Journal
RHINOLOGY
Volume 53, Issue 1, Pages 29-34Publisher
INT RHINOLOGIC SOC
DOI: 10.4193/Rhin14.160
Keywords
olfaction; nasal polyposis; endoscopic sinus surgery; olfactory test; anosmia
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Objectives: To assess subjective improvement of olfactory function following endoscopic sinus surgery (ESS) in chronic rhinosinusitis associated with nasal polyps (CRSwNP) and to analyse factors of recovery with the European Test of Olfactory Capabilities (ETOC). Methods: We carried out a prospective study of 30 patients with CRSwNP from November 2011 to April 2013. The ETOC was filled the day before surgery and in the short term follow-up. Sixteen suprathreshold odorants with a detection task and a forced choice verbal identification task were tested. Results: The mean composite score (MCS) improved at 3 and 6 months, The preoperative MCS was correlated to the Lund-Mackay score and to the olfactory cleft opacification on preoperative computed tomography (CT) scan. Multivariate linear regression modelling of patients with preoperative anosmia showed that the olfactory recovery at 3 months was predicted by the preoperative Lund-Mackay score and the age, and at 6 months by the preoperative Lund-Mackay score. Conclusion: With a convenient psychophysical test, we showed that olfactory cleft opacification and CT scan score could be predictive factors of olfaction disorder severity and improvement after ESS in CRSwNR These results need to be strengthened in the long term with a larger panel of patients.
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