<?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>2007-4085</journal-id>
<journal-title><![CDATA[Revista mexicana de urología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. urol.]]></abbrev-journal-title>
<issn>2007-4085</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Urología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-40852019000200004</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Infecciones del tracto urinario producidas por Escherichia coli resistentes a betalactamasas en un hospital terciario de España]]></article-title>
<article-title xml:lang="en"><![CDATA[Urinary tract infections caused by extended spec-trumbeta-lactamase-producing Escherichia coli at a Spanish tertiary care hospital]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barrios-Arnau]]></surname>
<given-names><![CDATA[Laura]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez-Llopis]]></surname>
<given-names><![CDATA[Anna]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ponce-Blasco]]></surname>
<given-names><![CDATA[Paula]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gomila Sard]]></surname>
<given-names><![CDATA[Bárbara]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Monsonis Usó]]></surname>
<given-names><![CDATA[Rosa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barrios-Arnau]]></surname>
<given-names><![CDATA[María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Capua-Sacoto]]></surname>
<given-names><![CDATA[Carlos Di]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital General Universitari de Castelló  ]]></institution>
<addr-line><![CDATA[Castellón de la Plana ]]></addr-line>
<country>España</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2019</year>
</pub-date>
<volume>79</volume>
<numero>2</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-40852019000200004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-40852019000200004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-40852019000200004&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introduccio&#769;n: El objetivo de este estudio es evaluar el aislamiento de cepas Escherichia coli (E. coli) resistentes a las betalactamasas (ECRB) en pacientes con infección del tracto urinario.  Material y me&#769;todo: Se realiza un estudio retrospectivo entre enero 2012 y diciembre de 2016. Se incluyeron pacientes con cultivos de orina positivos para E. coli en el Departamento de Salud de Castello&#769;n, España. Se analizaron las siguientes variables: edad, sexo, procedencia del paciente (medio ambulatorio u hospitalario) y factores de riesgo. Se analizó la prevalencia de ECRB mediante un análisis descriptivo. Se utilizó el programa SPSS 18.0 para el análisis estadístico, en el caso de las variables cuantitativas se utilizó la prueba t de student y para las variables cualitativas se usó la prueba de chi-cuadrada.  Resultados: Se obtuvieron 11,740 cultivos positivos para E. coli, de estos 446 (3.79%) fueron ECRB. El porcentaje por an&#771;o de ECRB fue entre un 1.7% y un 6.5% evidenciando una tendencia a el aumento de aislamiento de cepas resistentes en los últimos años. La edad media fue 68,9 an&#771;os, sin diferencias entre sexos. Un total de 350 cultivos procedi&#769;an de pacientes ambulatorios (78.7%), 70.5 % de ello correspondían a mujeres. Los factores de riesgo ma&#769;s asociados a ECBR fueron presentar infección de tracto urinario (ITU) el u&#769;ltimo an&#771;o y haber recibido tratamiento antibio&#769;tico en los tres meses previos, de estos 50% recibio&#769; un betalacta&#769;mico.  Conclusiones: El aislamiento de ECRB es similar a otras series observando un aumento en la prevalencia de estas infecciones de difícil tratamiento. La mayori&#769;a de pacientes fueron procedentes de medio ambulatorio, tratados previamente con antibio&#769;ticos y con episodios de ITU recurrentes.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background:  The aim of the present study was to evaluate the isolation of extended spectrum beta-lactamase (ESBL)-producing Escherichia coli (E. coli) strains in patients with urinary tract infections.  Materials and methods:  A retrospective study was conducted on patients seen at the Departamento de Salud de Castello&#769;n, Spain, within the time frame of January 2012 to December 2016, whose urine cultures were positive for E. coli. The following variables were analyzed: age, sex, type of patient (outpatient or hospitalized), and risk factors. The prevalence of ESBL-producing E. coli was determined through a descriptive analysis. The statistical analysis was carried out utilizing the SPSS 18.0 program. The quantitative variables were analyzed using the Student&#8217;s t test and the qualitative variables with the chi-square test.  Results:  A total of 11,740 cultures were obtained that were positive for E. coli and 446 (3.79%) of them had the ESBL-producing E. coli strains. The percentage per year of ESBL-producing E. coli infection ranged from 1.7% to 6.5%, showing an increasing trend in the isolation of the resistant strains in more recent years. Mean patient age was 68.9 years, and there were no differences between the sexes. A total of 350 cultures corresponded to outpatients (78.7%), 70.5% of whom were women. The risk factors most associated with ESBL were: having presented with a urinary tract infection (UTI) within the past year and having received antibiotic treatment within the previous 3 months. Fifty percent of the patients that had received an antibiotic had been given a beta-lactam.  Conclusions:  The isolation of ESBL-producing E. coli strains was similar to that found in other case series. There was an increase in the prevalence of those difficult-to-treat infections. The majority of the patients were outpatients, had previously been treated with antibiotics, and presented with recurrent UTIs.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[E. coli]]></kwd>
<kwd lng="en"><![CDATA[Infection]]></kwd>
<kwd lng="en"><![CDATA[Resistant]]></kwd>
<kwd lng="en"><![CDATA[Betalactamase]]></kwd>
<kwd lng="es"><![CDATA[E. coli]]></kwd>
<kwd lng="es"><![CDATA[infeccio&#769;n]]></kwd>
<kwd lng="es"><![CDATA[resistencia a la betalactamasa]]></kwd>
</kwd-group>
</article-meta>
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