<?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[Biomed.]]></abbrev-journal-title>
<issn>0120-4157</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Salud]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-41572022000300440</article-id>
<article-id pub-id-type="doi">10.7705/biomedica.6505</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Persistent left superior vena cava as an incidental fnding in the introduction of a transient pacemaker: A case report]]></article-title>
<article-title xml:lang="es"><![CDATA[Vena cava superior izquierda persistente como hallazgo incidental en la introducción de un marcapasos transitorio: informe de un caso]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Echeverry]]></surname>
<given-names><![CDATA[David Ricardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Buitrago]]></surname>
<given-names><![CDATA[Juan Guillermo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Restrepo]]></surname>
<given-names><![CDATA[Andrés Alirio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Morales]]></surname>
<given-names><![CDATA[Cristhian David]]></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="A5 "/>
<xref ref-type="aff" rid="Af6"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Universitario San Jorge de Pereira  ]]></institution>
<addr-line><![CDATA[Pereira ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Tecnológica de Pereira  ]]></institution>
<addr-line><![CDATA[Pereira ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,EBM Developing Countries Foundation  ]]></institution>
<addr-line><![CDATA[Guadalajara de Buga ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Comfandi IPS  ]]></institution>
<addr-line><![CDATA[Guadalajara de Buga ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad Tecnológica de Pereira  ]]></institution>
<addr-line><![CDATA[Pereira ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af6">
<institution><![CDATA[,Universidad Autónoma de Manizales  ]]></institution>
<addr-line><![CDATA[Manizales ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2022</year>
</pub-date>
<volume>42</volume>
<numero>3</numero>
<fpage>440</fpage>
<lpage>444</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-41572022000300440&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-41572022000300440&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-41572022000300440&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The persistent left superior vena cava is the most common venous anomaly in the systemic drainage in adults and tends to be asymptomatic. The persistent left superior vena cava causes rhythm disorders such as tachyarrhythmias or bradyarrhythmias. We report a case of persistent left superior vena cava diagnosed in a 53-year-old female patient admitted due to an acute coronary syndrome associated with unstable bradycardia. A transvenous peacemaker impressed the left atrium; therefore, a transthoracic echocardiogram was required to diagnose persistent left superior vena cava. The patient needed management with percutaneous intervention; she had an adequate evolution and subsequent discharge from the intensive care unit]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La vena cava superior izquierda persistente es la anomalía venosa más frecuente en el drenaje sistémico en adultos; tiende a ser asintomática, pero causa trastornos del ritmo como taquiarritmias o bradiarritmias. Se presenta un caso de vena cava superior izquierda persistente diagnosticada en una paciente de 53 años hospitalizada por un síndrome coronario agudo asociado a bradicardia inestable. Un marcapasos transvenoso dejó una impresión en la aurícula izquierda, por lo que se requirió un ecocardiograma transtorácico para diagnosticar la vena cava superior izquierda persistente. La paciente necesitó una intervención percutánea con una adecuada evolución y se le dio el alta de la unidad de cuidados intensivos.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Vena cava, superior]]></kwd>
<kwd lng="en"><![CDATA[incidental fndings]]></kwd>
<kwd lng="en"><![CDATA[heart defects, congenital]]></kwd>
<kwd lng="en"><![CDATA[echocardiography]]></kwd>
<kwd lng="en"><![CDATA[acute coronary syndrome]]></kwd>
<kwd lng="en"><![CDATA[percutaneous coronary intervention]]></kwd>
<kwd lng="en"><![CDATA[case reports]]></kwd>
<kwd lng="es"><![CDATA[vena cava superior]]></kwd>
<kwd lng="es"><![CDATA[hallazgos incidentales]]></kwd>
<kwd lng="es"><![CDATA[cardiopatías congénitas]]></kwd>
<kwd lng="es"><![CDATA[ecocardiografía]]></kwd>
<kwd lng="es"><![CDATA[síndrome coronario agudo]]></kwd>
<kwd lng="es"><![CDATA[intervención coronaria percutánea]]></kwd>
<kwd lng="es"><![CDATA[informes de casos]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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