<?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>0188-2198</journal-id>
<journal-title><![CDATA[Revista mexicana de cardiología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Mex. Cardiol]]></abbrev-journal-title>
<issn>0188-2198</issn>
<publisher>
<publisher-name><![CDATA[Asociación Nacional de Cardiólogos de México, Sociedad de Cardiología Intervencionista de México]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0188-21982016000300123</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Takotsubo syndrome associated with myasthenic crisis. A case report]]></article-title>
<article-title xml:lang="es"><![CDATA[Síndrome de takotsubo asociado a crisis miasténica. Presentación de un caso]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Escutia Cuevas]]></surname>
<given-names><![CDATA[Héctor Hugo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Domínguez López]]></surname>
<given-names><![CDATA[Roberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Padilla Trejo]]></surname>
<given-names><![CDATA[Benjamín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vargas Ramón]]></surname>
<given-names><![CDATA[Rosa Rebeca]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Montes Isunza]]></surname>
<given-names><![CDATA[Héctor Emilio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez Brito]]></surname>
<given-names><![CDATA[Myrlene]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,ISSSTE Centro Médico Nacional 20 de Noviembre División de Cardiología]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Centro de Alta Especialidad "Dr. Rafael Lucio"  ]]></institution>
<addr-line><![CDATA[Xalapa Veracruz]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Centro de Alta Especialidad "Dr. Rafael Lucio"  ]]></institution>
<addr-line><![CDATA[Xalapa Veracruz]]></addr-line>
<country>México</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Centro de Alta Especialidad "Dr. Rafael Lucio"  ]]></institution>
<addr-line><![CDATA[Xalapa Veracruz]]></addr-line>
<country>México</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Instituto Nacional de Cardiología "Ignacio Chávez"  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2016</year>
</pub-date>
<volume>27</volume>
<numero>3</numero>
<fpage>123</fpage>
<lpage>129</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-21982016000300123&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-21982016000300123&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-21982016000300123&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Introduction:  The takotsubo syndrome is a rare clinical entity commonly associated with elderly women (ratio 6:1), easily confused with an acute ischemic syndrome, strangely associated with a myasthenic crisis. It is characterized with chest pain, elevated biomarkers, ST segment elevation, absence of coronary flow obstruction, and a characteristic deformity (anteroapical dyskinesia) of the left ventricle; these changes associated with a stressor.  Case report:  A woman of 69 years, diagnosed with myasthenia gravis six years ago, who entered in the intensive care unit with a suspected diagnosis of acute coronary syndrome and respiratory failure which required mechanical ventilation. Coronary angiography discarded a coronary disease. Ventriculography revealed a systolic anteroapical deformation. Treatment was initiated with acetylcholinesterase inhibitors and plasmapheresis with partial response, it required the use of vasoactive amines, with a suitable progressive cardiovascular and neurological outcome, with echocardiographic resolution.  Conclusions:  The takotsubo syndrome can be associated with myasthenia gravis and myasthenic crisis. The prognosis depends on early diagnosis, appropriate differential diagnosis, immediate treatment of myasthenic crisis, and management of the hemodynamic consequences of the takotsubo syndrome.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Introducción:  El síndrome de takotsubo es una entidad clínica poco frecuente asociada comúnmente con las mujeres de edad avanzada (relación 6:1), puede fácilmente confundirse con un síndrome isquémico agudo, extrañamente asociado con una crisis miasténica. Se caracteriza por dolor torácico, biomarcadores elevados, elevación del segmento ST, ausencia de obstrucción del flujo coronario, y una deformidad característica (discinesia anteroapical) del ventrículo izquierdo; estos cambios asociados con un factor de estrés.  Caso clínico:  Una mujer de 69 años, con diagnóstico de miastenia gravis hace seis años, que ingresó en la Unidad de Cuidados Intensivos con un diagnóstico de sospecha de síndrome coronario agudo e insuficiencia respiratoria que requirió de ventilación mecánica. La angiografía descartó una enfermedad coronaria. La ventriculografía reveló una deformación anteroapical sistólica. Se inició el tratamiento con inhibidores de la acetilcolinesterasa y plasmaféresis con respuesta parcial, se requirió el uso de aminas vasoactivas, con un resultado progresivo cardiovascular y neurológico adecuado, con resolución ecocardiográfica.  Conclusiones:  El síndrome de takotsubo puede estar asociada con miastenia gravis y la crisis miasténica. El pronóstico depende del diagnóstico precoz, el diagnóstico diferencial adecuado, el tratamiento inmediato de la crisis miasténica, y la gestión de las consecuencias hemodinámicas del síndrome takotsubo.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Myasthenia gravis]]></kwd>
<kwd lng="en"><![CDATA[myastenic crisis]]></kwd>
<kwd lng="en"><![CDATA[takotsubo]]></kwd>
<kwd lng="en"><![CDATA[cardiomyopathy]]></kwd>
<kwd lng="en"><![CDATA[broken heart]]></kwd>
<kwd lng="es"><![CDATA[Miastenia grave]]></kwd>
<kwd lng="es"><![CDATA[crisis miasténica]]></kwd>
<kwd lng="es"><![CDATA[takotsubo]]></kwd>
<kwd lng="es"><![CDATA[cardiomiopatía]]></kwd>
<kwd lng="es"><![CDATA[corazón roto]]></kwd>
</kwd-group>
</article-meta>
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