<?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>S1688-04202023000101405</article-id>
<article-id pub-id-type="doi">10.29277/cardio.38.1.8</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Fibrilación auricular recurrente posterior a ablación de venas pulmonares. Serie de casos]]></article-title>
<article-title xml:lang="en"><![CDATA[Recurrent atrial fibrillation after ablation of pulmonary veins. Case series]]></article-title>
<article-title xml:lang="pt"><![CDATA[Fibrilação atrial recorrentes pós ablação das veias pulmonares. Série de casos]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Espinosa Anguiano]]></surname>
<given-names><![CDATA[José Saul]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Inzunza-Cervantes]]></surname>
<given-names><![CDATA[Gustavo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital de Especialidades Ignacio García Téllez nstituto Mexicano del Seguro Social, Centro Médico Nacional de Occidente Servicio de Electrofisiología]]></institution>
<addr-line><![CDATA[Jalisco Guadalajara]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital de Especialidades N.o 2 Luis Donaldo Colosio Murrieta Instituto Mexicano del Seguro Social, Centro Médico Nacional del Noroeste Servicio de Cardiología]]></institution>
<addr-line><![CDATA[Ciudad Obregón Sonora]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2023</year>
</pub-date>
<volume>38</volume>
<numero>1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_arttext&amp;pid=S1688-04202023000101405&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_abstract&amp;pid=S1688-04202023000101405&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_pdf&amp;pid=S1688-04202023000101405&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: La ablación de las venas pulmonares se ha convertido en un tratamiento clave para fibrilación auricular (FA). Sin embargo, pueden ocurrir recurrencias. La estrategia disponible para la ablación después de una recurrencia de FA es controvertida, compleja y desafiante, y la información es limitada. Mediante la presentación de una serie de casos se resumen y discuten elementos clave en la comprensión y tratamiento del paciente con FA recurrente sintomática después de un procedimiento inicial de ablación de venas pulmonares que requiere un nuevo procedimiento de ablación. En las últimas décadas se ha obtenido una mejor comprensión de los mecanismos fisiopatológicos implicados en la FA recurrente posterior a ablación de venas pulmonares, lo que permite identificar factores asociados, crear scores predictores e implementar técnicas de optimización o estrategias adicionales para mejorar la durabilidad y la eficacia del aislamiento de venas pulmonares. Debido a que la reconexión de venas pulmonares es un hallazgo típico durante los procedimientos repetidos, ésta debe ser considerada el objetivo principal de una nueva ablación. Las estrategias de ablación adicional (desencadenantes extrapulmonares o sustratos arritmogénicos) son controvertidas y requieren investigaciones futuras.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Summary: Pulmonary vein ablation has become a key treatment for atrial fibrillation (AF). However, recurrences can occur. The ideal strategy for ablation after AF recurrence is controversial, complex, and challenging, with limited data available. By presenting a series of cases, we summarize and discuss key elements in the understanding and treatment of patients with symptomatic recurrent AF after an initial pulmonary vein ablation procedure who are subjected to a new ablation procedure. In recent decades, there has been a better understanding of the pathophysiological mechanisms involved in recurrent AF after pulmonary vein ablation, making it possible to identify associated factors, create predictive scores and implement optimization techniques or additional strategies to improve the durability and efficacy of pulmonary veins isolation. Because pulmonary vein reconnection is a typical finding during repeat procedures, it should be considered the primary goal for a repeat ablation procedure. Additional ablation strategies (extrapulmonary triggers or arrhythmogenic substrates) are controversial and require further investigation.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo: A ablação das veias pulmonares tornou-se um tratamento chave para fibrilação atrial (FA). No entanto, podem ocorrer recorrências. A estratégia ideal para a ablação após uma recorrência da FA é controversa, complexa e desafiadora e existem dados limitados. Através da apresentação de uma série de casos resumimos e discutimos elementos chave no entendimento e tratamento do paciente com FA recorrente sintomática após um procedimento inicial de ablação de veias pulmonares, que são submetidos a um novo procedimento de ablação. Nas últimas décadas obteve-se uma melhor compressão dos mecanismos fisiopatológicos envolvidos na FA recorrente pós-ablação de veias pulmonares, isso permite identificar fatores associados, criar scores preditores, implementar técnicas de otimização ou estratégias adicionais para melhorar a durabilidade e eficácia do isolamento de veias pulmonares. Dado que a reconexão de veias pulmonares é um achado típico durante os procedimentos repetidos deve ser considerado o objetivo principal para uma nova ablação. As estratégias de ablação adicional (desencadeadores extrapulmonares ou substratos arritmogénicos) são controversas e requerem investigação futura.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[fibrilación auricular]]></kwd>
<kwd lng="es"><![CDATA[ablación con catéter]]></kwd>
<kwd lng="es"><![CDATA[aislamiento de venas pulmonares]]></kwd>
<kwd lng="es"><![CDATA[recurrencias]]></kwd>
<kwd lng="en"><![CDATA[atrial fibrillation]]></kwd>
<kwd lng="en"><![CDATA[catheter ablation]]></kwd>
<kwd lng="en"><![CDATA[pulmonary vein isolation]]></kwd>
<kwd lng="en"><![CDATA[recurrences]]></kwd>
<kwd lng="pt"><![CDATA[fibrilação auricular]]></kwd>
<kwd lng="pt"><![CDATA[ablação com cateter]]></kwd>
<kwd lng="pt"><![CDATA[isolamento de veias pulmonares]]></kwd>
<kwd lng="pt"><![CDATA[recorrencias]]></kwd>
</kwd-group>
</article-meta>
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