<?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>S0864-03002019000400007</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Evaluación del deterioro contráctil en pacientes sometidos a estimulación eléctrica en punta de ventrículo derecho]]></article-title>
<article-title xml:lang="en"><![CDATA[Evaluation of contractile deterioration in patients undergoing electrical stimulation on the right ventricular tip]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Nodarse Concepción]]></surname>
<given-names><![CDATA[Arian]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez González]]></surname>
<given-names><![CDATA[Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chávez González]]></surname>
<given-names><![CDATA[Elibet]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Provincial Universitario&#8220;Arnaldo Milián Castro&#8221; Departamento de Ecocardiografía ]]></institution>
<addr-line><![CDATA[Santa Clara ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital Provincial Universitario &#8220;Arnaldo Milián Castro&#8221; Sesión estimulación Cardíaca permanente ]]></institution>
<addr-line><![CDATA[Santa Clara ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Cardiocentro &#8220;Ernesto Che Guevara&#8221; Departamento de electrofisiología ]]></institution>
<addr-line><![CDATA[Santa Clara ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<volume>38</volume>
<numero>4</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0864-03002019000400007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0864-03002019000400007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0864-03002019000400007&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción:  A pesar de los indiscutibles beneficios en cuanto a calidad y expectativa de vida en los pacientes con indicaciones precisas de marcapasos, existen un grupo de ellos con efectos deletéreos en la función y geometría ventricular izquierda.  Objetivo:  Identificar modificaciones ecocardiográficas en pacientes con estimulación cardíaca permanente realizada desde punta de ventrículo derecho.  Métodos:  Se realizó estudio descriptivo longitudinal prospectivo a 84 pacientes que requirieron implantación de marcapasos permanente con estimulación desde punta del ventrículo derecho. Se recolectaron datos ecocardiográficos antes y después del implante.  Resultados:  El 53,65 % fueron del sexo masculino, edad media 68,25. Las medias de las variables ecocardiográficas incrementaron sus valores, excepto, la fracción de eyección del ventrículo izquierdo que disminuyó, el grupo con estimulación secuencial presentó 4 casos más con disfunción diastólica grado II que al inicio, el grupo con estimulación no secuencial tuvo 5 casos con disfunción diastólica grado III, la fracción de eyección del ventrículo izquierdo disminuye un 6 % en pacientes con estimulación secuencial y 9 % para el modo no secuencial.  Conclusiones:  Las modificaciones ecocardiográficas durante el estudio mostraron una tendencia grupal al aumento excepto la fracción de eyección del ventrículo izquierdo que disminuyó.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction:  Despite their indisputable benefits for the quality of life and life expectancy of patients with precise pacemaker indications, a number of these devices have shown to have deleterious effects in terms of left ventricular function and geometry.  Objective:  Identify echocardiographic changes in patients with permanent cardiac stimulation applied from the right ventricular tip.  Methods:  A prospective longitudinal descriptive study was conducted of 84 patients requiring permanent pacemaker implantation with stimulation from the right ventricular tip. Echocardiographic data were collected before and after implantation.  Results:  Of the total patients, 53.65% were male. Mean age was 68.25 years. An increase was observed in all the means of echocardiographic values except for the left ventricular ejection fraction, which decreased. The sequential stimulation group presented 4 more cases with grade II diastolic dysfunction than at baseline, whereas the group with non-sequential stimulation included 5 grade III diastolic dysfunction cases. Left ventricular ejection fraction lowered 6% in patients with sequential stimulation and 9% in patients with non-sequential stimulation.  Conclusions:  Echocardiographic changes during the study showed a group tendency to increase, except for the left ventricular ejection fraction, which decreased.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[marcapasos]]></kwd>
<kwd lng="es"><![CDATA[fracción de eyección]]></kwd>
<kwd lng="es"><![CDATA[ventrículo izquierdo]]></kwd>
<kwd lng="es"><![CDATA[disincronía]]></kwd>
<kwd lng="en"><![CDATA[pacemaker]]></kwd>
<kwd lng="en"><![CDATA[ejection fraction]]></kwd>
<kwd lng="en"><![CDATA[left ventricle]]></kwd>
<kwd lng="en"><![CDATA[dyssynchrony]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Muto]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Calvi]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Botto]]></surname>
<given-names><![CDATA[GL]]></given-names>
</name>
<name>
<surname><![CDATA[Pecora]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Ciaramitaro]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Valsecchi]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Is there a right place to pace the right ventricle Evaluation of apical and septal positions in a pacemaker population: study protocol for a prospective intervention-control trial]]></article-title>
<source><![CDATA[Contemporary Clinical Trials]]></source>
<year>2014</year>
<volume>39</volume>
<page-range>320-36</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ahmed]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Gorcsan]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Marek]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Ryo]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Haugaa]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Ludwig]]></surname>
<given-names><![CDATA[DR]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Right ventricular apical pacing-induced left ventricular dyssynchrony is associated with a subsequent decline in ejection fraction]]></article-title>
<source><![CDATA[Heart Rhythm]]></source>
<year>2014</year>
<volume>11</volume>
<page-range>602-8</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Den Besten]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Sedney]]></surname>
<given-names><![CDATA[MI]]></given-names>
</name>
<name>
<surname><![CDATA[Frederiks]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[van Hemel]]></surname>
<given-names><![CDATA[NM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Left ventricular dysfunction due to right ventricular stimulation is biventricular upgrade really necessary?]]></article-title>
<source><![CDATA[Neth Heart J]]></source>
<year>2010</year>
<volume>18</volume>
<numero>12</numero>
<issue>12</issue>
<page-range>604-5</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Yu]]></surname>
<given-names><![CDATA[CM]]></given-names>
</name>
<name>
<surname><![CDATA[Fang]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Luo]]></surname>
<given-names><![CDATA[XX]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Long-term follow-up results of the pacing to avoid cardiac enlargement (PACE) trial]]></article-title>
<source><![CDATA[Eur J Heart Fail]]></source>
<year>2014</year>
<volume>16</volume>
<page-range>1016-25</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Romero García]]></surname>
<given-names><![CDATA[AR]]></given-names>
</name>
<name>
<surname><![CDATA[Fernández Chelala]]></surname>
<given-names><![CDATA[FI]]></given-names>
</name>
<name>
<surname><![CDATA[Dominguez Peréz]]></surname>
<given-names><![CDATA[RJ]]></given-names>
</name>
<name>
<surname><![CDATA[Santos Hernández]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Arias Salar]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Peculiaridades clínica-epidemiológicas de pacientes sometidos a estimulación cardíaca eléctrica permanente]]></article-title>
<source><![CDATA[Correo Científico Médico]]></source>
<year>2013</year>
<volume>17</volume>
<page-range>443-51</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fang]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[Q]]></given-names>
</name>
<name>
<surname><![CDATA[Chan]]></surname>
<given-names><![CDATA[JY]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Early pacinginduced systolic dyssynchrony is a strong predictor of left ventricular adverse remodeling analysis from the Pacing to Avoid Cardiac Enlargement (PACE) trial]]></article-title>
<source><![CDATA[Int J Cardiol]]></source>
<year>2013</year>
<volume>168</volume>
<page-range>723-8</page-range></nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Curtis]]></surname>
<given-names><![CDATA[AB]]></given-names>
</name>
<name>
<surname><![CDATA[Worley]]></surname>
<given-names><![CDATA[SJ]]></given-names>
</name>
<name>
<surname><![CDATA[Chung]]></surname>
<given-names><![CDATA[ES]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Improvement in Clinical Outcomes With Biventricular Versus Right Ventricular Pacing The BLOCK HF Study]]></article-title>
<source><![CDATA[J Am Coll Cardiol]]></source>
<year>2016</year>
<volume>67</volume>
<page-range>2148-57</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Halperin]]></surname>
<given-names><![CDATA[JL]]></given-names>
</name>
<name>
<surname><![CDATA[Levine]]></surname>
<given-names><![CDATA[GN]]></given-names>
</name>
<name>
<surname><![CDATA[Al-Khatib]]></surname>
<given-names><![CDATA[SM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Further evolution of the ACC/AHA clinical practice guideline recommendation classification system a report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines]]></article-title>
<source><![CDATA[J Am Coll Cardiol]]></source>
<year>2016</year>
<volume>67</volume>
<page-range>1572-4</page-range></nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gillis]]></surname>
<given-names><![CDATA[AM]]></given-names>
</name>
<name>
<surname><![CDATA[Russo]]></surname>
<given-names><![CDATA[AM]]></given-names>
</name>
<name>
<surname><![CDATA[Ellenbogen]]></surname>
<given-names><![CDATA[KA]]></given-names>
</name>
<name>
<surname><![CDATA[ChD]]></surname>
<given-names><![CDATA[Swerdlow]]></given-names>
</name>
<name>
<surname><![CDATA[Olshansky]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Al-Khatib]]></surname>
<given-names><![CDATA[SM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[HRS/ACCF Expert Consensus Statement on Pacemaker Device and Mode Selection]]></article-title>
<source><![CDATA[JACC]]></source>
<year>2012</year>
<volume>60</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>682-703</page-range></nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Slotwiner]]></surname>
<given-names><![CDATA[DJ]]></given-names>
</name>
<name>
<surname><![CDATA[Raitt]]></surname>
<given-names><![CDATA[MH]]></given-names>
</name>
<name>
<surname><![CDATA[Del-Carpio Muñoz]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Mulpuru]]></surname>
<given-names><![CDATA[SK]]></given-names>
</name>
<name>
<surname><![CDATA[Nasser]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Peterson]]></surname>
<given-names><![CDATA[PN]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Impact of Physiologic Pacing Versus Right Ventricular Pacing Among Patients With Left Ventricular Ejection Fraction Greater Than 35 %: A Systematic Review for the 2018 ACC/AHA/HRS Guideline on the Evaluation and Management of Patients With Bradycardia and Cardiac Conduction Delay: A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines and the Heart Rhythm Society]]></article-title>
<source><![CDATA[JACC]]></source>
<year>2019</year>
<volume>74</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>988-1008</page-range></nlm-citation>
</ref>
<ref id="B11">
<label>11</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Casola Crespo]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Casola Crespo]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Ramírez Lana]]></surname>
<given-names><![CDATA[LJ]]></given-names>
</name>
<name>
<surname><![CDATA[Miranda Fragoso]]></surname>
<given-names><![CDATA[AE]]></given-names>
</name>
<name>
<surname><![CDATA[Casola García]]></surname>
<given-names><![CDATA[SM]]></given-names>
</name>
<name>
<surname><![CDATA[Casola Barreto]]></surname>
<given-names><![CDATA[EP]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Registro de implante de marcapasos trece años de experiencia. Rev]]></article-title>
<source><![CDATA[Arch Med Camagüey]]></source>
<year>2016</year>
<volume>20</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>135-44</page-range></nlm-citation>
</ref>
<ref id="B12">
<label>12</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Romero-García]]></surname>
<given-names><![CDATA[AR]]></given-names>
</name>
<name>
<surname><![CDATA[Domínguez-Pérez]]></surname>
<given-names><![CDATA[RJ]]></given-names>
</name>
<name>
<surname><![CDATA[Fernández-Chelala]]></surname>
<given-names><![CDATA[FI]]></given-names>
</name>
<name>
<surname><![CDATA[Santos-Hernández]]></surname>
<given-names><![CDATA[AM]]></given-names>
</name>
<name>
<surname><![CDATA[Padrosa-Santos]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Arias-Salazar]]></surname>
<given-names><![CDATA[WV]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Variables Clínico-Epidemiológicas de la Implantación de Marcapasos Cardíacos en el Hospital Lenin]]></article-title>
<source><![CDATA[Holguín, Cuba]]></source>
<year>2014</year>
<volume>5</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>202-10</page-range></nlm-citation>
</ref>
<ref id="B13">
<label>13</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chávez-González]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Barja]]></surname>
<given-names><![CDATA[LD]]></given-names>
</name>
<name>
<surname><![CDATA[Ortega]]></surname>
<given-names><![CDATA[DF]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Estimulación eléctrica permanente en región septal en pacientes con insuficiencia cardíaca secundaria a estimulación en ápex de ventrículo derecho]]></article-title>
<source><![CDATA[Arch Cardiol Mex]]></source>
<year>2018</year>
<volume>88</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>474-82</page-range></nlm-citation>
</ref>
<ref id="B14">
<label>14</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lange]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Manzolillo]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Parras]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Pozzer]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Pantich]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[La estimulación septal del ventrículo derecho generaría igual disincronía biventricular que la estimulación apical en pacientes con fracción de eyección conservada]]></article-title>
<source><![CDATA[Archivos de cardiología de México]]></source>
<year>2014</year>
<volume>84</volume>
<page-range>183-90</page-range></nlm-citation>
</ref>
<ref id="B15">
<label>15</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Anchante Hernández]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Medina Palomino]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Salazar Cáceres]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Talledo Paredes]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Vega Aponte]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Villanueva Pérez]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comparación entre estimulación cardíaca en tracto de salida y ápex del ventrículo derecho]]></article-title>
<source><![CDATA[Rev Med Hered]]></source>
<year>2013</year>
<volume>24</volume>
<page-range>6-11</page-range></nlm-citation>
</ref>
<ref id="B16">
<label>16</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Funck]]></surname>
<given-names><![CDATA[RC]]></given-names>
</name>
<name>
<surname><![CDATA[Mueller]]></surname>
<given-names><![CDATA[HH]]></given-names>
</name>
<name>
<surname><![CDATA[Lunati]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Characteristics of a large sample of candidates for permanent ventricular pacing included in the Biventricular Pacing for Atrio-ventricular Block to Prevent Cardiac Desynchronization Study (BioPace)]]></article-title>
<source><![CDATA[Europace]]></source>
<year>2014</year>
<volume>16</volume>
<page-range>354-62</page-range></nlm-citation>
</ref>
<ref id="B17">
<label>17</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Brignole]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Botto]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Mont]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Cardiac resynchronization therapy in patients undergoing atrioventricular junction ablation for permanent atrial fibrillation a randomized trial]]></article-title>
<source><![CDATA[Eur Heart J]]></source>
<year>2011</year>
<volume>32</volume>
<page-range>2420-9</page-range></nlm-citation>
</ref>
<ref id="B18">
<label>18</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chan]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Fang]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[Q]]></given-names>
</name>
<name>
<surname><![CDATA[Fung]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Razali]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
<name>
<surname><![CDATA[Azlan]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Biventricular pacing is superior to right ventricular pacing in bradycardia patients with preserved systolic function 2-year results of the PACE trial]]></article-title>
<source><![CDATA[Eur Heart J]]></source>
<year>2011</year>
<volume>32</volume>
<page-range>2533-40</page-range></nlm-citation>
</ref>
<ref id="B19">
<label>19</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Yu]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Chan]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[Q]]></given-names>
</name>
<name>
<surname><![CDATA[Omar]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Yip]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Hussin]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Biventricular pacing in patients with bradycardia and normal ejection fraction]]></article-title>
<source><![CDATA[N Engl J Med]]></source>
<year>2009</year>
<volume>361</volume>
<page-range>2123-34</page-range></nlm-citation>
</ref>
<ref id="B20">
<label>20</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vijayaraman]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Bordachar]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Ellenbogen]]></surname>
<given-names><![CDATA[KA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The Continued Search for Physiological Pacing Where Are We Now]]></article-title>
<source><![CDATA[JACC]]></source>
<year>2017</year>
<volume>69</volume>
<numero>25</numero>
<issue>25</issue>
<page-range>3099-114</page-range></nlm-citation>
</ref>
<ref id="B21">
<label>21</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nielsen]]></surname>
<given-names><![CDATA[JC]]></given-names>
</name>
<name>
<surname><![CDATA[Kristensen]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Andersen]]></surname>
<given-names><![CDATA[HR]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A randomized comparison of atrial and dual chamber pacing in 177 consecutive patients with sick sinus syndrome]]></article-title>
<source><![CDATA[JACC]]></source>
<year>2003</year>
<volume>42</volume>
<page-range>614-23</page-range></nlm-citation>
</ref>
<ref id="B22">
<label>22</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Brignole]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Auricchio]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Baron-Esquivias]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Bordachar]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Boriani]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Breithardt]]></surname>
<given-names><![CDATA[OA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Guía de práctica clínica de la ESC 2013 sobre estimulación cardíaca y terapia de resincronización cardíaca]]></article-title>
<source><![CDATA[Rev Esp Cardiol]]></source>
<year>2014</year>
<volume>67</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>6-14</page-range></nlm-citation>
</ref>
<ref id="B23">
<label>23</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Abdelrahman]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Subzposh]]></surname>
<given-names><![CDATA[FA]]></given-names>
</name>
<name>
<surname><![CDATA[Beer]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Durr]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Naperkowski]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Sun]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Clinical Outcomes of His Bundle Pacing Compared to Right Ventricular Pacing]]></article-title>
<source><![CDATA[JACC]]></source>
<year>2018</year>
<volume>71</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>2319-30</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
