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  <front>
    <journal-meta>
      <journal-id journal-id-type="publisher-id">97</journal-id>
      <journal-id journal-id-type="index">urn:lsid:arphahub.com:pub:B5033382-9D21-53CE-B630-B4E3A1146D51</journal-id>
      <journal-title-group>
        <journal-title xml:lang="en">Bulgarian Cardiology</journal-title>
        <abbrev-journal-title xml:lang="en">Bulgarian Cardiology</abbrev-journal-title>
      </journal-title-group>
      <issn pub-type="ppub">1310-7488</issn>
      <issn pub-type="epub">2683-1015</issn>
      <publisher>
        <publisher-name>Bulgarian Society of Cardiology</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="doi">10.3897/bgcardio.29.e104528</article-id>
      <article-id pub-id-type="publisher-id">104528</article-id>
      <article-categories>
        <subj-group subj-group-type="heading">
          <subject>Research Article</subject>
        </subj-group>
        <subj-group subj-group-type="scientific_subject">
          <subject>Arrhythmias (аритмии)</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>Interventional electrophysiology in Bulgaria in 2022: data from the electronic registry BG-EPHY</article-title>
      </title-group>
      <contrib-group content-type="authors">
        <contrib contrib-type="author" corresp="yes">
          <name name-style="western">
            <surname>Shalganov</surname>
            <given-names>T.</given-names>
          </name>
          <email xlink:type="simple">t_shalganov@yahoo.com</email>
          <uri content-type="orcid">https://orcid.org/0000-0003-2268-0759</uri>
          <xref ref-type="aff" rid="A1">1</xref>
        </contrib>
        <contrib contrib-type="author" corresp="no">
          <name name-style="western">
            <surname>Stoyanov</surname>
            <given-names>M.</given-names>
          </name>
          <uri content-type="orcid">https://orcid.org/0000-0002-1226-6119</uri>
          <xref ref-type="aff" rid="A2">2</xref>
        </contrib>
        <contrib contrib-type="author" corresp="no">
          <name name-style="western">
            <surname>Traykov</surname>
            <given-names>V.</given-names>
          </name>
          <uri content-type="orcid">https://orcid.org/0000-0002-9523-6416</uri>
          <xref ref-type="aff" rid="A3">3</xref>
        </contrib>
      </contrib-group>
      <aff id="A1">
        <label>1</label>
        <addr-line content-type="verbatim">National Heart Hospital, Sofia, Bulgaria</addr-line>
        <institution>National Heart Hospital</institution>
        <addr-line content-type="city">Sofia</addr-line>
        <country>Bulgaria</country>
      </aff>
      <aff id="A2">
        <label>2</label>
        <addr-line content-type="verbatim">National Heart Hoslital, Sofia, Bulgaria</addr-line>
        <institution>National Heart Hoslital</institution>
        <addr-line content-type="city">Sofia</addr-line>
        <country>Bulgaria</country>
      </aff>
      <aff id="A3">
        <label>3</label>
        <addr-line content-type="verbatim">Acibadem City Clinic Tokuda Hospital, Sofia, Bulgaria</addr-line>
        <institution>Acibadem City Clinic Tokuda Hospital</institution>
        <addr-line content-type="city">Sofia</addr-line>
        <country>Bulgaria</country>
      </aff>
      <author-notes>
        <fn fn-type="corresp">
          <p>Corresponding author: T. Shalganov (<email xlink:type="simple">t_shalganov@yahoo.com</email>).</p>
        </fn>
        <fn fn-type="edited-by">
          <p>Academic editor: Krasimir Dzhinsov</p>
        </fn>
      </author-notes>
      <pub-date pub-type="collection">
        <year>2023</year>
      </pub-date>
      <pub-date pub-type="epub">
        <day>19</day>
        <month>07</month>
        <year>2023</year>
      </pub-date>
      <volume>29</volume>
      <issue>2</issue>
      <fpage>36</fpage>
      <lpage>45</lpage>
      <uri content-type="arpha" xlink:href="http://openbiodiv.net/DC437B44-56CE-5D90-B437-D9324A7EBE5C">DC437B44-56CE-5D90-B437-D9324A7EBE5C</uri>
      <history>
        <date date-type="received">
          <day>03</day>
          <month>04</month>
          <year>2023</year>
        </date>
        <date date-type="accepted">
          <day>20</day>
          <month>05</month>
          <year>2023</year>
        </date>
      </history>
      <permissions>
        <copyright-statement>T. Shalganov, M. Stoyanov, V. Traykov</copyright-statement>
        <license license-type="creative-commons-attribution" xlink:href="http://creativecommons.org/licenses/by/4.0/" xlink:type="simple">
          <license-p>This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.</license-p>
        </license>
      </permissions>
      <abstract>
        <label>Abstract</label>
        <p>This study presents data from the national electronic registry BG-EPHY on electrophysiologic (EP) cardiac ablations in 2022. <strong>Material and methods:</strong> This is a retrospective study of a full one-year sample of the BG-EPHY registry. Sex and age distribution of the patients, number of ablations, use of electroanatomic mapping (EAM), irrigated and cryoablations, distribution of different types of arrhythmias, acute procedural success and complications are presented. <strong>Results:</strong> In 2022 seven EP centers performed 1369 ablations in 872 men (63.7%) and 497 women (57% increase compared to previous year), incl. 15 ablations in pediatric patients (1.1%). EAM was used in 746 procedures (54.5%), irrigated-tip catheter – in 814 (59.5%), cryoballoon catheter – in 130 (9.5%), and intracardiac echocardiography – in 33 (2.4%). The most frequently performed ablation was pulmonary vein isolation (40.2%), followed by ablation for AV nodal reentrant tachycardia (18.6%) and typical atrial fl utter (16.6%). The acute success was over 98%, while intraprocedural complications were less than 2%. <strong>Conclusion:</strong> The national registry of electrophysiology collects systematically and continuously basic data on all ablations of cardiac arrhythmias performed in the country. In 2022, during a subsiding COVID-19 pandemic and with the inclusion of new centers the number of ablations increased compared to 2021. Distribution of EP procedure types was similar to previous years. Acute success was very high, while intraprocedural complications were rare.</p>
      </abstract>
    </article-meta>
  </front>
</article>
