<?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>0484-7903</journal-id>
<journal-title><![CDATA[Revista mexicana de anestesiología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. anestesiol.]]></abbrev-journal-title>
<issn>0484-7903</issn>
<publisher>
<publisher-name><![CDATA[Colegio Mexicano de Anestesiología A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0484-79032023000100026</article-id>
<article-id pub-id-type="doi">10.35366/108619</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Índice neutrófilo/linfocito en anestesia general con ventilación controlada por volumen versus ventilación controlada por presión: ensayo clínico aleatorizado]]></article-title>
<article-title xml:lang="en"><![CDATA[Neutrophil/lymphocyte ratio in general anesthesia with volume-controlled ventilation versus pressure-controlled ventilation: a randomized clinical trial]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Trujillo-Magallón]]></surname>
<given-names><![CDATA[Erick]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rojas-Peñaloza]]></surname>
<given-names><![CDATA[Janeth]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aburto-Monzalvo]]></surname>
<given-names><![CDATA[Hugo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Leonel]]></surname>
<given-names><![CDATA[Juan José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez-Ramírez]]></surname>
<given-names><![CDATA[Carmen Alicia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carrazco-Peña]]></surname>
<given-names><![CDATA[Karla B]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Trujillo-Magallón]]></surname>
<given-names><![CDATA[Ximena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Suárez-Carreón]]></surname>
<given-names><![CDATA[Luis Osvaldo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Trujillo-Hernández]]></surname>
<given-names><![CDATA[Benjamín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro Médico Nacional Siglo XXI Hospital de Especialidades «Dr. Bernardo Sepúlveda» Servicio de Anestesiología]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Colima Facultad de Medicina ]]></institution>
<addr-line><![CDATA[Colima ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Centro Médico Nacional de Occidente Hospital de Especialidades Servicio de Cirugía Bariátrica]]></institution>
<addr-line><![CDATA[Guadalajara Jalisco]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2023</year>
</pub-date>
<volume>46</volume>
<numero>1</numero>
<fpage>26</fpage>
<lpage>31</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0484-79032023000100026&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0484-79032023000100026&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0484-79032023000100026&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Introducción:  se ha demostrado que la ventilación mecánica induce la producción de citocinas proinflamatorias. El IN/L es un parámetro sencillo que se utiliza para evaluar el estado inflamatorio.  Objetivo:  comparar los promedios y porcentajes del índice neutrófilo/linfocito (IN/L) elevado, entre pacientes con anestesia general con ventilación mecánica controlada por volumen (VMCV) y ventilación mecánica controlada por presión (VMCP).  Material y métodos:  se seleccionaron adultos &#8805; 18 años, ASA I-III con cirugía electiva y anestesia general. Ensayo clínico aleatorizado: 25 pacientes con VMCV y 25 con VMCP. A todos los pacientes se les determinó dos biometrías hemáticas: antes y 2 horas después de la cirugía. El IN/L fue medido en forma de razón y dicotómica (&lt; 3 o &#8805; 3). Análisis estadístico: se utilizaron las pruebas t de Student, &#967;2 y McNemar.  Resultados:  se estudiaron 50 pacientes (27 mujeres y 23 hombres) con un promedio de edad de 47 ± 16 años. El grupo de VMCV tuvo tendencia a presentar valores más bajos de promedios y porcentajes IN/L; sin embargo, no fue estadísticamente significativa (p = 0.06). En la comparación pareada ambos grupos presentaron incremento estadísticamente significativo de los promedios y porcentajes de IN/L. No obstante, el porcentaje de IN/L &gt; 3 en el grupo de VMCP fue de 64%, mientras que en el grupo de VMCV fue de 40%.  Conclusiones:  la VMCV presenta promedios y porcentajes más bajos del IN/L comparados con VMCP; sin embargo, no fueron estadísticamente significativos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Introduction:  it has been shown that mechanical ventilation induces production of proinflammatory cytokines. The Neutrophil-to-lymphocyte ratio (N/L r) is a simple parameter that is used to assess the inflammatory state.  Objective:  to compare the means and percentages of elevated neutrophil/lymphocyte ratio (N/L r) in patients under general anesthesia with volume-controlled mechanical ventilation (VCMV) and pressure-controlled mechanical ventilation (PCMV).  Material and methods:  adults &#8805; 18 years old, ASA I-III, with elective surgery and general anesthesia. Randomized clinical trial: 25 patients with VCMV and 25 with PCMV. All patients had two blood counts determined: before and 2 hours after surgery. N/L r was measured as a ratio and dichotomous (&lt; 3 or &#8805; 3). Statistical analysis: the t-Student, &#967;2 and McNemar tests were used.  Results:  50 patients (27 women and 23 men) with a mean age of 47 ± 16 years (range 18-84 years) were studied. The VCMV group tended to present lower values of means and percentages N/L r, however, it was not statistically significant (p = 0.06). In the paired comparison, both groups presented a statistically significant increase in the means and percentages of N/L r. However, the percentage of N/L r &gt; 3 in the PCMV group was 64%, while in the VCMV group it was 40%.  Conclusions:  the VCMV presents lower means and percentages of N/L r compared to PCMV, however, they were not statistically significant.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[neutrófilo]]></kwd>
<kwd lng="es"><![CDATA[linfocito]]></kwd>
<kwd lng="es"><![CDATA[ventilación mecánica]]></kwd>
<kwd lng="es"><![CDATA[volumen]]></kwd>
<kwd lng="es"><![CDATA[presión]]></kwd>
<kwd lng="en"><![CDATA[neutrophil]]></kwd>
<kwd lng="en"><![CDATA[lymphocyte]]></kwd>
<kwd lng="en"><![CDATA[mechanical ventilation]]></kwd>
<kwd lng="en"><![CDATA[volume]]></kwd>
<kwd lng="en"><![CDATA[pressure]]></kwd>
</kwd-group>
</article-meta>
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