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Abstract Background: Cognitive impairment is common following critical illness. A number of case reports and case series have suggested that cognitive deficits occur in patients with COVID-19. This study evaluated the frequency, severity, and profile of cognitive dysfunction in hospitalized patients recovering from COVID-19. Methods: We obtained and analyzed cross-sectional neuropsychological data from a cohort of N=57 patients participating in inpatient rehabilitation. Our primary outcome measure was the Brief Memory and Executive Test (BMET). We calculated the frequency of impairment based on clinician diagnosis and by the BMET subtests using age-normed classification of impairment. We explored associations with intubation and extubation as markers of illness severity and complications, as well as psychiatric diagnosis. Results: Our sample was 75% male, 61% non-white, with a mean age of 64.5 (SD = 13.9) years. Patients were evaluated at a mean of 43.2 days post-admission. 88% had documented hypoxemic respiratory failure and 77% required intubation. 81% of patients had cognitive impairment, ranging from mild to severe. Deficits were most common in working memory (55% of patients impaired), set-shifting (47%), divided attention (46%), and processing speed (40%). Executive dysfunction was not significantly associated with intubation length or the time from extubation to assessment, nor was it associated with the presence of a psychiatric diagnosis. Discussion and Conclusion: Medically stable inpatients recovering from COVID-19 commonly have deficits in attention and executive functions. These deficits were not significantly correlated with length of intubation or time since extubation. Findings provide an early benchmark for studying the evolution of cognitive difficulties after COVID-19 and suggest that easy to disseminate interventions that remediate attention and executive dysfunctions may be important in this population.
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10.1101/2020.10.28.20221887
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document_parses/pdf_json/d300edd85a87160a12d43fd9750f97d956235bac.json
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Frequency and profile of objective cognitive deficits in hospitalized patients recovering from COVID-19
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