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  <front>
    <journal-meta>
      <journal-id journal-id-type="nlm-ta">Arq Bras Cardiol</journal-id>
      <journal-id journal-id-type="publisher-id">abc</journal-id>
      <journal-title-group>
        <journal-title>Arquivos Brasileiros de Cardiologia</journal-title>
        <abbrev-journal-title abbrev-type="publisher">Arq. Bras. Cardiol.</abbrev-journal-title>
      </journal-title-group>
      <issn pub-type="ppub">0066-782X</issn>
      <issn pub-type="epub">1678-4170</issn>
      <publisher>
        <publisher-name>Sociedade Brasileira de Cardiologia - SBC</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id specific-use="scielo-v3" pub-id-type="publisher-id">jV8f7fxCJ7s8TPJS6gy4F8C</article-id>
      <article-id specific-use="scielo-v2" pub-id-type="publisher-id">S0066-782X2021000200363</article-id>
      <article-id pub-id-type="publisher-id">abc.20200200</article-id>
      <article-id pub-id-type="doi">10.36660/abc.20200200</article-id>
      <article-categories>
        <subj-group subj-group-type="heading">
          <subject>Imagem</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>Correla&#231;&#227;o Angiotomogr&#225;fica-Eletrocardiogr&#225;fica na S&#237;ndrome de Wellens</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <contrib-id contrib-id-type="orcid">0000-0002-0233-0041</contrib-id>
          <name>
            <surname>Fonseca</surname>
            <given-names>Eduardo Kaiser Ururahy Nunes</given-names>
          </name>
          <xref ref-type="aff" rid="aff1">
            <sup>1</sup>
          </xref>
        </contrib>
        <contrib contrib-type="author">
          <contrib-id contrib-id-type="orcid">0000-0002-6139-634X</contrib-id>
          <name>
            <surname>Heringer</surname>
            <given-names>Nevelton</given-names>
            <suffix>Filho</suffix>
          </name>
          <xref ref-type="aff" rid="aff1">
            <sup>1</sup>
          </xref>
        </contrib>
        <contrib contrib-type="author">
          <contrib-id contrib-id-type="orcid">0000-0002-9835-7096</contrib-id>
          <name>
            <surname>Montemor</surname>
            <given-names>Marcelo L.</given-names>
          </name>
          <xref ref-type="aff" rid="aff1">
            <sup>1</sup>
          </xref>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>&#193;vila</surname>
            <given-names>Luiz Francisco Rodrigues de</given-names>
          </name>
          <xref ref-type="aff" rid="aff1">
            <sup>1</sup>
          </xref>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Rochitte</surname>
            <given-names>Carlos Eduardo</given-names>
          </name>
          <xref ref-type="aff" rid="aff1">
            <sup>1</sup>
          </xref>
        </contrib>
      </contrib-group>
      <aff id="aff1">
        <label>1</label>
        <institution content-type="orgname">Universidade de S&#227;o Paulo</institution>
        <institution content-type="orgdiv1">Faculdade de Medicina</institution>
        <institution content-type="orgdiv2">Hospital das Cl&#237;nicas</institution>
        <addr-line>
          <named-content content-type="city">S&#227;o Paulo</named-content>
          <named-content content-type="state">SP</named-content>
        </addr-line>
        <country country="BR">Brasil</country>
        <institution content-type="original">Universidade de S&#227;o Paulo Faculdade de Medicina Hospital das Cl&#237;nicas Instituto do Cora&#231;&#227;o, S&#227;o Paulo, SP - Brasil</institution>
      </aff>
      <author-notes>
        <corresp id="c01"> Correspond&#234;ncia: Eduardo Kaiser Ururahy Nunes Fonseca &#8226; Universidade de S&#227;o Paulo Faculdade de Medicina - InCor - Departamento de imagem - Av. Dr. En&#233;as Carvalho de Aguiar, 44. CEP 05403-900, S&#227;o Paulo, SP &#8211; Brasil E-mail: <email>edukaiser_unf@hotmail.com</email> </corresp>
        <fn fn-type="con">
          <p>Contribui&#231;&#227;o dos autores</p>
          <p>Concep&#231;&#227;o e desenho da pesquisa: Fonseca EKUN, Heringer Filho N, Montemor ML, &#193;vila LFR, Rochitte CE; Obten&#231;&#227;o de dados: Fonseca EKUN, Heringer Filho N, Rochitte CE; An&#225;lise e interpreta&#231;&#227;o dos dados: Fonseca EKUN, Heringer Filho N, &#193;vila LFR, Rochitte CE; Reda&#231;&#227;o do manuscrito: Fonseca EKUN, Heringer Filho N, Montemor ML; Revis&#227;o cr&#237;tica do manuscrito quanto ao conte&#250;do intelectual importante: Fonseca EKUN, Heringer Filho N, Montemor ML, &#193;vila LFR, Rochitte CE.</p>
        </fn>
        <fn fn-type="conflict">
          <p>Potencial conflito de interesses</p>
          <p>Declaro n&#227;o haver conflito de interesses pertinentes.</p>
        </fn>
      </author-notes>
      <pub-date date-type="pub" publication-format="electronic">
        <day>01</day>
        <month>03</month>
        <year>2021</year>
      </pub-date>
      <pub-date date-type="collection" publication-format="electronic">
        <month>02</month>
        <year>2021</year>
      </pub-date>
      <volume>116</volume>
      <issue>2</issue>
      <fpage>363</fpage>
      <lpage>366</lpage>
      <history>
        <date date-type="received">
          <day>26</day>
          <month>11</month>
          <year>2019</year>
        </date>
        <date date-type="rev-recd">
          <day>13</day>
          <month>03</month>
          <year>2020</year>
        </date>
        <date date-type="accepted">
          <day>20</day>
          <month>05</month>
          <year>2020</year>
        </date>
      </history>
      <permissions>
        <license license-type="open-access" xlink:href="https://creativecommons.org/licenses/by/4.0/" xml:lang="en">
          <license-p> This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. </license-p>
        </license>
      </permissions>
      <kwd-group xml:lang="pt">
        <kwd>Eletrocardiografia</kwd>
        <kwd>Vasos Coron&#225;rios</kwd>
        <kwd>Angiografia por Tomografia Computadorizada</kwd>
        <kwd>Infarto do mioc&#225;rdio</kwd>
        <kwd>Angiografia coron&#225;ria</kwd>
      </kwd-group>
      <counts>
        <fig-count count="10"/>
        <table-count count="0"/>
        <equation-count count="0"/>
        <ref-count count="3"/>
        <page-count count="4"/>
      </counts>
    </article-meta>
  </front>
  <body>
    <p>A S&#237;ndrome de Wellens,<sup><xref rid="B1" ref-type="bibr">1</xref></sup> tamb&#233;m conhecida como &#8220;S&#237;ndrome da onda T da Coron&#225;ria Descendente Anterior&#8221; foi descrita em 1982 pelo Dr. Henrick Joan Joost (Hein) Wellens, m&#233;dico holand&#234;s que tamb&#233;m contribuiu com a caracteriza&#231;&#227;o do mecanismo de reentrada na s&#237;ndrome de Wolf Parkinson White.</p>
    <p>Descrita originalmente durante a admiss&#227;o hospitalar (60% &#224; admiss&#227;o e 40% no seguimento) de pacientes apresentando angina inst&#225;vel, foi caracterizada pela ocorr&#234;ncia de 2 padr&#245;es eletrocardiogr&#225;ficos, padr&#227;o A em 25% dos pacientes e B em 75% dos pacientes.</p>
    <p>No padr&#227;o A nota-se a ocorr&#234;ncia de onda T bif&#225;sica nas deriva&#231;&#245;es V2 e V3 podendo ser encontrada de V1 a V6 e no padr&#227;o B nota-se onda T invertida e sim&#233;trica em V2 e V3, ambos padr&#245;es ocorrendo sem a associa&#231;&#227;o de ondas Q ou complexos QS patol&#243;gicos, com progress&#227;o normal da onda R e sem evid&#234;ncia de hipertrofia ventricular.</p>
    <p>Tais achados eletrocardiogr&#225;ficos s&#227;o pouco sens&#237;veis (69%), por&#233;m altamente espec&#237;ficos (89%)<sup><xref rid="B2" ref-type="bibr">2</xref></sup>de doen&#231;a obstrutiva importante do segmento proximal da art&#233;ria coron&#225;ria descendente anterior que, se n&#227;o abordada de forma adequada, pode determinar infarto anterior extenso e alto risco de mortalidade.</p>
    <p>Sendo assim, na vig&#234;ncia de achados eletrocardiogr&#225;ficos da S&#237;ndrome de Wellens &#233; desencorajada a realiza&#231;&#227;o de testes provocativos de isquemia.<sup><xref rid="B3" ref-type="bibr">3</xref></sup></p>
    <p>No nosso servi&#231;o, ao realizarmos a investiga&#231;&#227;o de dois pacientes: paciente (1) masculino, tabagista, com queixa de dor at&#237;pica em repouso intermitente (CCS-IV) que ap&#243;s realiza&#231;&#227;o da angiotomografia de art&#233;rias coron&#225;rias como primeiro teste diagn&#243;stico, apresentou epis&#243;dio de dor, sendo encaminhado para a realiza&#231;&#227;o de eletrocardiograma de 12 deriva&#231;&#245;es que demonstrou padr&#227;o A da S&#237;ndrome Wellens. Paciente (2) feminina, angina CCS2, com hist&#243;ria familiar positiva (m&#227;e infartou aos 35 anos) vem com eletrocardiograma evidenciando o padr&#227;o B de Wellens (<xref rid="f01" ref-type="fig">Figura 1, 1A e 1B</xref>), angiotomografia confirmando os mesmos achados do paciente 1. Ambas imagens nas angiotomografias evidenciam placa segmentar, com sinais de vulnerabilidade determinando obstru&#231;&#227;o proximal importante do segmento proximal da art&#233;ria descendente anterior, prontamente &#224; leitura (<xref rid="f02" ref-type="fig">Figuras 2</xref>, <xref rid="f03" ref-type="fig">3</xref>, <xref rid="f04" ref-type="fig">4</xref> e <xref rid="f05" ref-type="fig">5</xref>). A placa com caracter&#237;sticas de vulnerabilidade apresentava-se parcialmente calcificada, com grande volume, remodelamento positivo e baixa atenua&#231;&#227;o.</p>
    <p>
      <fig id="f01">
        <label>Figura 1</label>
        <caption>
          <title>Imagens dos ECGs de ambos os pacientes, evidenciando os padr&#245;es da s&#237;ndrome de Wellens (Paciente 1 - A / Paciente 2 - B).</title>
        </caption>
        <graphic xlink:href="1678-4170-abc-116-02-0363-00200-gf01.tif"/></fig>
    </p>
    <p>
      <fig id="f02">
        <label>Figura 2</label>
        <caption>
          <title>Reconstru&#231;&#227;o tridimensional (volume rendering) demonstrando importante redu&#231;&#227;o luminal segmento proximal da art&#233;ria descendente anterior em ambos os pacientes (Paciente 1 - A / Paciente 2 - B).</title>
        </caption>
        <graphic xlink:href="1678-4170-abc-116-02-0363-00200-gf02.tif"/></fig>
    </p>
    <p>
      <fig id="f03">
        <label>Figura 4</label>
        <caption>
          <title>Angiotomografia das art&#233;rias coron&#225;rias. Imagem da Esquerda - reconstru&#231;&#227;o curva evidenciando placa mista no segmento proximal da art&#233;ria descendente (setas vermelhas), determinando acentuada redu&#231;&#227;o luminal. Imagem da direita - imagem no plano axial do segmento proximal da art&#233;ria descendente anterior, na topografia da les&#227;o (seta vermelha), demonstrando redu&#231;&#227;o luminal cr&#237;tica no paciente 2.</title>
        </caption>
        <graphic xlink:href="1678-4170-abc-116-02-0363-00200-gf03.tif"/></fig>
    </p>
    <p>
      <fig id="f04">
        <label>Figura 3</label>
        <caption>
          <title>Angiotomografia das art&#233;rias coron&#225;rias. Imagem da Esquerda - reconstru&#231;&#227;o curva evidenciando placa mista no segmento proximal da art&#233;ria descendente (setas vermelhas), determinando acentuada redu&#231;&#227;o luminal. Imagem da direita - imagem no plano axial do segmento proximal da art&#233;ria descendente anterior, na topografia da les&#227;o (seta vermelha), demonstrando redu&#231;&#227;o luminal cr&#237;tica no paciente 1.</title>
        </caption>
        <graphic xlink:href="1678-4170-abc-116-02-0363-00200-gf04.tif"/></fig>
    </p>
    <p>
      <fig id="f05">
        <label>Figura 5</label>
        <caption>
          <title>Cineangiocoronariografia. Imagem acima &#8211; les&#227;o cr&#237;tica no segmento proximal da art&#233;ria descendente, confirmando os achados tomogr&#225;ficos. Imagem abaixo &#8211; imagem ap&#243;s tratamento demonstrando recanaliza&#231;&#227;o efetiva da les&#227;o. (Paciente 1 - A / Paciente 2 - B)</title>
        </caption>
        <graphic xlink:href="1678-4170-abc-116-02-0363-00200-gf05.tif"/></fig>
    </p>
    <p>Ap&#243;s encaminhamento ao setor de emerg&#234;ncia os pacientes obtiveram confirma&#231;&#227;o &#224; cinengiocoronariografia sendo realizada angioplastia com sucesso da art&#233;ria descendente anterior (Figura 6).</p>
    <p>At&#233; onde sabemos, esse foi o primeiro relato da correla&#231;&#227;o eletrocardiograma &#8211; angiotomografia para a S&#237;ndrome de Wellens.</p>
  </body>
  <back>
    <ref-list>
      <title>Refer&#234;ncias</title>
      <ref id="B1">
        <label>1</label>
        <mixed-citation>1. de Zwann C, Bar FW, Wellens HJ: Characteristic electrocardiographic pattern indicating a critical stenosis high in left anterior descending coronary artery in patients admitted because of impending myocardial infarction. Am Heart J 1982;103(4 Pt2):730-6.</mixed-citation>
        <element-citation publication-type="journal">
          <person-group person-group-type="author">
            <name>
              <surname>de Zwann</surname>
              <given-names>C</given-names>
            </name>
            <name>
              <surname>Bar</surname>
              <given-names>FW</given-names>
            </name>
            <name>
              <surname>Wellens</surname>
              <given-names>HJ</given-names>
            </name>
          </person-group>
          <article-title>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>Am Heart J</source>
          <year>1982</year>
          <volume>103</volume>
          <issue>4 Pt2</issue>
          <fpage>730</fpage>
          <lpage>736</lpage>
        </element-citation>
      </ref>
      <ref id="B2">
        <label>2</label>
        <mixed-citation>2. Haines DE, Raabe DS, Gundel WD, Wackers FJ. Anatomic and prognostic significance of new T-wave inversion in unstable angina. Am J Cardiol 1983;52(1):14&#8211;8.</mixed-citation>
        <element-citation publication-type="journal">
          <person-group person-group-type="author">
            <name>
              <surname>Haines</surname>
              <given-names>DE</given-names>
            </name>
            <name>
              <surname>Raabe</surname>
              <given-names>DS</given-names>
            </name>
            <name>
              <surname>Gundel</surname>
              <given-names>WD</given-names>
            </name>
            <name>
              <surname>Wackers</surname>
              <given-names>FJ</given-names>
            </name>
          </person-group>
          <article-title>Anatomic and prognostic significance of new T-wave inversion in unstable angina</article-title>
          <source>Am J Cardiol</source>
          <year>1983</year>
          <volume>52</volume>
          <issue>1</issue>
          <fpage>14</fpage>
          <lpage>18</lpage>
        </element-citation>
      </ref>
      <ref id="B3">
        <label>3</label>
        <mixed-citation>3. Rhinehardt J, Brady WJ, Perron AD, Mattu A. Electrocardiographic manifestations of Wellens syndrome. Am J Emerg Med. 2002 Nov;20(7):638-43.</mixed-citation>
        <element-citation publication-type="journal">
          <person-group person-group-type="author">
            <name>
              <surname>Rhinehardt</surname>
              <given-names>J</given-names>
            </name>
            <name>
              <surname>Brady</surname>
              <given-names>WJ</given-names>
            </name>
            <name>
              <surname>Perron</surname>
              <given-names>AD</given-names>
            </name>
            <name>
              <surname>Mattu</surname>
              <given-names>A</given-names>
            </name>
          </person-group>
          <article-title>Electrocardiographic manifestations of Wellens syndrome</article-title>
          <source>Am J Emerg Med</source>
          <year>2002</year>
          <month>11</month>
          <volume>20</volume>
          <issue>7</issue>
          <fpage>638</fpage>
          <lpage>643</lpage>
        </element-citation>
      </ref>
    </ref-list>
    <fn-group>
      <fn fn-type="other">
        <label/>
        <p>Vincula&#231;&#227;o acad&#234;mica</p>
        <p>N&#227;o h&#225; vincula&#231;&#227;o deste estudo a programas de p&#243;s-gradua&#231;&#227;o.</p>
      </fn>
      <fn fn-type="other">
        <label/>
        <p>Aprova&#231;&#227;o &#233;tica e consentimento informado</p>
        <p>Este artigo n&#227;o cont&#233;m estudos com humanos ou animais realizados por nenhum dos autores.</p>
      </fn>
    </fn-group>
    <fn-group>
      <fn fn-type="supported-by">
        <p><bold>Fontes de financiamento</bold>.O presente estudo n&#227;o teve fontes de financiamento externas.</p>
      </fn>
    </fn-group>
  </back>
  <sub-article article-type="translation" id="TRen" xml:lang="en">
    <front-stub>
      <article-categories>
        <subj-group subj-group-type="heading">
          <subject>Image</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>Radiologic-Electrocardiography Correlation in Wellens Syndrome</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <contrib-id contrib-id-type="orcid">0000-0002-0233-0041</contrib-id>
          <name>
            <surname>Fonseca</surname>
            <given-names>Eduardo Kaiser Ururahy Nunes</given-names>
          </name>
          <xref ref-type="aff" rid="aff1001">
            <sup>1</sup>
          </xref>
        </contrib>
        <contrib contrib-type="author">
          <contrib-id contrib-id-type="orcid">0000-0002-6139-634X</contrib-id>
          <name>
            <surname>Heringer</surname>
            <given-names>Nevelton</given-names>
            <suffix>Filho</suffix>
          </name>
          <xref ref-type="aff" rid="aff1001">
            <sup>1</sup>
          </xref>
        </contrib>
        <contrib contrib-type="author">
          <contrib-id contrib-id-type="orcid">0000-0002-9835-7096</contrib-id>
          <name>
            <surname>Montemor</surname>
            <given-names>Marcelo L.</given-names>
          </name>
          <xref ref-type="aff" rid="aff1001">
            <sup>1</sup>
          </xref>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>&#193;vila</surname>
            <given-names>Luiz Francisco Rodrigues de</given-names>
          </name>
          <xref ref-type="aff" rid="aff1001">
            <sup>1</sup>
          </xref>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Rochitte</surname>
            <given-names>Carlos Eduardo</given-names>
          </name>
          <xref ref-type="aff" rid="aff1001">
            <sup>1</sup>
          </xref>
        </contrib>
      </contrib-group>
      <aff id="aff1001">
        <label>1</label>
        <country country="BR">Brasil</country>
        <institution content-type="original">Universidade de S&#227;o Paulo Faculdade de Medicina Hospital das Cl&#237;nicas Instituto do Cora&#231;&#227;o, S&#227;o Paulo, SP - Brasil</institution>
      </aff>
      <author-notes>
        <corresp id="c01001"><bold>Mailing Address: Eduardo Kaiser Ururahy Nunes Fonseca &#8226;</bold> Universidade de S&#227;o Paulo Faculdade de Medicina - InCor - Departamento de imagem - Av. Dr. En&#233;as Carvalho de Aguiar, 44. Postal Code 05403-900, S&#227;o Paulo, SP &#8211; Brazil E-mail: edukaiser_unf@hotmail.com </corresp>
        <fn fn-type="con">
          <p>Author contributions</p>
          <p>Conception and design of the research: Fonseca EKUN, Heringer Filho N, Montemor ML, &#193;vila LFR, Rochitte CE; Acquisition of data: Fonseca EKUN, Heringer Filho N, Rochitte CE; Analysis and interpretation of the data: Fonseca EKUN, Heringer Filho N, &#193;vila LFR, Rochitte CE; Writing of the manuscript: Fonseca EKUN, Heringer Filho N, Montemor ML; Critical revision of the manuscript for intellectual content: Fonseca EKUN, Heringer Filho N, Montemor ML, &#193;vila LFR, Rochitte CE.</p>
        </fn>
        <fn fn-type="conflict">
          <p>Potential Conflict of Interest</p>
          <p>No potential conflict of interest relevant to this article was reported.</p>
        </fn>
      </author-notes>
      <kwd-group xml:lang="en">
        <kwd>Electrocardiography</kwd>
        <kwd>Coronary Vessels</kwd>
        <kwd>Computed Tomography Angiography</kwd>
        <kwd>Myocardial Infarction</kwd>
        <kwd>Coronary Angiography</kwd>
      </kwd-group>
    </front-stub>
    <body>
      <p>Wellens Syndrome,<sup><xref rid="B1" ref-type="bibr">1</xref></sup> also known as &#8220;Anterior Descending Coronary T-wave syndrome&#8221;, was described in 1982 by Dr. Henrick Joan Joost (Hein) Wellens, a Dutch physician who also contributed to the characterization of the reentry mechanism in Wolff&#8211;Parkinson&#8211;White syndrome (WPWS).</p>
      <p>Originally described during hospital admission (60% at admission and 40% at the follow-up) of patients with unstable angina, it was characterized by the occurrence of 2 electrocardiographic patterns, with pattern A in 25% of patients and B in 75% of patients.</p>
      <p>Pattern A shows the occurrence of biphasic T-wave in leads V2 and V3 and can be found from V1 to V6, whereas pattern B shows inverted and symmetrical T-wave in V2 and V3, with both patterns occurring without the association of Q-waves or pathological QS complexes, with normal R-wave progression and without evidence of ventricular hypertrophy.</p>
      <p>These electrocardiographic findings are not very sensitive (69%) but are highly specific (89%)<sup><xref rid="B2" ref-type="bibr">2</xref></sup> for important obstructive disease in the proximal segment of the anterior descending coronary artery, which if not properly addressed, can determine extensive anterior infarction and high risk of mortality.</p>
      <p>Therefore, the performance of provocative ischemia tests is discouraged in the presence of electrocardiographic findings of Wellens Syndrome.<sup><xref rid="B3" ref-type="bibr">3</xref></sup></p>
      <p>In our service, we conducted the investigation of two patients: patient (1) male gender, smoker, complaining of intermittent atypical pain at rest (CCS-IV) who, after undergoing a coronary artery angiotomography as the first diagnostic test, had an episode of pain, being referred to a 12-lead electrocardiogram that showed pattern A of Wellens Syndrome. Female patient (2), with CCS2 angina, with a positive family history (mother had an infarction at 35 years old) came with an electrocardiogram showing pattern B of Wellens Syndrome (<xref rid="f01001" ref-type="fig">Figure 1, 1A and 1B</xref>), and the angiotomography confirmed the same findings as in patient 1. Both angiotomography images show segmental plaque, with signs of vulnerability determining significant proximal obstruction of the proximal segment of the anterior descending artery, promptly at the reading (<xref rid="f02001" ref-type="fig">Figures 2</xref>, <xref rid="f03001" ref-type="fig">3</xref>, <xref rid="f04001" ref-type="fig">4</xref> and <xref rid="f05001" ref-type="fig">5</xref>). The plaque with characteristics of vulnerability was partially calcified, showing a large volume, positive remodeling and low attenuation.</p>
      <p>
        <fig id="f01001">
          <label>Figure 1</label>
          <caption>
            <title>&#8211; ECG images of both patients, showing the patterns of Wellens syndrome (Patient 1 - A / Patient 2 - B).</title>
          </caption>
          <graphic xlink:href="1678-4170-abc-116-02-0363-00200-gf01-en.tif"/></fig>
      </p>
      <p>
        <fig id="f02001">
          <label>Figure 2</label>
          <caption>
            <title>&#8211; Three-dimensional reconstruction (volume-rendering technique) showing important luminal reduction in the proximal segment of the anterior descending artery in both patients (Patient 1 - A / Patient 2 - B).</title>
          </caption>
          <graphic xlink:href="1678-4170-abc-116-02-0363-00200-gf02-en.tif"/></fig>
      </p>
      <p>
        <fig id="f03001">
          <label>Figure 4</label>
          <caption>
            <title>Angiotomography of the coronary arteries. Left image - curved reconstruction showing mixed plaque in the proximal segment of the descending artery (red arrows), resulting in marked luminal reduction. Right image - axial image of the proximal segment of the anterior descending artery, on the lesion topography (red arrow), showing critical luminal reduction in patient 2.</title>
          </caption>
          <graphic xlink:href="1678-4170-abc-116-02-0363-00200-gf03-en.tif"/></fig>
      </p>
      <p>
        <fig id="f04001">
          <label>Figure 3</label>
          <caption>
            <title>&#8211; Angiotomography of the coronary arteries. Left image - curved reconstruction showing mixed plaque in the proximal segment of the descending artery (red arrows), resulting in marked luminal reduction. Right image - axial image of the proximal segment of the anterior descending artery, on the lesion topography (red arrow), showing critical luminal reduction in patient 1.</title>
          </caption>
          <graphic xlink:href="1678-4170-abc-116-02-0363-00200-gf04-en.tif"/></fig>
      </p>
      <p>
        <fig id="f05001">
          <label>Figure 5</label>
          <caption>
            <title>Coronary angiography. Top image - critical lesion in the proximal segment of the descending artery, confirming the tomographic findings. Bottom image &#8211; post-treatment image showing effective recanalization of the lesion. (Patient 1 - A / Patient 2 - B)</title>
          </caption>
          <graphic xlink:href="1678-4170-abc-116-02-0363-00200-gf05-en.tif"/></fig>
      </p>
      <p>After being referred to the emergency department, the patients&#8217; condition was confirmed at the coronary angiography, and an anterior descending artery angioplasty was successfully performed (Figure 6).</p>
      <p>To the best of our knowledge, this is the first report of an electrocardiogram-angiotomography correlation for Wellens Syndrome.</p>
    </body>
    <back>
      <fn-group>
        <fn fn-type="other">
          <p>Study Association</p>
          <p>This study is not associated with any thesis or dissertation work.</p>
        </fn>
        <fn fn-type="other">
          <label/>
          <p>Ethics approval and consent to participate</p>
          <p>This article does not contain any studies with human participants or animals performed by any of the authors.</p>
        </fn>
      </fn-group>
      <fn-group>
        <fn fn-type="supported-by">
          <p><bold>Sources of Funding</bold>.There were no external funding sources for this study.</p>
        </fn>
      </fn-group>
    </back>
  </sub-article>
</article>
