[The changes of clinical characteristics of chronic rhinosinusitis in recent 10 years]

Objective: To analyze the dynamic changes of the clinical features of chronic rhinosinusitis in recent 10 years, so as to deeply understand the characteristics of chronic rhinosinusitis, and to provide new ideas for treatment of chronic rhinosinusitis. Method: This retrospective study was performed in patients who were diagnosed as chronic rhinosinusitis and enrolled. General information, clinical examination and pathological results were all collected, then patients' age, gender, the incidence of asthma and allergic rhinitis, peripheral eosinophil percentage, olfactory dysfunction and pathological results were statistically analyzed. Result: 1 955 patients who were diagnosed as chronic rhinosinusitis(CRS) were enrolled in this study, including 570 patients in 2006, 583 patients in 2010, and 802 patients in 2015. There were no obvious changes of age structure in these patients in three years. And there was no significant change in sex ratio as well. The proportions of patients with CRS concomitant with asthma were obviously increased in 10 years, which was 3.51% in 2006, 7.55% in 2010, and 17.58% in 2015. The proportions of patients with allergic rhinitis were also increased, which was 10.35% in 2006, 8.75% in 2010, and 14.09% in 2015. Peripheral eosinophil ratio was increased significantly in these patients after 2010. The proportions of ECRS in CRS were elevated in 2015 and almost doubled compared to 2006. Olfactory dysfunction increased significantly in 2015. Conclusion: In recent 10 years, there were obvious changes of clinical features of CRS. The proportion of patients with CRS concomitant with asthma showed a gradual increasing trend. ECRS significantly increased than it was 10 years ago. Olfactory dysfunction also increased significantly. In order to improve the therapeutic effect of CRS, it is necessary to strengthen the treatment of upper and lower airway inflammation related with eosinophil.