<?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>S2341-45452024000400012</article-id>
<article-id pub-id-type="doi">10.1159/000530684</article-id>
<title-group>
<article-title xml:lang="pt"><![CDATA[Preditores de prognóstico nos Tumores Neuroendócrinos Gástricos: um estudo retrospetivo]]></article-title>
<article-title xml:lang="en"><![CDATA[Predictors of Outcomes in Gastric Neuroendocrine Tumors: A Retrospective Cohort]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ortigão]]></surname>
<given-names><![CDATA[Raquel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Afonso]]></surname>
<given-names><![CDATA[Luís Pedro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pimentel-Nunes]]></surname>
<given-names><![CDATA[Pedro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
<xref ref-type="aff" rid="A a"/>
<xref ref-type="aff" rid="A5"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Dinis-Ribeiro]]></surname>
<given-names><![CDATA[Mário]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Libânioa]]></surname>
<given-names><![CDATA[Diogo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Portuguese Oncology Institute of Porto Gastroenterology Department ]]></institution>
<addr-line><![CDATA[Porto ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Portuguese Oncology Institute of Porto Department of Pathology ]]></institution>
<addr-line><![CDATA[Porto ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,University of Porto (FMUP) Faculty of Medicine Department of Surgery and Physiology]]></institution>
<addr-line><![CDATA[Porto ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Porto Comprehensive Cancer Center (Porto.CCC) RISE@CI-IPOP (Health Research Network, IPO Porto) ]]></institution>
<addr-line><![CDATA[Porto ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Unilabs Portugal  ]]></institution>
<addr-line><![CDATA[Porto ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="Af6">
<institution><![CDATA[,University of Porto Faculty of Medicine MEDCIDS]]></institution>
<addr-line><![CDATA[Porto ]]></addr-line>
<country>Portugal</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2024</year>
</pub-date>
<volume>31</volume>
<numero>4</numero>
<fpage>12</fpage>
<lpage>21</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S2341-45452024000400012&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S2341-45452024000400012&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S2341-45452024000400012&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo  Introdução/Objetivo:  Os tumores neuroendócrinos gástricos (TNEs-G) têm frequentemente um curso indolente, apesar do seu potencial metastático. O objetivo deste trabalho foi identi&#64257;car fatores de prognóstico associados à sobrevida global e à metastização nos doentes com TNEs-G e avaliar o impacto da análise seriada de cromogranina A (CgA).  Methods:  Estudo retrospectivo in-cluindo doentes consecutivos admitidos por TNE-G entre 2010 e 2019, com um follow-up mínimo de 1 ano. Foi realizada análise univariada e multivariada.  Results:  Foram incluídos 132 doentes com TNE-G (Tipo I, 113 doentes; Tipo II, 1 doente; Tipo III, 14 doentes; Tipo IV, 2 doentes; Não classi&#64257;cável, 2 doentes), sendo 61% mulheres, com idade média de 66 anos. Durante o periodo de follow-up (mediana 66 meses), 3 (2.3%) doentes faleceram por doença metastática (1 doente com Tipo III e 2 com Tipo IV). O sexo masculino (p = 0,030), tipo III/IV (p &lt; 0,001), Ki-67 index &gt;20% (p &lt; 0,001), Grau 2/3 (p &lt; 0,001), invasão além da submucosa (p &lt; 0,001) e presença de metástases (p &lt; 0,001) foram identi&#64257;cados como fatores de risco para mortalidade na análise univariada. Sete doentes desenvolveram metástases (5,3%). A análise multivariáda revelou que o Ki-67 &gt;20% (p = 0,016) era um factor de risco independente para metastização. Globalmente, a CgA mostrou uma sensibilidade de de-tecção de recorrência de 20% e uma especi&#64257;cidade de 79% (sensibilidade de 8% e especi&#64257;cidade de 71% em em TNEs-G do Tipo I).  Conclusão:  A identi&#64257;cação dos fatores de risco para a presença de metástases e para a mortalidade neste grupo de pacientes pode ajudar a individualizar a estratégia terapêutica. A CgA parece ser um marcador fraco para a monitorização de doentes com TNEs-G.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction/Aim:  Gastric neuroendocrine tumors (GNETs) frequently have an indolent clinical course, despite their metastatic potential. The aim of the study was to identify prognostic factors associated with overall survival and risk of metastases and to evaluate the impact of serial measurements of chromogranin A (CgA).  Methods:  The authors performed a retrospective cohort study including consecutive patients with GNET diagnosed between 2010 and 2019, with a minimum follow-up of 1 year. Univariate and multivariate analyses were performed.  Results:  We included 132 patients with GNET (type I, 113 patients; type II, 1 patient; type III, 14 patients; type IV, 2 patients; not classi&#64257;able, 2 patients), with 61% being female and a mean age at diagnosis of 66 years. During the follow-up period (median 66 months), 3 (2.3%) patients died due to metastatic disease (1 patient with type III and 2 patients with type IV). Male gender (p = 0.030), type III/IV (p &lt; 0.001), Ki-67 index &gt;20% (p &lt; 0.001), grade 2/3 (p &lt; 0.001), invasion beyond the submucosa (p &lt; 0.001), and presence of metastases (p &lt; 0.001) were identi&#64257;ed as risk factors for mortality in the univariate analysis. Metastasis developed in 7 patients (5.3%). Multivariable analysis revealed that Ki-67 &gt;20%(p = 0.016) was an independent risk factor for metastasis. Overall, CgA showed a sensitivity of 20% for detection of recurrence and a speci&#64257;city of 79% (sensitivity of 8% and speci&#64257;city of 71% in type I GNETs).  Conclusion:  Identi&#64257;cation of risk factors for the presence of metastases and for mortality in these groups of patients can help in individualizing the therapeutic strategy. CgA seems to be a weak marker for monitoring patients with GNET. © 2023 The Author(s).]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Gastric neuroendocrine tumors]]></kwd>
<kwd lng="en"><![CDATA[Endoscopic resection]]></kwd>
<kwd lng="en"><![CDATA[Chromogranin A]]></kwd>
<kwd lng="pt"><![CDATA[Tumores neuroendócrinos gástricos]]></kwd>
<kwd lng="pt"><![CDATA[Resseção endoscópica]]></kwd>
<kwd lng="pt"><![CDATA[Cromogranina A]]></kwd>
</kwd-group>
</article-meta>
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