<?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>1688-0420</journal-id>
<journal-title><![CDATA[Revista Uruguaya de Cardiología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev.Urug.Cardiol.]]></abbrev-journal-title>
<issn>1688-0420</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Uruguaya de Cardiología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1688-04202017000300277</article-id>
<article-id pub-id-type="doi">10.29277/ruc/32.3.8</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Implante de válvulas transcatéter en prótesis valvulares quirúrgicas disfuncionantes: un cambio de paradigma]]></article-title>
<article-title xml:lang="en"><![CDATA[Transcatheter valve implantation in dysfunctioning surgical valvular prostheses: a paradigm shift]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vignolo]]></surname>
<given-names><![CDATA[Gustavo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de la República Facultad de Medicina Hospital de Clínicas]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Uruguay</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2017</year>
</pub-date>
<volume>32</volume>
<numero>3</numero>
<fpage>277</fpage>
<lpage>283</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_arttext&amp;pid=S1688-04202017000300277&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_abstract&amp;pid=S1688-04202017000300277&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_pdf&amp;pid=S1688-04202017000300277&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La disfunción de las bioprótesis quirúrgicas frecuentemente ocurre en pacientes añosos, con severas comorbilidades, lo que implica un riesgo elevado frente a una nueva cirugía valvular. El implante de válvulas transcatéter dentro de bioprótesis disfuncionantes o procedimiento valve in valve (VIV), ha sido desarrollado como una nueva alternativa terapéutica para este tipo de situación. Los procedimientos VIV deben ser considerados para pacientes con disfunción protésica severa sintomática con alto riesgo quirúrgico, luego de un exhaustivo análisis individualizado por un grupo de expertos o heart team. La selección y evaluación previa de los pacientes son fundamentales para el éxito del procedimiento. La evidencia respalda más fuertemente este tipo de intervención en posición aórtica que en posición mitral. En esta revisión analizamos brevemente las indicaciones, la evaluación previa de los pacientes, los aspectos relevantes del procedimiento y sus complicaciones eventuales, con especial énfasis en el procedimiento VIV mitral, que ha sido motivo de dos recientes reportes de casos en esta revista.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Summary Bioprosthetic surgical valve dysfunction occurs frequently in elderly patients with severe comorbidities, which implies a high surgical risk in case of redo valve surgery. Transcatheter valve implantation within a surgical bioprosthesis, so-called valve in valve procedure (VIV), has been developed as new treatment option for this situation. VIV procedures should be considered in patients with severely symptomatic prosthetic valve dysfunction with high surgical risk, after careful heart team evaluation. Patient selection and pre-procedural evaluation are mainstay for procedural success. Current evidence has stronger support for VIV procedure in aortic than in mitral position. In this review, we briefly analyze VIV procedure indications, patient evaluation, as well as relevant aspects of the procedure itself and its most frequent complications. Special emphasis will be given for VIV in mitral position which has been the focus of two recent case reports in this journal.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Prótesis valvulares cardíacas]]></kwd>
<kwd lng="es"><![CDATA[Implantación de prótesis de válvulas cardíacas]]></kwd>
<kwd lng="es"><![CDATA[Valve in valve mitral transcatéter]]></kwd>
<kwd lng="en"><![CDATA[Heart valve prosthesis]]></kwd>
<kwd lng="en"><![CDATA[Heart valve prosthesis implantation]]></kwd>
<kwd lng="en"><![CDATA[Transcatheter mitral valve-in-valve]]></kwd>
</kwd-group>
</article-meta>
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