<?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>2954-3835</journal-id>
<journal-title><![CDATA[Cardiovascular and metabolic science]]></journal-title>
<abbrev-journal-title><![CDATA[Cardiovasc. metab. sci]]></abbrev-journal-title>
<issn>2954-3835</issn>
<publisher>
<publisher-name><![CDATA[Asociación Nacional de Cardiólogos de México A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2954-38352020000100004</article-id>
<article-id pub-id-type="doi">10.35366/93256</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Radiofrequency catheter ablation of cardiac arrhythmias using only three-dimentional mapping systems]]></article-title>
<article-title xml:lang="es"><![CDATA[Ablación con catéter de radiofrecuencia de taquiarritmias usando sólo sistemas de mapeo tridimensional]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Robledo-Nolasco]]></surname>
<given-names><![CDATA[Rogelio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Leal-Díaz]]></surname>
<given-names><![CDATA[José Raymundo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado Centro Médico Nacional 20 de Noviembre ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2020</year>
</pub-date>
<volume>31</volume>
<numero>1</numero>
<fpage>4</fpage>
<lpage>8</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2954-38352020000100004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2954-38352020000100004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2954-38352020000100004&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: The largest number of radiofrequency catheter ablation (RCA) procedures are performed with the help of X-rays. Ionizing radiation affects both, the patient and the electrophysiologist. Today it is a priority to reduce exposure to X-rays and this is possible with new technologies and techniques for RCA.  Objectives:  The objective of this report is to demonstrate the feasibility and safety of performing RCA of conventional and complex cardiac arrhythmias (CA) without using X-rays in a single center.  Material and methods:  Patients with different CA and with indication of RCA were included. All had an echocardiogram and the antiarrhythmic drugs were suspended 5 half-lives before the procedure. Two three-dimensional mapping systems were used. First a catheter was advanced to draw the path of the access vessels and then the cardiac cavities were reconstructed and the origin of the arrhythmia was located. RCA with conventional parameters were performed.  Results:  We included 14 patients with mean age of 46.4 ± 16.9 years, 7 (50%) women, 2 (14.3%) had heart failure. There were 11 (78.6%) common and 3 (21.4%) complex arrhythmias. In 10 (71.4%) patients, the Carto 3 system was used and in the rest the Ensite system. A mean of 334 ± 335 mapping points were performed, an irrigated catheter was used in 12 (85.7%) patients, 50 ± 82 ablation applications were performed, the duration of the procedure was 100 ± 24 minutes and 13 (92.8%) of the procedures were successful. No X-rays were used and there were no complications.  Conclusions:  It is feasible and safe to perform RCA of conventional or complex CA with a three-dimensional mapping system, without using X-rays and with 92.8% success rate.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Introducción:  El mayor número de procedimientos de ablación con catéteres de radiofrecuencia (ACR) se realiza con la ayuda de rayos X. La radiación ionizante afecta tanto al paciente como al electrofisiólogo. Hoy en día, es una prioridad reducir la exposición a los rayos X y esto es posible con nuevas tecnologías y técnicas para el ACR.  Objetivos:  Demostrar la viabilidad y seguridad de realizar ACR de arritmias cardiacas (AC) convencionales y complejas sin utilizar rayos X en ningún centro.  Material y métodos:  Se incluyeron pacientes con diferentes AC y con indicación de ACR. A todos se les realizó un ecocardiograma y se les suspendió la medicación antiarrítmica cinco medias vidas antes del procedimiento. Se utilizaron dos sistemas de mapeo tridimensional. Primero se avanzó un catéter para trazar el trayecto de los vasos de acceso, y luego se reconstruyeron las cavidades cardiacas y se localizó el origen de la arritmia. Se realizó ACR con parámetros convencionales.  Resultados:  Incluimos 14 pacientes con una edad media de 46.4 ± 16.9 años, 7 (50%) mujeres, 2 (14.3%) tenían insuficiencia cardiaca. Hubo 11 (78.6%) arritmias comunes y tres (21.4%) complejas. En 10 (71.4%) pacientes se utilizó el sistema Carto 3 y en el resto el sistema Ensite. Se realizaron en promedio 334 ± 335 puntos de mapeo, se utilizó un catéter irrigado en 12 (85.7%) pacientes, se realizaron 50 ± 82 aplicaciones de ablación; la duración del procedimiento fue de 100 ± 24 minutos y 13 (92.8%) de los procedimientos tuvieron éxito. No se utilizaron rayos X y no hubo complicaciones.  Conclusiones:  Es factible y seguro realizar el ACR de la AC convencional o compleja con un sistema de mapeo tridimensional, sin utilizar rayos X y con una tasa de éxito de 92.8%.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Catheter ablation]]></kwd>
<kwd lng="en"><![CDATA[cardiac arrhythmias]]></kwd>
<kwd lng="en"><![CDATA[without fluoroscopy]]></kwd>
<kwd lng="en"><![CDATA[three-dimensional mapping]]></kwd>
<kwd lng="es"><![CDATA[Ablación con catéter]]></kwd>
<kwd lng="es"><![CDATA[arritmia cardiaca]]></kwd>
<kwd lng="es"><![CDATA[sin fluoroscopia]]></kwd>
<kwd lng="es"><![CDATA[mapeo tridimensional]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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