<?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>2448-9190</journal-id>
<journal-title><![CDATA[Revista alergia México]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. alerg. Méx.]]></abbrev-journal-title>
<issn>2448-9190</issn>
<publisher>
<publisher-name><![CDATA[Colegio Mexicano de Inmunología Clínica y Alergia A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2448-91902019000300308</article-id>
<article-id pub-id-type="doi">10.29262/ram.v66i3.630</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Flujometría versus espirometría para el diagnóstico de asma en adultos]]></article-title>
<article-title xml:lang="en"><![CDATA[Peak expiratory flow vs. spirometry for the diagnosis of asthma in adults]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Herrera-Sánchez]]></surname>
<given-names><![CDATA[Andrea]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Álvarez-Chávez]]></surname>
<given-names><![CDATA[Fabián Eduardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castillo-Hernández]]></surname>
<given-names><![CDATA[María C.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Orihuela]]></surname>
<given-names><![CDATA[Óscar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Guevara-Balcázar]]></surname>
<given-names><![CDATA[Gustavo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Godínez]]></surname>
<given-names><![CDATA[María de los Ángeles]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Virla]]></surname>
<given-names><![CDATA[Baldomero]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Mexicano del Seguro Social Centro Médico Nacional Siglo XXI Hospital de Especialidades]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2019</year>
</pub-date>
<volume>66</volume>
<numero>3</numero>
<fpage>308</fpage>
<lpage>313</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2448-91902019000300308&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2448-91902019000300308&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2448-91902019000300308&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Antecedentes:  El diagnóstico de asma se confirma con espirometría: VEF1 (volumen espiratorio forzado del primer segundo)/CVF (capacidad vital forzada) &lt; 80 %, con reversibilidad (VEF1 &gt;12 % o 200 mL) tras utilizar salbutamol. El flujómetro es barato y fácil de utilizar, mide el flujo espiratorio forzado, cuya reversibilidad &gt; 20 % sugiere asma.  Objetivo:  Conocer sensibilidad, especificidad y valores predictivos positivos y negativo del flujómetro.  Métodos:  Estudio transversal, observacional, comparativo. Se incluyó a individuos &gt; 18 años sin contraindicaciones para espirometría, quienes fueron sometidos a espirometría y flujometría y se les aplicó el Asthma Control Test. Se calculó sensibilidad, especificidad y valores predictivos positivo y negativo de la flujometría. Se realizó curva ROC para conocer el punto de corte de mayor sensibilidad y especificidad.  Resultados:  De 150 pacientes, 66 % fue del sexo masculino; la mediana de edad fue de 38 años. Conforme los criterios de Global Initiative for Asthma 2018, 58.7 % estaba controlado. La sensibilidad de la flujometría fue de 47 %, la especificidad de 87 %, valor predictivo positivo de 54.8 % y negativo de 84 %. La flujometría mostró mayor especificidad con VEF1 &lt; 59 %. El punto de corte de mayor sensibilidad y especificidad fue una reversibilidad de 8 %, con área bajo la curva de 0.70.  Conclusiones:  El flujómetro tiene mayor sensibilidad en obstrucciones de vía aérea; es de utilidad cuando no se cuenta con un espirómetro.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background:  The diagnosis of asthma is confirmed with a spirometry: FEV1 ratio (forced expiratory volume in one second)/FVC (forced vital capacity) &lt;80% with reversibility (FEV1 &gt;12% or 200 mL) after using salbutamol. The peak expiratory flow is cheap and easy to use; it measures the forced expiratory flow, of which reversibility &gt; 20% suggests asthma.  Objective:  To know the sensitivity, specificity, and the positive and negative predictive values of the flowmeter.  Methods:  A cross-sectional, observational, comparative study. Individuals aged &gt;18 years without contraindications for spirometry were included. They underwent spirometry and peak expiratory flow, and the ACT (Asthma Control Test) questionnaire was applied to them. Sensitivity, specificity, positive predictive value and negative predictive value of the flowmetry were calculated. ROC curve was carried out in order to know the cut-off point of greater sensitivity and specificity.  Results:  Of 150 patients, 66% were male; the median age was 38 years. According to the guidelines of GINA 2018 (Global Initiative for Asthma); 58.7% were controlled. The sensitivity of the peak expiratory flow was 47%, and the specificity was 87%, with a positive predictive value of 54.8% and a negative predictive value of 84%. The peak expiratory flow showed higher specificity with FEV1 &lt;59%. The cut-off point of greater sensitivity and specificity was a reversibility of 8%, with an area under the curve of 0.70.  Conclusions:  The flowmeter has got greater sensitivity in airway obstructions; it is useful when a spirometer is not available.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Asma]]></kwd>
<kwd lng="es"><![CDATA[Pico flujo espiratorio]]></kwd>
<kwd lng="es"><![CDATA[Espirometría]]></kwd>
<kwd lng="en"><![CDATA[Asthma]]></kwd>
<kwd lng="en"><![CDATA[Peak expiratory flow]]></kwd>
<kwd lng="en"><![CDATA[Spirometry]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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