A European study for the validation of a retronasal test of olfaction.

Abstract

Event Abstract Back to Event A European study for the validation of a retronasal test of olfaction. Christos Merkonidis1*, Carl Philpott1, Mahmoud Salam1 and Thomas Hummel2 1 The Ipswich Hospital NHS Trust, United Kingdom 2 Dresden University Hospital, Smell and Taste Clinic, Germany There are various olfactory tests available for testing a patient’s sense of smell but these are essentially designed to test orthonasal olfaction. When eating food, however, it is retronasal olfaction that gives a person a sense of flavour. We present a study about the sense of smell via the retronasal route on both healthy and pathological subjects. This prospective study took place at The Ipswich Hospital and was part of a multicentre, pan-European study, which is conducted in order to validate this format of testing in a more ‘universal’ fashion. We included 28 patients (15 with no nasal disease and considered to have a normal sense of smell and 13 with active nasal pathology). All individuals were tested with 40 different odours in the form of powder, placed at the back of the tongue. In addition, all individuals had a validated orthonasal test in the form of the Sniffin Stick’s test. Olfactory disorders were due to inflammatory, infectious, idiopathic and congenital causes. There were significant differences between the healthy and pathological subjects (p<0.005) for both the orthonasal and retronasal tests. There was good correlation between the two tests in the group with nasal pathology (p<0.02). The powders most commonly incorrectly identified in both groups were cocoa, fish and almond. Retronasal testing in patients with olfactory disorders is proven to be an effective method in testing flavour perception. Conference: Summer School on Human Olfaction, Dresden, Germany, 19 Jul - 25 Jul, 2009. Presentation Type: Poster Presentation Topic: Abstracts Citation: Merkonidis C, Philpott C, Salam M and Hummel T (2009). A European study for the validation of a retronasal test of olfaction.. Conference Abstract: Summer School on Human Olfaction. doi: 10.3389/conf.neuro.09.2009.12.024 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 23 Jul 2009; Published Online: 23 Jul 2009. * Correspondence: Christos Merkonidis, The Ipswich Hospital NHS Trust, Suffolk, United Kingdom, merkonidis@hotmail.com Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract The Authors in Frontiers Christos Merkonidis Carl Philpott Mahmoud Salam Thomas Hummel Google Christos Merkonidis Carl Philpott Mahmoud Salam Thomas Hummel Google Scholar Christos Merkonidis Carl Philpott Mahmoud Salam Thomas Hummel PubMed Christos Merkonidis Carl Philpott Mahmoud Salam Thomas Hummel Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page.