As world statistics show, 60% of patients with chronic rhinosinusitis develop bronchopulmonary pathology. According to foreign authors, the number of patients with chronic rhinosinusitis increases annually by 1.5-2%, and today more than 2/3 of inpatients are affected by this pathology. Due to the anatomical, physiological and complementary characteristics of the upper and lower respiratory tracts, there is a tendency towards a protracted course of rhinosinusitis, which in turn leads to the spread of the infectious process to the lower respiratory tract. It should be noted that existing foci of infection in the upper respiratory tract spread to the lower respiratory tract through microaspiration after an acute respiratory illness, which is the cause of the development of chronic bronchitis, bronchial asthma, and in particular pneumonia. It should be noted that despite the efforts of a number of specialists in the treatment of penmonia, in recent years there has been a significant increase in the incidence rate, as well as, unfortunately, an increase in mortality among people of various age groups.

Chronic rhinosinusitis, upper and lower respiratory tract, community-acquired pneumonia

A.I. Kryukov, G.Yu. Tsarapin, S.G. Romanenko, A.S. Tovmasyan, S.A. Panasov. Prevalence and structure of diseases of the nose and paranasal sinuses among the adult population of a metropolis. Russian rhinology, // [The prevalence and structure of diseases of the nose and paranasal sinuses among the adult population of the metropolis] 2017. - No. 1.-P.3-6.

Volkov A.G. Gentle instrumental treatment of rhinosinusitis (literature review). Russian otorhinolaryngology, // [Sparing instrumental treatment of rhinosinusitis] 2017.-No. 3.-P.86-93. (In Russian).

A.G. Chuchalin. Pneumonia: An urgent problem in medicine of the 21st century. Pulmonology // [The current problem of medicine of the 21st century. Pulmonology]. 2015; 25 (2): p. 133–142 (In Russian).

A. S. Lopatin. Acute rhinosinusitis: clinical recommendations // [Acute rhinosinusitis: clinical recommendations]. Russian Society of Rhinologists. – M., 2017. – 36 p. (In Russian).

Ryazantsev S.V. Acute sinusitis. Approaches to therapy (methodological recommendation). // [Acute sinusitis. Approaches to therapy (methodical recommendation)]. M., 2003. 16 p. (In Russian).

Abelenda-Alonso G. et al. Influenza and bacterial coinfection in adults with community-acquired pneumonia admitted to conventional wards: risk factors, clinical features, and outcomes //Open forum infectious diseases. – US : Oxford University Press, 2020. – Т. 7. – №. 3. – С. 66.

Achar P., Duvvi S., Kumar B. N. Endoscopic dilatation sinus surgery (FEDS) versus functional endoscopic sinus surgery (FESS) for treatment of chronic rhinosinusitis: a pilot study //Acta Otorhinolaryngologica Italica. – 2012. – Т. 32. – №. 5. – С. 314.

Albiabi S. A. et al. Postnasal Drip Syndrome and Cough, Management and Diagnostic Approach in Primary Health Care Centre //Archives of Pharmacy Practice. – 2020. – Т. 1. – С. 127.

Frei C. R., Labreche M. J., Attridge R. T. Fluoroquinolones in Community-Acquired Pneumonia //Drugs. – 2011. – Т. 71. – №. 6. – С. 757-770.

Hayward G. et al. Intranasal corticosteroids in management of acute sinusitis: a systematic review and meta-analysis //The Annals of Family Medicine. – 2012. – Т. 10. – №. 3. – С. 241-249.

King L. M. et al. Antibiotic therapy duration in US adults with sinusitis //JAMA internal medicine. – 2018. – Т. 178. – №. 7. – С. 992-994.