Key points
1. The aim of this study was to evaluate the effectiveness of olfactory
training (OT) in patients with CRS after sinonasal surgery.
2. Patients were divided into an OT group that received frequent
short-term exposure to various odors over a 12-week period, and their
olfactory function was compared to that of a control group that did not
receive post-operative OT.
3. OT patients exhibited significantly higher total TDI scores compared
to non-OT patients at the end of 3 months. In the subset analysis, the
odor identification scores differed between the two groups after 3
months.
4. Age, sex, median duration, and LM score at baseline assessment were
not correlated with recovery of olfactory function.
5. The group with anosmia at baseline assessment showed a significantly
higher increase in KVSS-II test results compared with the other patients
Keywords: Sinonasal surgery; Olfactory recovery; Olfactory
training