<?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>S1683-98032026000100059</article-id>
<article-id pub-id-type="doi">10.31698/ped.53012026008</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Exposición a rayos X de los neonatos prematuros en una unidad de cuidados intensivos neonatales. Estudio observacional retrospectivo]]></article-title>
<article-title xml:lang="en"><![CDATA[X-ray exposure of premature infants in a neonatal intensive care unit. Retrospective observational study]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pavon Diarte]]></surname>
<given-names><![CDATA[Ruben Dario]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arias]]></surname>
<given-names><![CDATA[Patricia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Godoy Sánchez]]></surname>
<given-names><![CDATA[Laura Evangelina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mesquita Ramirez]]></surname>
<given-names><![CDATA[Mirta N]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital General Pediátrico Niños de Acosta Ñu San Lorenzo ]]></institution>
<addr-line><![CDATA[Paraguay ]]></addr-line>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Católica Nuestra Señora de la Asunción  ]]></institution>
<addr-line><![CDATA[Asunción ]]></addr-line>
<country>Paraguay</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Hospital Materno Infantil San Pablo  ]]></institution>
<addr-line><![CDATA[Asunción ]]></addr-line>
<country>Paraguay</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2026</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2026</year>
</pub-date>
<volume>53</volume>
<numero>1</numero>
<fpage>59</fpage>
<lpage>68</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_arttext&amp;pid=S1683-98032026000100059&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_abstract&amp;pid=S1683-98032026000100059&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_pdf&amp;pid=S1683-98032026000100059&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción:  La cuantificación de la dosis recibida durante los estudios radiológicos presenta desafíos técnicos, pero constituye un componente esencial de la seguridad del paciente.  Objetivo:  describir la frecuencia y la dosis de entrada a la piel (DEP) acumulada de radiación por rayos X, en neonatos pretérmino internados en la Unidad de cuidados intensivos neonatales (UCIN) de una maternidad pública durante el año 2023.  Materiales y Métodos: estudio observacional descriptivo retrospectivo. Fueron incluidos prematuros de 24 a 36,5 semanas de edad gestacional, egresados de la UCIN y sometidos a estudios radiográficos durante la hospitalización. Variables: sexo, edad gestacional, diagnostico, localización anatómica de la radiografía (RX), numero de RX y DEP acumulada y equipo radiológico utilizado El cálculo de la dosis acumulada, se realizó de acuerdo con los parámetros utilizados por los radiólogos y se expresó en mGy. Los datos fueron analizados en SPSS. El comité de ética institucional aprobó el protocolo de estudio.  Resultados:  Fueron incluidos 209 prematuros con edad gestacional 31,5±3, semanas, peso 1648±680 g. Se realizo 592 Rx, 7,7±8 por paciente, Min 1 y Max 50. La DEP acumulada fue 0,908±1269 mGy, Min 0,10 Max 9,8 mGy. Se encontró correlación positiva entre el número de Rx y la dosis acumulada r=0.86.  Conclusiones:  El promedio de radiografías por paciente fue de 7, con un máximo de 50; sin embargo, la mayoría de los neonatos tuvo menos de 10 radiografías durante su hospitalización. La DEP acumulada de radiación recibida, aun utilizando equipos digitales, fue elevada. Hubo correlación positiva entre el número de radiografías realizadas y las dosis de radiación acumulada.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction: Quantifying the dose received during radiological studies presents technical challenges, but it is an essential component of patient safety.  Objective: To describe the frequency and cumulative skin entry dose (SED) of X-ray radiation in preterm infants admitted to the Neonatal Intensive Care Unit (NICU) of a public maternity hospital during 2023.  Materials and Methods:  This was a retrospective descriptive and observational study. Premature infants aged 24 to 36.5 weeks gestational age, discharged from the NICU and undergoing radiographic studies during hospitalization, were included. Variables: sex, gestational age, diagnosis, anatomical location of the radiograph (X-ray), number of X-rays, cumulative radiation dose (RDD), and radiological equipment used. The cumulative dose was calculated according to the parameters used by the radiologistis and expressed in mGy. Data were analyzed using SPSS. The institutional ethics committee approved the study protocol.  Results: 209 premature infants with a gestational age of 31.5 ± 3 weeks and a weight of 1648 ± 680 g were included. A total of 592 X-rays were performed, 7.7 ± 8 per patient, with a minimum of 1 and a maximum of 50. The cumulative radiation dose was 0.908 ± 1269 mGy, with a minimum of 0.10 and a maximum of 9.8 mGy. A positive correlation was found between the number of X-rays and the cumulative dose (r = 0.86).  Conclusions:  The average number of X-rays per patient was 7, with a maximum of 50; however, most neonates had fewer than 10 X-rays during their hospitalization. The cumulative radiation exposure (DEP), even when using digital equipment, was high. There was a positive correlation between the number of X-rays performed and the cumulative radiation dose.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Dosis]]></kwd>
<kwd lng="es"><![CDATA[radiación]]></kwd>
<kwd lng="es"><![CDATA[recién nacido pretérmino]]></kwd>
<kwd lng="es"><![CDATA[exposición]]></kwd>
<kwd lng="es"><![CDATA[radiografía]]></kwd>
<kwd lng="es"><![CDATA[unidad de cuidados intensivos neonatales]]></kwd>
<kwd lng="en"><![CDATA[Dose]]></kwd>
<kwd lng="en"><![CDATA[radiation]]></kwd>
<kwd lng="en"><![CDATA[preterm newborn]]></kwd>
<kwd lng="en"><![CDATA[exposure]]></kwd>
<kwd lng="en"><![CDATA[X-ray]]></kwd>
<kwd lng="en"><![CDATA[neonatal intensive care unit]]></kwd>
<kwd lng="en"><![CDATA[preterm newborn]]></kwd>
<kwd lng="en"><![CDATA[exposure]]></kwd>
<kwd lng="en"><![CDATA[radiography]]></kwd>
<kwd lng="en"><![CDATA[neonatal intensive care unit]]></kwd>
</kwd-group>
</article-meta>
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