<?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>0034-7531</journal-id>
<journal-title><![CDATA[Revista Cubana de Pediatría]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cubana Pediatr]]></abbrev-journal-title>
<issn>0034-7531</issn>
<publisher>
<publisher-name><![CDATA[Centro Nacional de Información de Ciencias MédicasEditorial Ciencias Médicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0034-75312019000400003</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Desempeño diagnóstico de la escala de Alvarado para la apendicitis aguda en el niño]]></article-title>
<article-title xml:lang="en"><![CDATA[Diagnostic performance of Alvarado score for acute appendicitis in children]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramírez Guirado]]></surname>
<given-names><![CDATA[Alejandro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Navarro Sombert]]></surname>
<given-names><![CDATA[Ana Barbarita]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gámez Fonts]]></surname>
<given-names><![CDATA[Ledicel Nilo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Pediátrico Docente Centro Habana Servicio de Cirugía Pediátrica ]]></institution>
<addr-line><![CDATA[La Habana ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<volume>91</volume>
<numero>4</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0034-75312019000400003&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0034-75312019000400003&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0034-75312019000400003&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción:  El diagnóstico de la apendicitis aguda en niños, no por frecuente, deja de ser aún desafiante a pesar de la mayor experiencia clínica y los mejores estudios complementarios.  Objetivo:  Determinar el desempeño diagnóstico de la escala de Alvarado para la apendicitis aguda en el niño.  Métodos:  Estudio observacional, analítico y prospectivo en 452 pacientes de 5 a 18 años de edad que ingresaron en el Servicio de Cirugía Pediátrica del Hospital Pediátrico Docente Centro Habana, con diagnóstico de dolor abdominal o apendicitis aguda, entre enero de 2016 y enero de 2017.  Resultados:  El 77,0 % de los casos presentaron apendicitis. La especificidad y el valor predictivo positivo de la escala, con el punto de corte en 7, fueron de 0,90 y 0,95, respectivamente; sin embargo, la sensibilidad, el valor predictivo negativo y la precisión diagnóstica tuvieron valores bajos. El punto de corte de la escala más equilibrado se determinó en 6. Solamente 3 casos con apendicitis obtuvieron un puntaje menor de 4. El área bajo la Curva de Características Operativas del Receptor fue de 0,85.  Conclusiones:  La escala tiene una buena especificidad y valor predictivo positivo, así como un desempeño discriminativo general aceptable. No resulta apropiada como herramienta única para el diagnóstico de la apendicitis aguda en el escenario clínico real. No obstante, sería útil para descartar la enfermedad con un elevado nivel de certeza.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction:  The diagnosis of acute appendicitis in children is although frequent still challenging and in despite of the higher clinical experience and the more effective laboratory and imaging studies.  Objective:  To determine the diagnostic performance of Alvarado score for acute appendicitis in children.  Methods:  An observational, analytic and prospective study was conducted on 452 patients aged from 5 to 18 years old whom were admitted to the Pediatric Surgery service of Centro Habana Pediatric Hospital from January 2016 to January 2017 with a diagnosis of abdominal pain or acute appendicitis,  Results:  77.0% of admitted patients had diagnosis of appendicitis. The specificity and positive predictive value of the score were 0.90 and 0.95, respectively, considering 7 as the cutoff point; however, the sensitivity, the negative predictive value and the diagnostic accuracy had low values. The most balanced cutoff point was determined to be 6. Only 3 positive cases had scores under 4. The area under the Receiver Operating Characteristics Curve was 0.85.  Conclusions:  The score had good specificity and positive predictive value, as well as an acceptable general discriminative performance. However, it didn&#8217;t result appropriate as a unique tool for diagnosing acute appendicitis in the clinical setting. Nevertheless, it would be useful for ruling out the condition with a high level of certainty.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[apendicitis]]></kwd>
<kwd lng="es"><![CDATA[escala de Alvarado]]></kwd>
<kwd lng="es"><![CDATA[normas de predicción clínicas]]></kwd>
<kwd lng="en"><![CDATA[appendicitis]]></kwd>
<kwd lng="en"><![CDATA[Alvarado score]]></kwd>
<kwd lng="en"><![CDATA[clinical prediction rules]]></kwd>
</kwd-group>
</article-meta>
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