<?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>S2444-054X2022000200223</article-id>
<article-id pub-id-type="doi">10.24875/ciru.20001179</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Sensibilidad y especificidad del índice neutrófilo/linfocito en pacientes pediátricos con apendicitis aguda complicada]]></article-title>
<article-title xml:lang="en"><![CDATA[Sensitivity and specificity of neutrophil-to-lymphocyte ratio in pediatric patients with acute complicated appendicitis]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gil-Vargas]]></surname>
<given-names><![CDATA[Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cruz-Peña]]></surname>
<given-names><![CDATA[Ivonne]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Saavedra-Pacheco]]></surname>
<given-names><![CDATA[Mary S.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital General de Puebla &#8220;Eduardo Vazquez Navarro&#8221; Servicio de Cirugía Pediátrica ]]></institution>
<addr-line><![CDATA[Puebla ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital General de Puebla &#8220;Eduardo Vazquez Navarro Servicio de Pediatría ]]></institution>
<addr-line><![CDATA[Puebla ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Benemérita Universidad Autónoma de Puebla Facultad de Medicina ]]></institution>
<addr-line><![CDATA[Puebla ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2022</year>
</pub-date>
<volume>90</volume>
<numero>2</numero>
<fpage>223</fpage>
<lpage>228</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2444-054X2022000200223&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2444-054X2022000200223&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2444-054X2022000200223&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Objetivo: Determinar la sensibilidad y la especificidad del índice neutrófilo/linfocito (INL) en pacientes pediátricos con apendicitis aguda complicada.  Método: Estudio transversal, observacional, descriptivo y retrospectivo. Se seleccionaron pacientes de 4 a 16 años con diagnóstico de apendicitis aguda a quienes se realizó apendicectomía de enero 2017 a diciembre 2019. Se calculó el INL de cada paciente. Para analizar las variables se utilizó la prueba de Mann-Whitney y se valoraron la sensibilidad y la especificidad del INL.  Resultados: Se estudiaron 245 pacientes, 81 con apendicitis simple y 144 con apendicitis complicada. Se realizaron 27 apendicectomías laparoscópicas. El INL tuvo una media de 10.48 en la apendicitis simple y de 13.03 en la complicada (p = 0.02). Con un área bajo la curva de 0.622 se estimó un punto de corte para el INL de 8.2 en los pacientes con apendicitis complicada.  Conclusiones: El INL ha sido poco estudiado en pacientes pediátricos con apendicitis aguda. En el presente estudio, el INL resultó con valor significativo en los casos de apendicitis aguda complicada en pacientes pediátricos, con sensibilidad intermedia y especificidad relativamente baja.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Objective: Establish the sensibility and specificity of the neutrophil-lymphocyte rate (NLR) in pediatric patients with acute complicated appendicitis.  Method: Transversal, observational, descriptive, and retrospective study of pediatric patients between 4 to 16 years old with diagnosis of acute appendicitis, who had appendectomy, from December 2017 to January 2019. We calculated the NLR in every patient. To analyze the variables, we used the test of Mann-Whitney and we value the sensibility and specificity of the NLR.  Results: There were 245 patients, 81 with simple appendicitis and 144 with complicated appendicitis. Just 27 of them were laparoscopic appendectomy. The NLR had a media of 10.48 in simple appendicitis, and 13.03 in complicated ones, with a p value of 0.02. the area under the curve was 0.622. There was a rate of 8.2 in complicated appendicitis to the NLR.  Conclusions: The NLR has been poorly studied in pediatric patients with acute appendicitis. In this study the NLR had a significant value in the patients with acute complicated appendicitis, with medium sensibility and a relatively low specificity.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Índice neutrófilo/linfocito]]></kwd>
<kwd lng="es"><![CDATA[Apendicitis]]></kwd>
<kwd lng="es"><![CDATA[Niños]]></kwd>
<kwd lng="es"><![CDATA[Apendicectomía]]></kwd>
<kwd lng="en"><![CDATA[Neutrophil-lymphocyte rate]]></kwd>
<kwd lng="en"><![CDATA[Acute appendicitis]]></kwd>
<kwd lng="en"><![CDATA[Children]]></kwd>
<kwd lng="en"><![CDATA[Appendectomy]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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