<?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>S2341-45452023000500033</article-id>
<article-id pub-id-type="doi">10.1159/000526126</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Postcolonoscopy Colorectal Cancer in a Referral Center for Colorectal Cancer: Prevalence and Risk Factors]]></article-title>
<article-title xml:lang="pt"><![CDATA[Prevalência e fatores de risco para o cancro colorretal pós-colonoscopia: Experiência de um centro de referência]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gonçalves]]></surname>
<given-names><![CDATA[Margarida Gomes]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[Joana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carvalho]]></surname>
<given-names><![CDATA[Tânia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Costa]]></surname>
<given-names><![CDATA[Dalila]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gonçalves]]></surname>
<given-names><![CDATA[Raquel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rebelo]]></surname>
<given-names><![CDATA[Ana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Braga Hospital Gastroenterology Department ]]></institution>
<addr-line><![CDATA[Braga ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,University of Minho School of Medicine ]]></institution>
<addr-line><![CDATA[Braga ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,University of Minho School of Medicine Life and Health Sciences Research Institute (ICVS)]]></institution>
<addr-line><![CDATA[Braga ]]></addr-line>
<country>Portugal</country>
</aff>
<pub-date pub-type="pub">
<day>30</day>
<month>10</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>30</day>
<month>10</month>
<year>2023</year>
</pub-date>
<volume>30</volume>
<numero>5</numero>
<fpage>33</fpage>
<lpage>41</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S2341-45452023000500033&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S2341-45452023000500033&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S2341-45452023000500033&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background and Aims:  Colonoscopy is effective to detect and remove colorectal lesions. However, after a negative colonoscopy, cancers could be detected during the interval follow-up. This study was designed to identify characteristics and risk factors for postcolonoscopy colorectal cancer - interval type.  Methods:  Medical records of individuals who were newly diagnosed with colorectal cancer between January 2018 and December 2019 were reviewed. Clinical, demographic, and endoscopic variables were analyzed. Those with the diagnosis of colorectal cancer between two consecutive colonoscopies performed within the appropriated surveillance range were considered to have postcolonoscopy colorectal cancer - interval type. A comparison between the group of patients with non-postcolonoscopy colorectal cancer - interval type and the group of patients with post-colonoscopy colorectal cancer - interval type was then performed.  Results:  During the study period, 491 patients were newly diagnosed with colorectal cancer. Among them, 61 (12.4%) had postcolonoscopy colorectal cancer - interval subtype. Postcolonoscopy colorectal cancer - interval type was three times more prevalent on the proximal colon (p = 0.014) and was associated with the presence of two or more cardiovascular risk factors (aOR = 4.25; p = 0.016), cholecystectomy in the past (aOR = 10.09; p = 0.019), and family history of colorectal cancer on a first-degree relative (aOR = 4.25; p = 0.006). Moreover, isolated cardiovascular risk factors revealed a protective effect for the absence of all cardiovascular risk factors (aOR = 20; p = 0.034). The ROC curve associated with the multivariate model revealed a predictive power of 77.8% (p &lt; 0.001).  Conclusions:  Postcolonoscopy colorectal cancer - interval type is more common in the proximal colon and in patients with a family history (first-degree relative) of colorectal cancer, two or more cardiovascular risk factors, and a history of cholecystectomy. All of these are easily detectable in clinical practice and may be of extreme importance in the control of postcolonoscopy colorectal cancer in the near future.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo  Introdução:  A colonoscopia é eficaz a detetar e remover lesões do colon e reto. Contudo, após uma colonoscopia normal, podem ser detetadas neoplasias durante o intervalo de vigilância recomendado entre colonoscopias. O objetivo do estudo foi identificar características e fatores de risco para o desenvolvimento de cancro colorretal pós-colonoscopia - subtipo de intervalo.  Material e Métodos:  Estudo retrospetivo e unicêntrico realizado entre janeiro de 2018 e dezembro de 2019 que incluiu todos os doentes diagnosticados de novo com cancro colorretal. Variáveis clínicas, demográficas e endoscópicas foram obtidas após consulta do processo clínico. Doentes com diagnóstico de cancro colorretal entre duas colonoscopias consecutivas, realizadas no intervalo de vigilância recomendado, foram considerados como tendo cancro colorretal pós-colonoscopia - subtipo de intervalo. Foi, então, realizada a comparação entre o grupo de doentes com cancro color-retal não pós colonoscopia - subtipo de intervalo e o grupo de doentes com cancro colorretal pós colonoscopia - subtipo de intervalo.  Resultados:  Durante o período de estudo, 491 doentes foram diagnosticados de novo com cancro colorretal. Destes, 61 (12.4%) foram considerados como tendo cancro colorretal pós-colonoscopia - subtipo de intervalo. O cancro colorretal pós-colonoscopia - subtipo de intervalo foi três vezes mais prevalente no colon proximal (p = 0.014) e associou-se a presença de dois ou mais fatores de risco cardiovasculares (aOR = 0.45; p = 0.016), colecistectomia no passado (aOR = 10.09; p = 0.0.19) e história familiar de cancro colorretal num familiar de primeiro grau (aOR = 4.25; p = 0.006). Aquando da análise dos fatores de risco cardiovasculares isolados, observou-se um fator protetor aquando da ausência de to-dos os fatores de risco cardiovasculares (aOR = 20; p = 0.034). A curva ROC associada ao modelo multivariado revelou um poder preditivo de 77.8% (p &lt; 0.001).  Conclusão:  O cancro colorretal pós-colonoscopia - subtipo de intervalo é mais comum no colon proximal e em doentes com história familiar (em familiares de primeiro grau) de cancro colorretal, dois ou mais fatores de risco cardiovasculares e história de colecistectomia. Todos estes fatores de risco são facilmente detetáveis na prática clínica e podem ser de extrema importância no controlo, a curto e longo prazo, do cancro colorretal pós-colonoscopia.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Colorectal cancer]]></kwd>
<kwd lng="en"><![CDATA[Postcolonoscopy colorectal cancer]]></kwd>
<kwd lng="en"><![CDATA[Colonoscopy]]></kwd>
<kwd lng="pt"><![CDATA[Cancro colorretal]]></kwd>
<kwd lng="pt"><![CDATA[Cancro colorretal pós-colonoscopia]]></kwd>
<kwd lng="pt"><![CDATA[Colonoscopia]]></kwd>
</kwd-group>
</article-meta>
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