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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">tPHdrm9VxkcBMNcZWVrsvxv</article-id>
      <article-id specific-use="scielo-v2" pub-id-type="publisher-id">S0066-782X2020001300819</article-id>
      <article-id pub-id-type="publisher-id">abc.20200959</article-id>
      <article-id pub-id-type="doi">10.36660/abc.20200959</article-id>
      <article-categories>
        <subj-group subj-group-type="heading">
          <subject>Minieditorial</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>Mais Estudos devem ser Realizados sobre o Volume Vascular Pulmonar Estimado por Software Automatizado em Embolia Pulmonar Aguda</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="editor">
          <contrib-id contrib-id-type="orcid">0000-0003-2791-8375</contrib-id>
          <name>
            <surname>Nacif</surname>
            <given-names>Marcelo Souto</given-names>
          </name>
          <xref ref-type="aff" rid="aff1">
            <sup>1</sup>
          </xref>
          <xref ref-type="aff" rid="aff2">
            <sup>2</sup>
          </xref>
          <xref ref-type="corresp" rid="c1"/>
        </contrib>
        <aff id="aff1">
          <label>1</label>
          <institution content-type="orgname">Complexo Hospitalar de Niter&#243;i</institution>
          <institution content-type="orgdiv1">Radiologia Cardiovascular</institution>
          <addr-line>
            <named-content content-type="city">Niter&#243;i</named-content>
            <named-content content-type="state">RJ</named-content>
          </addr-line>
          <country country="BR">Brasil</country>
          <institution content-type="original">Complexo Hospitalar de Niter&#243;i - Radiologia Cardiovascular, Niter&#243;i. RJ - Brasil</institution>
        </aff>
        <aff id="aff2">
          <label>2</label>
          <institution content-type="orgname">Universidade Federal Fluminense Hospital Universit&#225;rio Ant&#244;nio Pedro</institution>
          <institution content-type="orgdiv1">Departamento de Radiologia</institution>
          <addr-line>
            <named-content content-type="city">Niter&#243;i</named-content>
            <named-content content-type="state">RJ</named-content>
          </addr-line>
          <country country="BR">Brasil</country>
          <institution content-type="original">Universidade Federal Fluminense Hospital Universit&#225;rio Ant&#244;nio Pedro - Departamento de Radiologia, Niter&#243;i, RJ &#8211; Brasil</institution>
        </aff>
      </contrib-group>
      <author-notes>
        <corresp id="c1"><bold>Correspond&#234;ncia: Marcelo Souto Nacif</bold> &#8226; Complexo Hospitalar de Niter&#243;i &#8211; Cardiologia - Rua La Sale, 12. CEP <postal-code>24020-096</postal-code>, Niter&#243;i - Brasil E-mail: <email>msnacif@gmail.com</email> </corresp>
      </author-notes>
      <pub-date date-type="pub" publication-format="electronic">
        <day>07</day>
        <month>12</month>
        <year>2020</year>
      </pub-date>
      <pub-date date-type="collection" publication-format="electronic">
        <month>11</month>
        <year>2020</year>
      </pub-date>
      <volume>115</volume>
      <issue>5</issue>
      <fpage>819</fpage>
      <lpage>820</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</license-p>
        </license>
      </permissions>
      <kwd-group xml:lang="pt">
        <title>Palavras-chave</title>
        <kwd>Embolia Pulmonar Aguda/complica&#231;&#245;es</kwd>
        <kwd>Progn&#243;stico</kwd>
        <kwd>Medicina de Precis&#227;o</kwd>
        <kwd>Tomografia Computadorizada/m&#233;todos</kwd>
        <kwd>Algoritmos</kwd>
        <kwd>Software</kwd>
        <kwd>Intelig&#234;ncia Artificial/tend&#234;ncias</kwd>
      </kwd-group>
      <counts>
        <fig-count count="0"/>
        <table-count count="0"/>
        <equation-count count="0"/>
        <ref-count count="9"/>
        <page-count count="2"/>
      </counts>
    </article-meta>
  </front>
  <body>
    <p>A embolia pulmonar aguda (EPA) tem apresenta&#231;&#227;o cl&#237;nica heterog&#234;nea e o desenvolvimento de ferramentas cl&#237;nicas para melhor estratifica&#231;&#227;o do progn&#243;stico dos pacientes &#233; bastante desej&#225;vel. Ser capaz de discernir qual paciente tem maior probabilidade de ter complica&#231;&#245;es ou at&#233; mesmo morrer &#233; fundamental na era da medicina de precis&#227;o. Isso pode auxiliar na escolha de um tratamento mais intensivo e individualizado.<xref ref-type="bibr" rid="B1"><sup>1</sup></xref> </p>
    <p>A angiotomografia pulmonar (ATCP) j&#225; &#233; o m&#233;todo mais utilizado em emerg&#234;ncias para o diagn&#243;stico e estratifica&#231;&#227;o de pacientes com EPA. A grande variabilidade das apresenta&#231;&#245;es cl&#237;nicas, seja em pacientes com c&#226;ncer ou em diferentes condi&#231;&#245;es trombog&#234;nicas, torna alguns dados quantitativos mais atrativos do que apenas a an&#225;lise qualitativa do exame.<xref ref-type="bibr" rid="B2"><sup>2</sup></xref><sup>&#8211;</sup><xref ref-type="bibr" rid="B5"><sup>5</sup></xref> </p>
    <p>Assim, o trabalho de Soriano et al.<xref ref-type="bibr" rid="B6"><sup>6</sup></xref> que desenvolve um algoritmo de an&#225;lise de dados totalmente automatizado, capaz de extrapolar par&#226;metros que diferenciam os indiv&#237;duos com maior probabilidade de morrer em um curto per&#237;odo de tempo, &#233; de grande valor.<xref ref-type="bibr" rid="B6"><sup>6</sup></xref> </p>
    <p>O principal resultado &#233; que o volume vascular pulmonar ajustado (VVPa) diminuiu significativamente no grupo de n&#227;o-sobreviventes em compara&#231;&#227;o ao grupo de sobreviventes (21 &#177; 6 cm<sup>3</sup>/L vs. 30 &#177; 7 cm<sup>3</sup>/L, p = 0,001).<xref ref-type="bibr" rid="B6"><sup>6</sup></xref> E o melhor ponto de corte do VVPa para determinar a mortalidade em um m&#234;s foi de 23 cm<sup>3</sup>/L.<xref ref-type="bibr" rid="B6"><sup>6</sup></xref> </p>
    <p>Nesta etapa, eu gostaria de levantar pontos espec&#237;ficos que s&#227;o fundamentais para uma boa leitura e compreens&#227;o do direcionamento que este trabalho nos fornece.</p>
    <p>O tamanho da amostra provavelmente n&#227;o foi suficiente para termos o poder de concluir que esse m&#233;todo pode ser extrapolado para outras popula&#231;&#245;es, mas serve para antecipar uma poss&#237;vel tend&#234;ncia e estimular novos estudos. Como discutido pelo grupo, a maioria dos estudos j&#225; publicados recrutou um n&#250;mero muito maior de participantes, como Coutance et al.,<xref ref-type="bibr" rid="B7"><sup>7</sup></xref> com 383 pacientes com EPA, Moroni et al.<xref ref-type="bibr" rid="B8"><sup>8</sup></xref> com 225 ATCP com EPA n&#227;o grave e Kamamaru et al.,<xref ref-type="bibr" rid="B9"><sup>9</sup></xref> com 1.698 ATCP de pacientes com EPA.</p>
    <p>H&#225; um claro vi&#233;s de sele&#231;&#227;o porque o c&#243;digo de embolia pulmonar (I26) n&#227;o foi utilizado como crit&#233;rio de sele&#231;&#227;o no registro do banco de dados do hospital utilizando a Classifica&#231;&#227;o Estat&#237;stica Internacional de Doen&#231;as (CID-10). Neste estudo, temos apenas os c&#243;digos referentes &#224; embolia pulmonar com <italic>cor pulmonale</italic> aguda (I26.0) e embolia pulmonar sem <italic>cor pulmonale</italic> aguda (I26.9).</p>
    <p>Al&#233;m disso, dos 84 estudos sobre ATCP recuperados, apenas 61 (73%) puderam ser analisados de forma automatizada pelo <italic>software</italic> Yacta. Geralmente, pacientes com casos mais graves, maior dispneia e instabilidade hemodin&#226;mica ser&#227;o aqueles que ter&#227;o conjuntos de dados com mais artefatos, dificultando o uso do algoritmo do Yacta.</p>
    <p>Outro ponto no qual ainda tenho d&#250;vida &#233; a utiliza&#231;&#227;o desse m&#233;todo para diferentes tipos de tom&#243;grafos computadorizados. Portanto, estou satisfeito em ver o desenvolvimento alcan&#231;ado, mas ainda vejo muitas quest&#245;es a serem respondidas em um estudo prospectivo e multic&#234;ntrico com tom&#243;grafos de m&#250;ltiplos detectores.</p>
    <p>Por fim, espero que o uso de intelig&#234;ncia artificial ajustada a um banco de dados possa melhorar a efici&#234;ncia do software, reduzindo os casos atualmente exclu&#237;dos. Tamb&#233;m acredito que este banco de dados pode ser usado para categorizar os achados. Que venham mais estudos!!!</p>
  </body>
  <back>
    <fn-group>
      <fn fn-type="other" id="fn1">
        <p>Minieditorial referente ao artigo: Volume Vascular Pulmonar Estimado por Software Automatizado &#233; um Preditor de Mortalidade ap&#243;s Embolia Pulmonar Aguda</p>
      </fn>
    </fn-group>
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  </back>
  <sub-article article-type="translation" id="S01" xml:lang="en">
    <front-stub>
      <article-categories>
        <subj-group subj-group-type="heading">
          <subject>Short Editorial</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>Ventricular Repolarization as a Tool to Monitor Electrical Activity of the Heart</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="editor">
          <contrib-id contrib-id-type="orcid">0000-0003-2791-8375</contrib-id>
          <name>
            <surname>Nacif</surname>
            <given-names>Marcelo Souto</given-names>
          </name>
          <xref ref-type="aff" rid="aff3">
            <sup>1</sup>
          </xref>
          <xref ref-type="aff" rid="aff4">
            <sup>2</sup>
          </xref>
          <xref ref-type="corresp" rid="c2"/>
        </contrib>
        <aff id="aff3">
          <label>1</label>
          <addr-line>
            <named-content content-type="city">Niter&#243;i</named-content>
            <named-content content-type="state">RJ</named-content>
          </addr-line>
          <country country="BR">Brazil</country>
          <institution content-type="original">Complexo Hospitalar de Niter&#243;i - Radiologia Cardiovascular, Niter&#243;i. RJ - Brazil</institution>
        </aff>
        <aff id="aff4">
          <label>2</label>
          <addr-line>
            <named-content content-type="city">Niter&#243;i</named-content>
            <named-content content-type="state">RJ</named-content>
          </addr-line>
          <country country="BR">Brazil</country>
          <institution content-type="original">Universidade Federal Fluminense Hospital Universit&#225;rio Ant&#244;nio Pedro - Departamento de Radiologia, Niter&#243;i, RJ &#8211; Brazil</institution>
        </aff>
      </contrib-group>
      <author-notes>
        <corresp id="c2"><bold>Mailing Address: Marcelo Souto Nacif</bold> &#8226; Complexo Hospitalar de Niter&#243;i &#8211; Cardiologia - Rua La Sale, 12. Postal Code <postal-code>24020-096</postal-code>, Niter&#243;i - Brazil E-mail: <email>msnacif@gmail.com</email> </corresp>
      </author-notes>
      <kwd-group xml:lang="en">
        <title>Keywords</title>
        <kwd>Acute</kwd>
        <kwd>Pulmonary Embolism/complications</kwd>
        <kwd>Prognosis</kwd>
        <kwd>Precision Medicine</kwd>
        <kwd>Compute Tomography/methods</kwd>
        <kwd>Algorithms</kwd>
        <kwd>Software</kwd>
        <kwd>Artificial Intelligence/trends</kwd>
      </kwd-group>
    </front-stub>
    <body>
      <p>Acute pulmonary embolism has a heterogeneous clinical presentation and the development of clinical tools for better stratification of the patients prognosis is extremely desired. Being able to discern which patient is most likely to have complications or even death is critical in the age of precision medicine. This may assist in choosing a more intensive and individualized treatment.<xref ref-type="bibr" rid="B1"><sup>1</sup></xref> </p>
      <p>Computed tomography pulmonary angiography (CTPA) is already the most used method in emergencies for the diagnosis and stratification of patients with APE. The great variability of clinical presentations, whether in patients with cancer or different thrombogenic conditions, makes some quantitative data more attractive than just the qualitative analysis of the exam.<xref ref-type="bibr" rid="B2"><sup>2</sup></xref><sup>&#8211;</sup><xref ref-type="bibr" rid="B5"><sup>5</sup></xref> </p>
      <p>Thus, the work of Soriano et al.<xref ref-type="bibr" rid="B6"><sup>6</sup></xref> which develops a fully automated data analysis algorithm capable of extrapolating parameters that differentiate individuals most likely to die in a short period of time, is of great value.<xref ref-type="bibr" rid="B6"><sup>6</sup></xref> </p>
      <p>The main result is the adjusted pulmonary vascular volume (aPVV) was significantly decreased in the non-survivors group in comparison to the survivor's group (21&#177;6 cm<sup>3</sup>/L vs. 30&#177;7 cm<sup>3</sup>/L, p=0.001).<xref ref-type="bibr" rid="B6"><sup>6</sup></xref> And the best cutoff point of the aPVV to determine the one-month mortality was 23 cm<sup>3</sup>/L.<xref ref-type="bibr" rid="B6"><sup>6</sup></xref> </p>
      <p>At this stage, I would like to raise specific points that are fundamental for a good reading and understanding of the direction that this work provides us.</p>
      <p>The sample size was probably not enough to have power to conclude that this method can be extrapolated to other populations, but it serves to advance a possible trend and encourage new studies. As discussed by the group, most of the studies already published recruited a much larger number of participants such as Coutance et al.<xref ref-type="bibr" rid="B7"><sup>7</sup></xref> with 383 patients with APE, Moroni at al.<xref ref-type="bibr" rid="B8"><sup>8</sup></xref> with 225 CTPA with non severe APE and Kamamaru et al.<xref ref-type="bibr" rid="B9"><sup>9</sup></xref> with 1698 CTPA from APE patients.</p>
      <p>There is a clear selection bias because the pulmonary embolism (I26) code was not used as selection criteria in the hospital database record using the International Statistical Classification of Diseases (ICD-10). In this study, we have only the codes referring to pulmonary embolism with acute cor pulmonale (I26.0) and pulmonary embolism without acute cor pulmonale (I26.9).</p>
      <p>Also, from 84 retrieved CTPA studies, just 61 (73%) were possible to be automated analyzed by the Yacta software. Generally, patients with more severe cases, greater dyspnea and hemodynamic instability will be those who will have datasets with more artifacts, making it difficult for the Yacta's algorithm.</p>
      <p>Another point that I still doubt is the use of this method for different types of computed tomography scanners. Therefore, I am pleased to see the development achieved, but I still see many questions to be answered in a prospective and multicentric trial, with multivendor CT scanners.</p>
      <p>Finally, I hope that the use of artificial intelligence adjusting to a database should be able to improve the software efficiency reducing the cases that are currently excluded. I also believe that this database may be used to categorize the findings. Let more studies come!!!</p>
    </body>
    <back>
      <fn-group>
        <fn fn-type="other" id="fn2">
          <p>Short Editorial related to the article: Pulmonary vascular volume estimated by automated software is a mortality predictor after acute pulmonary embolism</p>
        </fn>
      </fn-group>
    </back>
  </sub-article>
</article>
