Change in subjective nasality outcome following FESS
There was a significant decrease in self-rating VAS scores for abnormal nasality after FESS in both groups. The total pre-operative VAS of abnormal nasality was 2.6 ± 2.8, and it significantly decreased to 0.8 ± 1.3 (p < 0.001) and 0.4 ± 0.7 (p < 0.001) at 6 and 12 months post-operatively, respectively. The percentage of patients that had significant abnormal nasality (VAS≧3) decreased to 9.5% (p = 0.021) and 0% (p < 0.001) at 6 and 12 months post-operatively, respectively. The percentage of noticeable abnormal nasality evaluated by patients’ partners significantly decreased (47.6% to 7.1%, p < 0.001), and no abnormal nasality significantly increased (33.3% to 85.8%, p < 0.001) 1 year after FESS. The SNOT-22 and Lund-Kennedy endoscopic scores significantly improved after surgery as well (Table 5).