<?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>2604-1227</journal-id>
<journal-title><![CDATA[Revista mexicana de oftalmología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. oftalmol]]></abbrev-journal-title>
<issn>2604-1227</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Oftalmología A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2604-12272022000300118</article-id>
<article-id pub-id-type="doi">10.24875/rmo.m22000226</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Índice neutrófilo/linfocito prequirúrgico en pacientes operados de queratoplastia penetrante como predictor de rechazo corneal]]></article-title>
<article-title xml:lang="en"><![CDATA[Preoperative neutrophil-to-lymphocyte ratio in patients treated with penetrating keratoplasty as a predictor of corneal rejection]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cardozo-Lovera]]></surname>
<given-names><![CDATA[María A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Velasco-Ramos]]></surname>
<given-names><![CDATA[Regina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fernández-Vizcaya]]></surname>
<given-names><![CDATA[Óscar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Baca-Lozada]]></surname>
<given-names><![CDATA[Óscar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pacheco-del Valle]]></surname>
<given-names><![CDATA[Cristina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alegría-Gómez]]></surname>
<given-names><![CDATA[Elisa D.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Babayán-Sosa]]></surname>
<given-names><![CDATA[Alejandro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Fundación Hospital Nuestra Señora de la Luz Departamento de Córnea y Cirugía Refractiva ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2022</year>
</pub-date>
<volume>96</volume>
<numero>3</numero>
<fpage>118</fpage>
<lpage>122</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2604-12272022000300118&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2604-12272022000300118&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2604-12272022000300118&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Objetivo: Determinar la utilidad del índice neutrófilo/linfocito como predictor de rechazo en pacientes operados de queratoplastia penetrante.  Metodología: Estudio analítico observacional retrospectivo. Se utilizó prueba Kruskal-Wallis, Chi-cuadrado, la curva ROC y área bajo la curva.  Resultados: De 156 pacientes, 111 no presentaron rechazo (Grupo A) y 45 presentaron rechazo endotelial (Grupo B). El queratocono se presentó en un 47.74% (grupo A) y la queratopatía bullosa pseudofáquica (grupo B) 35.55% (p = 0.029). El tiempo promedio en presentar rechazo fue 9 ± 7 meses. El mayor factor de riesgo fue glaucoma (26.66%). La media del índice neutrófilo/linfocito del grupo A (1.94 ± 0.67); grupo B, 2.49 ± 1.46 (p = 0.032) El punto de corte del índice para presentar rechazo fue 2.04.  Conclusión: El promedio de la agudeza visual prequirúrgica en ambos grupos fue similar, la postquirúrgica en el grupo A fue menor. El glaucoma fue el mayor factor de riesgo. Hubo una diferencia significativa del índice mayor en el grupo B. El punto de corte del índice para predecir el rechazo corneal fue significativo con un valor de &#8805; 2.04.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Purpose: To determine the utility of the neutrophil-to-lymphocyte ratio as a predictor of rejection in patients treated with penetrating keratoplasty  Methods: Retrospective, observational, analytical study. The Kruskal-Wallis test, chi-square test, ROC curve, and area under the curve were used.  Results: A total of 111 out of the156 patients included did not show rejection (Group A) while 45 did show endothelial rejection (Group B). Keratoconus was present in 47.74% (group A) and bullous pseudophakic keratopathy (group B) in 35.55% (p = 0.029). The mean time to present rejection was 9 ± 7 months. The greatest risk factor was glaucoma (26.66%). The mean neutrophil-to-lymphocyte ratio of group A was 1.94 ± 0.67, and of group B, 2.49 ± 1.46 (p = 0.032) The ratio cut-off value to present rejection was 2.04.  Conclusion: The mean preoperative visual acuity in both groups was similar while the postoperative visual capacity in group A was lower. Glaucoma was the greatest risk factor. There was a significant difference in the ratio of group B. The ratio cut-off value to predict corneal rejection was significant (&#8805; 2.04).]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Rechazo]]></kwd>
<kwd lng="es"><![CDATA[Queratoplastia]]></kwd>
<kwd lng="es"><![CDATA[Linfocito]]></kwd>
<kwd lng="es"><![CDATA[Neutrófilo]]></kwd>
<kwd lng="es"><![CDATA[Índice]]></kwd>
<kwd lng="es"><![CDATA[Trasplante corneal]]></kwd>
<kwd lng="en"><![CDATA[Rejection]]></kwd>
<kwd lng="en"><![CDATA[Keratoplasty]]></kwd>
<kwd lng="en"><![CDATA[Lymphocyte]]></kwd>
<kwd lng="en"><![CDATA[Neutrophil]]></kwd>
<kwd lng="en"><![CDATA[Ratio]]></kwd>
<kwd lng="en"><![CDATA[Corneal tansplantation]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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