Journal List > J Rhinol > v.25(2) > 1109235

Ye: The Predictive Factors of Olfactory Changes after Endoscopic Sinus Surgery

Abstract

Olfactory dysfunction is one of the most common complaints of patients with chronic rhinosinusitis. Patients who suffer from olfactory dysfunction report a negative effect on their overall quality of life. Chronic rhinosinusitis-related olfactory impairment is the most treatable form of olfactory disorder; however, outcomes after endoscopic sinus surgery (ESS) are challenging to predict. Previous studies have documented a wide range in overall improvement after ESS. The purpose of this study is to review the factors that predict changes in olfaction after ESS.

Figures and Tables

Fig. 1

Postoperative trends in olfactory improvement by olfactory status. SIT: Smell Identification Test (adapted from reference5)).

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Fig. 2

Olfactory function expressed as the mean threshold-discrimination-identification (TDI) score of the 116 patients who underwent Endoscopic Sinus Surgery in relation to previous sinus surgeries. TDI score significantly stepwise improved in both groups (both p<0.001), with a similar pattern between patients (p value for interaction <0.001) (adapted from reference18)).

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Fig. 3

Time series variation of improvement rates (%) at 3rd, 6th, 12th, 24th month after ESS. Note that olfaction was maintained after ESS in NECRS group, while patients in ECRS group showed a transient improvement, but then deteriorated. ECRS: eosinophilic chronic rhinosinusitis, NECRS: non-eosinophilic chronic rhinosinusitis (adapted from reference32)).

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