Treatment Approach to Chronic Rhinosinusitis Based on Endotype: Difference Between East and West.

Heterogeneity among CRSwNP patients in Western and Eastern countries leads to differences in management. Type 2 (T2) inflammation accounts for the majority of CRSwNP patients in Western countries, while non-T2 inflammation is the main endotype in CRSwNP patients in Eastern countries. Precise identification of T2 inflammation holds significant promise for optimising treatment outcomes. The treatment of T2 inflammation-biased CRSwNP primarily involves glucocorticoids, reboot surgery, and T2 biologics, while non-T2 inflammation-dominant CRSwNP is mainly treated with macrolide antibiotics.