<?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>1726-8958</journal-id>
<journal-title><![CDATA[Revista Médica La Paz]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Méd. La Paz]]></abbrev-journal-title>
<issn>1726-8958</issn>
<publisher>
<publisher-name><![CDATA[Colegio Médico de La Paz]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1726-89582024000100027</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[LA OBESIDAD COMO FACTOR RIESGO PARA ERITROCITOSIS SECUNDARIA]]></article-title>
<article-title xml:lang="en"><![CDATA[OBESITY AS A RISK FACTOR FOR SECONDARY ERYTHROCYTOSIS]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Amaru]]></surname>
<given-names><![CDATA[Ricardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Velarde]]></surname>
<given-names><![CDATA[Jeaneth]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mamani]]></surname>
<given-names><![CDATA[Reyna]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Patón]]></surname>
<given-names><![CDATA[Daniela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mancilla]]></surname>
<given-names><![CDATA[Emma]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carrasco]]></surname>
<given-names><![CDATA[Mireya]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,UMSA Facultad de Medicina Unidad de Biología Celular]]></institution>
<addr-line><![CDATA[La Paz ]]></addr-line>
<country>Bolivia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Boliviano de Oncohematología  ]]></institution>
<addr-line><![CDATA[La Paz ]]></addr-line>
<country>Bolivia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,UMSA Facultad de Ciencias Puras y Naturales Carrera de Estadística]]></institution>
<addr-line><![CDATA[La Paz ]]></addr-line>
<country>Bolivia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2024</year>
</pub-date>
<volume>30</volume>
<numero>1</numero>
<fpage>27</fpage>
<lpage>32</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.bo/scielo.php?script=sci_arttext&amp;pid=S1726-89582024000100027&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.bo/scielo.php?script=sci_abstract&amp;pid=S1726-89582024000100027&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.bo/scielo.php?script=sci_pdf&amp;pid=S1726-89582024000100027&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción.  La obesidad es un problema de salud pública, está asociada exponencialmente al aumento del riesgo de desarrollar patologías como diabetes, cáncer, enfermedades cardiovasculares y pulmonares. En la altitud, la hipoxia hipobárica conllevaría una repercusión importante en personas con obesidad involucrando disminución de la funcionalidad pulmonar, incremento de HIF y de eritropoyetina que pueden condicionar el desarrollo de una eritrocitosis secundaria.  Objetivo.  Determinar el rol de la obesidad en la presentación de la eritrocitosis en un ambiente de hipoxia hipobárica.  Material y métodos.  Estudio descriptivo transversal con carácter retrospectivo que consideró 615 pacientes con eritrocitosis (EPA, ES) residentes a 3650 y 4150 m s. n. m., ciudades de La Paz y El Alto (Bolivia). Se analizó datos demográficos, clínicos y laboratoriales, considerando características del IMC según grados de obesidad.  Resultados.  Se observó que, el 7% que reflejaron IMC normal correlacionaron con EPA, mientras que el 93% distribuidos por grados de sobrepeso u obesidad correlacionaron con ES. Los eventos trombóticos estuvieron relacionados con el incremento eritropoyetina, no así con la obesidad. A mayor IMC, mayores fueron las concentraciones de eritropoyetina. La presentación de eritrocitosis fue representativa en varones (80 %), adicionalmente, la edad de presentación fue después de los 50 años de edad.  Conclusiones.  La obesidad constituye un factor de riesgo importante en la presentación de la eritrocitosis secundaria en grandes altitudes, su etiopatogenia está representada por el incremento de eritropoyetina sérica.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction. Obesity is a public health problem, it is associated with an increased risk of developing pathologies such as diabetes, cancer, cardiovascular or lung diseases. At high-altitude, hypobaric hypoxia may imply a significant impact in people with obesity, it involves a decrease in lung functionality, an increase of HIF and erythropoietin conditioning the development of secondary erythrocytosis.  Objective. To determine the role of obesity in the occurrence of erythrocytosis at a hypobaric hypoxia environment.  Material and methods. Retrospective cross-sectional descriptive study that considered 615 patients with erythrocytosis (EPA, ES) residing at 3650 and 4150 m, La Paz and El Alto cities from Bolivia. Demographic, clinical and laboratory data by considering patients BMI characteristics as well as degrees of obesity were analyzed.  Results. 7% corresponding to a normal BMI displayed correlation with CMS- erythrocytosis, while 93% distributed by degrees of overweight or obesity correlated with ES. Thrombotic events were related to increased erythropoietin, but not to obesity. The higher BMI, the higher erythropoietin concentrations were. Occurrence of erythrocytosis was representative in men (80%), likewise the occurrence age was after 50 years old.  Conclusions. Obesity constitutes an important risk factor in the occurrence of secondary erythrocytosis at high altitude, its etiopathogenesis is represented by increased serum erythropoietin.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[obesidad]]></kwd>
<kwd lng="es"><![CDATA[eritrocitosis]]></kwd>
<kwd lng="es"><![CDATA[eritropoyetina, hipoxia, gran altitud]]></kwd>
<kwd lng="en"><![CDATA[obesity]]></kwd>
<kwd lng="en"><![CDATA[erythrocytosis]]></kwd>
<kwd lng="en"><![CDATA[erythropoietin, hypoxia, high altitude]]></kwd>
</kwd-group>
</article-meta>
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