<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2709-0817</journal-id>
<journal-title><![CDATA[Revista investigaciones y estudios-UNA]]></journal-title>
<abbrev-journal-title><![CDATA[Investig. estud. UNA]]></abbrev-journal-title>
<issn>2709-0817</issn>
<publisher>
<publisher-name><![CDATA[Dirección General de Investigación Científica y Tecnológica-UNA]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2709-08172026000100052</article-id>
<article-id pub-id-type="doi">10.18004/ieuna2709-0817/3117015715.2026</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Secuelas cognitivas en pacientes con COVID-19 grave: Evidencia preliminar desde Paraguay]]></article-title>
<article-title xml:lang="en"><![CDATA[Cognitive sequelae in patients with severe COVID-19: preliminary evidence from Paraguay]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Jara Casco]]></surname>
<given-names><![CDATA[Eliana M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gamarra Silva]]></surname>
<given-names><![CDATA[Edgar F.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodas Jara]]></surname>
<given-names><![CDATA[Ronaldo L.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodas Jara]]></surname>
<given-names><![CDATA[Liza R.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Delvalle]]></surname>
<given-names><![CDATA[Diana Báez]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez-Riveros]]></surname>
<given-names><![CDATA[María Isabel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Torales]]></surname>
<given-names><![CDATA[Julio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
<xref ref-type="aff" rid="A a"/>
<xref ref-type="aff" rid="A8"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional del Este Facultad de Filosofía ]]></institution>
<addr-line><![CDATA[Ciudad del Este ]]></addr-line>
<country>Paraguay</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Católica &#8220;Nuestra Señora de la Asunción&#8221; Facultad de Postgrado Campus Guairá]]></institution>
<addr-line><![CDATA[Villarrica ]]></addr-line>
<country>Paraguay</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Santa Clara de Asís Facultad de Ciencias de la Salud ]]></institution>
<addr-line><![CDATA[Caaguazú ]]></addr-line>
<country>Paraguay</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Guiarte Centro de Atención Integral ]]></institution>
<addr-line><![CDATA[Asunción ]]></addr-line>
<country>Paraguay</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad Nacional de Asunción Facultad de Enfermería y Obstetricia ]]></institution>
<addr-line><![CDATA[San Lorenzo ]]></addr-line>
<country>Paraguay</country>
</aff>
<aff id="Af6">
<institution><![CDATA[,Universidad Sudamericana Facultad de Ciencias de la Salud ]]></institution>
<addr-line><![CDATA[Salto del Guairá ]]></addr-line>
<country>Paraguay.</country>
</aff>
<aff id="Af7">
<institution><![CDATA[,Universidad de Los Lagos Vicerrectoría de Investigación y Postgrado ]]></institution>
<addr-line><![CDATA[Osorno ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af8">
<institution><![CDATA[,Universidad Nacional de Asunción Facultad de Ciencias Médicas Grupo de Investigación sobre Epidemiología de los Trastornos Mentales, Psicopatología y Neurociencias]]></institution>
<addr-line><![CDATA[San Lorenzo ]]></addr-line>
<country>Paraguay</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2026</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2026</year>
</pub-date>
<volume>17</volume>
<numero>1</numero>
<fpage>52</fpage>
<lpage>64</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_arttext&amp;pid=S2709-08172026000100052&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_abstract&amp;pid=S2709-08172026000100052&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_pdf&amp;pid=S2709-08172026000100052&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Este estudio preliminar analizó las alteraciones cognitivas en pacientes recuperados de COVID-19 grave, comparándolos con pacientes que cursaron formas leves de la enfermedad. Se evaluaron la memoria diferida, la atención, la fluidez verbal y el rendimiento cognitivo global mediante el Montreal Cognitive Assessment (MoCA), aplicado luego de la recuperación clínica. La muestra incluyó 20 adultos residentes en Ciudad del Este, Paraguay, distribuidos en dos grupos según la gravedad clínica. Los pacientes con COVID-19 grave presentaron menores puntuaciones en memoria diferida que aquellos con COVID-19 leve (3,1 ± 1,7 vs. 4,7 ± 0,7; p = 0,002), menor fluidez verbal (1,7 ± 0,8 vs. 2,4 ± 0,5; p = 0,002) y menor puntuación total del MoCA (20,5 ± 2,3 vs. 25,9 ± 1,9; p &lt; 0,001). Las diferencias en atención no alcanzaron significación estadística (p = 0,11). Estos hallazgos aportan evidencia preliminar sobre posibles secuelas cognitivas persistentes posteriores al COVID-19 grave y respaldan la necesidad de seguimiento neurocognitivo. Se recomienda realizar estudios longitudinales con muestras más amplias y análisis ajustados por edad, comorbilidades, nivel educativo y duración de la hospitalización.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract This preliminary study analyzed cognitive alterations in patients who had recovered from severe COVID-19, comparing them with patients who had experienced mild forms of the disease. Delayed memory, attention, verbal fluency, and global cognitive performance were assessed using the Montreal Cognitive Assessment (MoCA), administered after clinical recovery. The sample included 20 adults residing in Ciudad del Este, Paraguay, divided into two groups according to clinical severity. Patients with severe COVID-19 showed lower delayed memory scores than those with mild COVID-19 (3.1 ± 1.7 vs. 4.7 ± 0.7; p = 0.002), lower verbal fluency scores (1.7 ± 0.8 vs. 2.4 ± 0.5; p = 0.002), and lower total MoCA scores (20.5 ± 2.3 vs. 25.9 ± 1.9; p &lt; 0.001). Differences in attention did not reach statistical significance (p = 0.11). These findings provide preliminary evidence of possible persistent cognitive sequelae following severe COVID-19 and support the need for neurocognitive follow-up. Longitudinal studies with larger samples and analyses adjusted for age, comorbidities, educational level, and length of hospitalization are recommended.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[deterioro cognitivo]]></kwd>
<kwd lng="es"><![CDATA[atención]]></kwd>
<kwd lng="es"><![CDATA[memoria]]></kwd>
<kwd lng="es"><![CDATA[fluidez verbal]]></kwd>
<kwd lng="es"><![CDATA[COVID-19 grave]]></kwd>
<kwd lng="en"><![CDATA[cognitive impairment]]></kwd>
<kwd lng="en"><![CDATA[attention]]></kwd>
<kwd lng="en"><![CDATA[memory]]></kwd>
<kwd lng="en"><![CDATA[verbal fluency]]></kwd>
<kwd lng="en"><![CDATA[severe COVID-19]]></kwd>
</kwd-group>
</article-meta>
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