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. 2019 Apr 26;1:16. doi: 10.1186/s42466-019-0021-5

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© The Author(s) 2019

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 1 — Tolerance, complications and alterations of cardiorespiratory parameters during FEES. a: Patients’ rating of FEES-associated discomfort ranging from none to severe; b: Incidence of complications; c: Incidence of complications in relation to the clinician’s FEES-experience. Numbers below columns give the number of FEES performed during prior training; d: Procedure-related changes of oxygen saturation (SaO2); E: Procedure-related changes of systolic blood pressure (RRsys); F: Procedure-related changes of heart rate (HR)