<?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>0120-2448</journal-id>
<journal-title><![CDATA[Acta Medica Colombiana]]></journal-title>
<abbrev-journal-title><![CDATA[Acta Med Colomb]]></abbrev-journal-title>
<issn>0120-2448</issn>
<publisher>
<publisher-name><![CDATA[Asociacion Colombiana de Medicina Interna]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-24482009000100007</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Enfermedad aneurismática coronaria: Presentación de caso clínico y revisión de la literatura]]></article-title>
<article-title xml:lang="en"><![CDATA[Aneurysmatic coronary artery disease: Presentation of a case and review the literature]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bohórquez]]></surname>
<given-names><![CDATA[Ricardo]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Roa]]></surname>
<given-names><![CDATA[Nubia Lucía]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Plata]]></surname>
<given-names><![CDATA[Carlos Andrés]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Guerrero]]></surname>
<given-names><![CDATA[Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Márquez]]></surname>
<given-names><![CDATA[Arturo]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Urina]]></surname>
<given-names><![CDATA[Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[Ángel]]></given-names>
</name>
<xref ref-type="aff" rid="A03"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez]]></surname>
<given-names><![CDATA[Jaime]]></given-names>
</name>
<xref ref-type="aff" rid="A03"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Urrea]]></surname>
<given-names><![CDATA[Juan Karlo]]></given-names>
</name>
<xref ref-type="aff" rid="A03"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Herrera]]></surname>
<given-names><![CDATA[Dimas Felipe]]></given-names>
</name>
<xref ref-type="aff" rid="A04"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rojas]]></surname>
<given-names><![CDATA[Luis]]></given-names>
</name>
<xref ref-type="aff" rid="A04"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mariño]]></surname>
<given-names><![CDATA[Rocío del Pilar]]></given-names>
</name>
<xref ref-type="aff" rid="A05"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fajardo]]></surname>
<given-names><![CDATA[Angélica]]></given-names>
</name>
<xref ref-type="aff" rid="A04"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Heilbron]]></surname>
<given-names><![CDATA[Óscar]]></given-names>
</name>
<xref ref-type="aff" rid="A06"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Pontificia Universidad Javeriana Departamento de Medicina Interna ]]></institution>
<addr-line><![CDATA[Bogotá D.C.]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Pontificia Universidad Javeriana  ]]></institution>
<addr-line><![CDATA[Bogotá D.C.]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="A03">
<institution><![CDATA[,Pontificia Universidad Javeriana  ]]></institution>
<addr-line><![CDATA[Bogotá D.C.]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="A04">
<institution><![CDATA[,Pontificia Universidad Javeriana  ]]></institution>
<addr-line><![CDATA[Bogotá D.C.]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="A05">
<institution><![CDATA[,Pontificia Universidad Javeriana  ]]></institution>
<addr-line><![CDATA[Bogotá D.C.]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="A06">
<institution><![CDATA[,Pontificia Universidad Javeriana  ]]></institution>
<addr-line><![CDATA[Bogotá D.C.]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2009</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2009</year>
</pub-date>
<volume>34</volume>
<numero>1</numero>
<fpage>38</fpage>
<lpage>41</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-24482009000100007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-24482009000100007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-24482009000100007&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[La enfermedad aneurismática coronaria o ectasias y dilataciones de segmentos coronarios, son hallazgos típicamente incidentales en los estudios angiográficos. Aunque no está claramente establecida la etiología, muchas series describen como factor más común la aterosclerosis coronaria, pero también un desorden congénito, secundario a inflamación o enfermedad del tejido conectivo. Es bien estudiada su asociación con enfermedad de Kawasaki. Se revisa el caso de un paciente con síndrome coronario agudo (SCA) y dilataciones aneurismáticas en arterias coronarias, su enfoque diagnóstico y terapéutico.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Coronary artery aneurysms or ectasias are dilatations of arterial segments, which are typically incidentally identified at angiography. Although the etiology isn´t clearly established, several large clinical series described that the most common etiologic factor for coronary aneurysms is atherosclerotic coronary artery disease, but they can also be congenital or secondary to inflammatory or connective tissue disorders. A well-known association with Kawasaki disease is also studied. We review the case of a patient with acute coronary syndrome (ACS) and aneurysms dilations in coronary arteries, its diagnosis and therapeutic approach.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[ateroesclerosis]]></kwd>
<kwd lng="es"><![CDATA[aneurismas coronarios]]></kwd>
<kwd lng="es"><![CDATA[síndrome coronario agudo]]></kwd>
<kwd lng="es"><![CDATA[ectasia coronaria]]></kwd>
<kwd lng="en"><![CDATA[atherosclerosis]]></kwd>
<kwd lng="en"><![CDATA[coronary aneurysms]]></kwd>
<kwd lng="en"><![CDATA[acute coronary syndrome]]></kwd>
<kwd lng="en"><![CDATA[coronary ectasia]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[  <font size="2" face="Verdana">      <p>       <center>     <font size="4"><b>Enfermedad aneurism&aacute;tica coronaria     <br>     Presentaci&oacute;n de caso cl&iacute;nico y revisi&oacute;n de la literatura      </b> </font>   </center> </p>     <p>       <center>     <font size="3"><b>Aneurysmatic coronary artery disease     <br>     Presentation of a case and review the literature</b></font>   </center> </p>     <p>       <center>     Ricardo Boh&oacute;rquez<sup>(1)</sup>, Nubia Luc&iacute;a Roa<sup>(2)</sup>,      Carlos Andr&eacute;s Plata<sup>(2)</sup>, Fernando Guerrero<sup>(2)</sup>,      Arturo M&aacute;rquez<sup>(2)</sup>, Manuel Urina<sup>(1)</sup>, &Aacute;ngel      Garc&iacute;a<sup>(3)</sup>, Jaime Rodr&iacute;guez<sup>(3)</sup>, Juan Karlo      Urrea<sup>(3)</sup>, Dimas Felipe Herrera<sup>(4)</sup>, Luis Rojas<sup>(4)</sup>,      Roc&iacute;o del Pilar Mari&ntilde;o<sup>(4)</sup>, Ang&eacute;lica Fajardo<sup>(5)</sup>,      &Oacute;scar Heilbron<sup>(6)</sup>    </center> </p>     <p><sup>(1)</sup> Cardi&oacute;logo, Director del Departamento    de Medicina Interna. Pontificia Universidad Javeriana, Hospital San Ignacio,    Bogot&aacute;, D.C., Colombia.    ]]></body>
<body><![CDATA[<br>   <sup>(2)</sup> Cardi&oacute;logo Hemodinamista. Pontificia    Universidad Javeriana, Hospital San Ignacio, Bogot&aacute;, D.C., Colombia.    <br>   <sup>(3)</sup>    Fellow Cardiolog&iacute;a. Pontificia Universidad Javeriana, Hospital San Ignacio,    Bogot&aacute;, D.C., Colombia.    <br>   <sup>(4)</sup>    Residentes de Medicina Interna. Pontificia Universidad Javeriana, Hospital San    Ignacio, Bogot&aacute;, D.C., Colombia.    <br>   <sup>(5)</sup> Residente de Anestesiolog&iacute;a. Pontificia Universidad Javeriana,    Hospital San Ignacio, Bogot&aacute;, D.C., Colombia.     <br>   <sup>(6)</sup> Fellow Cirug&iacute;a Cardiovascular. Pontificia Universidad    Javeriana, Hospital San Ignacio, Bogot&aacute;, D.C., Colombia.</p>     <p><b>Correspondencia</b>: Cra 7 No 40-62. Bogot&aacute; D.C. Colombia. Unidad    de Cardiolog&iacute;a. E-mail: <a href="mailto:ricardob@javeriana.edu.co">ricardob@javeriana.edu.co</a></p>     <p>Recibido: 5/II/09 Aceptado: 11/III/09</p> <hr size="1">     <p><font size="3"><b>Resumen</b></font> </p>     <p>La enfermedad aneurism&aacute;tica coronaria o ectasias y dilataciones de segmentos    coronarios, son hallazgos t&iacute;picamente incidentales en los estudios angiogr&aacute;ficos.    Aunque no est&aacute; claramente establecida la etiolog&iacute;a, muchas series    describen como factor m&aacute;s com&uacute;n la aterosclerosis coronaria, pero    tambi&eacute;n un desorden cong&eacute;nito, secundario a inflamaci&oacute;n    o enfermedad del tejido conectivo. Es bien estudiada su asociaci&oacute;n con    enfermedad de Kawasaki. Se revisa el caso de un paciente con s&iacute;ndrome    coronario agudo (SCA) y dilataciones aneurism&aacute;ticas en arterias coronarias,    su enfoque diagn&oacute;stico y terap&eacute;utico.</p>     <p>Palabras claves: ateroesclerosis, aneurismas coronarios, s&iacute;ndrome coronario    agudo, ectasia coronaria.</p> <hr size="1">     ]]></body>
<body><![CDATA[<p><font size="3"><b>Abstract</b></font></p>     <p>Coronary artery aneurysms or ectasias are dilatations of arterial segments,    which are typically incidentally identified at angiography. Although the etiology    isn&acute;t clearly established, several large clinical series described that    the most common etiologic factor for coronary aneurysms is atherosclerotic coronary    artery disease, but they can also be congenital or secondary to inflammatory    or connective tissue disorders. A well-known association with Kawasaki disease    is also studied. We review the case of a patient with acute coronary syndrome    (ACS) and aneurysms dilations in coronary arteries, its diagnosis and therapeutic    approach.</p>     <p>Keywords: atherosclerosis, coronary aneurysms, acute coronary syndrome, coronary    ectasia.</p> <hr size="1">     <p><font size="3"><b>Descripci&oacute;n del caso </b></font></p>     <p>Paciente masculino de 60 a&ntilde;os de edad quien ingresa con cuadro de una    hora de evoluci&oacute;n consistente en dolor tor&aacute;cico de caracter&iacute;sticas    t&iacute;picas, asociado a s&iacute;ntomas disauton&oacute;micos y de inicio    en reposo. </p>     <p>Antecedentes de importancia: hipertensi&oacute;n arterial aproximadamente 20    a&ntilde;os (sin estudios previos), en manejo con enalapril 20 mg cada 12 horas,    obesidad grado I, sin otros antecedentes relevantes. Previamente en Clase Funcional    I, sin angina, sin disnea parox&iacute;stica nocturna ni edemas en miembros    inferiores o claudicaci&oacute;n. Al examen f&iacute;sico de ingreso como datos    positivos: tensi&oacute;n arterial 140/80 mmHg, frecuencia cardiaca 80 lat/min,    frecuencia respiratoria 20 resp/min, peso 89.2 kg, talla: 170 cm, IMC: 30,8.    Sin soplos carot&iacute;deos, sin ingurgitaci&oacute;n yugular, auscultaci&oacute;n    cardiopulmonar sin presencia de sobreagregados, sin soplos, sin frote o presencia    de S3, sin edemas en extremidades inferiores, pulsos perif&eacute;ricos sim&eacute;tricos.    Se considera cuadro altamente sugestivo de s&iacute;ndrome coronario agudo,    se inicia estudio y manejo, encontrando EKG en ritmo sinusal, necrosis antigua    en la pared inferior, sin cambios en el segmento ST u onda T y con elevaci&oacute;n    de biomarcadores de necrosis mioc&aacute;rdica (troponina T elevada), se hace    diagn&oacute;stico de infarto agudo de miocardio sin elevaci&oacute;n del segmento    ST (IAMSSST) con puntaje TIMI (thrombolysis in myocardial infarction) 1 (1),    se inicia manejo antiisqu&eacute;mico y antitromb&oacute;tico, traslado a unidad    de cuidado intensivo donde evoluciona de forma satisfactoria y posteriormente    es remitido a la sala general. Dentro de su estratificaci&oacute;n de riesgo    y estudios intrahospitalarios se realiza ecocardiograma transtor&aacute;cico    que muestra: acinesia de los cuatro segmentos apicales, s&eacute;ptum anterior    mesial y basal, hipocinesia moderada del resto de segmentos y fracci&oacute;n    de eyecci&oacute;n (FE) de 25%. Con estos hallazgos es llevado a estudio angiogr&aacute;fico    (Figuras <a href="#figura1">1</a>,<a href="#figura2">2</a> y <a href="#figura3">3</a>):    arterias coronarias epic&aacute;rdicas aneurism&aacute;ticas, con flujo lento    sin obstrucciones angiogr&aacute;ficas significativas. Se considera continuar    manejo completo con betabloqueadores, inhibidores ECA, bloqueador del receptor    de aldosterona y antiagregaci&oacute;n (ASA) m&aacute;s anticoagulaci&oacute;n    cr&oacute;nica con warfarina. Contin&uacute;a manejo ambulatorio y rehabilitaci&oacute;n    cardiaca.</p>     <p>    <center>     <a name="figura1" id="figura1"></a>    <br>     <img src="img/revistas/amc/v34n1/a7f1.jpg" border="0">    </center></p>     <p>    ]]></body>
<body><![CDATA[<center>     <a name="figura2" id="figura2"></a>    <br>     <img src="img/revistas/amc/v34n1/a7f2.jpg" border="0">    </center></p>     <p>    <center>     <a name="figura3" id="figura3"></a>    <br>     <img src="img/revistas/amc/v34n1/a7f3.jpg" border="0">    </center></p>     <p><font size="3"><b>Revisi&oacute;n</b></font> </p>     <p>La enfermedad aneurism&aacute;tica coronaria (EAC) se define como la presencia    de dilataciones localizadas o difusas del lumen coronario y que excede en 1,5    veces el di&aacute;metro de las arterias adyacentes (2, 4, 14, 15), es una patolog&iacute;a    de prevalencia baja con &iacute;ndices de 0.2% a 10% en diferentes series de    estudios angiogr&aacute;ficos (2-9, 11-14) y observada con mayor frecuencia    en hombres (7). </p>     <p>Las primeras referencias acerca de la enfermedad son atribuidas a Morgagni    en estudios anatomopatol&oacute;gicos de 1761 (17) y posteriormente por Bougon    en 1812 (15), desde entonces se han realizado m&uacute;ltiples avances sobre    la fisiopatolog&iacute;a de las dilataciones a nivel coronario, sin embargo    el mecanismo no ha sido dilucidado por completo (2, 4, 6, 9, 12, 13). </p>     <p>Por las grandes similitudes histopatol&oacute;gicas con la ateroesclerosis    se considera una variedad de la enfermedad arterial coronaria ateroscler&oacute;tica    (2, 15), en la cual hay degradaci&oacute;n del col&aacute;geno y de las fibras    de elastina con disrupci&oacute;n de la l&aacute;mina el&aacute;stica interna    y externa (2). </p>     <p>Otra hip&oacute;tesis menciona la disfunci&oacute;n de la pared endotelial    secundaria a p&eacute;rdida de sus componentes musculoel&aacute;sticos y dep&oacute;sitos    de c&eacute;lulas grasas; se postula tambi&eacute;n que la EAC es el resultado    de la remodelaci&oacute;n arterial en respuesta al crecimiento de la placa local    (2); otra hip&oacute;tesis menciona la sobreexpresi&oacute;n del sistema de    las metaloproteinasas (2, 3) las cuales producen prote&oacute;lisis de las prote&iacute;nas    de la matriz extracelular que conduce a la remodelaci&oacute;n arterial, y factores    que permiten esta sobreexpresi&oacute;n: lipoprote&iacute;nas, prote&iacute;na    C reactiva (PCR), factor de crecimiento del endotelio vascular, leucotrienos,    sistema renina angiotensina, homociste&iacute;na y ox&iacute;do n&iacute;trico.    Los pacientes con EAC tienen altos niveles de IL-6 lo cual podr&iacute;a orientar    hacia un proceso inflamatorio dentro de su fisiopatolog&iacute;a (7, 18). </p>     ]]></body>
<body><![CDATA[<p>La principal causa de EAC en el mundo occidental es la ateroesclerosis, (5,    11, 13), mientras que en pa&iacute;ses orientales la enfermedad de Kawasaki    ocupa el primer lugar (5), adicionalmente puede hacer parte de m&uacute;ltiples    entidades (<a href="#tabla1">Tabla 1</a>).</p>     <p>    <center>     <a name="tabla1" id="tabla1"></a>    <br>     <img src="img/revistas/amc/v34n1/a7t1.gif" border="0">    </center></p>     <p><font size="3"><b>Clasificaci&oacute;n </b></font></p>     <p>La clasificaci&oacute;n de la enfermedad aneurism&aacute;tica se puede realizar    teniendo en cuenta varias caracter&iacute;sticas de la lesi&oacute;n, seg&uacute;n    el di&aacute;metro de la luz, la forma y localizaci&oacute;n de la dilataci&oacute;n    (<a href="#tabla2">Tabla 2</a>).</p>     <p>    <center>     <a name="tabla2" id="tabla2"></a>    <br>     <img src="img/revistas/amc/v34n1/a7t2.gif" border="0">    </center></p>     <p><font size="3"><b>Manifestaciones cl&iacute;nicas </b></font></p>     ]]></body>
<body><![CDATA[<p>La presentaci&oacute;n cl&iacute;nica de la enfermedad aneurism&aacute;tica    comprende desde la ausencia completa de s&iacute;ntomas, hasta el s&iacute;ndrome    coronario agudo, incluyendo presentaciones at&iacute;picas de dolor tor&aacute;cico;    esta variedad de manifestaciones cl&iacute;nicas depende de la extensi&oacute;n    y severidad de la enfermedad (2), adem&aacute;s la ectasia coronaria predispone    en mayor grado al espasmo, isquemia inducida por el ejercicio, trombosis, disecci&oacute;n    o ruptura (3, 6, 9).</p>     <p><font size="3"><b>Diagn&oacute;stico</b></font> </p>     <p>Com&uacute;nmente la EAC es un hallazgo incidental de la angiograf&iacute;a    coronaria (6); sin embargo, es considerado el est&aacute;ndar de oro para el    diagn&oacute;stico (2); se ha demostrado en diferentes series que la arteria    m&aacute;s afectada en la EAC es la coronaria derecha y en menor grado la coronaria    izquierda (7, 14); el ultrasonido intravascular es otra t&eacute;cnica que al    igual que la angiograf&iacute;a tiene alta sensibilidad para el diagn&oacute;stico,    sin embargo son t&eacute;cnicas diagn&oacute;sticas invasivas. Dentro de las    modalidades no invasivas se encuentran la tomograf&iacute;a, la resonancia magn&eacute;tica    (RMN) y el ecocardiograma transtor&aacute;cico.</p>     <p><font size="3"><b>Tratamiento</b></font> </p>     <p>El &iacute;mpetu para manejar esta entidad se centra en las complicaciones    asociadas con estas lesiones; las m&aacute;s comunes incluyen angina, infarto    de miocardio y muerte s&uacute;bita. Otros eventos adversos incluyen trombosis,    tromboembolismo, formaci&oacute;n de f&iacute;stula arteriovenosa, vasoespasmo    y ruptura (20). Estas complicaciones que en parte pueden ser asociadas al flujo    turbulento en los aneurismas, tambi&eacute;n pueden tener relaci&oacute;n con    enfermedad ateroesclerosa subyacente. </p>     <p>Se ha postulado que estos pacientes con angina experimentan un empeoramiento    parad&oacute;jico de la isquemia, despu&eacute;s del uso de nitratos, probablemente    por mecanismo de robo coronario en la entidad descrita como &#8220;coronariopat&iacute;a    dilatada&#8221; (19). El uso de medicamentos que disminuyen la agregaci&oacute;n    plaquetaria como aspirina y/o clopidogrel (4, 15) se basa en las recomendaciones    descritas para su utilizaci&oacute;n (despu&eacute;s de s&iacute;ndrome coronario    agudo, intervencionismo, prevenci&oacute;n primaria o secundaria). Sin embargo,    cuando el diagn&oacute;stico es incidental (angiograf&iacute;a previa a intervenci&oacute;n    cardiaca), con un curso asintom&aacute;tico de la enfermedad, se recomienda    antiagregaci&oacute;n simple (con aspirina o en caso de alergia, con clopidogrel)    (14, 15). </p>     <p>Por otro lado, la presencia de aneurismosis coronaria sintom&aacute;tica (angina    inestable o infarto de miocardio), recomienda el uso terapia dual con aspirina    m&aacute;s clopidogrel por el tiempo recomendado para cada gu&iacute;a (un a&ntilde;o    posintervencionismo con stent) (21); sin embargo, la asociaci&oacute;n con anticoagulaci&oacute;n    se basa en reportes de casos o an&aacute;lisis de subgrupos, y no hay estudios    que avalen su uso (14, 15, 20). A manera de recomendaci&oacute;n de expertos,    se considera que la terapia dual est&aacute; indicada durante el tiempo que    tiene aval en los estudios, es decir, un a&ntilde;o poss&iacute;ndrome coronario    agudo sin elevaci&oacute;n del ST y un a&ntilde;o despu&eacute;s de intervenci&oacute;n    percut&aacute;nea con stent. El uso de warfarina como terapia triple se reserva    para los casos donde hay bajo riesgo hemorr&aacute;gico, continuando despu&eacute;s    de suspender el clopidogrel, con ASA m&aacute;s warfarina por tiempo no definido    (21) </p>     <p>En los casos posinfarto con elevaci&oacute;n del ST trombolizados y que no    son intervenidos con stent, se recomienda terapia dual por 15 d&iacute;as y    posteriormente aspirina m&aacute;s warfarina indefinido (21). Como se dijo anteriormente,    estas recomendaciones se deben individualizar a cada paciente. El asociar al    manejo, betabloqueadores y/o antic&aacute;lcicos(4) que disminuyan velocidad    del flujo arterial, es individual para cada caso y sobre esto no hay una recomendaci&oacute;n    espec&iacute;fica que avale o contraindique su uso. En estatinas, que proporcionan    estabilidad de la placa ateroescler&oacute;tica, nuevamente se reserva para    cada caso seg&uacute;n la indicaci&oacute;n. </p>     <p>Para pacientes con lesiones obstructivas coexistentes y s&iacute;ntomas o signos    de isquemia significativa a pesar de la terapia m&eacute;dica, la revascularizaci&oacute;n    coronaria percut&aacute;nea o quir&uacute;rgica puede, de manera segura y efectiva,    restaurar la perfusi&oacute;n mioc&aacute;rdica normal (7); adem&aacute;s se    puede considerar tambi&eacute;n la ligadura o resecci&oacute;n quir&uacute;rgica    y as&iacute; prevenir complicaciones (18).</p>     <p><font size="3"><b>Pron&oacute;stico</b></font> </p>     ]]></body>
<body><![CDATA[<p>El pron&oacute;stico de la EAC depende tanto del tama&ntilde;o del aneurisma    como de la presencia de enfermedad obstructiva coexistente (16). </p>     <p>La tasa de mortalidad de pacientes con EAC que recibieron tratamiento m&eacute;dico    fue del 13% a los 3 a&ntilde;os. (15)</p>     <p><font size="3"><b>Referencias</b></font> </p>     <!-- ref --><p>1. Antman EM, Cohen M, Bernink PJ, McCabe CH, Horacek T, Papuchis G, et al.    The TIMI risk score for unstable angina/non-ST elevation MI: A method for prognostication    and therapeutic decision making. JAMA 2000; 284: 835-42. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000066&pid=S0120-2448200900010000700001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p>2. Antoniadis AP, Chatzizisis YS, Giannoglou GD. 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