<?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>1665-1146</journal-id>
<journal-title><![CDATA[Boletín médico del Hospital Infantil de México]]></journal-title>
<abbrev-journal-title><![CDATA[Bol. Med. Hosp. Infant. Mex.]]></abbrev-journal-title>
<issn>1665-1146</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Salud, Hospital Infantil de México Federico Gómez]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1665-11462023000600361</article-id>
<article-id pub-id-type="doi">10.24875/bmhim.23000073</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Usefulness of lung ultrasound in the evaluation of children with lower respiratory tract infection in the emergency room]]></article-title>
<article-title xml:lang="es"><![CDATA[Utilidad de ecografía pulmonar en la valoración de niños con infección respiratoria baja en urgencias]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gastelum-Bernal]]></surname>
<given-names><![CDATA[Melissa A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Félix-Ramos]]></surname>
<given-names><![CDATA[Gerardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cadena-Mejía]]></surname>
<given-names><![CDATA[Luis R.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gómez-Jiménez]]></surname>
<given-names><![CDATA[Isaac A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Frías-Mendivil]]></surname>
<given-names><![CDATA[Mauricio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Infantil del Estado de Sonora Servicio de Pediatría ]]></institution>
<addr-line><![CDATA[Hermosillo Sonora]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital Infantil del Estado de Sonora Servicio de Urgencias Pediátricas ]]></institution>
<addr-line><![CDATA[Hermosillo Sonora]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Hospital Infantil del Estado de Sonora Investigación y Calidad Dirección de Enseñanza]]></institution>
<addr-line><![CDATA[Hermosillo Sonora]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2023</year>
</pub-date>
<volume>80</volume>
<numero>6</numero>
<fpage>361</fpage>
<lpage>366</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1665-11462023000600361&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1665-11462023000600361&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1665-11462023000600361&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background: Lung ultrasound is a bedside tool that allows the evaluation of pulmonary parenchymal involvement in pediatric patients through the lung ultrasound score (LUS). We aimed to evaluate a group of patients under 3 years of age with lower respiratory tract infections using LUS at the Hospital Infantil del Estado de Sonora.  Methods: We included patients younger than 3 years admitted to the emergency department with lower respiratory tract infections. A lung ultrasound was performed within the first 24 h of admission to the emergency department and evaluated using LUS. We analyzed age, sex, etiology of infection, days of stay, use of mechanical ventilation, Downes scale, failure of mechanical ventilation on admission, and mortality. Descriptive analysis was performed with frequencies and percentages for qualitative variables and medians and interquartile intervals for quantitative variables. Differences in the distribution of LUS variables were evaluated with the Fishers´ exact test and Student´s t-test.  Results: We included a total of 19 patients with lower respiratory tract infections, 73.7% with bronchiolitis. Fifty percent of the cases scored 7 on the LUS, 91.7% were admitted to the pediatric intensive care unit, and 53.8% required invasive mechanical ventilation.  Conclusions: The use of LUS in lower respiratory tract infections can predict the need for PICU admission, the use of invasive ventilatory support, and prolonged hospital stay.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción: El ultrasonido pulmonar es una herramienta a pie de cama que permite evaluar la afectación del parénquima pulmonar en pacientes pediátricos por medio de la escala de LUS (lung ultrasound score, por sus siglas en inglés). El objetivo del estudio fue evaluar a niños menores de 3 años con infección respiratoria baja mediante la escala de LUS, en el Hospital Infantil del Estado de Sonora.  Métodos: Se incluyeron pacientes menores de 3 años que ingresaron al Servicio de Urgencias con infección respiratoria baja. Se realizó ecografía pulmonar en las primeras 24 horas de ingreso a urgencias y se evaluó mediante la escala de LUS. Se analizó, edad, sexo, etiología de la infección, días de estancia, uso de terapia ventilatoria, escala de Downes, fracaso a la terapia ventilatoria de ingreso y mortalidad. Se realizó un análisis descriptivo por medio de frecuencia y porcentaje para las variables cualitativas y para las cuantitativas con mediana e intervalo intercuartil. Las diferencias en la distribución de las variables por la escala de LUS con la prueba exacta de Fisher y la t de Student.  Resultados: Se identificaron 19 pacientes con infección pulmonar aguda, de los cuales el 73.7% presentó bronquiolitis. El 50% de los casos obtuvo 7 puntos de la escala de LUS, el 91.7% ingresó a UCIP y el 53.8% requirió ventilación mecánica asistida.  Conclusiones: El uso de la escala LUS en infección respiratoria baja puede predecir la necesidad de ingreso a Unidad de Cuidados Intensivos Pediátricos, así como la utilización de soporte ventilatorio invasivo y una estancia hospitalaria prolongada.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Ultrasonography]]></kwd>
<kwd lng="en"><![CDATA[Child]]></kwd>
<kwd lng="en"><![CDATA[Bronchiolitis]]></kwd>
<kwd lng="en"><![CDATA[Critical care]]></kwd>
<kwd lng="es"><![CDATA[Ultrasonido]]></kwd>
<kwd lng="es"><![CDATA[Niños]]></kwd>
<kwd lng="es"><![CDATA[Bronquiolitis]]></kwd>
<kwd lng="es"><![CDATA[Cuidados intensivos]]></kwd>
</kwd-group>
</article-meta>
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