<?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. Cuban de 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>S0034-75232022000400011</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Composición de las urolitiasis y trastornos metabólicos renales en adultos cubanos]]></article-title>
<article-title xml:lang="en"><![CDATA[The composition of urolithiasis in Cuban adult patients and its relationship with renal metabolic disorders]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bacallao Méndez]]></surname>
<given-names><![CDATA[Raymed Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mañalich Comas]]></surname>
<given-names><![CDATA[Reynaldo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Roig Duarte]]></surname>
<given-names><![CDATA[Inés Magdalena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gutiérrez García]]></surname>
<given-names><![CDATA[Francisco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reyes González]]></surname>
<given-names><![CDATA[Médelin Rebeca]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández León]]></surname>
<given-names><![CDATA[Adilén]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto de Nefrología &#8220;Dr. Abelardo Buch López&#8221;  ]]></institution>
<addr-line><![CDATA[ La Habana]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<volume>61</volume>
<numero>4</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0034-75232022000400011&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0034-75232022000400011&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0034-75232022000400011&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción: La litiasis urinaria es una enfermedad común, cuya prevalencia se incrementa a escala nacional y planetaria.  Objetivos: Conocer la composición de las urolitiasis en pacientes adultos cubanos y su relación con los trastornos metabólicos renales.  Métodos: Estudio descriptivo, transversal. Universo constituido por los pacientes cubanos de 19 años y más de edad, que se realizaron estudio de composición de urolitiasis en el Instituto de Nefrología &#8220;Dr. Abelardo Buch&#8221;, de La Habana, Cuba, en el período comprendido de 2011-2020. De ellos 443 se habían realizado estudio metabólico renal. Los datos fueron recogidos de los informes de resultados, de composición de litiasis y de estudio metabólico. Se utilizó análisis de distribución de frecuencias, y para identificar las relaciones, el test independencia.  Resultados:  En cuanto a la composición química, predominaron las litiasis de oxalato de calcio. Los trastornos metabólicos más frecuentes fueron excreción de sodio aumentada (46,7 %) y volumen urinario bajo (29,3 %). La frecuencia de pacientes con litiasis cálcicas, fue superior en los que tuvieron excreción de sodio aumentada (78,3 %), y en los que presentaron hipercalciuria (83,3 %), en contraste con las frecuencias de este tipo de litiasis, en los que no presentaron dichos trastornos (p=0,03 en ambos casos).  Conclusiones: Las urolitiasis más comunes en adultos cubanos son las cálcicas, especialmente las de oxalato de calcio. Los trastornos metabólicos más frecuentes son: excreción urinaria aumentada de sodio, volumen urinario bajo y pH urinario ácido. La presencia de litiasis cálcicas se relaciona con excreción urinaria aumentada de sodio y con hipercalciuria.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction:  Urinary lithiasis is a common disease, whose prevalence is increasing on a national and planetary scale.  Objectives:  To know the composition of urolithiasis in Cuban adult patients and its relationship with renal metabolic disorders.  Methods:  Descriptive, cross-sectional study. Universe constituted by Cuban patients aged 19 and over, who underwent a composition study of urolithiasis at the &#8220;Dr. Abelardo Buch&#8221; Institute of Nephrology, in Havana, Cuba, in the period 2011-2020. In 443 of them, a renal metabolic study had also been carried out. The data were collected from the results reports of stone composition and metabolic study. Frequency distribution analysis was used, and the independence test was used to identify relationships.  Results: Regarding chemical composition, calcium oxalate stones predominated. The most frequent metabolic disorders were increased sodium excretion (46.7%) and low urine volume (29.3%). The frequency of patients with calcium stones was higher in those with increased sodium excretion (78.3%) and in those with hypercalciuria (83.3%), in contrast with the frequencies of this type of lithiasis, in those who did not present these disorders (p=0.03 in both cases).  Conclusions:  The most common urolithiasis in Cuban adults are calcium ones, especially those of calcium oxalate. The most common metabolic disorders are: increased urinary sodium excretion, low urinary volume and acid urinary pH. The presence of calcium lithiasis is related to increased urinary sodium excretion and hypercalciuria.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[litiasis]]></kwd>
<kwd lng="es"><![CDATA[hipercalciuria]]></kwd>
<kwd lng="es"><![CDATA[espectroscopía infrarroja]]></kwd>
<kwd lng="es"><![CDATA[sal]]></kwd>
<kwd lng="es"><![CDATA[volumen urinario]]></kwd>
<kwd lng="en"><![CDATA[lithiasis]]></kwd>
<kwd lng="en"><![CDATA[hipercalciuria]]></kwd>
<kwd lng="en"><![CDATA[infrared spectroscopy, salt, urinary volume]]></kwd>
</kwd-group>
</article-meta>
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