<?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>2444-054X</journal-id>
<journal-title><![CDATA[Cirugía y cirujanos]]></journal-title>
<abbrev-journal-title><![CDATA[Cir. cir.]]></abbrev-journal-title>
<issn>2444-054X</issn>
<publisher>
<publisher-name><![CDATA[Academia Mexicana de Cirugía A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2444-054X2022000700096</article-id>
<article-id pub-id-type="doi">10.24875/ciru.21000172</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Análisis de supervivencia y rasgos clinicopatológicos en pacientes intervenidos de metástasis hepáticas de cáncer colorrectal según el margen de resección]]></article-title>
<article-title xml:lang="en"><![CDATA[Analysis of survival and clinicopathological characteristics in patients after liver resection for colorectal liver metastases according to resection margin]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Casas-Sicilia]]></surname>
<given-names><![CDATA[Estefanía]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Jiménez-Bernadó]]></surname>
<given-names><![CDATA[Alfredo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Jaime-Sánchez]]></surname>
<given-names><![CDATA[Adrián]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gracia-Solanas]]></surname>
<given-names><![CDATA[José A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Palacios-Gasos]]></surname>
<given-names><![CDATA[Pilar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Borrego-Estella]]></surname>
<given-names><![CDATA[Vicente M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Clínico Universitario Lozano Blesa Sección de Cirugía Hepatobiliopancreática Servicio de Cirugía General y del Aparato Digestivo]]></institution>
<addr-line><![CDATA[Zaragoza ]]></addr-line>
<country>España</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2022</year>
</pub-date>
<volume>90</volume>
<fpage>96</fpage>
<lpage>107</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2444-054X2022000700096&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2444-054X2022000700096&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2444-054X2022000700096&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Antecedentes: El avance en oncología ha contribuido a ampliar las indicaciones quirúrgicas de las metástasis hepáticas (MH) del carcinoma colorrectal (CCR).  Objetivo: Analizar las diferencias en la supervivencia global (SG) y en determinadas características clinicopatológicas entre pacientes con resección R0 (margen tumoral &gt; 1 mm) y R1 (margen &lt; 1 mm).  Método: Estudio retrospectivo con 144 pacientes con MH de CCR intervenidos con intención curativa entre 2010 y 2018, divididos en dos grupos en función del margen de resección (R0 y R1). Se comparan la SG y 17 características clinicopatológicas.  Resultados: Ambos grupos son homogéneos y comparables en todas las variables estudiadas: edad (p = 0.158), sexo (p = 0.675), ASA (p = 0.502), localización del CCR (p = 0.793), estadio tumoral (p = 0.280), quimioterapia (QT) adyuvante poscolectomía (p = 0.664), sincronicidad (p = 0.983) y localización (p = 0.078) de las MH, CEA al diagnóstico (p = 0.735), QT neoadyuvante (p = 0.403), hepatectomía mayor/menor (p = 0.415), complicaciones (p = 0.822) y mortalidad posoperatorias (p = 0.535), estancia media (p = 0.960), QT adyuvante poshepatectomía (p = 0.791) y nueva hepatectomía (p = 0.530). Tampoco se observaron diferencias significativas en la SG a 1, 3 y 5 años (p = 0.160) entre pacientes con resección R0 y R1.  Conclusiones: Consideramos indicada la hepatectomía en pacientes con MH resecables con posibilidad de conseguir resecciones R0 manteniendo suficiente remanente hepático, independientemente de la afectación microscópica final del margen tumoral.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background: Criteria for resectability of colorectal liver metastases (CRLM) have been expanded over the last decade along with the improvement in chemotherapy.  Objective: Analyze the differences in several clinicopathological characteristics and overall survival (OS) between patients who underwent an R0 (tumour margin &gt; 1 mm) or R1 (margin &lt; 1 mm) resection.  Method: Retrospective study including 144 patients with CRLM who underwent a potentially curative liver surgery between 2010 and 2018. Patients are classified according to their surgical margin status (R0 or R1). OS and 17 clinicopathological variables are compared.  Results: Both groups are similar and comparable in all the studied variables: age (p = 0.158), sex (p = 0.675), ASA (p = 0.502), tumour location (p = 0.793), tumoral stadium (p = 0.280), post-colectomy chemotherapy (p = 0.664), CRLM synchronicity (p = 0.983) and location (p = 0.078), CEA at diagnosis (p = 0.735), neoadjuvant chemotherapy (p = 0.403), minor/major hepatectomy (p = 0.415), post-operatory complications (p = 0.822) and mortality (p = 0.535), average hospital stay (p = 0.960), post-operative chemotherapy (p = 0.791) and re-hepatectomy (p = 0.530). No significant differences are found in OS a 1, 3 and 5 years (p = 0.160) between patients with R0 and R1 resection.  Conclusions: We consider indicated hepatectomy in any patient with resectable CRLM in whom an R0 resection can be achieved maintaining an adequate hepatic reserve, regardless of the final microscopic resection margin status.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Metástasis hepáticas]]></kwd>
<kwd lng="es"><![CDATA[Cáncer colorrectal]]></kwd>
<kwd lng="es"><![CDATA[Margen de resección]]></kwd>
<kwd lng="es"><![CDATA[Pronóstico]]></kwd>
<kwd lng="es"><![CDATA[Supervivencia]]></kwd>
<kwd lng="en"><![CDATA[Liver metastases]]></kwd>
<kwd lng="en"><![CDATA[Colorectal cancer]]></kwd>
<kwd lng="en"><![CDATA[Resection margin]]></kwd>
<kwd lng="en"><![CDATA[Prognosis]]></kwd>
<kwd lng="en"><![CDATA[Survival]]></kwd>
</kwd-group>
</article-meta>
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