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  <front>
    <journal-meta>
      <journal-id journal-id-type="nlm-ta">Arq Bras Cardiol</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</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="publisher-id" specific-use="scielo-v3">dG9bYjvwnzhqCv9KGGNM9kb</article-id>
      <article-id pub-id-type="publisher-id" specific-use="scielo-v2">S0066-782X2014002200017</article-id>
      <article-id pub-id-type="other">00017</article-id>
      <article-id pub-id-type="doi">10.5935/abc.20140157</article-id>
      <article-categories>
        <subj-group subj-group-type="heading">
          <subject>Image</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>Ablation of Premature Ventricular Contraction with the Help of a
               Notch</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name>
            <surname>&#214;zcan</surname>
            <given-names>Firat</given-names>
          </name>
          <xref ref-type="aff" rid="aff01"/>
          <xref ref-type="corresp" rid="c01"/>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Topalo&#287; lu</surname>
            <given-names>Serkan</given-names>
          </name>
          <xref ref-type="aff" rid="aff01"/>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Turak</surname>
            <given-names>Osman</given-names>
          </name>
          <xref ref-type="aff" rid="aff01"/>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>&#199;ay</surname>
            <given-names>Serkan</given-names>
          </name>
          <xref ref-type="aff" rid="aff01"/>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Aras</surname>
            <given-names>Dursun</given-names>
          </name>
          <xref ref-type="aff" rid="aff01"/>
        </contrib>
        <aff id="aff01">
          <institution content-type="orgname">T&#252;rkiye Y&#252;ksek &#304; htias Hospital</institution>
          <institution content-type="original">T&#252;rkiye Y&#252;ksek &#304; htias Hospital</institution>
        </aff>
      </contrib-group>
      <author-notes>
        <corresp id="c01"><bold>Mailing Address: Firat &#214;zcan,</bold> T&#252;rkiye Y&#252;ksek &#221; htisas Hastanesi,
               Sihhiye. Postal Code 6590, Ankara, Turquia. Email:
                  <email>doctorfiratozcan@gmail.com</email></corresp>
      </author-notes>
      <pub-date pub-type="epub-ppub">
        <month>10</month>
        <year>2014</year>
      </pub-date>
      <volume>103</volume>
      <issue>4</issue>
      <fpage>e55</fpage>
      <lpage>e56</lpage>
      <history>
        <date date-type="received">
          <day>18</day>
          <month>03</month>
          <year>2014</year>
        </date>
        <date date-type="rev-recd">
          <day>28</day>
          <month>07</month>
          <year>2014</year>
        </date>
        <date date-type="accepted">
          <day>28</day>
          <month>07</month>
          <year>2014</year>
        </date>
      </history>
      <permissions>
        <license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by-nc/3.0/">
          <license-p>This is an Open Access article distributed under the terms of the Creative
                  Commons Attribution Non-Commercial License which permits unrestricted
                  non-commercial use, distribution, and reproduction in any medium, provided the
                  original work is properly cited.</license-p>
        </license>
      </permissions>
      <kwd-group xml:lang="en">
        <kwd>Myocardial Contraction</kwd>
        <kwd>Catheter Ablation</kwd>
        <kwd>Ventricular Function</kwd>
      </kwd-group>
      <counts>
        <fig-count count="2"/>
        <table-count count="0"/>
        <equation-count count="0"/>
        <ref-count count="0"/>
        <page-count count="2"/>
      </counts>
    </article-meta>
  </front>
  <body>
    <p>A 43-year-old male patient presented with a complaint of palpitation. Electrocardiography
         revealed premature ventricular contraction (PVC) that appeared to be originating from the
         left ventricular outflow tract. Tall positive R waves were observed in leads II, III, and
         aVF, and the R transition was observed at V2 in precordial leads. A notch was realized on
         the downward deflection of QS, which was only at lead V1. (<xref ref-type="fig" rid="f01">Figure 1</xref>) This finding indicates that the region between the right and left
         coronary commissures is the origin of VPS. In addition, 24-h Holter monitoring revealed
         32000 PVCs. Therefore, an electrophysiology study was planned. During the procedure, the
         catheter was moved between the right coronary and left coronary commissures, and the
         ablation catheter was placed at the ventricular side of the commissures where the earliest
         signal recorded was at 40 ms. At this site, pacing produced 12/12 morphology with PVC. In
         addition, at this site, we demonstrated a deflection prior to the intracardiac ventricular
         electrogram of PVCs corresponding to the notch. This deflection was after the intracardiac
         ventricular electrogram during sinus beats (<xref ref-type="fig" rid="f01">Figure
         1</xref>). Ablation was performed at 20 watt 45 degrees, and it terminated all PVCs at this
         site.</p>
    <fig id="f01" fig-type="other">
      <label>Figure 1</label>
      <caption>
        <title>Left panel: Surface Electrocardiography. Right panel: Fluoroscopic images of the
               ablation site and intracardiac electrograms demonstrating a deflection during sinus
               beat and premature ventricular beat corresponding to a notch in the
               electrocardiography.</title>
      </caption>
      <graphic xlink:href="1678-4170-abc-103-04-0e55-40157-gf01.tif"/></fig>
    <p>PVCs can be very disturbing in some patients, and medical treatment may be tried. Long-term
         impacts of PVC may be deleterious for systolic ventricular function. Ablation of culprit
         source of PVC is an effective treatment and may improve systolic function of the left
         ventricle. Our patient was on a long-term medical treatment that failed to terminate PVCs.
         We preferred ablation for treatment. In this case, we would like to mention that ECG is an
         important, simple, cheap, and widely available tool that can be used for localization.</p>
  </body>
  <sub-article article-type="translation" id="SA1" xml:lang="pt">
    <front-stub>
      <article-categories>
        <subj-group subj-group-type="heading">
          <subject>Imagem</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>Abla&#231;&#227;o de Contra&#231;&#227;o Ventricular Prematura com a Ajuda de
               Notch</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name>
            <surname>&#214;zcan</surname>
            <given-names>Firat</given-names>
          </name>
          <xref ref-type="aff" rid="aff02"/>
          <xref ref-type="corresp" rid="c02"/>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>lu</surname>
            <given-names>Serkan Topalo&#287;</given-names>
          </name>
          <xref ref-type="aff" rid="aff02"/>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Turak</surname>
            <given-names>Osman</given-names>
          </name>
          <xref ref-type="aff" rid="aff02"/>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>&#199;ay</surname>
            <given-names>Serkan</given-names>
          </name>
          <xref ref-type="aff" rid="aff02"/>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Aras</surname>
            <given-names>Dursun</given-names>
          </name>
          <xref ref-type="aff" rid="aff02"/>
        </contrib>
        <aff id="aff02">
          <institution content-type="orgname">T&#252;rkiye Y&#252;ksek &#304; htias Hospital</institution>
          <institution content-type="original">T&#252;rkiye Y&#252;ksek &#304; htias Hospital</institution>
        </aff>
      </contrib-group>
      <author-notes>
        <corresp id="c02"><bold>Correspond&#234;ncia: Firat &#214;zcan.</bold> T&#252;rkiye Y&#252;ksek &#221; htisas
               Hastanesi, Sihhiye. Postal Code 6590, Ankara, Turquia. Email:
                  <email>doctorfiratozcan@gmail.com</email></corresp>
      </author-notes>
      <kwd-group xml:lang="pt">
        <kwd>Contra&#231;&#227;o Mioc&#225;rdica</kwd>
        <kwd>Abla&#231;&#227;o por Cateter</kwd>
        <kwd>Fun&#231;&#227;o Ventricular</kwd>
      </kwd-group>
    </front-stub>
    <body>
      <p>Um paciente de 43 anos, do sexo masculino, apresentou queixas de palpita&#231;&#245;es. A
            eletrocardiografia demonstrou contra&#231;&#227;o ventricular prematura (CVP) aparentemente
            proveniente do trato do efluxo do ventr&#237;culo esquerdo. Ondas R altas positivas forma
            observadas nas deriva&#231;&#245;es II-III e aVF, e a transi&#231;&#227;o R nas deriva&#231;&#245;es V2 e precordiais.
            O notch foi realizado na deflex&#227;o terminal do QS, na deriva&#231;&#227;o V1 (<xref ref-type="fig" rid="f02">Figura 1</xref>). Este resultado indica que a regi&#227;o entre as comissuras
            coron&#225;rias direita e esquerda constitui a origem da SPV. O registro Holter de 24 horas
            revelou 32000 CVPs. Um estudo eletrofisiol&#243;gico foi planejado. Durante o procedimento, o
            cateter foi direcionado &#224;s comissuras coron&#225;rias direita e esquerda e o cateter de
            abla&#231;&#227;o foi posicionado no lado ventricular das comissuras, onde os primeiros sinais
            gravados foram de 40 ms. O pacing neste local produziu uma morfologia com CVP de 12/12.
            Al&#233;m disso, neste local, nos observamos uma deflex&#227;o anterior ao eletrograma ventricular
            intracard&#237;aco das CVPs, correspondente ao notch. Durante o ritmo sinusal, a deflex&#227;o
            ocorreu ap&#243;s o eletrograma ventricular intracard&#237;aco (<xref ref-type="fig" rid="f02">Figura 1</xref>). A abla&#231;&#227;o foi realizada utilizando uma radiofrequ&#234;ncia de 20 watts
            e 45 &#186;C e interrompeu todas as CVPs neste local.</p>
      <fig id="f02" fig-type="other">
        <label>Figura 1</label>
        <caption>
          <title>Painel esquerdo: eletrocardiografia de superf&#237;cie Painel direito: imagens de
                  fluoroscopia do local de abla&#231;&#227;o e eletrogramas intracard&#237;acos demonstrando a
                  deflex&#227;o durante o ritmo sinusal e o ritmo ventricular prematuro correspondente ao
                  notch na eletrocardiografia.</title>
        </caption>
        <graphic xlink:href="1678-4170-abc-103-04-0e55-40157-gf01-pt.tif"/></fig>
      <p>Contra&#231;&#245;es ventriculares prematuras podem ser muito inc&#244;modas para alguns pacientes. O
            tratamento m&#233;dico pode ser uma op&#231;&#227;o. Os impactos do CVP a longo prazo podem ser
            prejudiciais &#224; fun&#231;&#227;o ventricular sist&#243;lica. A abla&#231;&#227;o do local de origem do CVP &#233; um
            tratamento eficaz e pode melhorar a fun&#231;&#227;o sist&#243;lica do ventr&#237;culo esquerdo. O nosso
            paciente foi submetido a um tratamento m&#233;dico de longo prazo que n&#227;o foi capaz de
            interromper os CVPs. N&#243;s optamos pelo tratamento por abla&#231;&#227;o. Neste caso, gostar&#237;amos de
            lembrar os resultados do ECG para a localiza&#231;&#227;o da CVP e a import&#226;ncia da utiliza&#231;&#227;o de
            ferramentas simples, baratas e amplamente dispon&#237;veis; ECG.</p>
    </body>
  </sub-article>
</article>
