<?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>2565-005X</journal-id>
<journal-title><![CDATA[Gaceta mexicana de oncología]]></journal-title>
<abbrev-journal-title><![CDATA[Gac. mex. oncol.]]></abbrev-journal-title>
<issn>2565-005X</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Oncología A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2565-005X2024000200063</article-id>
<article-id pub-id-type="doi">10.24875/j.gamo.23000038</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Comparative evaluation of three palliative external beam radiotherapy schedules in painful bone metastases]]></article-title>
<article-title xml:lang="es"><![CDATA[Evaluación comparativa de tres programas paliativos de radioterapia de haz externo en metástasis óseas dolorosas]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Kumar]]></surname>
<given-names><![CDATA[Pawan]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Paul]]></surname>
<given-names><![CDATA[Diptajit]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Nigam]]></surname>
<given-names><![CDATA[Ashish]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Atri]]></surname>
<given-names><![CDATA[Rajeev]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Dhankhar]]></surname>
<given-names><![CDATA[Rakesh]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Kaushal]]></surname>
<given-names><![CDATA[Vivek]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Institute of Medical Sciences PT B D Sharma Post Graduate Department of Radiation Oncology]]></institution>
<addr-line><![CDATA[Rohtak ]]></addr-line>
<country>India</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2024</year>
</pub-date>
<volume>23</volume>
<numero>2</numero>
<fpage>63</fpage>
<lpage>70</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2565-005X2024000200063&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2565-005X2024000200063&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2565-005X2024000200063&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background: Bone metastases are a common manifestation of many malignancies. External beam radiotherapy (EBRT) provides successful palliation of painful bone metastases. In the present study, we compared three schedules of palliative EBRT in painful bony metastasis.  Objective: To evaluate pain relief and performance status improvement in these patients.  Method: This prospective, study was conducted on patients of painful bone metastases from any primary. Patients were randomly divided into three groups to received palliative EBRT either 6Gy single-session (group-I), or 8Gy single-session (group-II) or 10Gy/2-fractions/1-week apart (group-III) to the involved site. Primary objective was to assess overall pain response, assessed using Glasgow pain scale and improvement in performance status, assessed using Eastern Cooperative Oncology Group (ECOG) performance status score. Secondary objectives measured were complete pain relief, duration of overall pain response, analgesic requirement and need of re-irradiation.  Results: A total of 60-patients were equally randomized into 3 groups.  Conclusion: Pain relief was observed maximum in group-III. In all three groups, mean baseline pain score was significantly reduced, and mean ECOG performance status improve 1-month post-EBRT.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Antecedentes: Las metástasis óseas son una manifestación común de muchas neoplasias malignas. La radioterapia de haz externo (EBRT) proporciona una paliación exitosa de las metástasis óseas dolorosas. En el presente estudio, comparamos tres esquemas de EBRT paliativo en metástasis óseas dolorosas.  Objetivo: Evaluar el alivio del dolor y la mejora del estado funcional en estos pacientes.  Método: Este estudio prospectivo se realizó en pacientes con metástasis óseas dolorosas de cualquier primario. Los pacientes se dividieron aleatoriamente en tres grupos para recibir EBRT paliativa, ya sea 6Gy en una sola sesión (grupo I), 8Gy en una sola sesión (grupo II) o 10 Gy/2 fracciones/1 semana de diferencia (grupo III) hasta el sitio involucrado. El objetivo principal fue valorar la respuesta general al dolor, evaluada mediante la escala de dolor de Glasgow y la mejora en el estado funcional, mediante la puntuación del estado funcional del Eastern Cooperative Oncology Group (ECOG). Los objetivos secundarios medidos fueron el alivio completo del dolor, la duración de la respuesta general al dolor, la necesidad de analgésicos y reirradiación.  Resultados: Un total de 60 pacientes fueron igualmente asignados al azar en 3 grupos.  Conclusión: El alivio del dolor se observó máximo en el grupo III. En los tres grupos, la puntuación media inicial del dolor se redujo significativamente y el estado funcional ECOG medio mejoró 1 mes después de la EBRT.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Bone metastasis]]></kwd>
<kwd lng="en"><![CDATA[External beam radiotherapy]]></kwd>
<kwd lng="en"><![CDATA[Painful]]></kwd>
<kwd lng="en"><![CDATA[Palliation]]></kwd>
<kwd lng="en"><![CDATA[Single session]]></kwd>
<kwd lng="es"><![CDATA[Metástasis ósea]]></kwd>
<kwd lng="es"><![CDATA[Radioterapia de haz externo]]></kwd>
<kwd lng="es"><![CDATA[Doloroso]]></kwd>
<kwd lng="es"><![CDATA[Paliación]]></kwd>
<kwd lng="es"><![CDATA[Sesión única]]></kwd>
</kwd-group>
</article-meta>
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