Post COVID Syndrome: the Classification of Clinical Forms

Background. After a coronavirus infection, a number of people have long-term health abnormalities, often requiring therapeutic intervention. Aims — to describe the features of the course of the convalescence period in patients who have had a coronavirus infection caused by the SARS-CoV-2 virus. Methods. A special questionnaire was prepared for patients, which included questions to assess the course of the convalescence period in patients who had a coronavirus infection caused by the SARS-CoV-2 virus. The survey was conducted electronically on the platform testograf.ru. Results. The study involved 24,126 people aged 18 to 95 years. After the primary disease, 67.58% of respondents had complaints, and 66.1% had complaints after the second one. Asthenic syndrome, cognitive and memory disorders were most often recorded, as well as respiratory function disorders (cough, shortness of breath) and gastrointestinal tract functions (diarrhea, constipation, dyspepsia), olfactory and taste disorders, hair loss. Skin manifestations, decreased visual acuity, complaints of frequent acute respiratory infections, sleep disorders, prolonged subfebrility and others were rare. Among the group of patients who had an exacerbation of somatic pathology, the most significant were diseases of the cardiovascular system and musculoskeletal system. After a coronavirus infection in the form of pneumonia in the period of convalescence, respiratory disorders were significantly more often recorded, and in the gastrointestinal form, damage to the gastrointestinal tract. Conclusions. the classification of clinical forms of postcovid syndrome includes four main blocks of clinical manifestations of the period of convalescence of coronavirus infection: virus-associated manifestations, iatrogenic, genetically determined, associated with somatic pathology.