<?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>0120-0011</journal-id>
<journal-title><![CDATA[Revista de la Facultad de Medicina]]></journal-title>
<abbrev-journal-title><![CDATA[rev.fac.med.]]></abbrev-journal-title>
<issn>0120-0011</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional de Colombia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-00112022000400200</article-id>
<article-id pub-id-type="doi">10.15446/revfacmed.v70n4.92755</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Risk factors for health care-associated infections by ESBL-producing germs in an intensive care unit of a public hospital in Bogotá D.C., Colombia]]></article-title>
<article-title xml:lang="es"><![CDATA[Factores de riesgo para infecciones asociadas a la atención en salud por gérmenes productores de BLEE en una unidad de cuidados intensivos de un hospital público en Bogotá D.C., Colombia]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Camargo-Mendoza]]></surname>
<given-names><![CDATA[Juan Pablo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ariza-Rodríguez]]></surname>
<given-names><![CDATA[Daniel Efrén]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital de Kennedy  ]]></institution>
<addr-line><![CDATA[Bogotá D.C]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<volume>70</volume>
<numero>4</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-00112022000400200&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-00112022000400200&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-00112022000400200&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction:  Extended spectrum beta-lactamases (ESBL) produced by gram-negative bacteria have been associated with increased hospital morbidity and mortality, longer hospital stays, use of carbapenems, and higher health care costs. Few studies have assessed the risk factors for infection by ESBL-producing germs in intensive care units (ICU).  Objective:  To determine the risk factors for healthcare-associated infections (HAIs) by ESBL-producing  Klebsiella pneumoniae and  Escherichia coli in an ICU of a public tertiary care hospital and to assess the impact of this type of infection on mortality.  Materials and methods:  A case-control study with a 1:2 ratio (97 cases and 194 controls) was conducted in critically ill patients admitted to the ICU of a public tertiary care hospital in Bogotá D.C. (Colombia) between January 2016 and December 2019, and in which a HAI by ESBL-producing  K. pneumoniae or  E. coli (cases: n=97) or  K. pneumoniae or  E. coli with a normal antibiotic resistance pattern (controls: n=194) was documented. Bivariate analyses were performed using the chi-squared and the Mann-Whitney U tests. A logistic regression model was used in the multivariate analysis, and a two-tailed test was performed with the p-values obtained in the bivariate analyses.  Results:  ESBL-producing  K. pneumoniae and  E. coli isolates were identified in 57 (58.76%) and 40 (41.24%) patients, respectively. These isolates were obtained mainly from urine samples (30,92%), followed by peritoneal fluid (27.80%). In the multivariate analysis, the presence of urinary tract infection on admission to the ICU was identified as a risk factor (OR=5.63, 95%CI: 1.918-16.53;; p=0.002). The mortality rate was 28.17% (26.29% in the controls and 31.95% in the cases), but no significant difference was observed between groups (p=0.311).  Conclusion:  Urinary tract infection on admission to the ICU was a risk factor for HAIs by ESBL-producing  K. pneumoniae or  E. coli. Furthermore, no significant difference was observed between cases and controls in terms of mortality.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción.  Las betalactamasas de espectro extendido (BLEE) producidas por gérmenes gram negativos se han asociado con aumento de la morbilidad y mortalidad hospitalaria, mayor estancia hospitalaria, uso de carbapenémicos y mayores costos de atención en salud. Existen pocos trabajos que evalúen los factores de riesgo para infección por gérmenes productores de BLEE en unidades de cuidado intensivo (UCI).  Objetivo.  Determinar los factores de riesgo para el desarrollo de infecciones asociadas a la atención en salud (IAAS) por  Klebsiella pneumoniae y  Escherichia coli productoras de BLEE en una UCI de un hospital público de tercer nivel de atención y evaluar el impacto de este tipo de infección en la mortalidad.  Materiales y métodos.  Estudio de casos y controles con relación 1:2 realizado en pacientes críticamente enfermos admitidos entre enero de 2016 y diciembre de 2019 a la UCI de un hospital público de tercer nivel de Bogotá D.C., Colombia, y en los que se documentó una IAAS por  K. pneumoniae o  E. coli productoras de BLEE (casos; n=97) y por  K. pneumoniae o  E. coli con fenotipo de resistencia natural (controles; n=194). Se realizaron análisis bivariados mediante las pruebas de chi-cuadrado y U de Mann-Whitney. En el análisis multivariado se usó un modelo de regresión logística, con una prueba de dos colas con los valores p obtenidos en los análisis bivariados.  Resultados.  Se identificaron aislamientos de  K. pneumoniae y de  E. coli productoras de BLEE en 57 (58,76%) y 40 (41,24%) de los casos, respectivamente y estos aislamientos se obtuvieron principalmente de muestras de orina (30.92%), seguido de líquido peritoneal (27.83%). En el análisis multivariado, la presencia de infección de vías urinarias al ingreso a UCI fue identificada como factor de riesgo (OR=5.63, IC95%:1.918-16.527; p=0,002). La tasa de mortalidad fue del 28.17% (26.29% en los controles y 31.95% en los casos), pero no se observó una diferencia significativa entre grupos (p=0.311).  Conclusión.  La infección de vías urinarias al ingreso a la UCI fue un factor de riesgo para la IAAS por  K. pneumoniae o  E. coli productoras de BLEE. Además, no se observó una diferencia significativa entre los casos y controles en términos de mortalidad.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Beta-Lactamases]]></kwd>
<kwd lng="en"><![CDATA[Klebsiella Pneumoniae]]></kwd>
<kwd lng="en"><![CDATA[Escherichia Coli]]></kwd>
<kwd lng="en"><![CDATA[Risk Factors]]></kwd>
<kwd lng="en"><![CDATA[Intensive Care Unit]]></kwd>
<kwd lng="en"><![CDATA[Antibiotics (MeSH)]]></kwd>
<kwd lng="es"><![CDATA[Betalactamasas]]></kwd>
<kwd lng="es"><![CDATA[Klebsiella pneumoniae, Escherichia coli, Factores de riesgo]]></kwd>
<kwd lng="es"><![CDATA[Unidad de cuidados intensivos]]></kwd>
<kwd lng="es"><![CDATA[Antibióticos (DeCS)]]></kwd>
</kwd-group>
</article-meta>
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