<?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>1683-9803</journal-id>
<journal-title><![CDATA[Pediatría (Asunción)]]></journal-title>
<abbrev-journal-title><![CDATA[Pediatr. (Asunción)]]></abbrev-journal-title>
<issn>1683-9803</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Paraguaya de Pediatría]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1683-98032021000300203</article-id>
<article-id pub-id-type="doi">10.31698/ped.48032021008</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Detección de deficiencias de anticuerpos y caracterización clínico-demográfica en pacientes pediátricos con enfermedades alérgicas]]></article-title>
<article-title xml:lang="en"><![CDATA[Detection of antibody deficiencies and clinical-demographic characterization in pediatric patients with allergic diseases]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Godoy]]></surname>
<given-names><![CDATA[Ana María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Giménez]]></surname>
<given-names><![CDATA[Vivian]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez de Cuéllar]]></surname>
<given-names><![CDATA[Celia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Meza]]></surname>
<given-names><![CDATA[Ricardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Benegas]]></surname>
<given-names><![CDATA[Sara]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carpinelli]]></surname>
<given-names><![CDATA[María Mercedes]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sanabria]]></surname>
<given-names><![CDATA[Diana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional de Asunción Instituto de Investigaciones en Ciencias de la Salud Departamento de Inmunología]]></institution>
<addr-line><![CDATA[San Lorenzo ]]></addr-line>
<country>Paraguay</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Ministerio de Salud Pública y Bienestar Social Instituto de Medicina Tropical Centro Nacional de Referencia de Inmunodeficiencias Primarias]]></institution>
<addr-line><![CDATA[Asunción ]]></addr-line>
<country>Paraguay</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Nacional de Asunción Facultad de Ciencias Médicas Unidad Pediátrica Ambulatoria de la Especialidad Asma, Alergia e Inmunología del Hospital de Clínicas]]></institution>
<addr-line><![CDATA[San Lorenzo ]]></addr-line>
<country>Paraguay</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<volume>48</volume>
<numero>3</numero>
<fpage>203</fpage>
<lpage>212</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_arttext&amp;pid=S1683-98032021000300203&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_abstract&amp;pid=S1683-98032021000300203&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_pdf&amp;pid=S1683-98032021000300203&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción:  Las deficiencias predominantes de anticuerpos (DPA) cursan con disminución de niveles séricos de inmunoglobulinas (hipogammaglobulinemia), infecciones recurrentes y se ha reportado su asociación con las alergias. La información sobre su frecuencia en niños alérgicos es limitada y en Paraguay no existen datos al respecto.  Objetivo:  Detectar DPA y establecer su frecuencia en pacientes pediátricos con enfermedades alérgicas atendidos en un hospital de referencia del país.  Materiales y métodos:  Fueron evaluados 64 pacientes pediátricos (1 a 17 años de edad) con diagnóstico de alergia, atendidos en la Unidad Pediátrica Ambulatoria-Especialidad Asma, Alergia e Inmunología del Hospital de Clínicas (periodo 2018-2019). Se midieron los niveles séricos de IgA, IgG e IgM por el método de inmunodifusión radial y se aplicaron criterios de diagnóstico fenotípico a los casos de hipogammaglobulinemia para definir la DPA.  Resultados:  La mediana de edad fue de 5 años (RIQ: 2 - 8), con predominio del sexo masculino (58%). Las alergias más frecuentes fueron asma (38%) y rinitis (34%), además predominaron las infecciones respiratorias recurrentes (80%). La frecuencia de DPA fue de 17% (11/64), detectándose 6 casos de deficiencia de inmunoglobulina A, 4 deficiencias aisladas de IgG y una inmunodeficiencia común variable. No se observaron diferencias significativas al comparar características clínico-demográficas entre pacientes alérgicos con y sin DPA.  Conclusiones:  La frecuencia de DPA fue elevada, por lo que se sugiere considerar el estudio de inmunoglobulinas séricas en pacientes pediátricos con enfermedades alérgicas para una detección y tratamiento oportunos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction:  Predominant antibody deficiencies (PAD) present with decreased serum levels of immunoglobulins (hypogammaglobulinemia), recurrent infections and their association with allergies has been reported. Information on its frequency in allergic children is limited and in Paraguay there are no data in this regard.  Objective:  To detect PAD and establish its frequency in pediatric patients with allergic diseases treated at a reference hospital in the country.  Materials and methods:  64 pediatric patients (1 to 17 years of age) with a diagnosis of allergy, treated in the Pediatric Outpatient Unidad Pediátrica Ambulatoria-Especialidad Asma of the Hospital de Clínicas (from 2018 to 2019) were evaluated. Serum levels of IgA, IgG and IgM were measured by the radial immunodiffusion method and phenotypic diagnostic criteria were applied to hypogammaglobulinemia cases to define PAD.  Results:  The median age was 5 years (IQR: 2 - 8), with a predominance of males (58%). The most frequent allergies were asthma (38%) and rhinitis (34%), and recurrent respiratory infections (80%) predominated. The frequency of PAD was 17% (11/64), with 6 cases of immunoglobulin A deficiency detected, 4 isolated IgG deficiencies and a common variable immunodeficiency were also detected. No significant differences were observed when comparing clinical-demographic characteristics between allergic patients with and without PAD. Conclusions: The frequency of PAD was high, so we suggest considering serum immunoglobulins studies in pediatric patients with allergic diseases for timely detection and treatment.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Enfermedades de Inmunodeficiencia Primaria]]></kwd>
<kwd lng="es"><![CDATA[Síndrome de Deficiencia de Anticuerpos]]></kwd>
<kwd lng="es"><![CDATA[Alergia]]></kwd>
<kwd lng="es"><![CDATA[Pediatría]]></kwd>
<kwd lng="en"><![CDATA[Primary Immunodeficiency Diseases]]></kwd>
<kwd lng="en"><![CDATA[Antibody Deficiency Syndrome]]></kwd>
<kwd lng="en"><![CDATA[Allergy]]></kwd>
<kwd lng="en"><![CDATA[Pediatrics]]></kwd>
</kwd-group>
</article-meta>
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