<?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>0864-0300</journal-id>
<journal-title><![CDATA[Revista Cubana de Investigaciones Biomédicas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cubana Invest Bioméd]]></abbrev-journal-title>
<issn>0864-0300</issn>
<publisher>
<publisher-name><![CDATA[ECIMED]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0864-03002012000200006</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Revascularización coronaria incompleta y eventos cardíacos posteriores a intervencionismo coronario percutáneo]]></article-title>
<article-title xml:lang="en"><![CDATA[Incomplete coronary revascularization and cardiac events following percutaneous coronary]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Flores Sánchez]]></surname>
<given-names><![CDATA[Amaury]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Llerena Rojas]]></surname>
<given-names><![CDATA[Roberto Luis]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cabalé Vilariño]]></surname>
<given-names><![CDATA[María Beatriz]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
</contrib-group>
<aff id="A02">
<institution><![CDATA[,Universidad de La Habana  ]]></institution>
<addr-line><![CDATA[La Habana ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="A01">
<institution><![CDATA[,Instituto de Cardiología y Cirugía Cardiovascular  ]]></institution>
<addr-line><![CDATA[La Habana ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2012</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2012</year>
</pub-date>
<volume>31</volume>
<numero>2</numero>
<fpage>0</fpage>
<lpage>0</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0864-03002012000200006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0864-03002012000200006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0864-03002012000200006&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[No hay datos concluyentes para evaluar la ventaja de la revascularización coronaria completa en el intervencionismo coronario percutáneo. Objetivo general: determinar si la revascularización incompleta se asocia con la incidencia de eventos cardíacos posteriores al intervencionismo coronario percutáneo. Métodos: se realizó una investigación observacional prospectiva con 192 pacientes con enfermedad coronaria multivaso, sin antecedentes de revascularización coronaria, tratados mediante intervencionismo coronario percutáneo con implantes de stents en el Instituto de Cardiología desde el 1 de enero del 2003 hasta el 31 de diciembre del 2005. Análisis estadístico: para determinar la asociación de la revascularización incompleta con eventos cardíacos se calculó el riesgo relativo. Resultados: al analizar la asociación de la revascularización incompleta con los eventos clínicos y los procederes cardíacos posteriores al intervencionismo coronario percutáneo, no se obtuvo relación alguna. Conclusiones: la revascularización coronaria incompleta no se asocia con mayor incidencia de eventos cardíacos posteriores a un intervencionismo coronario percutáneo con implantes de stents convencionales.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[No conclusive data are available to evaluate the advantages of complete coronary revascularization in percutaneous coronary intervention. General objective: Determine whether incomplete revascularization is associated with the incidence of cardiac events following percutaneous coronary intervention. Methods: A prospective observational study was conducted with 192 patients with multivessel coronary disease and no history of coronary revascularization, treated by percutaneous coronary intervention with stent implantation at the Institute of Cardiology from 1 January 2003 to 31 December 2005. Statistical analysis: Relative risk was estimated to determine the association of incomplete revascularization with cardiac events. Results: On analyzing the association of incomplete revascularization with clinical events and cardiac procedures following percutaneous coronary intervention, no relation was obtained. Conclusions: Incomplete coronary revascularization is not associated with a higher incidence of cardiac events following percutaneous coronary intervention with conventional stent implantation.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[revascularización coronaria incompleta]]></kwd>
<kwd lng="es"><![CDATA[eventos cardíacos]]></kwd>
<kwd lng="es"><![CDATA[intervencionismo coronario percutáneo]]></kwd>
<kwd lng="en"><![CDATA[incomplete coronary revascularization]]></kwd>
<kwd lng="en"><![CDATA[cardiac events]]></kwd>
<kwd lng="en"><![CDATA[percutaneous coronary intervention]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <div class=Section1>      <p align=right style='text-align:right'><b><span style='font-size:10.0pt; font-family:Verdana'>ART&Iacute;CULO ORIGINAL</span></b></p>      <p>&nbsp;</p>      <p><b><span style='font-size:13.5pt;font-family:Verdana'>Revascularizaci&oacute;n coronaria incompleta y eventos card&iacute;acos posteriores a intervencionismo coronario percut&aacute;neo </span></b></p>      <p>&nbsp;</p>      <p class=MsoNormal style='margin-top:6.0pt;margin-right:108.0pt;margin-bottom: 6.0pt;margin-left:0cm;line-height:150%'><b style='mso-bidi-font-weight:normal'><span lang=EN-US style='font-family:Verdana;mso-ansi-language:EN-US'>Incomplete coronary revascularization and cardiac events following percutaneous coronary intervention</span></b><b style='mso-bidi-font-weight:normal'><span lang=EN-GB style='font-family:Verdana;mso-bidi-font-family:Arial;mso-ansi-language:EN-GB'><o:p></o:p></span></b></p>      <p><span lang=EN-GB style='mso-ansi-language:EN-GB'>&nbsp;<o:p></o:p></span></p>      <p><span lang=EN-GB style='mso-ansi-language:EN-GB'>&nbsp;<o:p></o:p></span></p>      <p><b><span style='font-size:10.0pt;font-family:Verdana'>Dr. Amaury Flores S&aacute;nchez,<sup>1</sup> Dr.Cs. Roberto Luis Llerena Rojas,<sup>1</sup> Lic. Mar&iacute;a Beatriz Cabal&eacute; Vilari&ntilde;o<sup>2</sup></span> </b></p>      <p><sup><span style='font-size:10.0pt;font-family:Verdana'>1 </span></sup><span style='font-size:10.0pt;font-family:Verdana'>Instituto de Cardiolog&iacute;a y Cirug&iacute;a Cardiovascular. <st1:PersonName ProductID="La Habana" w:st="on">La  Habana</st1:PersonName>, Cuba.    ]]></body>
<body><![CDATA[<br> <sup>2 </sup>Universidad de <st1:PersonName ProductID="La Habana. La" w:st="on">La  Habana. La</st1:PersonName> Habana, Cuba.</span> </p>      <p>&nbsp; </p>      <p>&nbsp; </p>      <div class=MsoNormal align=center style='text-align:center'>  <hr size=1 width="100%" noshade color="#aca899" align=center>  </div>      <p><b><span style='font-size:10.0pt;font-family:Verdana'>RESUMEN</span></b></p>        <p><span style='font-size:10.0pt;font-family:Verdana'>No hay datos concluyentes      para evaluar la ventaja de la revascularizaci&oacute;n coronaria completa      en el intervencionismo coronario percut&aacute;neo. <b>    <br>     Objetivo general: </b>determinar si la revascularizaci&oacute;n incompleta      se asocia con la incidencia de eventos card&iacute;acos posteriores al intervencionismo      coronario percut&aacute;neo. <b>    <br>     M&eacute;todos:</b> se realiz&oacute; una investigaci&oacute;n observacional      prospectiva con 192 pacientes con enfermedad coronaria multivaso, sin antecedentes      de revascularizaci&oacute;n coronaria, tratados mediante intervencionismo      coronario percut&aacute;neo con implantes de <i>stents</i> en el Instituto      de Cardiolog&iacute;a desde el 1 de enero del 2003 hasta el 31 de diciembre      del 2005. <b>    <br>     An&aacute;lisis estad&iacute;stico:</b> para determinar la asociaci&oacute;n      de la revascularizaci&oacute;n incompleta con eventos card&iacute;acos se      calcul&oacute; el riesgo relativo. <b>    <br>     Resultados:</b> al analizar la asociaci&oacute;n de la revascularizaci&oacute;n      incompleta con los eventos cl&iacute;nicos y los procederes card&iacute;acos      posteriores al intervencionismo coronario percut&aacute;neo, no se obtuvo      relaci&oacute;n alguna.</span> <b><span style='font-size:10.0pt;font-family:Verdana;color:#231F20'>    ]]></body>
<body><![CDATA[<br>     Conclusiones:</span></b><span style='font-size:10.0pt;font-family:Verdana;color:#231F20'> la revascularizaci&oacute;n      coronaria incompleta no se asocia con mayor incidencia de eventos card&iacute;acos      posteriores a un intervencionismo coronario percut&aacute;neo con implantes      de <i>stents</i> convencionales. </span></p>      <p><b><span style='font-size:10.0pt;font-family:Verdana;color:#231F20'>Palabras clave:</span></b><span style='font-size:10.0pt;font-family:Verdana;color:#231F20'> revascularizaci&oacute;n coronaria incompleta, eventos card&iacute;acos, intervencionismo coronario percut&aacute;neo.<o:p></o:p></span></p>      <div class=MsoNormal align=center style='text-align:center'><span style='font-size:10.0pt;font-family:Verdana;color:#231F20'>  <hr size=1 width="100%" noshade color="#aca899" align=center>  </span></div>      <p><b><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana;mso-ansi-language: EN-GB'>ABSTRACT</span></b><span lang=EN-GB style='font-size:10.0pt;font-family: Verdana;mso-ansi-language:EN-GB'><o:p></o:p></span></p>        <p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='font-size:10.0pt;font-family:Verdana;mso-bidi-font-family: Arial;mso-ansi-language:EN-US'>No conclusive data are available to evaluate the      advantages of complete coronary revascularization in percutaneous coronary      intervention.</span><span lang=EN-US style='font-size:10.0pt;font-family:Verdana; mso-bidi-font-family:Arial;mso-ansi-language:EN-GB'> </span><b style='mso-bidi-font-weight:normal'><span lang=EN-US style='font-size:10.0pt; font-family:Verdana;mso-bidi-font-family:Arial;mso-ansi-language:EN-US'>    <br>     General objective</span></b><span lang=EN-US style='font-size:10.0pt;font-family:Verdana; mso-bidi-font-family:Arial;mso-ansi-language:EN-US'>:</span><span lang=EN-US style='font-size:10.0pt;font-family:Verdana;mso-bidi-font-family:Arial; mso-ansi-language:EN-GB'> </span><span lang=EN-US style='font-size:10.0pt; font-family:Verdana;mso-bidi-font-family:Arial;mso-ansi-language:EN-US'>Determine      whether incomplete revascularization is associated with the incidence of cardiac      events following percutaneous coronary intervention.</span><span lang=EN-US style='font-size:10.0pt;font-family:Verdana;mso-bidi-font-family: Arial;mso-ansi-language:EN-GB'> </span><b style='mso-bidi-font-weight:normal'><span lang=EN-US style='font-size:10.0pt;font-family:Verdana;mso-bidi-font-family: Arial;mso-ansi-language:EN-US'>    <br>     Methods</span></b><span lang=EN-US style='font-size:10.0pt;font-family:Verdana;mso-bidi-font-family:Arial; mso-ansi-language:EN-US'>:</span><span lang=EN-US style='font-size:10.0pt; font-family:Verdana;mso-bidi-font-family:Arial;mso-ansi-language:EN-GB'> </span><span lang=EN-US style='font-size:10.0pt;font-family:Verdana;mso-bidi-font-family: Arial;mso-ansi-language:EN-US'>A prospective observational study was conducted      with 192 patients with multivessel coronary disease and no history of coronary      revascularization, treated by percutaneous coronary intervention with stent      implantation at the <st1:place w:st="on"><st1:PlaceType w:st="on">Institute</st1:PlaceType>      of <st1:PlaceName w:st="on">Cardiology</st1:PlaceName></st1:place> from 1      January 2003 to 31 December 2005. <b style='mso-bidi-font-weight:normal'>    <br>     Statistical analysis</b>:</span><span lang=EN-US style='font-size:10.0pt;font-family:Verdana; mso-bidi-font-family:Arial;mso-ansi-language:EN-GB'> </span><span lang=EN-US style='font-size:10.0pt;font-family:Verdana;mso-bidi-font-family:Arial; mso-ansi-language:EN-US'>Relative risk was estimated to determine the association      of incomplete revascularization with cardiac events.</span><span lang=EN-US style='font-size:10.0pt;font-family:Verdana;mso-bidi-font-family: Arial;mso-ansi-language:EN-GB'> </span><b style='mso-bidi-font-weight:normal'><span lang=EN-US style='font-size:10.0pt;font-family:Verdana;mso-bidi-font-family: Arial;mso-ansi-language:EN-US'>    <br>     Results</span></b><span lang=EN-US style='font-size:10.0pt;font-family:Verdana;mso-bidi-font-family:Arial; mso-ansi-language:EN-US'>:</span><span lang=EN-US style='font-size:10.0pt; font-family:Verdana;mso-bidi-font-family:Arial;mso-ansi-language:EN-GB'> </span><span lang=EN-US style='font-size:10.0pt;font-family:Verdana;mso-bidi-font-family: Arial;mso-ansi-language:EN-US'>On analyzing the association of incomplete revascularization      with clinical events and cardiac procedures following percutaneous coronary      intervention, no relation was obtained.</span><span lang=EN-US style='font-size:10.0pt;font-family:Verdana;mso-bidi-font-family: Arial;mso-ansi-language:EN-GB'> </span><b style='mso-bidi-font-weight:normal'><span lang=EN-US style='font-size:10.0pt;font-family:Verdana;mso-bidi-font-family: Arial;mso-ansi-language:EN-US'>Conclusions</span></b><span lang=EN-US style='font-size:10.0pt;font-family:Verdana;mso-bidi-font-family:Arial; mso-ansi-language:EN-US'>:</span><span lang=EN-US style='font-size:10.0pt; font-family:Verdana;mso-bidi-font-family:Arial;mso-ansi-language:EN-GB'> </span><span lang=EN-US style='font-size:10.0pt;font-family:Verdana;mso-bidi-font-family: Arial;mso-ansi-language:EN-US'>Incomplete coronary revascularization is not associated      with a higher incidence of cardiac events following percutaneous coronary      intervention with conventional stent implantation.<o:p></o:p></span></p>      <p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana;mso-bidi-font-family: Arial;mso-ansi-language:EN-GB'><o:p>&nbsp;</o:p></span></p>      ]]></body>
<body><![CDATA[<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b style='mso-bidi-font-weight:normal'><span lang=EN-US style='font-size:10.0pt; font-family:Verdana;mso-bidi-font-family:Arial;mso-ansi-language:EN-US'>Key words</span></b><span lang=EN-US style='font-size:10.0pt;font-family:Verdana; mso-bidi-font-family:Arial;mso-ansi-language:EN-US'>:</span><span lang=EN-US style='font-size:10.0pt;font-family:Verdana;mso-bidi-font-family:Arial; mso-ansi-language:EN-GB'> </span><span lang=EN-US style='font-size:10.0pt; font-family:Verdana;mso-bidi-font-family:Arial;mso-ansi-language:EN-US'>incomplete coronary revascularization, cardiac events, percutaneous coronary intervention.</span><span lang=EN-US style='font-size:10.0pt;font-family:Verdana;mso-bidi-font-family: Arial;mso-ansi-language:EN-GB'> </span><span lang=EN-GB style='font-size:10.0pt; font-family:Verdana;mso-bidi-font-family:Arial;mso-ansi-language:EN-GB'><o:p></o:p></span></p>      <div class=MsoNormal align=center style='text-align:center'><span style='font-size:10.0pt;font-family:Verdana;color:red'>  <hr size=1 width="100%" noshade color="#aca899" align=center></span>         <p>&nbsp;</p>         <p><span style='font-size:10.0pt;font-family:Verdana;color:red'> </span></p>   </div>      <p><b><span style='font-family:Verdana'>INTRODUCCI&Oacute;N</span></b><span style='font-size:10.0pt;font-family:Verdana'> </span></p>      <p><span style='font-size:10.0pt;font-family:Verdana'>En un estudio reciente, la revascularizaci&oacute;n coronaria completa (RCC) no mejor&oacute; la evoluci&oacute;n a largo plazo de los pacientes tratados ya sea por intervencionismo coronario percut&aacute;neo (ICP) con <i>stents</i> liberadores de f&aacute;rmacos (SLF) o cirug&iacute;a coronaria.<sup>1 </sup>Sin embargo otros autores muestran que <st1:PersonName ProductID="la RCC" w:st="on">la  RCC</st1:PersonName> est&aacute; asociada con menor incidencia de muerte card&iacute;aca, infarto agudo de miocardio (IAM) y revascularizaci&oacute;n de lesi&oacute;n objeto en los a&ntilde;os posteriores al ICP con SLF.<sup>2</sup> En el <i>shock</i> cardiog&eacute;nico <st1:PersonName ProductID="la RCC" w:st="on">la RCC</st1:PersonName> es la estrategia terap&eacute;utica m&aacute;s &oacute;ptima.<sup>3,4</sup> No hay datos concluyentes para evaluar la ventaja de la revascularizaci&oacute;n coronaria completa (RCC) en pacientes tratados con ICP, y aunque el uso de <i>stents</i> convencionales se ha reducido, contin&uacute;an siendo los que m&aacute;s se implantan en Cuba. Por tal motivo se realiz&oacute; esta investigaci&oacute;n, que tiene el prop&oacute;sito de determinar si la revascularizaci&oacute;n coronaria incompleta (RCI) se asocia con una mayor incidencia de eventos card&iacute;acos posteriores al ICP con implante de <i>stents</i> convencionales.</span> </p>      <p>&nbsp; </p>      <p><b><span style='font-family:Verdana'>M&Eacute;TODOS</span></b><span style='font-size:10.0pt;font-family:Verdana'> </span></p>      <p><span style='font-size:10.0pt;font-family:Verdana'>Se realiz&oacute; una investigaci&oacute;n observacional longitudinal prospectiva, con una muestra constituida por pacientes con enfermedad coronaria multivaso, sin antecedentes de revascularizaci&oacute;n, tratados mediante ICP exitoso con <i>stents</i> convencionales en el Instituto de Cardiolog&iacute;a desde el 1 de enero del 2003 hasta el 31 de diciembre del 2005 e inscriptos en este hospital. Se excluyeron los pacientes que cumpl&iacute;an al menos 1 de los criterios siguientes: aclaramiento de creatinina (AC) inferior a 15 mL/min por <st1:metricconverter ProductID="1,73 m2" w:st="on">1,73 m<sup>2</sup></st1:metricconverter> antes del proceder y no disponibles para el seguimiento durante los 4 a&ntilde;os. La muestra final fue de 192 pacientes. El seguimiento cl&iacute;nico de los pacientes culmin&oacute; el 31 de diciembre del 2009. Se defini&oacute; como RCC aquella donde no quedaba ninguna estenosis residual en algun segmento coronario. </span></p>      <p><o:p>&nbsp;</o:p></p>      ]]></body>
<body><![CDATA[<p><b><span style='font-size:10.0pt;font-family:Verdana'>Obtenci&oacute;n de la informaci&oacute;n</span></b><span style='font-size:10.0pt;font-family:Verdana'> </span></p>      <p><span style='font-size:10.0pt;font-family:Verdana'>Los datos cl&iacute;nicos, demogr&aacute;ficos, angiogr&aacute;ficos y del proceder se obtuvieron de las historias cl&iacute;nicas, que se revisaron peri&oacute;dicamente para conocer la incidencia de eventos hasta los 4 a&ntilde;os, mediante las consultas programadas o ingresos hospitalarios. Aquellos pacientes que no acud&iacute;an con frecuencia a las consultas se contactaron telef&oacute;nicamente.</span> </p>      <p><span style='font-size:10.0pt;font-family:Verdana'>Eventos: angina inestable aguda (AIA) que requiri&oacute; ingreso o con isquemia documentada, IAM, muerte card&iacute;aca, reestenosis comprobada por angiograf&iacute;a sin nuevo ICP, otro ICP de la lesi&oacute;n objeto de ICP, revascularizaci&oacute;n quir&uacute;rgica. </span></p>      <p><o:p>&nbsp;</o:p></p>      <p><b><span style='font-size:10.0pt;font-family:Verdana'>An&aacute;lisis estad&iacute;stico</span></b><span style='font-size:10.0pt;font-family:Verdana'> </span></p>      <p><span style='font-size:10.0pt;font-family:Verdana'>Los valores de las variables categ&oacute;ricas se expresaron en porcentajes y los de las continuas en media &plusmn; DE. Para definir diferencias entre los grupos de revascularizados se utiliz&oacute; el X<sup>2</sup> para las variables categ&oacute;ricas y la prueba t Student para las continuas. Para determinar la asociaci&oacute;n de <st1:PersonName ProductID="la RCI" w:st="on">la RCI</st1:PersonName> con eventos card&iacute;acos se calcul&oacute; el riesgo relativo. La probabilidad de supervivencia libre de eventos y de angina inestable aguda se determin&oacute; mediante la prueba de Kaplan-Meier, y la diferencia entre los 2 grupos, mediante el test de Cox-Mantel. Se utiliz&oacute; el <i>softwar</i>e estad&iacute;stico SPSS v 16.0.</span> </p>      <p>&nbsp; </p>      <p><b><span style='font-family:Verdana'>RESULTADOS</span></b><span style='font-size:10.0pt;font-family:Verdana'> </span></p>      <p><span style='font-size:10.0pt;font-family:Verdana'>Completaron el estudio 192 pacientes: 68,2 % con RCI y 31,8 % con RCC, sin diferencias entre los grupos estudiados en cuanto a las variables cl&iacute;nicas y demogr&aacute;ficas (<a href="#tab1_06">tabla 1</a>). Existi&oacute; mayor n&uacute;mero de vasos lesionados por paciente y de pacientes con lesiones en cada una de las arterias coronarias epic&aacute;rdicas en los que se revascularizaron de forma incompleta (<a href="#tab2_06">tabla 2</a>).</span> </p>        <p align=center style='text-align:center'><a name="tab1_06"></a><img border=0 width=520 height=392 id="_x0000_i1028" src=/img/revistas/ibi/v31n2/t0106212.gif></p>        
]]></body>
<body><![CDATA[<p align=center style='text-align:center'><a name="tab2_06"></a><img border=0 width=539 height=276 id="_x0000_i1029" src=/img/revistas/ibi/v31n2/t0206212.gif></p>      
<p>    <br> <span style='font-size:10.0pt;font-family:Verdana'>Se trat&oacute; el 55 %, 36 % y 91 % de los pacientes con lesiones en DA, CX y CD, respectivamente, en el grupo de revascularizaci&oacute;n incompleta; y el 93,9 %, 93,1 % y 93,7 % de los pacientes con lesiones en DA, CX y CD en el grupo de revascularizaci&oacute;n completa. </span></p>        <p><span style='font-size:10.0pt;font-family:Verdana'>El 5 % de la poblaci&oacute;n      de estudio falleci&oacute; durante el seguimiento evolutivo de 4 a&ntilde;os      posteriores al ICP. No difirieron los grupos respecto a la incidencia de eventos,      ya fueran cl&iacute;nicos (muerte, IAM, AIA) o de procederes card&iacute;acos      (otro ICP, revascularizaci&oacute;n quir&uacute;rgica, revascularizaci&oacute;n      de lesi&oacute;n objeto de ICP o diana), ni en relaci&oacute;n con la superviviencia      libre de eventos (<a href="#tab3_06">tabla 3</a>, <a href="/img/revistas/ibi/v31n2/f0106212.jpg">figs.      1</a> y <a href="#fig2_06">2</a>).</span> </p>        
<p align=center style='text-align:center'><a name="tab3_06"></a><img border=0 width=540 height=216 id="_x0000_i1030" src=/img/revistas/ibi/v31n2/t0306212.gif></p>        
<p align=center style='text-align:center'><a name="fig2_06"></a><img border=0 width=425 height=504 id="_x0000_i1031" src=/img/revistas/ibi/v31n2/f0206212.jpg></p>      
<p align=center style='text-align:center'>&nbsp; </p>      <p><span style='font-size:10.0pt;font-family:Verdana'>Se realiz&oacute; otro ICP en 57 y en 40 pacientes se document&oacute; reestenosis angiogr&aacute;fica. No existieron diferencias entre los grupos en cuanto a la incidencia de reestenosis angiogr&aacute;fica (p= 0,44).</span> </p>      <p>&nbsp; </p>      <p><b><span style='font-family:Verdana'>DISCUSI&Oacute;N</span></b><b><span style='font-size:10.0pt;font-family:Verdana'> </span></b></p>      ]]></body>
<body><![CDATA[<p><span style='font-size:10.0pt;font-family:Verdana'>La incidencia de revascularizaci&oacute;n incompleta es superior a otros estudios, donde oscila entre 31 y 58 %.<sup>1,2,5,6</sup> Esto podr&iacute;a explicarse por el mayor n&uacute;mero de lesiones en las 3 arterias coronarias epic&aacute;rdicas y por ende, de lesiones significativas por paciente, en el grupo de RCI. Solo la mitad de los pacientes tratados por ICP con implante de <i>stent</i> convencional no presentar&aacute;n alg&uacute;n evento card&iacute;aco al cabo de 4 a&ntilde;os, ya sean revascularizados de forma completa e incompleta. </span></p>      <p><span style='font-size:10.0pt;font-family:Verdana'>En los estudios internacionales prospectivos<sup>6-8 </sup>solo se determina la incidencia de eventos card&iacute;acos mayores, que incluye la muerte card&iacute;aca, IAM y revascularizaci&oacute;n de lesi&oacute;n diana. Nosotros adicionalmente estudiamos la incidencia de AIA, de otro ICP que incluye la revascularizaci&oacute;n de lesi&oacute;n objeto de ICP o diana, la revascularizaci&oacute;n quir&uacute;rgica y la reestenosis angiogr&aacute;fica. El evento m&aacute;s frecuente fue la realizaci&oacute;n de otro ICP. De los 57 pacientes (29,6 %) tratados con otro ICP, 36 (18,7 %) fueron revascularizados de la lesi&oacute;n objeto debido a reestenosis, y los 21 restantes debido a progresi&oacute;n de la enfermedad ateroscler&oacute;tica. No existieron diferencias entre la revascularizaci&oacute;n incompleta y completa en cuanto a la incidencia de otros ICP. No existi&oacute; un predominio del IAM con elevaci&oacute;n del segmento ST como causa del proceder, dado que el 36,9 % present&oacute; un SCA antes del ICP, que incluy&oacute; la angina inestable aguda, IAM sin y con elevaci&oacute;n del ST. En un estudio que analiz&oacute; la incidencia de otro ICP, reinfarto y muerte card&iacute;aca en pacientes con IAM con elevaci&oacute;n del segmento ST, solo se demostraron diferencias entre los que se les trat&oacute; la lesi&oacute;n causante de isquemia y los que se trataron varias lesiones, con respecto a menores &iacute;ndices de otros ICP en los &uacute;ltimos.<sup>9</sup> </span></p>      <p><st1:PersonName ProductID="La AIA" w:st="on"><span style='font-size:10.0pt;  font-family:Verdana'>La AIA</span></st1:PersonName><span style='font-size: 10.0pt;font-family:Verdana'> en pacientes ya revascularizados por ICP puede ser debido a reestenosis. Por lo tanto, puede manifestarse en pacientes con reestenosis y/o progresi&oacute;n de la enfermedad e incluso en pacientes que no fue completa la revascularizaci&oacute;n. Sin embargo, el hecho de que quedaran lesiones sin revascularizar no determin&oacute; una mayor incidencia de AIA en el grupo de pacientes con revascularizaci&oacute;n incompleta. </span></p>      <p><span style='font-size:10.0pt;font-family:Verdana'>No existieron diferencias en cuanto a lo que internacionalmente se consideran eventos card&iacute;acos mayores, lo cual coincide con algunas investigaciones recientes.<sup>3,10</sup> </span></p>      <p><span style='font-size:10.0pt;font-family:Verdana'>En nuestros pacientes que se revascularizaron ya sea de forma incompleta o completa, predomin&oacute; la angina estable como causa del ICP, lo que puede ser un factor determinante para que no existieran diferencias entre ambos grupos en su evoluci&oacute;n posICP, al no predominar el s&iacute;ndrome coronario agudo como motivo del mismo. El SCA es un predictor de complicaciones posICP.<sup>11,12</sup><span style='color:red'> </span>Es precisamente en un subgrupo de los pacientes con SCA, los que presentan <i>shock</i> cardiog&eacute;nico y que fueron muy escasos en la poblaci&oacute;n estudiada, donde los reportes internacionales muestran los beneficios evidentes de <st1:PersonName ProductID="la RCC.3" w:st="on">la RCC.<sup>3</sup></st1:PersonName><sup>,13</sup></span> <span style='color:#231F20'><o:p></o:p></span></p>      <p><span style='font-size:10.0pt;font-family:Verdana;color:#231F20'>La revascularizaci&oacute;n coronaria incompleta no se asocia con mayor incidencia de eventos card&iacute;acos posteriores a un ICP exitoso con implante de <i>stents</i> convencionales.</span><span style='color:#231F20'> <o:p></o:p></span></p>      <p><span style='color:#231F20'>&nbsp; </span></p>      <p><b><span style='font-family:Verdana'>REFERENCIAS BIBLIOGR&Aacute;FICAS</span></b> </p>        <!-- ref --><p><span style='font-size:10.0pt;font-family:Verdana'>1. Kim YH, Park DW, Lee      JY, Kim WJ, Yun SC<, Ahn JM, et al. Impact of angiographic complete revascularization      after drug-eluting stent implantation or coronary artery bypass graft surgery      for multivessel coronary artery disease. Circulation. 2011;123(21):2373-81.      >, <span lang=ES-MX style='color:windowtext;mso-ansi-language:ES-MX;text-decoration: none;text-underline:none'>Ahn JM</span>,</span><span lang=ES-MX style='font-size:10.0pt;font-family:Verdana;mso-ansi-language:ES-MX'> et al. </span><span lang=EN-US style='font-size:10.0pt;font-family:Verdana;mso-ansi-language:EN-US'>Impact      of angiographic complete revascularization after drug-eluting stent implantation      or coronary artery bypass graft surgery for multivessel coronary artery disease.      </span><span style='font-size:10.0pt;font-family:Verdana'><span style='color:windowtext;text-decoration:none;text-underline:none'>Circulation</span>.      2011;123(21):2373-81.    </span><span style='mso-bidi-font-size:10.0pt;font-family: Verdana'> <o:p></o:p></span></p>      ]]></body>
<body><![CDATA[<!-- ref --><p><span style='font-size:10.0pt;font-family:Verdana'>2. Tamburino C, Angiolillo DJ, Capranzano P, Dimopoulos K, <st1:PersonName ProductID="La Manna A" w:st="on">La Manna A</st1:PersonName>, Barbagallo R, et al. </span><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana; mso-ansi-language:EN-GB'>Complete versus incomplete revascularization in patients with multivessel disease undergoing percutaneous coronary intervention with drug-eluting stents.<b> </b>Catheter Cardiovasc Interv.<b> </b>2008;72(4):448-56.     </span><span lang=EN-GB style='mso-ansi-language:EN-GB'><o:p></o:p></span></p>      <!-- ref --><p><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana;color:#231F20; mso-ansi-language:EN-GB'>3. Wijns W, Kolh P, Danchin N, Di Mario C, Falk V, Folliguet T, et al. </span><span lang=EN-GB style='font-size:10.0pt;font-family: Verdana;mso-ansi-language:EN-GB'>Guidelines on myocardial revascularization. <span style='color:#231F20'>Europ Heart J. 2010;31:2501-55.    </span></span><span lang=EN-GB style='mso-ansi-language:EN-GB'> <o:p></o:p></span></p>      <!-- ref --><p><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana;mso-ansi-language: EN-GB'>4. Hannan EL, Samadashvili Z, Walford G, Holmes DR Jr, Jacobs AK Stamato NJ, et al.Culprit vessel percutaneous coronary intervention versus multivessel and staged percutaneous coronary intervention for ST-segment elevation myocardial infarction patients with multivessel disease. </span><span style='font-size:10.0pt;font-family:Verdana'>JACC Cardiovasc Interv. 2010;3(1):22-31.     </span></p>      <!-- ref --><p><span style='font-size:10.0pt;font-family:Verdana'>5. Sarno G, Garg S, Onuma Y, Guti&eacute;rrez-Chico JL, van den Brand MJ, Rensing BJ, et al. </span><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana;mso-ansi-language:EN-GB'>Impact of completeness of revascularization on the five-year outcome in percutaneous coronary intervention and coronary artery bypass graft patients (from the ARTS-II study). Am J Cardiol. 20;106(10):1369-75.     </span><span lang=EN-GB style='mso-ansi-language:EN-GB'><o:p></o:p></span></p>      <!-- ref --><p><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana;mso-ansi-language: EN-GB'>6. Teplitsky I, Assali A, Lev E, Brosh D, Vaknin-Assa H, Kornowski R. Results of percutaneous coronary interventions in patients &gt; or= 90 years of age. Catheter Cardiovasc Interv. 2007;70:937-43.     </span><span lang=EN-GB style='mso-ansi-language:EN-GB'><o:p></o:p></span></p>      ]]></body>
<body><![CDATA[<!-- ref --><p><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana;mso-ansi-language: EN-GB'>7. Duvernoy CS, Smith DE, Manohar P, Schaefer A, Kline-Rogers E, Share, et al. Gender differences in adverse outcomes after Contemporary percutaneous coronary intervention: Ananalysis from the Blue Cross Blue Shield of Michigan Cardiovascular Consortium (BMC2) percutaneous Coronary intervention registry. Am Heart J. 2010;159:1359-62.     </span><span lang=EN-GB style='mso-ansi-language: EN-GB'><o:p></o:p></span></p>      <!-- ref --><p><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana;mso-ansi-language: EN-GB'>8. Bevc S, Penko M, Kanic V, Hojs R. Mortality of patients with renal dysfunction after percutaneous coronary intervention. Angiology. 2010;61:24-30.     </span><span lang=EN-GB style='mso-ansi-language:EN-GB'><o:p></o:p></span></p>      <!-- ref --><p><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana;mso-ansi-language: EN-GB'>9. Navarese EP, De Servi S, Buffon A, Suryapranata H, De Luca G. Clinical impact of simultaneous complete revascularization vs. culprit only primary angioplasty in patients with st-elevation myocardial infarction and multivessel disease: a meta-analysis. J Thromb Thrombolysis. 2011;31(2):217-25.    </span><span lang=EN-GB style='mso-ansi-language:EN-GB'> <o:p></o:p></span></p>      <!-- ref --><p><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana;mso-ansi-language: EN-GB'>10. Yang HH, Chen Y, Gao CY. The influence of complete coronary revascularization on long-term outcomes in patients with multivessel coronary heart disease undergoing successful percutaneous coronary intervention. J Int Med Res. 2010;38(3):1106-12.     </span><span lang=EN-GB style='mso-ansi-language: EN-GB'><o:p></o:p></span></p>      <!-- ref --><p><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana;mso-ansi-language: EN-GB'>11. Keelan ET, Nunez BD, <st1:place w:st="on"><st1:City w:st="on">Grill</st1:City>  <st1:State w:st="on">DE</st1:State></st1:place>. Comparison of inmediate and long-term outcome of coronary angioplasty performed for unstable angina and rest pain in men and women. Mayo Clin Proc. 1997;72:5-12.     </span><span lang=EN-GB style='mso-ansi-language:EN-GB'><o:p></o:p></span></p>      ]]></body>
<body><![CDATA[<!-- ref --><p><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana;mso-ansi-language: EN-GB'>12. Heidland UE, Michel CJ, Aktug O, Heintzen MP, Strauer BE. Determinants of long term follow-up after stents implantation in acute myocardial infarction. Z Kardiol. 2002;91:905-12.     </span><span lang=EN-GB style='mso-ansi-language:EN-GB'><o:p></o:p></span></p>      <!-- ref --><p><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana;mso-ansi-language: EN-GB'>13. Jeger RV, Pfisterer ME. Primary PCI in STEMI-dilemmas and controversies: multivessel disease in STEMI patients. Complete versus Culprit Vessel revascularization in acute ST-elevation myocardial infarction. </span><span style='font-size:10.0pt;font-family:Verdana'>Minerva Cardioangiol. 2011;59(3):225-33.    </span> </p>      <p>&nbsp; </p>      <p>&nbsp; </p>      <p><span style='font-size:10.0pt;font-family:Verdana'>Recibido: 30 de marzo del 2012.     <br> Aprobado: 1 de junio del 2012.</span> </p>      <p><o:p>&nbsp;</o:p></p>      <p><o:p>&nbsp;</o:p></p>      ]]></body>
<body><![CDATA[<p><span style='font-size:10.0pt;font-family:Verdana'>Dr. <i>Amaury Flores S&aacute;nchez. </i>Instituto de Cardiolog&iacute;a y Cirug&iacute;a Cardiovascular. <st1:PersonName ProductID="La Habana" w:st="on">La Habana</st1:PersonName>, Cuba. Correo electr&oacute;nico: <u><span style='color:blue'><a href="mailto:amauryflores@infomed.sld.cu">amauryflores@infomed.sld.cu</a> </span></u></span></p>  </div>       ]]></body><back>
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