<?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>0120-4157</journal-id>
<journal-title><![CDATA[Biomédica]]></journal-title>
<abbrev-journal-title><![CDATA[Biomédica]]></abbrev-journal-title>
<issn>0120-4157</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Salud]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-41572017000300361</article-id>
<article-id pub-id-type="doi">10.7705/biomedica.v34i2.3177</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Detección de anticuerpos contra Trypanosoma cruzi en pacientes multitransfundidos, Colombia]]></article-title>
<article-title xml:lang="en"><![CDATA[Detection of Trypanosoma cruzi antibodies in multitransfused patients in Colombia]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Beltrán]]></surname>
<given-names><![CDATA[Mauricio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Herrera]]></surname>
<given-names><![CDATA[Andrea]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Flórez]]></surname>
<given-names><![CDATA[Astrid Carolina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Berrío]]></surname>
<given-names><![CDATA[Maritza]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bermúdez]]></surname>
<given-names><![CDATA[María Isabel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Nacional de Salud Coordinación Nacional de Red de Bancos de Sangre ]]></institution>
<addr-line><![CDATA[Bogotá D.C]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Red Chagas Colombia  ]]></institution>
<addr-line><![CDATA[Bogotá D.C]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Nacional de Salud Grupo de Parasitología ]]></institution>
<addr-line><![CDATA[Bogotá D.C]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2017</year>
</pub-date>
<volume>37</volume>
<numero>3</numero>
<fpage>361</fpage>
<lpage>367</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-41572017000300361&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-41572017000300361&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-41572017000300361&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción.  La enfermedad de Chagas es un problema de salud pública en Latinoamérica y, aunque la transmisión vectorial es la más importante, deben evaluarse otras formas de transmisión, como la de las transfusiones.  Objetivo.  Describir la prevalencia de infección con Trypanosoma cruzi en pacientes sometidos a múltiples transfusiones o multitransfundidos.  Materiales y métodos.  Se detectaron anticuerpos IgG contra T. cruzi mediante dos inmunoensayos en muestras tomadas de pacientes sometidos a múltiples transfusiones en cuatro hospitales de Bogotá y Medellín, Colombia. Se analizó la asociación de factores de riesgo conocidos y se calcularon las razones de momios (odds ratio, OR) con un intervalo de confianza de 95 % (IC) utilizando el programa Stata 11(tm).  Resultados.  Se evaluaron 479 muestras. La prevalencia de anticuerpos contra T. cruzifue de 1,88 % (nueve pacientes): cinco pacientes remitidos de oncohematología, dos de hemodiálisis, uno tenía talasemia y uno había sufrido pérdida súbita y abundante de sangre. No se halló ningún paciente con hemofilia que resultara positivo, ni relación de los factores de riesgo de infección asociados con la transfusión de componentes sanguíneos, como el número de transfusiones, la cantidad de unidades de sangre y el tipo de componente, con la presencia de anticuerpos anti-T. cruzi. Solo se encontró relación entre la infección con el virus de la hepatitis C y la presencia de anticuerpos anti-T. cruzi (OR=5,68; IC95% 1,36-23,63).  Conclusión.  La frecuencia de infección por T. cruzi hallada en este grupo de pacientes sugiere que el riesgo de infección por transfusiones en Colombia es bajo. No se encontró relación entre los factores de riesgo asociados con la transfusión y la presencia de anticuerpos anti-T. cruzi.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction:  Chagas disease is a public health problem in Latin America. Even though vector-borne infection is the most important transmission mode for this disease, other modes such as transfusions require evaluation.  Objective:  To describe the prevalence of T. cruzi infection in multitransfused patients.  Materials and methods:  We detected IgG antibodies against T. cruzi by two immunoassays in samples from multitransfused patients in four hospitals located in Bogotá and Medellín, Colombia. We analyzed the association with known risk factors, and we calculated the odds ratios (OR) with 95% confidence intervals using Stata 11(tm) statistical software.  Results:  In total, 479 samples were tested. Overall, T. cruzi antibody prevalence was 1.88% (nine patients). Five were onco-hematological patients, two were hemodialyzed, one had thalassemia, and one had suffered acute blood loss. We found no hemophilia patients. There was no association between known risk factors for transfusion-transmitted infection (such as the number of transfusion events, number of blood units and type of blood component) and the presence of anti-T. cruzi antibodies in this study. Only the hepatitis C virus infection showed a positive association with the presence of anti-T. cruzi antibodies (OR=5.68, 95% CI: 1.36-23.63).  Conclusions:  The results of this study showed a low frequency of T. cruzi infection in multitransfused patients, suggesting that the risk of transfusion infection in Colombia is low. Known risk factors for transfusion-related infection were not associated with the presence of anti-T. cruzi antibodies.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[cruzi]]></kwd>
<kwd lng="es"><![CDATA[transfusión sanguínea]]></kwd>
<kwd lng="es"><![CDATA[prevalencia]]></kwd>
<kwd lng="es"><![CDATA[factores de riesgo]]></kwd>
<kwd lng="es"><![CDATA[anticuerpos]]></kwd>
<kwd lng="es"><![CDATA[hemofilia A]]></kwd>
<kwd lng="en"><![CDATA[cruzi]]></kwd>
<kwd lng="en"><![CDATA[blood transfusion]]></kwd>
<kwd lng="en"><![CDATA[prevalence]]></kwd>
<kwd lng="en"><![CDATA[risk factors]]></kwd>
<kwd lng="en"><![CDATA[antibodies]]></kwd>
<kwd lng="en"><![CDATA[hemophilia A]]></kwd>
</kwd-group>
</article-meta>
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