<?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>S2444-054X2026000100011</article-id>
<article-id pub-id-type="doi">10.24875/ciru.23000419</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Implementation of pre- and post-COVID pandemic outcomes of colon cancer patients undergoing colectomies]]></article-title>
<article-title xml:lang="es"><![CDATA[Aplicación de los resultados pre- y pospandemia de COVID-19 en pacientes con cáncer de colon sometidos a colectomía]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Altinel]]></surname>
<given-names><![CDATA[Yuksel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aktimur]]></surname>
<given-names><![CDATA[Yunus Emre]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ozdogan]]></surname>
<given-names><![CDATA[Kamil]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Meric]]></surname>
<given-names><![CDATA[Serhat]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Yigitbas]]></surname>
<given-names><![CDATA[Hakan]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Bagcilar Research and Training Hospital, Health Science University Department of General Surgery ]]></institution>
<addr-line><![CDATA[Istanbul ]]></addr-line>
<country>Turkey</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>02</month>
<year>2026</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>02</month>
<year>2026</year>
</pub-date>
<volume>94</volume>
<numero>1</numero>
<fpage>82</fpage>
<lpage>92</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2444-054X2026000100011&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2444-054X2026000100011&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2444-054X2026000100011&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Objective: Colectomy is a standard surgical technique for colon cancer, but the prognostic indexes are limited. We aimed to evaluate clinicopathology of colectomies under emergency and elective conditions due to colon cancer, and correlate prognostic indexes with these outcomes collected before and during COVID-19 pandemic.  Method: Clinicopathological and laboratory findings of 250 patients underwent colectomies under elective and emergency conditions for left and right colon cancer between 2017 and 2021 were retrospectively analyzed. Prognostic markers, including Clavien-Dindo Classification (CDC), Frailty index (FI), hemoglobin, albumin, lymphocyte, and platelet (HALP) score, and Charlson Comorbidity Index (CCI) were used.  Results: CDC Grade 2 was the most common grade in both periods for all patients (p = 0.014) and for elective cases (p = 0.006), but not FI and HALP scores. Frequency of perineural invasion was significantly higher during COVID-19 among elective cases (19.8% vs. 40.6%; p = 0.032). Increase in CDC (OR: 0.123; 95%CI: 0.331-1.393; p = 0.007) and in CCI (OR: 0.067; 95% CI: 0.147-1.158; p = 0.028) primarily affected mortality rate during pandemic.  Conclusions: Our analyses revealed short-term influences of COVID-19 pandemic on patients’ surgical care of the colon cancer patients. The operative management of comorbidities, CDC for complications, and CCI for comorbidities might be helpful tools to identify post-operative mortality of colectomies.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Objetivo: Evaluar la clínica y la patología de las colectomías electivas y de urgencia por cáncer de colon, correlacionando los índices pronósticos con los resultados pre- y pospandemia de COVID- 19.  Método: Se analizaron 250 casos de colectomía entre 2017 y 2021, incluyendo marcadores pronósticos como la clasificación de Clavien-Dindo (CDC), el índice de fragilidad (FI), el índice HALP y el índice de comorbilidad de Charlson (CCI).  Resultados: La CDC de grado 2 predominó en ambos periodos para los pacientes (p = 0.014) y los casos electivos (p = 0.006), no así para el FI y el HALP. Se observó una mayor invasión perineural durante la COVID-19 en los casos electivos (19.8% frente a 40.6%; p = 0.032). El aumento de CDC (OR: 0.123; IC 95%: 0.331-1.393; p = 0.007) y CCI (OR: 0.067; IC 95%: 0.147-1.158; p = 0.028) afectó a la tasa de mortalidad pandémica.  Conclusiones: Los análisis revelaron influencias a corto plazo de la pandemia de COVID-19 en la atención quirúrgica de los pacientes con cáncer de colon. El tratamiento quirúrgico de la comorbilidad, la CDC para las complicaciones y el CCI para la comorbilidad podrían ser herramientas útiles para identificar la mortalidad posoperatoria de las colectomías.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Colon cancer]]></kwd>
<kwd lng="en"><![CDATA[Colectomy]]></kwd>
<kwd lng="en"><![CDATA[Morbidity]]></kwd>
<kwd lng="en"><![CDATA[Frailty index]]></kwd>
<kwd lng="es"><![CDATA[Cáncer de colon]]></kwd>
<kwd lng="es"><![CDATA[Colectomía]]></kwd>
<kwd lng="es"><![CDATA[Morbilidad]]></kwd>
<kwd lng="es"><![CDATA[Índice de fragilidad]]></kwd>
</kwd-group>
</article-meta>
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