ETOF)were determined under exactly the same preconditions three times in a row. The intraclass correlation coefficient (ICC) and Bland and Altman plot were used to assess test-retest reliability. ResultsICCs revealed a high correlation for ETOP and ETOF in phases of decompression (passive equalisation) as well as ETOD and ETOP in phases of compression (active induced equalisation). Very high correlation could be shown for ETOD in decompression and ETOF in compression phases. The Bland and Altman graphs could show that measurements provide results within a 95% confidence interval in compression and decompression phases. ConclusionsWe conclude that measurements in a pressure chamber are a very valuable tool in terms of estimating the ET opening and closing function. Measurements show some variance comparing participants, but provide reliable results within a 95% confidence interval in retest. This study is the basis for enabling efficacy measurements of ET treatment modalities.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Meyer, M. F. UNSPECIFIED UNSPECIFIED UNSPECIFIED Jansen, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Mordkovich, O. UNSPECIFIED UNSPECIFIED UNSPECIFIED Huettenbrink, K. -B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Beutner, D. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-209714
DOI:	10.1111/coa.12884
Journal or Publication Title:	Clin. Otolaryngol.
Volume:	42
Number:	6
Page Range:	S. 1343 - 1350
Date:	2017
Publisher:	WILEY
Place of Publication:	HOBOKEN
ISSN:	1749-4486
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language TUBOPLASTY; DYSFUNCTION; IMPACT Multiple languages Otorhinolaryngology Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/20971