<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2341-4545</journal-id>
<journal-title><![CDATA[GE-Portuguese Journal of Gastroenterology]]></journal-title>
<abbrev-journal-title><![CDATA[GE Port J Gastroenterol]]></abbrev-journal-title>
<issn>2341-4545</issn>
<publisher>
<publisher-name><![CDATA[Sociedade Portuguesa de Gastrenterologia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2341-45452024000200040</article-id>
<article-id pub-id-type="doi">10.1159/000530866</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[The Effect of Oral Simethicone in a Bowel Preparation in a Colorectal Cancer Screening Colonoscopy Setting: A Randomized Controlled Trial]]></article-title>
<article-title xml:lang="pt"><![CDATA[O efeito adicional do simeticone oral na preparação intestinal em colonoscopia de rastreio: estudo randomizado controlado]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[João]]></surname>
<given-names><![CDATA[Mafalda]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Areia]]></surname>
<given-names><![CDATA[Miguel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alves]]></surname>
<given-names><![CDATA[Susana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Elvas]]></surname>
<given-names><![CDATA[Luís]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Brito]]></surname>
<given-names><![CDATA[Daniel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Saraiva]]></surname>
<given-names><![CDATA[Sandra]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cadime]]></surname>
<given-names><![CDATA[Ana Teresa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Portuguese Oncology Institute of Coimbra Gastroenterology Department ]]></institution>
<addr-line><![CDATA[Coimbra ]]></addr-line>
<country>Portugal</country>
</aff>
<pub-date pub-type="pub">
<day>30</day>
<month>04</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>30</day>
<month>04</month>
<year>2024</year>
</pub-date>
<volume>31</volume>
<numero>2</numero>
<fpage>40</fpage>
<lpage>47</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S2341-45452024000200040&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S2341-45452024000200040&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S2341-45452024000200040&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction:  Current guidelines suggest adding oral simethicone to bowel preparation for colonoscopy. However, its effect on key quality indicators for screening colonoscopy remains unclear. The primary aim was to assess the rate of adequate bowel preparation in split-dose high-volume polyethylene glycol (PEG), with or without simethicone.  Methods:  This is an endoscopist-blinded, randomized controlled trial, including patients scheduled for colonoscopy after a positive faecal immunochemical test. Patients were randomly assigned to 4 L of PEG split dose (PEG) or 4 L of PEG split dose plus 500 mg oral simethicone (PEG + simethicone). The Boston Bowel Preparation Scale (BBPS) score, the preparation quality regarding bubbles using the Colon Endoscopic Bubble Scale (CEBuS), ADR, CIR, and the intra-procedural use of simethicone were recorded.  Results:  We included 191 and 197 patients in the PEG + simethicone group and the PEG group, respectively. When comparing the PEG + simethicone group versus the PEG group, no signi&#64257;cant differences in adequate bowel preparation rates (97%vs. 93%; p = 0.11) were found. However, the bubble scale score was signi&#64257;cantly lower in the PEG + simethicone group (0 [0] versus 2 [5], p &lt; 0.01), as well as intraprocedural use of simethicone (7% vs. 37%; p &lt; 0.01). ADR (62% vs. 61%; p = 0.86) and CIR (98% vs. 96%, p = 0.14) did not differ between both groups.  Conclusion:  Adding oral simethicone to a split-bowel preparation resulted in a lower incidence of bubbles and a lower intraprocedural use of simethicone but no further improvement on the preparation quality or ADR.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo  Introdução:  As normas de orientação atuais sugerem a adição de simeticone oral à preparação intestinal para colonoscopia. Contudo, o seu efeito nos indicadores de qualidade no âmbito da colonoscopia de rastreio não está comprovado. O objetivo principal foi avaliar a taxa de preparação adequada usando polietilenoglicol (PEG) em dose dividida com e sem simeticone oral.  Métodos:  Estudo randomizado controlado, cego para o endoscopista, incluindo doentes admitidos para colonoscopia após teste fecal imunoquímico positivo. Os doentes foram aleatoriamente alocados para 4 litros de PEG em dose dividida (PEG) ou 4 litros de PEG em dose divida + simeticone oral (PEG + simeticone). Foram avaliados: Boston Bowel Preparation Scale (BBPS), qualidade da preparação relativa às bolhas através da Colon Endoscopic Bubble Scale (CEBuS) scale, ADR, CIR e uso de simeticone durante o procedimento.  Resultados:  Foram incluídos 191 e 197 doentes nos grupos PEG + simeticone e PEG, respetivamente. Comparando os grupos PEG + simeticone versus PEG, não se registaram diferenças de signi&#64257;cado estatístico relativamente à taxa de preparação intestinal adequada (97% vs. 93%; p = 0,01) mas o score da escala de bolhas foi signi&#64257;cativamente inferior no grupo PEG + simeticone [0 (0) versus 2 (5), p &lt; 0.01], assim como uso de simeticone durante o procedimento (7% vs. 37%; p &lt; 0,01). A ADR (62% vs. 61%; p = 0,86) e a CIR (98% vs. 96%, p = 0,14) não diferiram signi&#64257;cativamente entre os dois grupos, respetivamente.  Discussão/Conclusão:  Adicionar simeticone oral à preparação intestinal em dose dividida permitiu menor incidência de bolhas e menor utilização de simeticone durante o procedimento, mas não se associa a melhor preparação intestinal ou melhor ADR.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Colorectal cancer]]></kwd>
<kwd lng="en"><![CDATA[Screening]]></kwd>
<kwd lng="en"><![CDATA[Bowel preparation]]></kwd>
<kwd lng="en"><![CDATA[Simethicone]]></kwd>
<kwd lng="pt"><![CDATA[Cancro colorretal]]></kwd>
<kwd lng="pt"><![CDATA[Rastreio]]></kwd>
<kwd lng="pt"><![CDATA[Preparação intestinal]]></kwd>
<kwd lng="pt"><![CDATA[Simeticone]]></kwd>
</kwd-group>
</article-meta>
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