Background. The novel coronavirus infection COVID-19 can be manifested by damage to the organs of the gastrointestinal tract (GIT). Damage to the gastrointestinal tract by the SARS-CoV-2 virus leads to a violation of the microbial-tissue complex of the mucous membrane of the digestive tract. A common gastroenterological manifestation of COVID-19 is diarrhea. Aim. Study of the clinical features of gastroenterological disorders and the possibility of optimizing the treatment of diarrheal syndrome in patients with COVID-19 with a mild form of viral infection. Materials and methods. The observation group consisted of 230 patients with mild COVID-19: K-group (n=115) with respiratory symptoms, I group (n=115) with gastrointestinal manifestations in combination and without signs of respiratory damage. In order to compare the effectiveness of treatment of diarrheal syndrome, patients of group I are randomized into 2 subgroups: Ia (n=58) prebiotic treatment (Zacofalk) and Ib (n=57) enterosorbents. Results. The development of gastrointestinal symptoms with SARS-CoV-2 infection is significantly more often noted in comorbid patients (67%). Gastrointestinal symptoms were dominated by diarrhea (93.9%) and flatulence (76.5%), in 1/3 of patients they were the first manifestos of infection. It was established that in 98.4% of patients of group I (against 42.6% of the K-group) signs of infectious intoxication were detected. In patients with gastrointestinal lesions, an elongation of the febrile period by 91.5 days was noted, a later (6 days) verification of the viral etiology of the disease. It was found that in patients of group I, the regression of clinical symptoms, the duration of viral disease, the dynamics of antibody formation, the prognosis for the development of IBS-like disorders in the post-infectious period depended on the treatment. In patients taking (Zacofalk), these indicators were significantly better. Conclusion. In mild cases, to reduce the severity of viral intestinal damage, for effective relief of intestinal symptoms, to reduce the risk of IBS-like symptoms, it is advisable to prescribe (Zacofalk) in an initial dose of 3 tablets per day.
Over the past two years, the entire medical community has taken up the fight against the new coronavirus infection. At the initial encounter with COVID-19, it seemed that this virus mainly affects the respiratory system. Still, with long-term observation, it turned out that the consequences of this disease can be much more severe and associated with lung damage and thromboembolic complications, and be a trigger for autoimmune diseases. According to the literature, after suffering COVID-19, some patients debuted systemic lupus erythematosus, hemolytic anemia, thrombocytopenia, developed GuillainBarr syndrome, vasculitis, and multiple sclerosis, and a case of autoimmune hepatitis (AIH) was described in foreign literature. AIH is a fairly rare disease, the prevalence of which in Europe is 1618 cases per 100 thousand inhabitants, affecting mainly women. It is known that chemicals and drugs (minocycline, diclofenac, methyldopa, infliximab, etanercept), viruses (HAV, HEV, EBV, HCV, CMV), environmental factors can serve as triggers of the autoimmune process in the liver. This article presents two clinical cases of AIH that developed after suffering a new coronavirus infection, which we consider as the initial provoking factor of autoimmune inflammation. Given the rarity of AIH, the description of new triggers is of clinical interest. It may be useful for doctors of different specialties since they faced drug-induced liver damage against the background of antiviral and immunobiological therapy. In the domestic literature, there have not yet been any publications devoted to the debut of AIH in adults after coronavirus infection.
COVID-19 infection may present with gastrointestinal lesions in up to 25% of patients. One of the target organs of the SARS-CoV-2 virus is the intestine. The pathogenesis of intestinal damage in a new coronavirus infection remains unclear and requires further in-depth study. Possible mechanisms include a direct cytotoxic effect of the virus, a persistent reduction in butyrate-producing bacteria, side effects of drugs, Clostridioides difficile infection, microvascular thrombosis, and the immune-mediated inflammatory reactions in the intestine. The most common symptom of intestinal damage during coronavirus infection, both in the acute phase and in the post-COVID period, is diarrhea. The impact of many aggressive factors on the intestines can form both long-term functional disorders and be the cause of the onset of organic diseases. Treatment should be aimed at possible causes of intestinal damage (Clostridioides difficile), as well as reducing inflammation, restoring intestinal permeability, cytoprotection of mucosal cells, replenishing butyric acid deficiency. When choosing a therapy for intestinal disorders, preference should be given to drugs with a pleiotropic effect in order to influence various possible pathogenetic mechanisms.
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