<?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>S2341-45452021000300162</article-id>
<article-id pub-id-type="doi">10.1159/000511528</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Peroral Endoscopic Myotomy for Esophageal Achalasia in Portugal: Outcomes of the First Prospective Series]]></article-title>
<article-title xml:lang="pt"><![CDATA[Miotomia endoscópica peroral na acalásia em Portugal: Resultados da primeira série prospectiva]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mendo]]></surname>
<given-names><![CDATA[Rui]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barreiro]]></surname>
<given-names><![CDATA[Pedro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodrigues]]></surname>
<given-names><![CDATA[José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Félix]]></surname>
<given-names><![CDATA[Catarina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[O'Neill]]></surname>
<given-names><![CDATA[Catarina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carina]]></surname>
<given-names><![CDATA[Iala]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chivia]]></surname>
<given-names><![CDATA[Joyce]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chagas]]></surname>
<given-names><![CDATA[Cristina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro Hospitalar Lisboa Ocidental Hospital de Egas Moniz Department of Gastroenterology]]></institution>
<addr-line><![CDATA[Lisbon ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital dos Lusíadas Department of Gastroenterology ]]></institution>
<addr-line><![CDATA[Lisbon ]]></addr-line>
<country>Portugal</country>
</aff>
<pub-date pub-type="pub">
<day>30</day>
<month>06</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>30</day>
<month>06</month>
<year>2021</year>
</pub-date>
<volume>28</volume>
<numero>3</numero>
<fpage>162</fpage>
<lpage>169</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S2341-45452021000300162&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S2341-45452021000300162&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S2341-45452021000300162&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Background:  Peroral endoscopic myotomy (POEM) is an innovative achalasia treatment procedure that involves myotomy of the lower esophageal sphincter through a submucosal tunneling approach, combining the efficacy of surgical myotomy with the benefit of being a less invasive treatment. At this time, no data are available of POEM in Portugal. This study aimed to examine the safety and short-term outcomes of POEM in a Portuguese center.  Methods: Fifty POEM were performed on 49 consecutive patients at our institution between January 2017 and January 2020. A prospective study of a consecutive series of patients was conducted, including procedure time, myotomy location and length, adverse events and clinical success. An Eckardt score of &#8804;3 after POEM was deemed as a successful outcome. Gastroesophageal reflux disease (GERD) was evaluated based on symptoms and on upper endoscopy, which was performed at 3-6 months postoperatively to check for reflux esophagitis.  Results: POEM was successfully completed in all cases: 70% (n = 35) were naïve and 30% (n = 15) had previous treatments. The mean procedure time was 73.4 ± 22.6 min (range 45-125 min). There were no major adverse events. Minor adverse events were rare (8%), and there was no perioperative mortality. The Eckardt score significantly decreased from 6.9 ± 2.4 preoperatively to 0.5 ± 1.0 postoperatively (p &lt; 0.05). Overall clinical success was documented in 98, 98 and 95.2% at 1, 3 and 6 months, respectively. These short-term outcomes after POEM were independent of previous treatments. Symptomatic GERD was seen in 22.4% of patients.  Conclusions: Our results confirm the safety and excellent short-term efficacy of POEM in a Portuguese center. This supports POEM as one of the first-line achalasia therapies in Portugal when performed by experienced operators.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo:  Introdução:  A miotomia endoscópica peroral (POEM) é um procedimento terapêutico inovador da acalásia que envolve a miotomia do esfíncter esofágico inferior através de uma abordagem por tunelização da submucosa, combinando a eficácia da miotomia cirúrgica com o benefício de ser um tratamento menos invasivo. Atualmente não existem dados disponíveis relativamente à aplicação do POEM em Portugal. Este estudo teve como objetivos examinar a segurança e os resultados a curto-prazo do POEM num centro português.  Métodos: Cinquenta POEM foram realizados em 49 doentes consecutivos na nossa instituição entre Janeiro 2017 e Janeiro 2020. Foi realizado um estudo prospetivo numa série consecutiva de doentes, incluindo tempo do procedimento, localização e extensão da miotomia, eventos adversos e sucesso clínico. O sucesso clínico foi definido como um score de Eckardt &#8804;3 após o procedimento. A doença do refluxo gastroesofágico (DRGE) foi avaliada com base na sintomatologia e na realização de endoscopia alta entre os 3 e 6 meses pós-procedimento.  Resultados: O POEM foi realizado com sucesso em todos os casos: 70% (n = 35) eram naïves e 30% (n = 15) já tinham realizado algum tratamento previamente. O tempo médio do procedimento foi de 73.4 ± 22.6 min (intervalo 45-125 min). Não se verificou nenhum evento adverso major. Os eventos adversos minor foram raros (8%) e não se verificou mortalidade perioperatória. O score de Eckardt diminuiu significativamente de 6.9 ± 2.4 pré-procedimento para 0.5 ± 1.0 pós-procedimento (p &lt; 0.05). Verificou-se sucesso clínico global em 98, 98 e 95.2% ao 1, 3 e 6 mês pós-procedimento, respetivamente. Estes resultados após o procedimento foram independentes de tratamentos prévios. Sintomatologia sugestiva de DRGE foi observada em 22.4% dos doentes pós-procedimento.  Conclusões: Os resultados confirmam a segurança e a excelente eficácia no curto-prazo do POEM num centro português, suportando o POEM como uma das terapêuticas de primeira linha para a acalásia em Portugal quando realizada por operadores experientes.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Achalasia]]></kwd>
<kwd lng="en"><![CDATA[Peroral endoscopic myotomy]]></kwd>
<kwd lng="pt"><![CDATA[Acalásia]]></kwd>
<kwd lng="pt"><![CDATA[Miotomia endoscópica peroral]]></kwd>
</kwd-group>
</article-meta>
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