<?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>1729-519X</journal-id>
<journal-title><![CDATA[Revista Habanera de Ciencias Médicas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev haban cienc méd]]></abbrev-journal-title>
<issn>1729-519X</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Ciencias Médicas de la Habana]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1729-519X2021000200007</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Endocarditis infecciosa con hemocultivos negativos en prolapso de la válvula mitral. Presentación de caso]]></article-title>
<article-title xml:lang="en"><![CDATA[Infective endocarditis with negative blood cultures in mitral valve prolapse. Case presentation]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carrero Vázquez]]></surname>
<given-names><![CDATA[Annia María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez Rivera]]></surname>
<given-names><![CDATA[Taimara]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Serra Valdes]]></surname>
<given-names><![CDATA[Miguel Ángel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital General Docente &#8220;Dr. Enrique Cabrera&#8221;  ]]></institution>
<addr-line><![CDATA[La Habana ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Ciencias Médicas de La Habana  ]]></institution>
<addr-line><![CDATA[La Habana ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2021</year>
</pub-date>
<volume>20</volume>
<numero>2</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1729-519X2021000200007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1729-519X2021000200007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1729-519X2021000200007&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción:  La Endocarditis infecciosa sigue desafiando a la Medicina moderna a pesar de no ser una entidad frecuente.  Objetivo:  Se presenta un caso con una lesión valvular previa no diagnosticada antes, y sin síntomas, y que se consideró el diagnóstico tempranamente de endocarditis en el nivel hospitalario.  Presentación del caso:  Paciente de 20 años, mujer, con antecedentes de salud referidos, fumadora. Ingresa en sala del Servicio de Medicina el 21 de enero de 2020 por fiebres que se mantienen todo el día de 38-38,50 C, con picos que alcanzan los 400 C con escalofríos en determinados momentos. Desde hace un mes presenta esta sintomatología. Ruidos cardiacos rítmicos, taquicárdicos, de buena intensidad. Clic sistólico con arrastre sistólico fuerte de regurgitación IV/VI audible en foco mitral con frémito que se irradia a la axila, anemia, VSG acelerada, leucocitosis con desviación izquierda, hemocultivos negativos y en ecocardiograma prolapso de válvula mitral, valva anterior y posterior, con regurgitación que ocupa toda la aurícula izquierda hasta el techo de la misma. Múltiples vegetaciones en cara auricular de valva posterior de válvula mitral, la mayor de 7 x 3 mm.  Conclusiones:  El método clínico es fundamental en el proceso diagnóstico en la práctica clínica secundado por los medios diagnósticos como en la enfermedad que nos ocupa.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction:  Infective endocarditis continues to be a great challenge for modern medicine although it is not a frequent entity.  Objective:  We present a case of an undiagnosed previous valve lesion without symptoms. The early diagnosis of endocarditis was made at the hospital level.  Case Presentation:  A 20-year-old woman, smoker, with previous history of good health was admitted to the medical ward on January 21, 2020. The patient reported continuous fever (38-38,50 C) throughout the day, with spikes up to 400 C and intermittent chills. She has been having these symptoms for a month. Rhythmic heart sounds and high intensity tachycardia and systolic click with strong systolic displacement of regurgitation grade IV/VI audible in mitral area with fremitus radiating to the armpit were heard. Anemia, accelerated ESR, leukocytosis with left deviation, and negative blood cultures were confirmed. The echocardiogram showed a mitral valve prolapse with regurgitation of anterior and posterior valves that occupies all the left atrium until its top. There was multiple vegetation in the atrial side of the posterior leaflet of the mitral valve; the greatest is 7 x 3 mm.  Conclusions:  The clinical method is essential in the diagnostic process performed in clinical practice supported by diagnostic means, as in the current case.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Endocarditis infecciosa]]></kwd>
<kwd lng="es"><![CDATA[hemocultivos]]></kwd>
<kwd lng="es"><![CDATA[prolapso de la válvula mitral]]></kwd>
<kwd lng="es"><![CDATA[ecocardiograma]]></kwd>
<kwd lng="en"><![CDATA[Infective endocarditis]]></kwd>
<kwd lng="en"><![CDATA[blood culture]]></kwd>
<kwd lng="en"><![CDATA[mitral valve prolapse]]></kwd>
<kwd lng="en"><![CDATA[echocardiogram]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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