Neurological impacts after COVID-19: cognitive impairment and risk factors
DOI:
https://doi.org/10.11606/issn.1679-9836.v104i6e-234324Keywords:
Elderly, Risk Factors, Cognitive Rehabilitation, Cognitive Dysfunction, COVID-19Abstract
Introduction: SARS-CoV-2, which causes COVID-19, has caused a global pandemic since 2019, affecting multiple systems in addition to the respiratory system. Post-COVID-19 patients often experience neurological and cognitive sequelae. The virus can invade the central nervous system, triggering neuroinflammation and brain damage. Anxiety, depression, and cognitive deficits are common, especially in severe cases. Objective: To evaluate neurological impairment after COVID-19 and the predisposing and triggering factors for cognitive symptoms. Methods: A qualitative review of the literature on the cognitive impact of COVID-19 was carried out, consulting PubMed, MEDLINE, IBECS and LILACS via VHL. Studies from the last five years, in English, Portuguese or Spanish, on patients with post-infection cognitive symptoms were included. The selection followed strict criteria, with independent review by two authors. Results: 18 studies on the impacts of COVID-19 on cognition were analyzed. The majority revealed cognitive deficits, especially in the elderly and patients with comorbidities. Furthermore, the symptoms described in the literature seem to be associated with structural changes in the brain and neuropsychiatric manifestations, such as anxiety and depression, and are also frequently reported. The findings reinforce the need for neuropsychological monitoring, especially for moderate and severe cases. Conclusion: COVID-19 significantly impacts cognition, with persistent sequelae, especially in severe cases. Multidisciplinary monitoring is essential for the neurocognitive and psychosocial rehabilitation of survivors.
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