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13.12.2018 | Review Article | Ausgabe 3/2019

European Archives of Oto-Rhino-Laryngology 3/2019

A systematic review of current methodology of high resolution pharyngeal manometry with and without impedance

European Archives of Oto-Rhino-Laryngology > Ausgabe 3/2019
Katharina Winiker, Anna Gillman, Esther Guiu Hernandez, Maggie-Lee Huckabee, Kristin Gozdzikowska
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Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1007/​s00405-018-5240-9) contains supplementary material, which is available to authorized users.



This systematic review appraises and summaries methodology documented in studies using high resolution pharyngeal manometry (HRM) with and without impedance technology (HRIM) in adult populations.


Four electronic databases CINAHL, EMBASE, MEDLINE, and Cochrane Library were searched up to, and including March 2017. Studies reporting pharyngeal HRM/HRIM for swallowing and/or phonatory assessment, published in peer-reviewed journals in English, German, or Spanish were assessed for the inclusion criteria. Of the selected studies, methodological aspects of data acquisition and analysis were extracted. Publications were graded based on their level of evidence and quality of methodological aspects was assessed.


Sixty-two articles were identified eligible, from which 50 studies reported the use of HRM and 12 studies used HRIM. Of all included manuscripts, the majority utilized the ManoScan™ system (64.5%), a catheter diameter of 4.2 mm was most prevalently documented (30.6%). Most publications reported the application of topical anesthesia (53.2%). For data analysis in studies using HRM, software intrinsic to the recording system was reported most frequently (56%). A minority of the studies using HRM provided data about measurement reliability (10%). This is higher for studies using HRIM (50%).


Considerable methodological variability exists regarding data acquisition and analysis in published studies using HRM/HRIM. Lacking reports of methodology make study replications difficult and reduce the comparability across studies. More data regarding the impact of individual methodological aspects on study outcomes are further required for the development of methodological recommendations.

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