<?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>0120-8705</journal-id>
<journal-title><![CDATA[CES Medicina]]></journal-title>
<abbrev-journal-title><![CDATA[CES Med.]]></abbrev-journal-title>
<issn>0120-8705</issn>
<publisher>
<publisher-name><![CDATA[Universidad CES]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-87052021000200156</article-id>
<article-id pub-id-type="doi">10.21615/cesmedicina.5672</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Síncope como manifestación clínica del bloqueo aurículo-ventricular paroxístico y respuesta al implante de marcapasos bicameral]]></article-title>
<article-title xml:lang="en"><![CDATA[Syncope as a clinical manifestation of paroxysmal atrioventricular block and response to bicameral pacemaker implantation]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Patiño]]></surname>
<given-names><![CDATA[Helber Gonzalo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Serna-Posada]]></surname>
<given-names><![CDATA[María del Mar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Duque-González]]></surname>
<given-names><![CDATA[Laura]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Uribe-Arango]]></surname>
<given-names><![CDATA[William]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Duque-Ramírez]]></surname>
<given-names><![CDATA[Mauricio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital General de Medellín  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad CES CES Cardiología ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad CES CES Cardiología ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad CES CES Cardiología ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2021</year>
</pub-date>
<volume>35</volume>
<numero>2</numero>
<fpage>156</fpage>
<lpage>164</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-87052021000200156&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-87052021000200156&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-87052021000200156&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El síncope es el principal síntoma que presentan los pacientes con bloqueo aurículo-ventricular completo paroxístico y puede obedecer a una serie de etiologías intrínsecas o extrínsecas. Los bloqueos son causa de disfunción importante, con alta carga de morbilidad, incluso en pacientes sin cardiopatía isquémica o anomalía estructural de base. Se presenta el caso de una paciente con corazón estructuralmente normal, quien ingresó para estudio de síncope y durante el monitoreo Holter de 24 horas se documentó bloqueo aurículo-ventricular completo paroxístico, por lo cual se procedió al implante de un marcapasos bicameral, con muy buena respuesta a la intervención. Los bloqueos aurículo-ventricular completos pueden ser paroxísticos o permanentes y la única forma de diferenciarlos son los hallazgos electrocardiográficos. Es muy importante realizar el diagnóstico de bloqueo aurículo-ventricular completo, bien sea paroxístico o definitivo, porque el único tratamiento es el implante de un dispositivo de estimulación eléctrica cardíaca.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Syncope is the main symptom presented by patients with paroxysmal complete atrioventricular block, and it may be due to several intrinsic or extrinsic etiologies. AV blocks are a major cause of dysfunction, with a high burden of disease, even in patients without ischemic heart disease or underlying structural abnormality. The case of a patient with a structurally normal heart is presented, who was admitted for a syncope study and during a 24-hour Holter monitoring, a paroxysmal complete AV block was documented, which led to the implantation of a bicameral pacemaker and had a very good response to the procedure. Complete AV blocks can be paroxysmal or permanent, and the only way to differentiate them is by electrocardiographic findings. It is very important to make the diagnosis of complete AV block, either paroxysmal or permanent, because the only treatment is the implantation of a cardiovascular implantable electronic device.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Bloqueo Aurículo-ventricular]]></kwd>
<kwd lng="es"><![CDATA[Electrocardiograma]]></kwd>
<kwd lng="es"><![CDATA[Marcapasos]]></kwd>
<kwd lng="es"><![CDATA[Síncope.]]></kwd>
<kwd lng="en"><![CDATA[Atrioventricular block]]></kwd>
<kwd lng="en"><![CDATA[Electrocardiography]]></kwd>
<kwd lng="en"><![CDATA[Pacemaker]]></kwd>
<kwd lng="en"><![CDATA[Syncope.]]></kwd>
</kwd-group>
</article-meta>
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