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  <front>
    <journal-meta>
      <journal-id journal-id-type="publisher-id">ijcs</journal-id>
      <journal-title-group>
        <journal-title>International Journal of Cardiovascular Sciences</journal-title>
        <abbrev-journal-title abbrev-type="publisher">Int J Cardiovasc Sci</abbrev-journal-title>
      </journal-title-group>
      <issn pub-type="ppub">2359-4802</issn>
      <issn pub-type="epub">2359-5647</issn>
      <publisher>
        <publisher-name>Sociedade Brasileira de Cardiologia</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id specific-use="scielo-v3" pub-id-type="publisher-id">MrPddHgyRkLCWyQZ87NrvSG</article-id>
      <article-id specific-use="scielo-v2" pub-id-type="publisher-id">S2359-56472025000100404</article-id>
      <article-id pub-id-type="other">00404</article-id>
      <article-id pub-id-type="doi">10.36660/ijcs.20250049</article-id>
      <article-id pub-id-type="publisher-id">ijcs.20250049</article-id>
      <article-categories>
        <subj-group subj-group-type="heading">
          <subject>Review Article</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>Challenges and Opportunities in Teaching and Training Pediatric Cardiac Critical Care in Developing Countries: A Narrative Review</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <contrib-id contrib-id-type="orcid">0000-0002-4913-2659</contrib-id>
          <name>
            <surname>de Campos</surname>
            <given-names>Carolina Vieira</given-names>
          </name>
          <role>Conception and design of the research</role>
          <role>acquisition of data</role>
          <role>analysis and interpretation of the data and writing of the manuscript</role>
          <xref ref-type="aff" rid="aff1">
            <sup>1</sup>
          </xref>
          <xref ref-type="corresp" rid="c1"/>
        </contrib>
        <contrib contrib-type="author">
          <contrib-id contrib-id-type="orcid">0000-0002-1618-8509</contrib-id>
          <name>
            <surname>Carvalho</surname>
            <given-names>Carlos Roberto Ribeiro</given-names>
          </name>
          <role>Conception and design of the research</role>
          <role>critical revision of the manuscript for intellectual content</role>
          <xref ref-type="aff" rid="aff2">
            <sup>2</sup>
          </xref>
        </contrib>
        <aff id="aff1">
          <label>1</label>
          <institution content-type="orgname">Universidade de S&#227;o Paulo</institution>
          <institution content-type="orgdiv1">Hospital das Cl&#237;nicas HCFMUSP</institution>
          <institution content-type="orgdiv2">Faculdade de Medicina</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">Brazil</country>
          <institution content-type="original">Divis&#227;o de Cardiologia Pedi&#225;trica, Instituto do Cora&#231;&#227;o (InCor), Hospital das Cl&#237;nicas HCFMUSP, Faculdade de Medicina, Universidade de S&#227;o Paulo, S&#227;o Paulo, SP &#8211; Brazil</institution>
        </aff>
        <aff id="aff2">
          <label>2</label>
          <institution content-type="orgname">Universidade de S&#227;o Paulo</institution>
          <institution content-type="orgdiv1">Hospital das Clinicas HCFMUSP</institution>
          <institution content-type="orgdiv2">Faculdade de Medicina</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">Brazil</country>
          <institution content-type="original">Divisao de Pneumologia, Instituto do Cora&#231;&#227;o (InCor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de S&#227;o Paulo, S&#227;o Paulo, SP &#8211; Brazil</institution>
        </aff>
      </contrib-group>
      <author-notes>
        <corresp id="c1"><label>Mailing Address:</label><bold>Carolina Vieira Campos &#8226;</bold> Instituto do Coracao (InCor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de S&#227;o Paulo, Divisao de Cardiologia Pedi&#225;trica. Av Dr Eneas de Carvalho Aguiar, 44. Postal code: <postal-code>05403-000</postal-code>. S&#227;o Paulo, SP &#8211; Brazil E-mail: <email>carolvcampos@gmail.com</email></corresp>
        <fn fn-type="conflict">
          <p>Potential Conflict of Interest</p>
          <p>No potential conflict of interest relevant to this article was reported.</p>
        </fn>
        <fn fn-type="edited-by">
          <label>Editor responsible for the review:</label>
          <p>Isabel Guimaraes</p>
        </fn>
      </author-notes>
      <pub-date date-type="pub" publication-format="electronic">
        <day>01</day>
        <month>09</month>
        <year>2025</year>
      </pub-date>
      <pub-date publication-format="electronic" date-type="collection">
        <year>2025</year>
      </pub-date>
      <volume>38</volume>
      <elocation-id>e20250049</elocation-id>
      <history>
        <date date-type="received">
          <day>17</day>
          <month>03</month>
          <year>2025</year>
        </date>
        <date date-type="rev-recd">
          <day>26</day>
          <month>03</month>
          <year>2025</year>
        </date>
        <date date-type="accepted">
          <day>28</day>
          <month>04</month>
          <year>2025</year>
        </date>
      </history>
      <permissions>
        <license license-type="open-access" xml:lang="en" xlink:href="https://creativecommons.org/licenses/by/4.0/">
          <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>
      <abstract>
        <title>Abstract</title>
        <p>Congenital heart disease (CHD) is a public health issue in developing countries. Effective teaching and training are vital for healthcare professionals to provide adequate care for critically ill cardiac children, but there are many obstacles to adequately training a cohort of healthcare professionals in low- and middle-income countries (LMIC), where education practice is not always aligned with current education evidence. Work overload, time constraints, language, and the healthcare structure itself hinder standardization of an optimal training process for this highly complex scenario. This narrative review aims to explore how current teaching methodologies may help overcome challenges in pediatric cardiac critical care (PCCC) education, thus helping clinical practice, with a special focus on developing countries and the Brazilian scenario.</p>
      </abstract>
      <kwd-group xml:lang="en">
        <title>Keywords</title>
        <kwd>Medical Education</kwd>
        <kwd>Teaching</kwd>
        <kwd>Congenital Heart Defects</kwd>
        <kwd>Critical Care</kwd>
        <kwd>Telemedicine</kwd>
      </kwd-group>
      <counts>
        <fig-count count="4"/>
        <table-count count="1"/>
        <equation-count count="0"/>
        <ref-count count="78"/>
      </counts>
    </article-meta>
  </front>
  <body>
    <fig id="f1">
      <graphic xlink:href="2359-5647-ijcs-38-e20250049-50049-gf01.tif"/></fig>
    <sec sec-type="intro">
      <title>Introduction</title>
      <p>Congenital heart disease (CHD) is a public health issue in developing countries. It is estimated that 75 out of every 1000 newborns have some form of heart disease, with the most severe forms accounting for 0.6% of live births. The vast majority of them are born in developing countries,<sup><xref ref-type="bibr" rid="B1">1</xref>,<xref ref-type="bibr" rid="B2">2</xref></sup> and developmental indexes, such as global mortality under 5 years of age, gross domestic product per capita, and health expenditure per capita have been shown to correlate with poorer results after congenital cardiac surgery, adding another layer of complexity to this problem.<sup><xref ref-type="bibr" rid="B3">3</xref></sup> The Global Burden of Disease study showed that the rank of CHD increased from 17th to 11th in low-socio-demographic index countries between 1990 to 2017, and among the 261,247 deaths caused by CHD in 2017 worldwide, 180,624 were infants, with the majority occurring in countries with lower socio-demographic index.<sup><xref ref-type="bibr" rid="B4">4</xref></sup> Health system issues such as poor access, lack of adequately trained professionals, and limited technical resources are obstacles to proper care of this population in low- and middle-income countries (LMIC). Healthcare structures in developing countries often have many small centers that run in parallel and mixtures of private and public health services, making it difficult to achieve better results, since center volume has also been previously shown to correlate with surgical outcomes.<sup><xref ref-type="bibr" rid="B5">5</xref></sup> In addition, proper care for these complex children requires specialized training that relies on the integration of multidisciplinary knowledge from pediatric cardiology, pediatric critical care, and neonatology, as well as behavioral skills for effective teamwork. Currently, children with cardiac issues outnumber specialists.<sup><xref ref-type="bibr" rid="B6">6</xref>-<xref ref-type="bibr" rid="B11">11</xref></sup> Moreover, general pediatricians&#8217; knowledge of pediatric cardiology may often be insufficient for optimal management of this population.<sup><xref ref-type="bibr" rid="B12">12</xref>-<xref ref-type="bibr" rid="B14">14</xref></sup> These facts, combined with the heterogeneous distribution of medical subspecialists,<sup><xref ref-type="bibr" rid="B15">15</xref></sup> make it essential to train professionals involved in the care of critically ill cardiac children.</p>
      <p>Nevertheless, developing a trained cohort of providers is particularly difficult in LMIC, and the best way to properly train professionals for the care of critical cardiac children in LMIC is still knowledge gap due to the scarcity of research in the field (<xref ref-type="table" rid="t1">Table 1</xref>). Education practice is not always based on current evidence for best practices, and passive knowledge transmission and uni-professional teaching are still the rule. Many professionals work in more than one center, which makes time and financial constraints obstacles to proper training. Language is also a barrier, as most international initiatives that are available online cannot be used in non-English speaking countries. Healthcare structure is another obstacle; there are many low-volume centers which may not be able to offer enough patient exposure for adequate training. Moreover, heterogeneous distribution of training centers within countries with large territories may limit access to proper training, and a standardized curriculum has yet to be developed or adapted. In addition, late presentation of CHD is more common in LMIC, due to lack of diagnosis and healthcare access, and usual training may not adequately prepare providers to deal with these patients (Central Illustration). This paper aims to investigate how these obstacles can be overcome in LMIC, with a special focus on the Brazilian scenario, looking into the literature on teaching and training in pediatric cardiac critical care (PCCC) from the perspective of adult-learning theory. For that purpose, we searched the following databases: Pubmed, Wiley, Ovid, and Google Scholar; the terms used include "pediatric cardiac intensive care" and ("teaching" or "training" or "curriculum" or "medical education"). We also performed a manual search of references from original studies and review articles to identify any additional relevant studies.</p>
      <table-wrap id="t1">
        <label>Table 1</label>
        <caption>
          <title>Examples of education and training in PCCC</title>
        </caption>
        <table frame="hsides" rules="groups">
          <colgroup width="17%">
            <col/>
            <col/>
            <col/>
            <col/>
            <col/>
            <col/>
          </colgroup>
          <thead style="border-top: thin solid; border-bottom: thin solid; border-color: #000000">
            <tr style="background-color:#8DC4E6">
              <th align="left" valign="middle" colspan="6">LMIC&#8217; experiences</th>
            </tr>
          </thead>
          <tbody style="border-bottom: thin solid; border-color: #000000">
            <tr>
              <td align="left" valign="top">Study, year</td>
              <td align="center" valign="top">Design</td>
              <td align="center" valign="top">Population</td>
              <td align="center" valign="top">Setting</td>
              <td align="center" valign="top">Teaching methods</td>
              <td align="center" valign="top">Findings</td>
            </tr>
            <tr style="background-color:#D2E6F5">
              <td align="left" valign="top">Maheshwari et al., 2015<sup><xref ref-type="bibr" rid="B48">48</xref></sup></td>
              <td align="center" valign="top">Prospective cohort study</td>
              <td align="center" valign="top">231 pediatric cardiology trainees</td>
              <td align="center" valign="top">Online platform from India</td>
              <td align="center" valign="top">Video lessons <break/>Online synchronous lessons <break/>Library <break/>Self-assessment tests</td>
              <td align="center" valign="top">Improvement in self-reported knowledge and skills</td>
            </tr>
            <tr>
              <td align="left" valign="top">Oliveira et al., 2017<sup><xref ref-type="bibr" rid="B52">52</xref></sup></td>
              <td align="center" valign="top">Prospective cohort study</td>
              <td align="center" valign="top">62 healthcare professionals</td>
              <td align="center" valign="top">Online platform from Brazil/Portugal</td>
              <td align="center" valign="top">Video lessons</td>
              <td align="center" valign="top">Knowledge improvement assessed via pre- and post-tests</td>
            </tr>
            <tr style="background-color:#D2E6F5">
              <td align="left" valign="top">Borim BC et al., 2017<sup><xref ref-type="bibr" rid="B47">47</xref></sup></td>
              <td align="center" valign="top">Prospective single-center cohort study</td>
              <td align="center" valign="top">29 nursing technicians</td>
              <td align="center" valign="top">Pediatric cardiac intensive care unit in South America</td>
              <td align="center" valign="top">Video lessons</td>
              <td align="center" valign="top">Knowledge improvement assessed via pre- and post-tests</td>
            </tr>
            <tr>
              <td align="left" valign="top">Emani et al., 2018<sup><xref ref-type="bibr" rid="B60">60</xref></sup></td>
              <td align="center" valign="top">Prospective single-center cohort study</td>
              <td align="center" valign="top">23 members of a multidisciplinary team</td>
              <td align="center" valign="top">Pediatric cardiac intensive care unit in Southeast Asia</td>
              <td align="center" valign="top">Interactive discussions <break/>Simulation-based training</td>
              <td align="center" valign="top">Improvement in team dynamics <break/>Decreased time to intervention in simulation scenarios</td>
            </tr>
            <tr style="background-color:#D2E6F5">
              <td align="left" valign="top">Pilan et al., 2022<sup><xref ref-type="bibr" rid="B44">44</xref></sup></td>
              <td align="center" valign="top">Retrospective single-center study</td>
              <td align="center" valign="top">68 members of a multidisciplinary team</td>
              <td align="center" valign="top">Pediatric cardiac intensive care unit in South America</td>
              <td align="center" valign="top">Simulation-based training</td>
              <td align="center" valign="top">Improvement in self-reported knowledge, skills, and comfort related to resuscitation <break/>Decreased mortality for ECMO patients</td>
            </tr>
            <tr style="background-color:#8DC4E6">
              <td align="left" valign="top" colspan="6">High-income countries&#8217; experiences</td>
            </tr>
            <tr>
              <td align="left" valign="top">Study, year</td>
              <td align="center" valign="top">Design</td>
              <td align="center" valign="top">Population</td>
              <td align="center" valign="top">Setting</td>
              <td align="center" valign="top">Teaching methods</td>
              <td align="center" valign="top">Findings</td>
            </tr>
            <tr style="background-color:#D2E6F5">
              <td align="left" valign="top">Allan et al., 2010<sup><xref ref-type="bibr" rid="B61">61</xref></sup></td>
              <td align="center" valign="top">Prospective single-center cohort study</td>
              <td align="center" valign="top">182 members of a multidisciplinary team</td>
              <td align="center" valign="top">Pediatric cardiac intensive care unit in North America</td>
              <td align="center" valign="top">Game play <break/>Didactic lessons <break/>Simulation-based training</td>
              <td align="center" valign="top">Improvement in preparedness to participate in emergency care <break/>Diminished levels of anxiety in entering a code event</td>
            </tr>
            <tr>
              <td align="left" valign="top">Kane et al., 2011<sup><xref ref-type="bibr" rid="B73">73</xref></sup></td>
              <td align="center" valign="top">Prospective single-center cohort study</td>
              <td align="center" valign="top">65 nurses</td>
              <td align="center" valign="top">Pediatric cardiac intensive care unit in North America</td>
              <td align="center" valign="top">Simulation-based training</td>
              <td align="center" valign="top">Improvement in self-reported knowledge, skills, and comfort related to resuscitation</td>
            </tr>
            <tr style="background-color:#D2E6F5">
              <td align="left" valign="top">Figueroa et al., 2013<sup><xref ref-type="bibr" rid="B74">74</xref></sup></td>
              <td align="center" valign="top">Prospective single-center cohort study</td>
              <td align="center" valign="top">37 members of a multidisciplinary team</td>
              <td align="center" valign="top">Pediatric cardiac intensive care unit in North America</td>
              <td align="center" valign="top">Didactic lessons <break/>Simulation-based training</td>
              <td align="center" valign="top">Improvement in team dynamics <break/>Improvement in confidence in participating in code events</td>
            </tr>
            <tr>
              <td align="left" valign="top">Su et al., 2014<sup><xref ref-type="bibr" rid="B75">75</xref></sup></td>
              <td align="center" valign="top">Retrospective single-center study</td>
              <td align="center" valign="top">Multidisciplinary team</td>
              <td align="center" valign="top">Pediatric cardiac intensive care unit in North America</td>
              <td align="center" valign="top">Simulation-based training</td>
              <td align="center" valign="top">Decreased extracorporeal cardiopulmonary resuscitation times in real patients</td>
            </tr>
            <tr style="background-color:#D2E6F5">
              <td align="left" valign="top">Campbel et al., 2015<sup><xref ref-type="bibr" rid="B76">76</xref></sup></td>
              <td align="center" valign="top">Retrospective single-center study</td>
              <td align="center" valign="top">7 nurses</td>
              <td align="center" valign="top">Pediatric cardiac intensive care unit in North America</td>
              <td align="center" valign="top">Didactic lessons <break/>Simulation-based training</td>
              <td align="center" valign="top">Improvement in self-reported knowledge, skills, and comfort related to resuscitation</td>
            </tr>
            <tr>
              <td align="left" valign="top">Villa et al., 2017<sup><xref ref-type="bibr" rid="B77">77</xref></sup></td>
              <td align="center" valign="top">Retrospective single-center study</td>
              <td align="center" valign="top">Members of a multidisciplinary team</td>
              <td align="center" valign="top">Pediatric cardiac intensive care unit and emergency department in North America</td>
              <td align="center" valign="top">Simulation-based training</td>
              <td align="center" valign="top">Identification of latent safety threats that led to practice changes</td>
            </tr>
            <tr style="background-color:#D2E6F5">
              <td align="left" valign="top">Brown et al., 2018<sup><xref ref-type="bibr" rid="B42">42</xref></sup></td>
              <td align="center" valign="top">Prospective multicenter interventional study</td>
              <td align="center" valign="top">30 nurses</td>
              <td align="center" valign="top">13 pediatric cardiac intensive care units in North America</td>
              <td align="center" valign="top">1 day simulation-based educational training boot camp</td>
              <td align="center" valign="top">Knowledge improvement assessed via pre- and post-tests <break/>Decreased time to intervention in simulation scenarios</td>
            </tr>
            <tr>
              <td align="left" valign="top">Di Nardo et al., 2018<sup><xref ref-type="bibr" rid="B43">43</xref></sup></td>
              <td align="center" valign="top">Retrospective single-center study</td>
              <td align="center" valign="top">Multidisciplinary team</td>
              <td align="center" valign="top">Pediatric intensive care unit in Europe</td>
              <td align="center" valign="top">Simulation-based training</td>
              <td align="center" valign="top">Decreased time to manage emergencies on ECMO in real patients</td>
            </tr>
            <tr style="background-color:#D2E6F5">
              <td align="left" valign="top">Tretter et al., 2020<sup><xref ref-type="bibr" rid="B46">46</xref></sup></td>
              <td align="center" valign="top">Retrospective study</td>
              <td align="center" valign="top">Global audience</td>
              <td align="center" valign="top">Online platform</td>
              <td align="center" valign="top">Video lessons</td>
              <td align="center" valign="top">Descriptive study of the implementation of Heart University</td>
            </tr>
            <tr>
              <td align="left" valign="top">Ralston et al., 2021<sup><xref ref-type="bibr" rid="B64">64</xref></sup></td>
              <td align="center" valign="top">Cross-sectional study</td>
              <td align="center" valign="top">6 attending physicians</td>
              <td align="center" valign="top">Pediatric cardiac intensive care unit in North America</td>
              <td align="center" valign="top">Virtual simulation</td>
              <td align="center" valign="top">Students&#8217; evaluation of the experience was positive</td>
            </tr>
            <tr style="background-color:#D2E6F5">
              <td align="left" valign="top">Nater et al.,2023<sup><xref ref-type="bibr" rid="B78">78</xref></sup></td>
              <td align="center" valign="top">Prospective single-center cohort study</td>
              <td align="center" valign="top">121 members of a multidisciplinary team</td>
              <td align="center" valign="top">Pediatric cardiac intensive care unit in North America</td>
              <td align="center" valign="top">Simulation-based training</td>
              <td align="center" valign="top">Improvement in self-reported knowledge, skills, and comfort related to resuscitation</td>
            </tr>
          </tbody>
        </table>
        <table-wrap-foot>
          <fn id="TFN1">
            <p>ECMO: extracorporeal membrane oxygenation; LMIC: low- and middle-income countries.</p>
          </fn>
        </table-wrap-foot>
      </table-wrap>
    </sec>
    <sec>
      <title>The subspecialty's history</title>
      <p>PCCC is a subspecialty characterized by high complexity and a variety of distinct physiologies and anatomies. Over recent decades, there has been a significant improvement in survival rates within this field. Heart conditions that were once considered lethal can now be palliated through univentricular approaches, and the expansion of mechanical circulatory support and pediatric heart transplantation has also significantly contributed to increased life expectancy in this population. Factors influencing these improved outcomes include a better understanding of various physiologies, advancements in surgical techniques and critical care, and specialized therapies provided by qualified professionals in multidisciplinary units dedicated exclusively to this population, following the example set by cardiac critical care in the adult population.<sup><xref ref-type="bibr" rid="B16">16</xref>-<xref ref-type="bibr" rid="B19">19</xref></sup> Units exclusively focused on critically ill cardiac children have shown a notable impact on mortality and morbidity indicators, such as the duration of mechanical ventilation and surgical site infection rates.<sup><xref ref-type="bibr" rid="B20">20</xref>,<xref ref-type="bibr" rid="B21">21</xref></sup> In a North American study, Horak and colleagues observed a higher rate of long-term mechanical circulatory support in units dedicated to managing pediatric cardiogenic shock, reflecting the need for high specialization in managing this therapeutic tool.<sup><xref ref-type="bibr" rid="B22">22</xref></sup></p>
      <p>Currently, there is significant heterogeneity in the profiles of medical professionals responsible for caring for this population, even within units dedicated exclusively to PCCC.<sup><xref ref-type="bibr" rid="B23">23</xref></sup> The optimal academic training pathway has been a subject of extensive discussion in the literature. Multiple manuscripts have addressed the question of which professions are best qualified to care for this population, a significant debate between pediatric cardiologists and pediatric intensivists.<sup><xref ref-type="bibr" rid="B24">24</xref>-<xref ref-type="bibr" rid="B28">28</xref></sup> The most recent answer has come from publications that emphasize that the pathway to the subspecialty may vary but should encompass competencies from both areas.<sup><xref ref-type="bibr" rid="B29">29</xref>-<xref ref-type="bibr" rid="B31">31</xref></sup> Dual board certification in pediatric critical care and pediatric cardiology fully covers both knowledge areas but is a costly and time-consuming route. Alternatives include initial training in one subspecialty, followed by an additional year that integrates competencies from the adjacent subspecialty. This format is already common in North America, with 26 additional year programs in PCCC.<sup><xref ref-type="bibr" rid="B32">32</xref>-<xref ref-type="bibr" rid="B34">34</xref></sup> Determining the expected competencies and entrustable professional activities for these professionals, regardless of their basic training, is essential to ensure proper care for these children. For this reason, there has been growing international momentum in recent years to officially establish the subspecialty before regulatory bodies.<sup><xref ref-type="bibr" rid="B32">32</xref>,<xref ref-type="bibr" rid="B35">35</xref>-<xref ref-type="bibr" rid="B37">37</xref></sup> In Brazil, there are few specialized centers with a high patient volume, and surgeons, intensivists, and cardiologists provide perioperative care at many smaller centers. Moreover, there is no formal curriculum standardization or official certification for the subspecialty in Brazil. Only a few centers offer this additional year of training in PCCC, with varying admission criteria and curricula, and many professionals who care for this population in intensive care units (ICUs) learn from practice and have not undergone proper formal training.</p>
      <sec>
        <title>Applying adult learning theories to improve PCCC training in LMIC</title>
        <p>Considering the specificities of PCCC training, determining the best way to operationalize skill-based training for this subspecialty has been a focal point of study over the last decade. Balancing work hours with the increasing amount of technical medical knowledge required for adequate care of this population can be challenging. The swift evolution of knowledge, which has improved child survival rates, has not been paralleled by an increase in time dedicated to clinical teaching and learning. Adding to this complexity, skills like leadership, conflict resolution, and teamwork are vital in such a multifaceted clinical setting, amplifying the required expertise for proficient professional practice.<sup><xref ref-type="bibr" rid="B38">38</xref></sup> Therefore, effective educational tools in this area should address time constraints, scheduling flexibility, clinical relevance, and accessibility, both financially and technologically.<sup><xref ref-type="bibr" rid="B39">39</xref>-<xref ref-type="bibr" rid="B41">41</xref></sup> Various training methods have shown promise in addressing these dilemmas. Face-to-face or online theoretical courses, isolated realistic simulation events, and intensive "boot camp" training styles are among the tools that have demonstrated feasibility, acceptance, and effectiveness in studies.<sup><xref ref-type="bibr" rid="B42">42</xref>-<xref ref-type="bibr" rid="B44">44</xref></sup></p>
        <p>Knowledge updating is vital in healthcare professions, and the recent proliferation of hybrid or exclusively online teaching tools has not only enhanced connections among healthcare professionals but also expanded opportunities for collaborative learning. Active teaching and learning methodologies share common goals: engaging adult learners within their social context, fostering both teamwork and social engagement, and integrating learners into a team. This ensures not only the acquisition and understanding of a concept but also its analysis, critical evaluation, and application in clinical practice, which are processes that align with Bloom's taxonomy of higher-order thinking skills (<xref ref-type="fig" rid="f2">Figure 1</xref>).<sup><xref ref-type="bibr" rid="B45">45</xref></sup></p>
        <fig id="f2">
          <label>Figure 1</label>
          <caption>
            <title>Bloom's Taxonomy.<sup><xref ref-type="bibr" rid="B45">45</xref></sup></title>
          </caption>
          <graphic xlink:href="2359-5647-ijcs-38-e20250049-50049-gf02.tif"/></fig>
        <p>Courses disseminating theoretical content are vital for PCCC training, as they may provide the basis for these higher-order skills and consequent better clinical practice. Asynchronous online learning allows students flexibility and self-pacing while preserving synchronous teacher-student interactions for knowledge construction rather than mere information transmission. Exemplary online courses and learning tools in basic pediatric cardiology have been described for both developing countries and a global landscape of multi-institutional collaboration.<sup><xref ref-type="bibr" rid="B46">46</xref>-<xref ref-type="bibr" rid="B49">49</xref></sup> Successful examples using online lessons to provide basic knowledge for professionals in LMIC have been published. An initiative in India focused on training pediatricians in pediatric cardiology, involving 231 students over 4 years, proved effective in enhancing professionals&#8217; confidence and clinical skills.<sup><xref ref-type="bibr" rid="B48">48</xref></sup> Although the language barrier mandates adaptations of these tools for use in Brazil, successful examples of the application of online tools to help learning and clinical management of patients within the country have been described. During the COVID-19 pandemic, the use of online intensive care tools and a tele-ICU program enabled the training of several healthcare professionals, as well as the remote clinical follow-up of critically ill patients admitted to ICUs throughout Brazil's vast territory.<sup><xref ref-type="bibr" rid="B50">50</xref>,<xref ref-type="bibr" rid="B51">51</xref></sup> In the pediatric cardiology field, a national study demonstrated the effectiveness of an asynchronous online course in basic pediatric cardiology training for 62 healthcare professionals, mainly pediatricians and neonatologists, in the Northeast Region of Brazil through an online asynchronous course based on video lessons that were able to provide knowledge, as shown by an increase from pre- to post-test average scores.<sup><xref ref-type="bibr" rid="B52">52</xref></sup></p>
        <p>Andragogy, according to Knowles, "the art and science of helping adults learn," is defined by six fundamental principles: the learner's need to know, preference for self-directed learning, the existence of learner's prior experiences, the adult's readiness to learn, problem-solving orientation, and motivation to learn.<sup><xref ref-type="bibr" rid="B53">53</xref></sup> Adult learners are independent, capable of self-direction, and interested in knowing in advance what they will learn, how they will learn it, and why it is essential.<sup><xref ref-type="bibr" rid="B54">54</xref>,<xref ref-type="bibr" rid="B55">55</xref></sup> The signification of the teaching-learning process is integral to meaningful adult education, and feeling acknowledgment is crucial. In an interesting example of this feature, Silva and colleagues showed how addressing feelings related to knowledge gaps in interpreting electrocardiograms before teaching may be an effective strategy to nurture this signification.<sup><xref ref-type="bibr" rid="B56">56</xref></sup> Structuring a standardized curriculum for PCCC training has been a multicenter effort in North America and a step towards better teaching for these fellows.<sup><xref ref-type="bibr" rid="B29">29</xref>-<xref ref-type="bibr" rid="B31">31</xref></sup> A standardized curriculum helps the learner know in advance what they will learn and how they will learn it, which are crucial features for an adult learner. Also, it may provide the student with guidance for what will be expected of them in the form of entrustable professional activities that the trainee is expected to perform by the end of training. There is currently no standardized curriculum for LMIC and no data about how centers that have advanced fellowship structure their programs. However, instead of simply adopting the North American curriculum, considerations should be made as how to better adapt it to the LMIC scenario, including training for managing late presentation cases and in lower resource situations.</p>
        <p>Kolb's learning theory states that adult learning occurs in a four-phase experiential cycle (<xref ref-type="fig" rid="f3">Figure 2</xref>). From this perspective, adult learning always begins with prior knowledge and is driven by concrete experiences, leading learners to seek alternatives or solutions to identified problems; therefore, any strategy that aims at education and training in the field must start by exploring students&#8217; concrete experiences and current knowledge to build on top of them. Simulation-based education is an example of how this theory can be applied; concrete and practical experiences can be provided in a controlled environment, enabling learning from errors and knowledge gaps without jeopardizing patient safety, which is especially crucial given the limited physiological reserve of this patient population. A recent systematic review highlighted the benefits of simulation and virtual reality in cardiology education, emphasizing patient safety while imparting knowledge.<sup><xref ref-type="bibr" rid="B57">57</xref>,<xref ref-type="bibr" rid="B58">58</xref></sup> In PCCC, successful examples have illustrated effective training for medical teams, nursing staff, and the entire multidisciplinary team in both developed and developing countries.<sup><xref ref-type="bibr" rid="B42">42</xref>,<xref ref-type="bibr" rid="B59">59</xref>,<xref ref-type="bibr" rid="B60">60</xref></sup> Theoretical learning complements behavioral learning, enhancing self-confidence and reducing anxiety during emergency care participation within a complex team setting.<sup><xref ref-type="bibr" rid="B61">61</xref></sup> A multi-institutional collaboration showcased how a simulation-based boot camp for nurses could enhance their technical knowledge and self-confidence.<sup><xref ref-type="bibr" rid="B42">42</xref></sup> However, potential barriers to implementing simulation in LMIC include costs, specific infrastructure needs, adequate professional training for simulation execution and debriefing, lack of awareness regarding simulation benefits, and psychological resistance.<sup><xref ref-type="bibr" rid="B52">52</xref></sup> Virtual simulation offers potential solutions to Brazil's vast territorial obstacles in providing adequate care to pediatric cardiac patients, although this is a model that has yet to be tested in practice. Immersion in a virtual environment can offer realistic experiences, augment knowledge, motivate learners, and boost their confidence in patient care.<sup><xref ref-type="bibr" rid="B62">62</xref>,<xref ref-type="bibr" rid="B63">63</xref></sup> Although it is currently used infrequently in PCCC, optimism surrounds its potential.<sup><xref ref-type="bibr" rid="B64">64</xref></sup> A successful example of the positive impact of simulation in LMIC was published by Emani et al., who assessed the effect of simulation on team dynamics and performance in 23 healthcare providers in a pediatric cardiac ICU in Southeast Asia via a training program based on multimedia lessons, interactive discussion sessions and four 1-hour scenario simulation sessions delivered over a 5-day period. Participants noted significant improvement in team dynamics and video analysis revealed a decrease in time to intervention and significant increase in frequency of closed-loop communication because of simulation training, showing that this is a feasible tool in LMIC.<sup><xref ref-type="bibr" rid="B60">60</xref></sup></p>
        <fig id="f3">
          <label>Figure 2</label>
          <caption>
            <title>Kolb's Learning Cycle.</title>
          </caption>
          <graphic xlink:href="2359-5647-ijcs-38-e20250049-50049-gf03.tif"/></fig>
        <p>Time constraint issues are another concern. In today's reality, the overwhelming load of information can hinder medical adult education. Sweller's cognitive load theory, which originated in the 1980s, remains relevant in this scenario,<sup><xref ref-type="bibr" rid="B65">65</xref></sup> offering insights to optimize the teaching-learning process. Cognitive load is categorized into intrinsic, extrinsic, and effective (<xref ref-type="fig" rid="f4">Figure 3</xref>). Intrinsic load pertains to the complexity of the information; extrinsic load is unrelated to the task, and effective load refers to the effort required to learn the task. Hence, educators should manage intrinsic load, optimize effective load, and minimize extrinsic load. Strategies to reduce extrinsic load involve purposeful tasks integrating diverse information sources and minimizing redundancy. Managing intrinsic load entails progressively presenting knowledge complexity and transitioning tasks from low to high fidelity based on learners&#8217; knowledge. Effective load optimization involves using varied tasks, applying contextual interference, and prompting learners to explain learned topics.<sup><xref ref-type="bibr" rid="B66">66</xref></sup> Managing cognitive load in the setting of limited time is key for success. Understanding Sweller's cognitive load theory may help develop a program that optimizes time and resources. An interesting example is the SimZones concept, where progressive complexity-based learning allows for cognitive load management.<sup><xref ref-type="bibr" rid="B67">67</xref></sup></p>
        <fig id="f4">
          <label>Figure 3</label>
          <caption>
            <title>Managing cognitive load according to Sweller's Theory.<sup><xref ref-type="bibr" rid="B65">65</xref></sup></title>
          </caption>
          <graphic xlink:href="2359-5647-ijcs-38-e20250049-50049-gf04.tif"/></fig>
        <p>Optimizing time and human resources is crucial for teaching PCCC in LMIC, since many healthcare providers work in more than one center, and there is rarely a protected teaching time. Collaboration among different centers for teaching and training these fellows may also optimize time and human resources and help mitigate the workload. Examples of collaboration include structuring a standardized curriculum that addresses the particularities of PCCC in LMIC (such as late diagnosis), shared online lectures, virtual simulations, and elective rotation that allows fellows to be exposed to practical training in different centers. In addition, online tools such as tele-ICU consultation and online courses are a possible way to overcome challenges posed by the continental size of Brazilian territory and assist clinical practice.<sup><xref ref-type="bibr" rid="B68">68</xref>-<xref ref-type="bibr" rid="B70">70</xref></sup> The only national initiative published in the field of PCCC outlined a continuous education program developed in a similar fashion, including a virtual learning environment allowing access to video classes and pre- and post- training theoretical evaluation questionnaires. The course enrolled 24 nursing technicians, and progress in knowledge was verified by an increase in the average test score before and after the lessons. The course was well-received by students, with high satisfaction rates, and 90% of the students showed interest in the use of technological training resources.<sup><xref ref-type="bibr" rid="B47">47</xref></sup></p>
        <p>Finally, twinning centers from different economic backgrounds has also been shown to be an effective way to improve personnel skills and outcomes such as surgical site infection.<sup><xref ref-type="bibr" rid="B69">69</xref>,<xref ref-type="bibr" rid="B71">71</xref>,<xref ref-type="bibr" rid="B72">72</xref></sup> These partnerships have the beneficial effects of knowledge transmission through exchange programs and visits to reference centers, in a train-the-trainers model. Another way these partnerships have helped disseminate knowledge is through clinical support and continuous education, through both weekly online rounds and scheduled online lectures. Visits to the developing country center from its twin hospital staff are also an opportunity for theoretical and practical training.</p>
      </sec>
    </sec>
    <sec sec-type="conclusions">
      <title>Conclusion</title>
      <p>Training healthcare professionals involved in the care of critically ill cardiac children is an essential step for establishing a better clinical practice, but it may be daunting in LMIC. These challenges may be overcome by means of collaboration between centers and the application of adult learning theory. Improving training quality can help enable these professionals to acquire and maintain the necessary knowledge, skills, and competencies to provide high-quality care to critically ill pediatric cardiac patients and their families.</p>
    </sec>
  </body>
  <back>
    <fn-group>
      <fn fn-type="financial-disclosure" id="fn1">
        <label>Sources of Funding</label>
        <p>There were no external funding sources for this study.</p>
      </fn>
      <fn fn-type="other" id="fn2">
        <label>Study Association</label>
        <p>This article is part of the thesis of Doctoral submitted by Carolina Vieira Campos, from Universidade de S&#227;o Paulo.</p>
      </fn>
      <fn fn-type="other" id="fn3">
        <label>Ethics Approval and Consent to Participate</label>
        <p>This article does not contain any studies with human participants or animals performed by any of the authors.</p>
      </fn>
      <fn fn-type="other" id="fn4">
        <label>Use of Artificial Intelligence</label>
        <p>The authors did not use any artificial intelligence tools in the development of this work.</p>
      </fn>
    </fn-group>
    <sec sec-type="data-availability" specific-use="data-in-article">
      <label>Availability of Research Data</label>
      <p>The underlying content of the research text is contained within the manuscript.</p>
    </sec>
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