Bronchopulmonary system within the confines of post-COVID-19 syndrome: literature review

The purpose of this review is to describe the available scientific data on the post-COVID-19 syndrome, formulate the main approaches to classification, determine the potential mechanisms of its pathogenesis, as well as determine the mechanisms of the occurrence of bronchopulmonary system pathology within the framework of the post-COVID-19 syndrome. It is known that long-term persistence of COVID-19 symptoms significantly reduces the quality of life of patients through the direct or indirect effect of the SARS-CoV-2 virus on a number of organs and systems. The review examines in detail the possible pathogenetic mechanisms of the post-COVID-19 syndrome, describes and studies the most common consequences of acute COVID-19, taking into account the severity of the disease, including diseases of the respiratory system, in particular interstitial and broncho-obstructive diseases. Particular attention is paid to the above problems in order to describe and structure the available scientific data on lung diseases within the framework of the post-COVID-19 syndrome. It should be noted, however, that there are very few studies on pathogenesis of changes in the bronchopulmonary system in the post-COVID-19 period. The bulk of them affect only individual manifestations of diseases of the respiratory system, in particular cough and shortness of breath, and are not aimed at determining causeand-effect relationships and the relationship of these symptoms to a specific nosology. Taking into consideration the continued high incidence of COVID-19, there is no doubt that additional studies of bronchopulmonary manifestations of post-COVID-19 syndrome should be conducted. Information from the databases PubMed, eLibrary, Scopus, Jstor was used as literary sources.