ABSTRACT
Introduction: COVID-19 pandemic represents a challenge for healthcare systems, due to the impact on different systems, such as respiratory, cardiovascular and nervous systems. Background: to describe the neurological manifestations in patients with COVID-19. Methods: a search for information was carried out in the PubMed/Medline, SciELO, EBSCO, Lilacs and Scopus databases. A search strategy was applied by combining terms and using Boolean operators. Thirty references were chosen. Results: olfactory nerves and invasion of peripheral nerve terminals are suggested as routes of entry;the presence of severe neural symptoms associated with lesions of other organs and cytokine storm is also described. Headache was the most common neurological manifestation in patients with COVID-19, and rhabdomyolysis, acute hemorrhagic necrotizing encephalopathy, Guillain Barre syndrome, meningitis and encephalitis are rare neurological entities. In Guillain Barre syndrome, the literature suggests both a post infectious and para-infectious pattern. Conclusions: COVID-19 is associated with different neurological manifestations, including headache, dizziness, vertigo, vomiting, and alterations of consciousness, stroke and others not so frequent. These symptoms as a whole should be evaluated by healthcare personnel, with a view to their rapid detection and management, in order to guarantee the disappearance of sequelae that reduce the quality of life of patients, as well as to reduce the associated mortality records.
ABSTRACT
Introduction: the daily increase in cases and deaths, the economic losses in the millions suffered by affected nations and the consequent strain on the human resources involved in reversing this situation have made the COVID-19 pandemic an unprecedented international challenge. Background: to describe the orchestrated immune response following SARS-CoV-2 infection. Methods: an up-to-date bibliometric study was conducted on the type of articles stated in the objective, using a total of 30 bibliographies. Documentary review and analysis-synthesis methods were used to prepare the final report. Resources available on the Infomed network were used to select the information, specifically: PubMed and SciELO, through the databases: Medline, Search Premier and Scopus. Development: the core elements in the immunopathology of COVID-19 involve innate immunity, with the sustained increase of pro-inflammatory interleukins associated with failures in the interferon system, which can trigger a potentially fatal cytokine storm. In terms of elements linked to adaptive immunity, there is evidence of marked lymphopenia which, depending on the degree, may indicate the severity of the disease. Conclusions: understanding the orchestrated immune response following SARS-CoV-2 infection and its temporal sequence allows us to choose timely and effective therapies, specifically when selecting anti-inflammatory drugs and the time of their application, as it is difficult to determine when they will be clearly beneficial, that they do not impair the response and that it is not too late, given the irreversibility of the process.