Secuelas cognitivas en pacientes con COVID-19 grave: evidencia preliminar desde Paraguay
Palavras-chave:
Deterioro cognitivo, atención, memoria, fluidez verbal, COVID-19 graveResumo
Este estudo preliminar analisou as alterações cognitivas em pacientes que se recuperaram da COVID-19 grave, comparando-os com pacientes que apresentaram formas leves da doença. Foram avaliados a memória diferida, a atenção, a fluência verbal e o desempenho cognitivo global por meio do Montreal Cognitive Assessment (MoCA), aplicado após a recuperação clínica. A amostra incluiu 20 adultos residentes em Ciudad del Este, no Paraguai, distribuídos em dois grupos de acordo com a gravidade clínica. Os pacientes com COVID-19 grave apresentaram pontuações mais baixas na memória diferida do que aqueles com COVID-19 leve (3,1 ± 1,7 vs. 4,7 ± 0,7; p = 0,002), menor fluência verbal (1,7 ± 0,8 vs. 2,4 ± 0,5; p = 0,002) e menor pontuação total no MoCA (20,5 ± 2,3 vs. 25,9 ± 1,9; p < 0,001). As diferenças na atenção não alcançaram significância estatística (p = 0,11). Esses achados fornecem evidências preliminares sobre possíveis sequelas cognitivas persistentes após a COVID-19 grave e reforçam a necessidade de acompanhamento neurocognitivo. Recomenda-se a realização de estudos longitudinais com amostras mais amplas e análises ajustadas por idade, comorbidades, nível de escolaridade e duração da internação.
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Referências
Aboaja, A., Wahab, A., Cao, Y. Y., O’Higgins, M., & Torales, J. (2022). Mental health in the Republic of Paraguay. BJPsych International, 19(1), 10–12. https://doi.org/10.1192/bji.2021.24
Aguilar-Navarro, S. G., Mimenza-Alvarado, A. J., Palacios-García, A. A., Samudio-Cruz, A., Gutiérrez-Gutiérrez, L. A., & Ávila-Funes, J. A. (2018). Validity and reliability of the Spanish version of the Montreal Cognitive Assessment (MoCA) for the detection of cognitive impairment in Mexico. Revista Colombiana de Psiquiatría, 47(4), 237–243. https://doi.org/10.1016/j.rcp.2017.05.003
Alkodaymi, M. S., Omrani, O. A., Fawzy, N. A., Shaar, B. A., Almamlouk, R., Riaz, M., Obeidat, M., Obeidat, Y., Gerberi, D., Taha, R. M., Kashour, Z., Kashour, T., Berbari, E. F., Alkattan, K., & Tleyjeh, I. M. (2022). Prevalence of post-acute COVID-19 syndrome symptoms at different follow-up periods: A systematic review and meta-analysis. Clinical Microbiology and Infection, 28(5), 657–666. https://doi.org/10.1016/j.cmi.2022.01.014
Almeria, M., Cejudo, J. C., Sotoca, J., Deus, J., & Krupinski, J. (2020). Cognitive profile following COVID-19 infection: Clinical predictors leading to neuropsychological impairment. Brain, Behavior, & Immunity - Health, 9, 100163. https://doi.org/10.1016/j.bbih.2020.100163
American Psychological Association. (2017). Ethical principles of psychologists and code of conduct. https://www.apa.org/ethics/code
Becker, J. H., Lin, J. J., Doernberg, M., Stone, K., Navis, A., Festa, J. R., & Wisnivesky, J. P. (2021). Assessment of cognitive function in patients after COVID-19 infection. JAMA Network Open, 4(10), e2130645. https://doi.org/10.1001/jamanetworkopen.2021.30645
Boldrini, M., Canoll, P. D., & Klein, R. S. (2021). How COVID-19 affects the brain. JAMA Psychiatry, 78(6), 682–683. https://doi.org/10.1001/jamapsychiatry.2021.0500
Crivelli, L., Calandri, I., Corvalán, N., Carello, M. A., Keller, G., Martínez, C., Arruabarrena, M., & Allegri, R. (2022). Cognitive consequences of COVID-19: Results of a cohort study from South America. Arquivos de Neuro-Psiquiatria, 80(3), 240–247. https://doi.org/10.1590/0004-282X-ANP-2021-0320
Doskas, T., Vavougios, G. D., Kormas, C., Kokkotis, C., Tsiptsios, D., Spiliopoulos, K. C., Tsiakiri, A., Christidi, F., Aravidou, T., Dekavallas, L., Kazis, D., Dardiotis, E., & Vadikolias, K. (2025). Neurocognitive impairment after COVID-19: Mechanisms, phenotypes, and links to Alzheimer’s disease. Brain Sciences, 15(6), 564. https://doi.org/10.3390/brainsci15060564
Elboraay, T., Ebada, M. A., Elsayed, M., Aboeldahab, H. A., Salamah, H. M., Rageh, O., Elmallahy, M., AboElfarh, H. E., Mansour, L. S., Nabil, Y., Eltawab, A. K. A., Atwan, H., & Alkanj, S. (2025). Long-term neurological and cognitive impact of COVID-19: A systematic review and meta-analysis in over 4 million patients. BMC Neurology, 25(1), 250. https://doi.org/10.1186/s12883-025-04174-9
García-Molina, A., García-Carmona, S., Espiña-Bou, M., Rodríguez-Rajo, P., Sánchez-Carrión, R., & Enseñat-Cantallops, A. (2024). Neuropsychological rehabilitation for post-COVID-19 syndrome: Results of a clinical programme and six-month follow-up. Neurologia, 39(7), 592–603. https://doi.org/10.1016/j.nrleng.2022.06.007
Hampshire, A., Trender, W., Chamberlain, S. R., Jolly, A. E., Grant, J. E., Patrick, F., Mazibuko, N., Williams, S. C., Barnby, J. M., Hellyer, P., & Mehta, M. A. (2021). Cognitive deficits in people who have recovered from COVID-19. EClinicalMedicine, 39, 101044. https://doi.org/10.1016/j.eclinm.2021.101044
Hosp, J. A., Dressing, A., Blazhenets, G., Bormann, T., Rau, A., Schwabenland, M., Thurow, J., Wagner, D., Waller, C., Niesen, W. D., Frings, L., Urbach, H., Prinz, M., Weiller, C., Schroeter, N., & Meyer, P. T. (2021). Cognitive impairment and altered cerebral glucose metabolism in the subacute stage of COVID-19. Brain, 144(4), 1263–1276. https://doi.org/10.1093/brain/awab009
Jaywant, A., Vanderlind, W. M., Alexopoulos, G. S., Fridman, C. B., Perlis, R. H., & Gunning, F. M. (2021). Frequency and profile of objective cognitive deficits in hospitalized patients recovering from COVID-19. Neuropsychopharmacology, 46(13), 2235–2240. https://doi.org/10.1038/s41386-021-00978-8
Labos, E., Zabala, K., Renato, A., Trojanowski, S., Del Rio, M., Fustinoni, O., & Vázquez, N. (2021). Restricción cognitiva durante la cuarentena por COVID-19. Medicina (Buenos Aires), 81(5), 722–734. https://medicinabuenosaires.com/revistas/vol81-21/n5/indice.pdf
Manríquez-López, L., Saldaña García, C. N., Gómez Quiroz, R. M., Enríquez González, K. E., Aranda Montiel, S., García Ramírez, R., & Martínez Flores, F. G. (2021). Afectaciones cognitivo-lingüísticas en personas con COVID-19: Una revisión sistemática de la literatura empírica. Cuadernos de Neuropsicología (Panamerican Journal of Neuropsychology), 15(3), 37–53. https://doi.org/10.7714/CNPS/15.3.203
Mazza, M. G., Palladini, M., De Lorenzo, R., Magnaghi, C., Poletti, S., Furlan, R., Ciceri, F., COVID-19 BioB Outpatient Clinic Study Group, Rovere-Querini, P., & Benedetti, F. (2021). Persistent psychopathology and neurocognitive impairment in COVID-19 survivors: Effect of inflammatory biomarkers at three-month follow-up. Brain, Behavior, and Immunity, 94, 138–147. https://doi.org/10.1016/j.bbi.2021.02.021
Ministerio de Salud Pública y Bienestar Social. (2020). Plan Nacional de Respuesta a Virus Respiratorios 2020. https://www.mspbs.gov.py/dependencias/portal/adjunto/d7eb84ResolucinN91Seapruebaplannacionalderespuestaavirusrespiratorios2020.pdf
Ministerio de Salud Pública y Bienestar Social. (2021a, mayo 6). En casa: Rehabilitación respiratoria para pacientes. https://www.mspbs.gov.py/portal/23088/en-casa-rehabilitacion-respiratoria-para-pacientes.html
Ministerio de Salud Pública y Bienestar Social. (2021b, junio 20). Post COVID-19: Ejercicios de rehabilitación para hacerlos en casa. https://www.mspbs.gov.py/portal/23379/post-covid-19-ejercicios-de-rehabilitacion-parahacerlos-en-casa.html
Ministerio de Salud Pública y Bienestar Social. (2024). Plan Nacional de Respuesta ante Emergencias con Enfoque Multiamenazas (Resolución S. G. N.º 770/2024). https://www.mspbs.gov.py/portal/32902/salud-apruebaplan-nacional-de-respuesta-ante-emergencias-con-enfoque-multiamenazas.html
Miskowiak, K. W., Johnsen, S., Sattler, S. M., Nielsen, S., Kunalan, K., Rungby, J., Lapperre, T., & Porsberg, C. M. (2021). Cognitive impairments four months after COVID-19 hospital discharge: Pattern, severity and association with illness variables. European Neuropsychopharmacology, 46, 39–48. https://doi.org/10.1016/j.euroneuro.2021.03.019
Nasreddine, Z. S., Phillips, N. A., Bédirian, V., Charbonneau, S., Whitehead, V., Collin, I., Cummings, J. L., & Chertkow, H. (2005). The Montreal Cognitive Assessment, MoCA: A brief screening tool for mild cognitive impairment. Journal of the American Geriatrics Society, 53(4), 695–699. https://doi.org/10.1111/j.1532-5415.2005.53221.x
Organización Panamericana de la Salud. (2023). Condición post COVID-19 (COVID largo). https://www.paho.org/es/temas/coronavirus/brote-enfermedad-por-coronavirus-covid-19/condicion-postcovid-19
Pérez Sánchez, M. (2022). Síntomas cognitivos en la COVID-19 persistente: Un análisis neuropsicológico [Trabajo de máster, Universidad de Catalunya]. Repositorio UOC. http://hdl.handle.net/10609/139907
Taquet, M., Geddes, J. R., Husain, M., Luciano, S., & Harrison, P. J. (2021). 6-month neurological and psychiatric outcomes in 236,379 survivors of COVID-19: A retrospective cohort study using electronic health records. The Lancet Psychiatry, 8(5), 416–427. https://doi.org/10.1016/S2215-0366(21)00084-5
Thomas, M., Hameed, M., Hussein, M., George, S., Rajalekshmi, M. R., Akram, J., Sharma, R., Al Adab, A. H. O., Ahmad, M., Singh, R., & Raza, T. (2024). A prospective cohort study on cognitive and psychological outcomes in COVID-19 ICU survivors at 3 months of follow-up. Frontiers in Medicine, 11, 1288761. https://doi.org/10.3389/fmed.2024.1288761
Torales, J., & Barrios, I. (2023). Diseño de investigaciones: Algoritmo de clasificación y características esenciales. Medicina Clínica y Social, 7(3), 210–235. https://doi.org/10.52379/mcs.v7i3.349
World Medical Association. (2013). Declaration of Helsinki: Ethical principles for medical research involving human subjects. JAMA, 310(20), 2191–2194. https://doi.org/10.1001/jama.2013.281053
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Copyright (c) 2026 Eliana M. Jara Casco, Edgar Fernando Gamarra Silva, Ronaldo L. Rodas Jara, Liza R. Rodas Jara, Diana Báez Delvalle, María Isabel Rodríguez- Riveros, Julio Torales

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