<?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>0034-7523</journal-id>
<journal-title><![CDATA[Revista Cubana de Medicina]]></journal-title>
<abbrev-journal-title><![CDATA[Rev cubana med]]></abbrev-journal-title>
<issn>0034-7523</issn>
<publisher>
<publisher-name><![CDATA[Centro Nacional de Información de Ciencias MédicasEditorial Ciencias Médicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0034-75232021000200011</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Hiponatremia en pacientes geriátricos con insuficiencia cardiaca]]></article-title>
<article-title xml:lang="en"><![CDATA[Hyponatremia in geriatric patients with heart failure]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fonseca González]]></surname>
<given-names><![CDATA[Katia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez Reyes]]></surname>
<given-names><![CDATA[Jorge Alexis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Marrero Martínez]]></surname>
<given-names><![CDATA[Dialexzy]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Salazar Rodríguez]]></surname>
<given-names><![CDATA[Jorge Félix]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Universitario Clínico Quirúrgico &#8220;Calixto García&#8221;  ]]></institution>
<addr-line><![CDATA[La Habana ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2021</year>
</pub-date>
<volume>60</volume>
<numero>2</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0034-75232021000200011&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0034-75232021000200011&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0034-75232021000200011&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción:  La hiponatremia es la alteración electrolítica más frecuente en el paciente geriátrico. Existen evidencias que la asocian a un peor pronóstico en pacientes con insuficiencia cardiaca.  Objetivo:  Caracterizar los pacientes geriátricos ingresados con hiponatremia al ingreso e insuficiencia cardíaca.  Método:  Se realizó un estudio descriptivo, longitudinal y prospectivo durante el año 2018 en el Hospital Universitario Clínico Quirúrgico &#8220;Calixto García&#8221; que incluyó 260 pacientes con insuficiencia cardíaca e hiponatremia al ingreso. Para el análisis estadístico de los datos reutilizaron la prueba de chi cuadrada y el análisis multivariado de ANOVA para la asociación entre variables.  Resultados:  La edad media fue 72,6 ± 8,2, predominaron las mujeres (55,0 %). Prevaleció la puntuación de Charlson 3-4 (33,8 %), la fracción de eyección conservada, 70,8 %; clase funcional III, 33,8 %; estadía menor a 6 días, 43,1 % y fallecieron 51,9 % de la muestra estudiada. Se asociaron significativamente con la mortalidad al egreso, el índice de comorbilidad y la clase funcional III-IV, p&lt; 0,05.  Conclusiones:  Existe una elevada mortalidad en pacientes geriátricos hospitalizados por insuficiencia cardiaca e hiponatremia al ingreso asociada a la presencia de comorbilidad y a la clasificación de la insuficiencia cardiaca.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction:  Hyponatremia is the most frequent electrolyte alteration in geriatric patients. There is evidence that associates it with a worse prognosis in patients with heart failure.  Objective:  To describe geriatric patients admitted with hyponatremia on admission and heart failure.  Method:  A descriptive, longitudinal and prospective study was carried out in 2018 at Calixto García Surgical Clinical University Hospital, including 260 patients with heart failure and hyponatremia on admission. For the statistical analysis of the data, they reused the chi-square test and the multivariate analysis of ANOVA for the association between variables.  Results:  The mean age was 72.6 ± 8.2, women predominated (55.0%). Prevalence was observed in the Charlson score 3-4 (33.8%), the ejection fraction preserved (70.8%); functional class III was 33.8%; 43.1% stayed less than 6 days and 51.9% of the sample studied died. They were significantly associated with mortality at discharge, the comorbidity index and functional class III-IV, p &lt;0.05.  Conclusions:  There is a high mortality in geriatric patients hospitalized for heart failure and hyponatremia on admission associated with the presence of comorbidity and the classification of heart failure.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Hiponatremia]]></kwd>
<kwd lng="es"><![CDATA[insuficiencia cardíaca]]></kwd>
<kwd lng="es"><![CDATA[paciente geriátrico]]></kwd>
<kwd lng="en"><![CDATA[Hyponatremia]]></kwd>
<kwd lng="en"><![CDATA[heart failure]]></kwd>
<kwd lng="en"><![CDATA[geriatric patient]]></kwd>
</kwd-group>
</article-meta>
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