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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 pub-id-type="publisher-id" specific-use="scielo-v3">pqRpXv9BHqJ5ZhWDHW8H8sC</article-id>
      <article-id pub-id-type="publisher-id" specific-use="scielo-v2">S0066-782X2019000900444</article-id>
      <article-id pub-id-type="doi">10.5935/abc.20190160</article-id>
      <article-categories>
        <subj-group subj-group-type="heading">
          <subject>Imagem</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>Double-Inlet Single Ventricle with Malposed Great Arteries</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <contrib-id contrib-id-type="orcid">0000-0002-4902-632X</contrib-id>
          <name>
            <surname>Andrade</surname>
            <given-names>Paulo</given-names>
          </name>
          <xref ref-type="aff" rid="aff1"/>
          <xref ref-type="corresp" rid="c1"/>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Santos</surname>
            <given-names>Danilo</given-names>
          </name>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Moreira</surname>
            <given-names>Magna</given-names>
          </name>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Almeida</surname>
            <given-names>Adail</given-names>
          </name>
          <xref ref-type="aff" rid="aff1">1</xref>
        </contrib>
        <aff id="aff1">
          <institution content-type="orgname">Hospital UNIMEC</institution>
          <institution content-type="orgdiv1">Cardiologia</institution>
          <addr-line>
            <city>Vitoria da Conquista</city>
            <state>BA</state>
          </addr-line>
          <country country="BR">Brazil</country>
          <institution content-type="original">Hospital UNIMEC - Cardiologia, Vitoria da Conquista, BA - Brazil</institution>
        </aff>
      </contrib-group>
      <author-notes>
        <corresp id="c1"><bold>Mailing Address: Paulo Yuri Andrade,</bold> Hospital UNIMEC - Cardiologia - Rua Goes Calmon, 284. Postal Code 45028-706, Vitoria da Conquista, BA - Brazil. E-mail: <email>yurimed1@hotmail.com</email>
				</corresp>
        <fn fn-type="con">
          <p>
            <bold>Author contributions</bold>
          </p>
          <p>Conception and design of the research: Andrade P; Acquisition of data: Almeida A; Analysis and interpretation of the data: Santos D, Moreira M.</p>
        </fn>
        <fn fn-type="conflict">
          <p>
            <bold>Potential Conflict of Interest</bold>
          </p>
          <p>No potential conflict of interest relevant to this article was reported.</p>
        </fn>
      </author-notes>
      <pub-date date-type="pub" publication-format="electronic">
        <day>10</day>
        <month>10</month>
        <year>2019</year>
      </pub-date>
      <pub-date date-type="collection" publication-format="electronic">
        <month>09</month>
        <year>2019</year>
      </pub-date>
      <volume>113</volume>
      <issue>3</issue>
      <fpage>444</fpage>
      <lpage>446</lpage>
      <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="en">
        <title>Keywords</title>
        <kwd>Transposition of great vessels/ surgery</kwd>
        <kwd>Mitral Valve Insufficiency</kwd>
        <kwd>Diagnosis, Imaging</kwd>
        <kwd>Echocardiography, Doppler/ methods</kwd>
        <kwd>Aged</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body>
    <p>A 62-year-old man came to the Echocardiography Service with a history of arterial hypertension and systolic murmur in the mitral area. At the subsequent evaluation, the patient reported dyspnea and fatigue on moderate exertion, but without an impact on social life. Peripheral oxygen saturation at rest ranged from 95% to 98%; extremities were warm and perfused, with no signs of peripheral hypoperfusion; cyanosis and digital clubbing were absent.</p>
    <p>The echocardiogram disclosed a case of levocardia, with the presence of a double-inlet single ventricle with transposition of the great arteries (<xref ref-type="fig" rid="f1">Figures 1</xref>, <xref ref-type="fig" rid="f2">2</xref> and <xref ref-type="fig" rid="f3">3</xref>), with <italic>situs solitus</italic>, enlargement of the atrial chambers associated with significant mitral regurgitation due to annulus dilatation.</p>
    <p>
      <fig id="f1">
        <label>Figure 1</label>
        <caption>
          <title>Transthoracic echocardiography: apical view, showing single ventricle and no evidence of recorded interventricular septal tissue. 254x190mm (96x96 DPI).</title>
        </caption>
        <graphic xlink:href="1678-4170-abc-113-03-0444-90160-gf01.jpg"/></fig>
    </p>
    <p>
      <fig id="f2">
        <label>Figure 2</label>
        <caption>
          <title>Transthoracic echocardiography: apical view, demonstrating two atrioventricular valves, interatrial septum and mitral regurgitation. 361x270mm (72x72 DPI).</title>
        </caption>
        <graphic xlink:href="1678-4170-abc-113-03-0444-90160-gf02.jpg"/></fig>
    </p>
    <p>
      <fig id="f3">
        <label>Figure 3</label>
        <caption>
          <title>Long axis, parasternal view showing the transposition of the great arteries. 254x190mm (96x96 DPI).</title>
        </caption>
        <graphic xlink:href="1678-4170-abc-113-03-0444-90160-gf03.jpg"/></fig>
    </p>
    <p>The anatomical preservation of the two atrioventricular valves was observed, as shown in <xref ref-type="fig" rid="f1">Figure 1</xref>. It was not possible to define the type of ventricle from a morphological perspective, but increased dimensions and moderate contractile dysfunction were observed. The presence of pulmonary stenosis with a maximum gradient of 56 mmHg was observed, as depicted in <xref ref-type="fig" rid="f4">Figure 4</xref>.</p>
    <p>
      <fig id="f4">
        <label>Figure 4</label>
        <caption>
          <title>Pulmonary gradient. 254x190 mm (96x6 DPI).</title>
        </caption>
        <graphic xlink:href="1678-4170-abc-113-03-0444-90160-gf04.jpg"/></fig>
    </p>
    <p>The single ventricle refers to an uncommon condition that corresponds to 1.5% of congenital heart diseases, in which a single pumping chamber receives the inflow of the two atria,<xref ref-type="bibr" rid="B1">1</xref><sup>,</sup><xref ref-type="bibr" rid="B2">2</xref> being uncommon in oligo- or asymptomatic elderly individuals, without previous surgical correction. A second rudimentary chamber may be present, but there is no functional entry.<xref ref-type="bibr" rid="B1">1</xref> Based on the morphology, location and the trabeculation pattern of the pumping and rudimentary chambers, the heart is referred to as right, left or undetermined univentricular heart,<xref ref-type="bibr" rid="B3">3</xref> as in the present report. The most common form of single ventricle is the left ventricular type, where the ventricle connections are variable;<xref ref-type="bibr" rid="B4">4</xref> in this case, there was also transposition of the large vessels.</p>
    <p>The echocardiography was essential for the diagnosis of double-inlet single ventricle, but it is not always possible to establish the type of ventricle, i.e., whether it is right or left, since it becomes difficult to be certain there is no second rudimentary ventricle. In these cases, magnetic resonance imaging is required for diagnostic complementation.</p>
  </body>
  <back>
    <fn-group>
      <fn fn-type="financial-disclosure">
        <p><bold>Sources of Funding</bold> There were no external funding sources for this study.</p>
      </fn>
      <fn fn-type="other">
        <p><bold>Study Association</bold> This study is not associated with any thesis or dissertation work.</p>
      </fn>
    </fn-group>
    <ref-list>
      <title>References</title>
      <ref id="B1">
        <label>1</label>
        <mixed-citation>1 Emrecan Bilgein, Kestelli Mert, Yilik Levent, Laf&#231;i Banu, &#214;zs&#246;yler Ibrahim, G&#252;rb&#252;z Ali et al. Um sistema de ventr&#237;culo pulmonar produzindo press&#227;o puls&#225;til em &#250;nico ventr&#237;culo: modelo experimental. Rev Bras Cir Cardiovasc. 2006;21(3):324-7.</mixed-citation>
        <element-citation publication-type="journal">
          <person-group person-group-type="author">
            <name>
              <surname>Bilgein</surname>
              <given-names>Emrecan</given-names>
            </name>
            <name>
              <surname>Mert</surname>
              <given-names>Kestelli</given-names>
            </name>
            <name>
              <surname>Levent</surname>
              <given-names>Yilik</given-names>
            </name>
            <name>
              <surname>Banu</surname>
              <given-names>Laf&#231;i</given-names>
            </name>
            <name>
              <surname>Ibrahim</surname>
              <given-names>&#214;zs&#246;yler</given-names>
            </name>
            <name>
              <surname>Ali</surname>
              <given-names>G&#252;rb&#252;z</given-names>
            </name>
            <etal/>
          </person-group>
          <article-title>Um sistema de ventr&#237;culo pulmonar produzindo press&#227;o puls&#225;til em &#250;nico ventr&#237;culo: modelo experimental</article-title>
          <source>Rev Bras Cir Cardiovasc</source>
          <year>2006</year>
          <volume>21</volume>
          <issue>3</issue>
          <fpage>324</fpage>
          <lpage>327</lpage>
        </element-citation>
      </ref>
      <ref id="B2">
        <label>2</label>
        <mixed-citation>2 Mozaffarian D, Benjamin EJ, Go AS, Arnet DK, Blaha MJ, Cushman M, et al. heart disease and stroke statistic - 2016 Update: A report from the american heart association. Circulation. 2016;13(4):e38-360.</mixed-citation>
        <element-citation publication-type="journal">
          <person-group person-group-type="author">
            <name>
              <surname>Mozaffarian</surname>
              <given-names>D</given-names>
            </name>
            <name>
              <surname>Benjamin</surname>
              <given-names>EJ</given-names>
            </name>
            <name>
              <surname>Go</surname>
              <given-names>AS</given-names>
            </name>
            <name>
              <surname>Arnet</surname>
              <given-names>DK</given-names>
            </name>
            <name>
              <surname>Blaha</surname>
              <given-names>MJ</given-names>
            </name>
            <name>
              <surname>Cushman</surname>
              <given-names>M</given-names>
            </name>
            <etal/>
          </person-group>
          <article-title>heart disease and stroke statistic - 2016 Update: A report from the american heart association</article-title>
          <source>Circulation</source>
          <year>2016</year>
          <volume>13</volume>
          <issue>4</issue>
          <fpage>e38</fpage>
          <lpage>360</lpage>
        </element-citation>
      </ref>
      <ref id="B3">
        <label>3</label>
        <mixed-citation>3 Fernandez Pineda L, Cazzaniga M, Villagra F, Diez Balda JI,Daghero F, Herraiz Sarachaga I.. La operacion de Glenn en 100 casos con cardiopatias congenitas complejas: factores determinantes del resultado quirurgico. Rev Esp Cardiol. 2001; 54(9):1061-74.</mixed-citation>
        <element-citation publication-type="journal">
          <person-group person-group-type="author">
            <name>
              <surname>Fernandez Pineda</surname>
              <given-names>L</given-names>
            </name>
            <name>
              <surname>Cazzaniga</surname>
              <given-names>M</given-names>
            </name>
            <name>
              <surname>Villagra</surname>
              <given-names>F</given-names>
            </name>
            <name>
              <surname>Diez Balda</surname>
              <given-names>JI</given-names>
            </name>
            <name>
              <surname>Daghero</surname>
              <given-names>F</given-names>
            </name>
            <name>
              <surname>Herraiz Sarachaga</surname>
              <given-names>I</given-names>
            </name>
          </person-group>
          <article-title>La operacion de Glenn en 100 casos con cardiopatias congenitas complejas: factores determinantes del resultado quirurgico</article-title>
          <source>Rev Esp Cardiol</source>
          <year>2001</year>
          <volume>54</volume>
          <issue>9</issue>
          <fpage>1061</fpage>
          <lpage>1074</lpage>
        </element-citation>
      </ref>
      <ref id="B4">
        <label>4</label>
        <mixed-citation>4 Checchia P, McGuire J, Morrow S,Daher N, Huddieston C, Levy F. Risk assessment scoring system predicts survival following the norwood procedure Pediatr Cardiol. 2006;27(1):62 (2006) 27: 62.</mixed-citation>
        <element-citation publication-type="journal">
          <person-group person-group-type="author">
            <name>
              <surname>Checchia</surname>
              <given-names>P</given-names>
            </name>
            <name>
              <surname>McGuire</surname>
              <given-names>J</given-names>
            </name>
            <name>
              <surname>Morrow</surname>
              <given-names>S</given-names>
            </name>
            <name>
              <surname>Daher</surname>
              <given-names>N</given-names>
            </name>
            <name>
              <surname>Huddieston</surname>
              <given-names>C</given-names>
            </name>
            <name>
              <surname>Levy</surname>
              <given-names>F</given-names>
            </name>
          </person-group>
          <article-title>Risk assessment scoring system predicts survival following the norwood procedure</article-title>
          <source>Pediatr Cardiol</source>
          <year>2006</year>
          <volume>27</volume>
          <issue>1</issue>
          <fpage>62</fpage>
          <lpage>62</lpage>
          <comment>(2006) 27: 62</comment>
        </element-citation>
      </ref>
    </ref-list>
  </back>
  <sub-article article-type="translation" id="s1" xml:lang="pt">
    <front-stub>
      <article-categories>
        <subj-group subj-group-type="heading">
          <subject>Imagem</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>Ventr&#237;culo &#218;nico com Dupla Via de Entrada e Grandes Vasos Malposicionados</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <contrib-id contrib-id-type="orcid">0000-0002-4902-632X</contrib-id>
          <name>
            <surname>Andrade</surname>
            <given-names>Paulo</given-names>
          </name>
          <xref ref-type="aff" rid="aff2"/>
          <xref ref-type="corresp" rid="c2"/>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Santos</surname>
            <given-names>Danilo</given-names>
          </name>
          <xref ref-type="aff" rid="aff2"/>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Moreira</surname>
            <given-names>Magna</given-names>
          </name>
          <xref ref-type="aff" rid="aff2"/>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Almeida</surname>
            <given-names>Adail</given-names>
          </name>
          <xref ref-type="aff" rid="aff2"/>
        </contrib>
        <aff id="aff2">
          <institution content-type="original">Hospital UNIMEC - Cardiologia, Vitoria da Conquista, BA - Brasil</institution>
        </aff>
      </contrib-group>
      <author-notes>
        <corresp id="c2"><bold>Correspond&#234;ncia: Paulo Yuri Andrade,</bold> Hospital UNIMEC - Cardiologia - Rua Goes Calmon, 284. CEP: 45028-706, Vitoria da Conquista, BA - Brasil. E-mail: <email>yurimed1@hotmail.com</email>
				</corresp>
        <fn fn-type="con">
          <p>
            <bold>Contribui&#231;&#227;o dos autores</bold>
          </p>
          <p>Concep&#231;&#227;o e desenho da pesquisa: Andrade P; Obten&#231;&#227;o de dados: Almeida A; An&#225;lise e interpreta&#231;&#227;o dos dados: Santos D, Moreira M.</p>
        </fn>
        <fn fn-type="conflict">
          <p>
            <bold>Potencial conflito de interesses</bold>
          </p>
          <p>Declaro n&#227;o haver conflito de interesses pertinentes.</p>
        </fn>
      </author-notes>
      <kwd-group xml:lang="pt">
        <title>Palavras-chave</title>
        <kwd>Transposi&#231;&#227;o dos grandes vasos/cirurgia</kwd>
        <kwd>Insufici&#234;ncia da Valva Mitral</kwd>
        <kwd>Diagn&#243;stico por Imagem</kwd>
        <kwd>Ecocardiografia</kwd>
        <kwd>Doppler/m&#233;todos</kwd>
        <kwd>Idoso</kwd>
      </kwd-group>
    </front-stub>
    <body>
      <p>Homem de 62 anos, deu entrada no servi&#231;o de ecocardiografia com hist&#243;rico de hipertens&#227;o arterial e sopro sist&#243;lico em foco mitral. Na avalia&#231;&#227;o subsequente o paciente relatou dispneia e fadiga aos esfor&#231;os moderados, por&#233;m sem impacto na vida social. Satura&#231;&#227;o perif&#233;rica de oxig&#234;nio em repouso variando entre 95% e 98%, extremidades aquecidas e perfundidas sem sinais de hipoperfus&#227;o perif&#233;rica, cianose e baquetamento digital ausentes.</p>
      <p>O ecocardiograma revelou se tratar de um exame em levocardia, com presen&#231;a de ventr&#237;culo &#250;nico de entrada dupla com transposi&#231;&#227;o dos grandes vasos (<xref ref-type="fig" rid="f5">Figuras 1</xref>, <xref ref-type="fig" rid="f6">2</xref> e <xref ref-type="fig" rid="f7">3</xref>), com <italic>situs solitus,</italic> aumento das c&#226;maras atriais associado a insufici&#234;ncia mitral importante por dilata&#231;&#227;o do anel. Observou-se preserva&#231;&#227;o anat&#244;mica das duas v&#225;lvulas &#225;trio ventriculares, demonstrado na <xref ref-type="fig" rid="f5">Figura 1</xref>. N&#227;o foi poss&#237;vel definir, de uma perspectiva morfol&#243;gica, o tipo do ventr&#237;culo, por&#233;m observou-se dimens&#245;es aumentadas e disfun&#231;&#227;o contr&#225;til moderada. Constatou-se a presen&#231;a de estenose pulmonar com gradiente m&#225;ximo de 56 mmHg, podendo ser visualizado na <xref ref-type="fig" rid="f8">Figura 4</xref>.</p>
      <p>
        <fig id="f5">
          <label>Figura 1</label>
          <caption>
            <title>Ecocardiografia transtor&#225;cica: incid&#234;ncia apical, demostrando ventr&#237;culo &#250;nico e nenhuma evid&#234;ncia de tecido septal interventricular registrada. 254x190mm (96x96 DPI).</title>
          </caption>
          <graphic xlink:href="1678-4170-abc-113-03-0444-90160-gf01-pt.jpg"/></fig>
      </p>
      <p>
        <fig id="f6">
          <label>Figura 2</label>
          <caption>
            <title>Ecocardiografia transtor&#225;cica: incid&#234;ncia apical, demostrando duas v&#225;lvulas atrioventriculares, septo interatrial e regurgita&#231;&#227;o mitral. 361x270mm (72x72 DPI).</title>
          </caption>
          <graphic xlink:href="1678-4170-abc-113-03-0444-90160-gf02-pt.jpg"/></fig>
      </p>
      <p>
        <fig id="f7">
          <label>Figura 3</label>
          <caption>
            <title>Incid&#234;ncia paraesternal no eixo longo demonstrando a transposi&#231;&#227;o dos grandes vasos. 254x190mm (96x96 DPI).</title>
          </caption>
          <graphic xlink:href="1678-4170-abc-113-03-0444-90160-gf03-pt.jpg"/></fig>
      </p>
      <p>
        <fig id="f8">
          <label>Figura 4</label>
          <caption>
            <title>Gradiente pulmonar. 254x190 mm (96x6 DPI).</title>
          </caption>
          <graphic xlink:href="1678-4170-abc-113-03-0444-90160-gf04-pt.jpg"/></fig>
      </p>
      <p>O ventr&#237;culo &#250;nico se refere a uma condi&#231;&#227;o incomum que corresponde a 1,5% das cardiopatias cong&#234;nitas, na qual uma &#250;nica c&#226;mara bombeadora recebe o fluxo de entrada dos dois &#225;trios<xref ref-type="bibr" rid="B1">1</xref><sup>,</sup><xref ref-type="bibr" rid="B2">2</xref> sendo incomum em indiv&#237;duos idosos oligo ou assintom&#225;tico, sem corre&#231;&#227;o cir&#250;rgica pr&#233;via. Uma segunda c&#226;mara rudimentar pode estar presente, por&#233;m n&#227;o h&#225; uma entrada funcional.<xref ref-type="bibr" rid="B1">1</xref> Com base na morfologia, localiza&#231;&#227;o e padr&#227;o da trabecula&#231;&#227;o das c&#226;maras bombeadoras e rudimentares, o cora&#231;&#227;o &#233; referido como cora&#231;&#227;o do tipo univentricular direito, esquerdo ou indeterminado,<xref ref-type="bibr" rid="B3">3</xref> como no presente relato. A forma mais comum de ventr&#237;culo &#250;nico &#233; a do tipo ventricular esquerdo, onde as conex&#245;es ventr&#237;culo arteriais s&#227;o vari&#225;veis,<xref ref-type="bibr" rid="B4">4</xref> neste caso havia uma transposi&#231;&#227;o dos grandes vasos.</p>
      <p>A ecocardiografia foi fundamental no diagn&#243;stico do ventr&#237;culo &#250;nico de entrada dupla, por&#233;m nem sempre &#233; poss&#237;vel estabelecer o tipo de ventr&#237;culo se &#233; direito ou esquerdo, visto que se torna dif&#237;cil ter a certeza de que n&#227;o h&#225; um segundo ventr&#237;culo rudimentar, sendo nestes casos a resson&#226;ncia nuclear magn&#233;tica necess&#225;ria para complementa&#231;&#227;o diagn&#243;stica.</p>
    </body>
    <back>
      <fn-group>
        <fn fn-type="financial-disclosure">
          <p>
            <bold>Fontes de financiamento</bold>
          </p>
          <p>O presente estudo n&#227;o teve fontes de financiamento externas.</p>
        </fn>
        <fn fn-type="other">
          <p>
            <bold>Vincula&#231;&#227;o acad&#234;mica</bold>
          </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-group>
    </back>
  </sub-article>
</article>
