<?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>0120-5633</journal-id>
<journal-title><![CDATA[Revista Colombiana de Cardiología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Colomb. Cardiol.]]></abbrev-journal-title>
<issn>0120-5633</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Colombiana de Cardiologia. Oficina de Publicaciones]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-56332023000400207</article-id>
<article-id pub-id-type="doi">10.24875/rccar.21000103</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Bloqueo del fascículo posterior izquierdo y su relación con alteraciones de la válvula mitral: un hallazgo olvidado]]></article-title>
<article-title xml:lang="es"><![CDATA[Left posterior fascicular block and its relation to mitral valve abnormalities: a forgotten finding]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cáceres-Acosta]]></surname>
<given-names><![CDATA[Manuel F.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zapata-Uribe]]></surname>
<given-names><![CDATA[Pedro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Duarte-Suárez]]></surname>
<given-names><![CDATA[Néstor R.]]></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[,Universidad CES Facultad de Medicina Departamento de Cardiología]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad CES Facultad de Medicina ]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,CES Cardiología, Clínica CES Departamento de Ecocardiografía ]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad CES CES Cardiología, Clínica CES Departamento de Cardiología y Electrofisiología]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2023</year>
</pub-date>
<volume>30</volume>
<numero>4</numero>
<fpage>207</fpage>
<lpage>210</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-56332023000400207&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-56332023000400207&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-56332023000400207&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El bloqueo del fascículo posterior izquierdo es un hallazgo electrocardiográfico infrecuente. La fisiología de la conducción cardíaca ayuda a entender sus implicaciones clínicas. Si bien su relación con una valvulopatía mitral no está claramente establecida, es relevante y requiere estudios adicionales para detectar cardiopatía estructural.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Left posterior fascicular block is a rare electrocardiographic finding. The physiology of cardiac conduction helps to understand its clinical implications. Although not clearly established, its relationship with mitral valve disease is relevant and requires further studies to detect structural heart disease.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Electrocardiograma]]></kwd>
<kwd lng="es"><![CDATA[Hemibloqueo posteroinferior]]></kwd>
<kwd lng="es"><![CDATA[Prolapso mitral]]></kwd>
<kwd lng="en"><![CDATA[Electrocardiogram]]></kwd>
<kwd lng="en"><![CDATA[Left posterior fascicular block]]></kwd>
<kwd lng="en"><![CDATA[Mitral valve prolapse]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Elizari]]></surname>
<given-names><![CDATA[MV]]></given-names>
</name>
<name>
<surname><![CDATA[Acunzo]]></surname>
<given-names><![CDATA[RS]]></given-names>
</name>
<name>
<surname><![CDATA[Ferreiro]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Hemiblocks revisited]]></article-title>
<source><![CDATA[Circulation]]></source>
<year>2007</year>
<volume>115</volume>
<numero>9</numero>
<issue>9</issue>
<page-range>1154-63</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pérez-Riera]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Barros]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Raimundo]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Abreu]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Mendes]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Nikus]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Left posterior fascicular block, state-of-the-art review:A 2018 update]]></article-title>
<source><![CDATA[Indian Pacing and Electrophysiology Journal]]></source>
<year>2018</year>
<volume>18</volume>
<page-range>217-30</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Monin]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Bisconte]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Nicaise]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Hornez]]></surname>
<given-names><![CDATA[A-P]]></given-names>
</name>
<name>
<surname><![CDATA[Manen]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
<name>
<surname><![CDATA[Perrier]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Prevalence of intraventricular conduction disturbances in a large french population]]></article-title>
<source><![CDATA[Annals of Noninvasive Electrocardiology]]></source>
<year>2016</year>
<volume>21</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>479-85</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fisher]]></surname>
<given-names><![CDATA[JD]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Hemiblocks and the fascicular system:myths and implications]]></article-title>
<source><![CDATA[J Interv Card Electrophysiol]]></source>
<year>2018</year>
<volume>52</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>281-5</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rosenbaum]]></surname>
<given-names><![CDATA[MB]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Types of left bundle branch block and their clinical significance]]></article-title>
<source><![CDATA[Journal of Electrocardiology]]></source>
<year>1969</year>
<volume>2</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>197-206</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Elizari]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The normal variants in the left bundle branch system]]></article-title>
<source><![CDATA[Journal of Electrocardiology]]></source>
<year>2017</year>
<volume>50</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>389-99</page-range></nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Siles]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Schmidberg]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Acunzo]]></surname>
<given-names><![CDATA[RS]]></given-names>
</name>
<name>
<surname><![CDATA[Elizari]]></surname>
<given-names><![CDATA[MV]]></given-names>
</name>
<name>
<surname><![CDATA[Chiale]]></surname>
<given-names><![CDATA[PA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Diagnóstico electrocardiográfico de los bloqueos intraventriculares y auriculoventriculares]]></article-title>
<source><![CDATA[Electrocardiografía Básica]]></source>
<year>2015</year>
<volume>01</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>23-6</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Surawicz]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Childers]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Deal]]></surname>
<given-names><![CDATA[BJ]]></given-names>
</name>
<name>
<surname><![CDATA[Gettes]]></surname>
<given-names><![CDATA[LS]]></given-names>
</name>
<name>
<surname><![CDATA[Bailey]]></surname>
<given-names><![CDATA[JJ]]></given-names>
</name>
<name>
<surname><![CDATA[Gorgels]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[AHA/ACCF/HRS recommendations for the standardization and interpretation of the electrocardiogram:part III:intraventricular conduction disturbances:a scientific statement from the American Heart Association Electrocardiography and Arrhythmias Committee, Council on Clinical Cardiology;the American College of Cardiology Foundation;and the Heart Rhythm Society. Endorsed by the International Society for Computerized Electrocardiology]]></article-title>
<source><![CDATA[J Am Coll Cardiol]]></source>
<year>2009</year>
<volume>53</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>976-81</page-range></nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[J. Godat]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Gertsch]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Isolated left posterior fascicular block:A reliable marker for inferior myocardial infarction and associated severe coronary artery disease]]></article-title>
<source><![CDATA[Clin Cardiol]]></source>
<year>1993</year>
<volume>16</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>220-6</page-range></nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chandraratna]]></surname>
<given-names><![CDATA[PAN]]></given-names>
</name>
<name>
<surname><![CDATA[Ribas-Meneclier]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Littman]]></surname>
<given-names><![CDATA[BB]]></given-names>
</name>
<name>
<surname><![CDATA[Samet]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Conduction disturbances in patients with mitral valve prolapse]]></article-title>
<source><![CDATA[Journal of Electrocardiology]]></source>
<year>1977</year>
<volume>10</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>233-6</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
