<?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>S0120-87052023000200085</article-id>
<article-id pub-id-type="doi">10.21615/cesmedicina.6768</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Neumomediastino traumático secundario al efecto Macklin. Reporte de caso]]></article-title>
<article-title xml:lang="en"><![CDATA[Traumatic pneumomediastinum following Macklin effect. Case report]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Medina-Ortega]]></surname>
<given-names><![CDATA[Marco Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Valencia]]></surname>
<given-names><![CDATA[David]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Solano-Arboleda]]></surname>
<given-names><![CDATA[Nicolás]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cortés-Bolaños]]></surname>
<given-names><![CDATA[Giovanna]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad del Cauca  ]]></institution>
<addr-line><![CDATA[Popayán ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad del Cauca Centro de Estudios en Microbiología y Parasitología (CEMPA) ]]></institution>
<addr-line><![CDATA[Popayán ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad del Cauca Residente de Cirugía General IV año ]]></institution>
<addr-line><![CDATA[Popayán ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Hospital Universitario San José  ]]></institution>
<addr-line><![CDATA[Popayán ]]></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>37</volume>
<numero>2</numero>
<fpage>85</fpage>
<lpage>89</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-87052023000200085&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-87052023000200085&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-87052023000200085&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción:  el neumomediastino (NM) se define como la presencia de aire libre alrededor de las estructuras mediastínicas. Es un hallazgo radiológico poco frecuente y alarmante en el contexto del paciente politraumatizado y su adecuado estudio permite descartar lesiones potencialmente letales.  Métodos:  se presenta el caso de un paciente masculino de 43 años de edad, ingresado en el contexto de politraumatismo contundente. Al examen físico, se encontraba con enfisema subcutáneo y saturometría limítrofe, con hallazgo tomográfico de NM.  Resultados: se practicó esofagogastroduodenoscopia, que reportó normalidad y al examen físico no presentó aumento del enfisema subcutáneo en el seguimiento, catalogando el caso como secundario a efecto Macklin. Posteriormente, el paciente fue egresado en adecuadas condiciones y sin repercusión durante su estancia hospitalaria.  Conclusiones:  el NM es una entidad poco frecuente, pero alarmante, que obliga al conocimiento de sus causas y estudio de las mismas para descartar lesiones potencialmente letales.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction:  pneumomediastinum is defined as the presence of free air around mediastinal structures. It is a rare and alarming radiological finding in the context of polytraumatized patients and its adequate study allows the prevention of potentially lethal injuries.  Methods: the case of a 43-year-old male patient admitted in the context of blunt polytrauma is presented. On physical examination, he was found to have subcutaneous emphysema and borderline saturation, with a tomographic finding of pneumomediastinum.  Results:  esophagogastroduodenoscopy was performed, which was reported as normal and there was no increase in subcutaneous emphysema during follow-up, classifying the case as secondary to the Macklin effect. Subsequently, the patient was discharged in adequate conditions and without repercussions during his hospital stay.  Conclusions:  pneumomediastinum is a rare but alarming entity that requires knowledge of its causes and study of them in order to prevent potentially lethal lesions.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[neumomediastino]]></kwd>
<kwd lng="es"><![CDATA[efecto Macklin]]></kwd>
<kwd lng="es"><![CDATA[dolor torácico]]></kwd>
<kwd lng="es"><![CDATA[heridas y traumatismos]]></kwd>
<kwd lng="en"><![CDATA[pneumomediastinum]]></kwd>
<kwd lng="en"><![CDATA[Macklin effect]]></kwd>
<kwd lng="en"><![CDATA[chest pain]]></kwd>
<kwd lng="en"><![CDATA[wounds and injuries]]></kwd>
</kwd-group>
</article-meta>
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