Improving the effectiveness of treatment of chronic rhinosinusitis (CRS) is a priority task of modern otorhinolaryngology, not only domestic, but also foreign. This interest in the problem is due to the widespread prevalence of this pathology. In different countries, the criteria for accounting for the incidence, algorithms for the diagnosis and treatment of rhinosinusitis differ significantly, and for CRS these differences are more pronounced than for acute. A retrospective analysis of the structure and prevalence of ENT diseases according to inpatient observations for 5 years showed that chronic diseases of the nose and paranasal sinuses (SNP) occupied a priority place among hospitalized patients (45.8 ± 0.9% and 55.5 ± 1,0%). In the structure of the main diseases of SNP, the largest share in the adult population is occupied by inflammation of the maxillary sinus (HPP), in which there is an annual increase in the incidence of 1-1.5%, the second most frequent is inflammation of the ethmoid labyrinth cells, then the frontal and sphenoid sinuses.
