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Features of the pathology of the lymphoid ring of the pharynx in children during the COVID-19 pandemic
Meditsinskiy Sovet ; 2022(23):330-334, 2022.
Article in Russian | Scopus | ID: covidwho-2227521
ABSTRACT
Introduction. For many years, one of the problems in medicine that attracted the attention of specialists from different areas of medicine was herpes virus infection. There are many reasons for this, including the often persistent nature of the course, a wide variety of clinical manifestations and routes of transmission, and many target organs of this infection. The disease can proceed in different ways, it has both asymptomatic, mild and rather severe course. For otorhinolaryngologists, Epstein-Barr virus (EBV), cytomegalovirus (CMV) and herpes virus 6 (HHV-6) are the most relevant and important in the context of the treated site of the pathological process. Since the end of 2020, humanity has faced a new, previously unexplored viral infection – a new coronavirus infection. And just like the previously studied herpes virus infection, COVID-19 has a large number of clinical manifestations and affects a huge number of organs and organ systems. Aim. To determine the types of interplay between COVID-19 and herpesviruses (EBV, CMV, HHV-6) in children of different ages with abnormalities of the lymphoid ring of pharynx. Materials and methods. In the course of the study, a comprehensive examination was carried out and the results of examination of children with pathology of the lymphoid ring of the pharynx who had herpes virus infection and COVID-19 were analyzed. Results. The results of the study obtained in the course of the work are consistent with the data that the virus carrier. The presence of an infectious agent triggers the production of macrophages and leads to clonal selection of T and B cells. Further, lymphocytes are transformed into lymphoblasts, which are capable of division and their transformation into plasma and B-memory cells occurs. As a result of this process, hypertrophy of the lymphoid tissue occurs and its reactive activity increases. (persistent herpesvirus infection) is one of the important causes of lymphoid proliferation in children. The combination of antigenic load and immaturity of the immune system in children is accompanied by an increase in the activity of lymphoid tissue and its compensatory activity. Conclusions. Past mild and asymptomatic COVID-19 can contribute to the reactivation of lymphotropic herpesviruses, first of all EBV, in 55-65% of children of preschool and school age. © 2022, Remedium Group Ltd. All rights reserved.
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Full text: Available Collection: Databases of international organizations Database: Scopus Type of study: Prognostic study Language: Russian Journal: Meditsinskiy Sovet Year: 2022 Document Type: Article

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Full text: Available Collection: Databases of international organizations Database: Scopus Type of study: Prognostic study Language: Russian Journal: Meditsinskiy Sovet Year: 2022 Document Type: Article