<?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>S0864-03002021000500003</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Factores asociados al síndrome de Wellens en pacientes con síndrome coronario agudo sin elevación del segmento ST]]></article-title>
<article-title xml:lang="en"><![CDATA[Factors associated to Wellens' syndrome in patients with acute coronary syndrome without ST-segment elevation]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[de la Torre Fonseca]]></surname>
<given-names><![CDATA[Luis Mariano]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rojas Velázquez]]></surname>
<given-names><![CDATA[Jesús Miguel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Giralt Herrera]]></surname>
<given-names><![CDATA[Alejandro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Echevarría Sifontes]]></surname>
<given-names><![CDATA[Lila A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Clínico-Quirúrgico Comandante Manuel Fajardo  ]]></institution>
<addr-line><![CDATA[ La Habana]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<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>12</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<volume>40</volume>
<numero>4</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0864-03002021000500003&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0864-03002021000500003&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0864-03002021000500003&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción: El síndrome de Wellens constituye un equivalente del síndrome coronario agudo con elevación del segmento ST. Este incluye dos patrones electrocardiográficos que sugieren lesión crítica de la arteria descendente anterior.  Objetivo:  Evaluar probables factores asociados al síndrome de Wellens en pacientes con síndrome coronario agudo sin elevación del segmento ST y lesiones coronarias significativas en la arteria descendente anterior.  Material y métodos:  Se realizó un estudio observacional, analítico, transversal en pacientes con diagnóstico de síndrome coronario agudo sin elevación del ST y lesión significativa en la arteria descendente anterior, comprobada mediante coronariografía, ingresados en la unidad de cuidados coronarios intensivos del Hospital Clínico-Quirúrgico Manuel Fajardo entre el 2016 y 2019.  Resultados:  La edad media fue de 66 años, predominó el sexo masculino (53,9 %) y el antecedente de hipertensión arterial (89,5 %). Los pacientes con síndrome de Wellens tuvieron un significativo menor porcentaje de antecedente de cardiopatía isquémica (58,1 % vs. 84,8 %; p = 0,012). Además, el síndrome arrojó asociación estadísticamente muy significativa con la condición de fumador activo (51,2 % vs. 15,2 %; p &lt; 0,01). No se encontró relación estadística significativa entre el síndrome de Wellens y el resultado angiográfico.  Conclusiones:  La presencia de los patrones electrocardiográficos del síndrome de Wellens se asocia con el hábito tabáquico en pacientes con síndrome coronario agudo sin elevación del segmento ST y lesiones coronarias en la arteria descendente anterior, y su ausencia se asocia con el antecedente de cardiopatía isquémica en el mismo subgrupo de individuos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction: Wellens' syndrome is equivalent to acute coronary syndrome with ST-segment elevation. It includes two electrocardiographic patterns suggesting a critical lesion in the anterior descending artery.  Objective:  Evaluate probable factors associated to Wellens' syndrome in patients with acute coronary syndrome without ST-segment elevation and significant coronary lesions in the anterior descending artery.  Methods:  A cross-sectional observational analytical study was conducted of patients diagnosed with acute coronary syndrome without ST-segment elevation and significant lesion in the anterior descending artery verified by coronary arteriography, admitted to the intensive coronary care unit at Manuel Fajardo Clinical Surgical Hospital in the period 2016-2019.  Results:  Mean age was 66 years, with a predominance of the male sex (53.9%) and a history of hypertension (89.5%). Patients with Wellens' syndrome had a significantly lower percentage of ischemic heart disease antecedents (58.1% vs. 84.8%; p = 0.012). A very significant statistical association was observed between the syndrome and active smoking (51.2% vs. 15.2%; p &lt; 0.01). A significant statistical relationship was not found between Wellens' syndrome and angiographic results.  Conclusions:  The presence of electrocardiographic patterns of Wellens' syndrome is associated to smoking in patients with acute coronary syndrome without ST-segment elevation and coronary lesions in the anterior descending artery, whereas their absence is associated to a history of ischemic heart disease in the same subgroup of individuals.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[infarto de miocardio]]></kwd>
<kwd lng="es"><![CDATA[isquemia miocárdica]]></kwd>
<kwd lng="es"><![CDATA[síndrome coronario agudo]]></kwd>
<kwd lng="es"><![CDATA[síndrome de Wellens]]></kwd>
<kwd lng="es"><![CDATA[angina inestable]]></kwd>
<kwd lng="es"><![CDATA[electrocardiografía]]></kwd>
<kwd lng="en"><![CDATA[myocardial infarction]]></kwd>
<kwd lng="en"><![CDATA[myocardial ischemia]]></kwd>
<kwd lng="en"><![CDATA[acute coronary syndrome]]></kwd>
<kwd lng="en"><![CDATA[Wellens' syndrome]]></kwd>
<kwd lng="en"><![CDATA[unstable angina]]></kwd>
<kwd lng="en"><![CDATA[electrocardiography]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<collab>GBD</collab>
<article-title xml:lang=""><![CDATA[Global, regional, and national age-sex specific all-cause and cause-specific mortality for 282 causes of death in 195 countries and territories, 1980-2017: a systematic analysis for the Global Burden of Disease Study, 2017]]></article-title>
<source><![CDATA[Lancet]]></source>
<year>2018</year>
<volume>392</volume>
<page-range>1736-88</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mann]]></surname>
<given-names><![CDATA[DL]]></given-names>
</name>
<name>
<surname><![CDATA[Zipes]]></surname>
<given-names><![CDATA[DP]]></given-names>
</name>
<name>
<surname><![CDATA[Libby]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Bonow]]></surname>
<given-names><![CDATA[RO]]></given-names>
</name>
<name>
<surname><![CDATA[Braunwald]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<source><![CDATA[Braunwald: Tratado de Cardiología. Texto de Medicina Cardiovascular]]></source>
<year>2016</year>
<edition>10ma</edition>
<publisher-loc><![CDATA[Barcelona ]]></publisher-loc>
<publisher-name><![CDATA[Elsevier]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Thygesen]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Alpert]]></surname>
<given-names><![CDATA[JS]]></given-names>
</name>
<name>
<surname><![CDATA[Jaffe]]></surname>
<given-names><![CDATA[AS]]></given-names>
</name>
<name>
<surname><![CDATA[Chaitman]]></surname>
<given-names><![CDATA[BR]]></given-names>
</name>
<name>
<surname><![CDATA[Bax]]></surname>
<given-names><![CDATA[JJ]]></given-names>
</name>
<name>
<surname><![CDATA[Morrow]]></surname>
<given-names><![CDATA[DA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Consenso ESC 2018 sobre la cuarta definición universal del infarto de miocardio]]></article-title>
<source><![CDATA[Rev Esp Cardiol]]></source>
<year>2019</year>
<volume>72</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>e1-e27</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[de Zwaan]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Bar]]></surname>
<given-names><![CDATA[FW]]></given-names>
</name>
<name>
<surname><![CDATA[Wellens]]></surname>
<given-names><![CDATA[HJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Characteristic electrocardiographic pattern indicating a critical stenosis high in left anterior descending coronary artery in patients admitted because of impending myocardial infarction]]></article-title>
<source><![CDATA[Am Heart J]]></source>
<year>1982</year>
<volume>103</volume>
<page-range>730-6</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[Carvajal]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Ardila]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Síndrome de Wellens: reconociendo el peligro]]></article-title>
<source><![CDATA[Rev Colomb Cardiol]]></source>
<year>2015</year>
<volume>22</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>244-8</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="">
<collab>Dirección de Registros médicos y estadísticas de salud</collab>
<source><![CDATA[Anuario Estadístico de Salud 2019]]></source>
<year>2020</year>
<publisher-loc><![CDATA[Cuba ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[de Luna]]></surname>
<given-names><![CDATA[AB]]></given-names>
</name>
<name>
<surname><![CDATA[Zareba]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
<name>
<surname><![CDATA[Fiol]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Nikus]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Birnbaum]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Baranowski]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Breithardt]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Wellen]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Negative T wave in ischemic heart disease: a consensus article]]></article-title>
<source><![CDATA[Ann Noninvasive Electrocardiol]]></source>
<year>2014</year>
<volume>19</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>426-41</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[Migliore]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Zorzi]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Marra]]></surname>
<given-names><![CDATA[MP]]></given-names>
</name>
<name>
<surname><![CDATA[Basso]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Corbetti]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[De Lazzari]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Myocardial edema underlies dynamic T-wave inversion (Wellens' ECG pattern) in patients with reversible left ventricular dysfunction]]></article-title>
<source><![CDATA[Heart Rhythm]]></source>
<year>2011</year>
<volume>8</volume>
<page-range>1629-34</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[Abulaiti]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Aini]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Xu]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Song]]></surname>
<given-names><![CDATA[Z]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A special case of Wellens´ syndrome]]></article-title>
<source><![CDATA[J Cardiovasc Dis Res]]></source>
<year>2013</year>
<volume>4</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>51-4</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[de Zwann]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Bar]]></surname>
<given-names><![CDATA[FW]]></given-names>
</name>
<name>
<surname><![CDATA[Janssen]]></surname>
<given-names><![CDATA[JH]]></given-names>
</name>
<name>
<surname><![CDATA[Cheriex]]></surname>
<given-names><![CDATA[EC]]></given-names>
</name>
<name>
<surname><![CDATA[Dassen]]></surname>
<given-names><![CDATA[WR]]></given-names>
</name>
<name>
<surname><![CDATA[Brugada]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Angiographic and clinical characteristics of patients with unstable angina showing an ECG pattern indicating critical narrowing of the proximal LAD coronary artery]]></article-title>
<source><![CDATA[Am Heart J]]></source>
<year>1989</year>
<volume>117</volume>
<page-range>657-65</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[Tandy]]></surname>
<given-names><![CDATA[TK]]></given-names>
</name>
<name>
<surname><![CDATA[Bottomy]]></surname>
<given-names><![CDATA[DP]]></given-names>
</name>
<name>
<surname><![CDATA[Lewis]]></surname>
<given-names><![CDATA[JG]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Wellens' syndrome]]></article-title>
<source><![CDATA[Ann Emerg Med]]></source>
<year>1999</year>
<volume>33</volume>
<page-range>347-51</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[Kardesoglu]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Celik]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Cebeci]]></surname>
<given-names><![CDATA[BS]]></given-names>
</name>
<name>
<surname><![CDATA[Cingozba]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Dincturk]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Demiralp]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Wellens´sndrome: a case report]]></article-title>
<source><![CDATA[J Int Med Res]]></source>
<year>2003</year>
<volume>31</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>585-90</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[Haines]]></surname>
<given-names><![CDATA[DE]]></given-names>
</name>
<name>
<surname><![CDATA[Raabe]]></surname>
<given-names><![CDATA[DS]]></given-names>
</name>
<name>
<surname><![CDATA[Gundel]]></surname>
<given-names><![CDATA[WD]]></given-names>
</name>
<name>
<surname><![CDATA[Wackers]]></surname>
<given-names><![CDATA[FJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Anatomic and prognostic significance of new T-wave inversion in unstable angina]]></article-title>
<source><![CDATA[Am J Cardiol]]></source>
<year>1983</year>
<volume>52</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>14-8</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[de la Torre]]></surname>
<given-names><![CDATA[LM]]></given-names>
</name>
<name>
<surname><![CDATA[Mederos]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Pérez]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Caracterización del síndrome de Wellens y su relación como predictor de obstrucción grave de la arteria descendente anterior. Unidad de Cuidados Coronarios Intensivos Hospital Manuel Fajardo 2016-2017]]></article-title>
<source><![CDATA[CorSalud]]></source>
<year>2019</year>
<volume>11</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>271-7</page-range></nlm-citation>
</ref>
<ref id="B15">
<label>15</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bayés de Luna]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<source><![CDATA[Bases de la electrocardiografía. De las variantes de la normalidad a los patrones diagnósticos (III): Isquemia, lesión y necrosis]]></source>
<year>2007</year>
<publisher-loc><![CDATA[Barcelona ]]></publisher-loc>
<publisher-name><![CDATA[Prous Science]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B16">
<label>16</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[de Winter]]></surname>
<given-names><![CDATA[RJ]]></given-names>
</name>
<name>
<surname><![CDATA[Verouden]]></surname>
<given-names><![CDATA[NJ]]></given-names>
</name>
<name>
<surname><![CDATA[Wellens]]></surname>
<given-names><![CDATA[HJ]]></given-names>
</name>
<name>
<surname><![CDATA[Wilde]]></surname>
<given-names><![CDATA[AA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A New ECG Sign of Proximal LAD Occlusion]]></article-title>
<source><![CDATA[N Engl J Med]]></source>
<year>2008</year>
<volume>359</volume>
<page-range>2071-3</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[de la Torre]]></surname>
<given-names><![CDATA[LM]]></given-names>
</name>
<name>
<surname><![CDATA[Pérez]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Echavarría]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Mederos]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Rojas-Velázquez]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Machín-Legón]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Patrón de "de Winter" en paciente con síndrome coronario agudo sin elevación del segmento ST]]></article-title>
<source><![CDATA[CorSalud]]></source>
<year>2019</year>
<volume>11</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>332-6</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[Ramírez]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Síndrome de Wellens, un diagnóstico inusual y ominoso (Reporte de Caso)]]></article-title>
<source><![CDATA[Rev Med Cos Cen]]></source>
<year>2016</year>
<numero>619</numero>
<issue>619</issue>
<page-range>329-32</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[Jaiswal]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Boudreau]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[An incidental case of Wellens' síndrome in a community emergency department]]></article-title>
<source><![CDATA[World J Emerg Med]]></source>
<year>2016</year>
<volume>7</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>153-6</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[Pellizzón]]></surname>
<given-names><![CDATA[OA]]></given-names>
</name>
<name>
<surname><![CDATA[Andreani]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Najenson]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Síndrome de Wellens. Alto riesgo electrocardiográfico de infarto agudo de miocardio]]></article-title>
<source><![CDATA[Rev Fed Arg Cardiol]]></source>
<year>2015</year>
<volume>44</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>114-5</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[Valle]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[González]]></surname>
<given-names><![CDATA[CA]]></given-names>
</name>
<name>
<surname><![CDATA[Bandera]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Presentaciones electrocardiográficas atípicas en pacientes con síntomas isquémicos, tiempo de cambiar la estrategia]]></article-title>
<source><![CDATA[Rev Cubana Cardiol Cir Cardiovasc]]></source>
<year>2017</year>
<volume>24</volume>
<numero>3</numero>
<issue>3</issue>
</nlm-citation>
</ref>
<ref id="B22">
<label>22</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dobben]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Lattimore]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Welch]]></surname>
<given-names><![CDATA[JL]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Heart disease and subtle ECG findings: A case of Wellens' síndrome]]></article-title>
<source><![CDATA[Visual Journal of Emergency Medicine]]></source>
<year>2017</year>
<volume>9</volume>
<page-range>47-8</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[Kannan]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Figueredo]]></surname>
<given-names><![CDATA[VM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Wellens' Syndrome]]></article-title>
<source><![CDATA[N Engl J Med]]></source>
<year>2015</year>
<volume>372</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>66</page-range></nlm-citation>
</ref>
<ref id="B24">
<label>24</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mansour]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Chammas]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Charif]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Mansour]]></surname>
<given-names><![CDATA[MJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Uncommon Variant of Wellens' Syndrome: A Case Report and Review of Literature]]></article-title>
<source><![CDATA[Advanced Emergency Medicine]]></source>
<year>2017</year>
<volume>6</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>1-4</page-range></nlm-citation>
</ref>
<ref id="B25">
<label>25</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Paredes]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Bittner]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Vergara]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Dolor torácico y alteración electrocardiográfica]]></article-title>
<source><![CDATA[Rev Chil Cardiol]]></source>
<year>2017</year>
<volume>36</volume>
<page-range>154-7</page-range></nlm-citation>
</ref>
<ref id="B26">
<label>26</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ozdemir]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Cimilli Ozturk]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Eyinc]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Wellens' Syndrome -Report of two cases]]></article-title>
<source><![CDATA[Turk J Emerg Med]]></source>
<year>2016</year>
<volume>15</volume>
<page-range>179-81</page-range></nlm-citation>
</ref>
<ref id="B27">
<label>27</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Patel]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Alattar]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Koneru]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[ST-Elevation myocardial infarction after pharmacologic persantine stress test in a patient with wellens' syndrome]]></article-title>
<source><![CDATA[Case Rep Emerg Med]]></source>
<year>2014</year>
<volume>2014</volume>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
