<?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>0185-3252</journal-id>
<journal-title><![CDATA[Anales médicos (México, Ciudad de México)]]></journal-title>
<abbrev-journal-title><![CDATA[An. méd.]]></abbrev-journal-title>
<issn>0185-3252</issn>
<publisher>
<publisher-name><![CDATA[Asociación Médica del Centro Médico ABC]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0185-32522025000300006</article-id>
<article-id pub-id-type="doi">10.24875/amh.25000002</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Disminución de la percepción del dolor con la administración de lidocaína al 1% y bicarbonato al 7.5% frente a lidocaína al 1% convencional]]></article-title>
<article-title xml:lang="en"><![CDATA[Reduction of pain perception with the administration of 1% lidocaine and 7.5% bicarbonate vs. conventional 1% lidocaine]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Flores-Ricalde]]></surname>
<given-names><![CDATA[Kennya]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Muñoz-Campos]]></surname>
<given-names><![CDATA[Belinda M.M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Márquez-Durón]]></surname>
<given-names><![CDATA[Alexa X.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cruz-Rascón]]></surname>
<given-names><![CDATA[Laiza P.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mauleon-Tiscareño]]></surname>
<given-names><![CDATA[Yara O.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Flores-Alba]]></surname>
<given-names><![CDATA[Axel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mendoza-Garduño]]></surname>
<given-names><![CDATA[Ximena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramírez-Labastida]]></surname>
<given-names><![CDATA[Ángel Y.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Ramírez]]></surname>
<given-names><![CDATA[Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Muñoz]]></surname>
<given-names><![CDATA[Roxana B.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Angulo-Valles]]></surname>
<given-names><![CDATA[Jocelyn]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Márquez-Salas]]></surname>
<given-names><![CDATA[Sandra L.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Cuauhtémoc  Facultad de Ciencias de la Salud]]></institution>
<addr-line><![CDATA[Aguascalientes ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2025</year>
</pub-date>
<volume>70</volume>
<numero>3</numero>
<fpage>213</fpage>
<lpage>216</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0185-32522025000300006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0185-32522025000300006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0185-32522025000300006&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Antecedentes: Las lesiones no intencionadas son una de las principales causas de atención médica en México. La anestesia local infiltrativa es fundamental para realizar procedimientos sin dolor, optimizando el cierre de heridas, reduciendo la morbilidad y mejorando la hemostasia.  Objetivo: Evaluar la reducción de la percepción del dolor al comparar la administración de lidocaína al 1 % sola frente a su combinación con bicarbonato al 7.5%.  Material y métodos: Se realizó un estudio experimental, transversal, simple ciego, en 105 individuos sanos voluntarios. A cada participante se le administró lidocaína al 1% en la región radial del brazo derecho y la combinación de lidocaína al 1% con bicarbonato al 7.5% en la misma zona del brazo izquierdo. La percepción del dolor se midió mediante una escala numérica y los resultados se analizaron con la prueba t de Student.  Resultados: Se encontró una diferencia estadísticamente significativa en la percepción del dolor, siendo mayor en el brazo con lidocaína sola (M: 3.04; DE: 2.105) que en el brazo con la combinación (M: 2.08; DE: 1.466; t = 4.01; p &lt; 0.001; d = 0.405).  Conclusiones: La combinación de lidocaína al 1% y bicarbonato al 7.5%, en comparación con solo lidocaína al 1%, demostró una reducción de la percepción de dolor en individuos sanos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Abstract  Background: Unintentional injuries are one of the leading causes of health care in Mexico. Infiltrative local anesthesia is essential for performing painless procedures, optimizing wound closure, reducing morbidity, and improving hemostasis.  Objective: Evaluate the reduction in pain perception when comparing the administration of 1% lidocaine alone versus its combination with 7.5% bicarbonate.  Material and methods: An experimental, cross-sectional, single-blind study was conducted on 105 healthy volunteer participants. Each participant received 1% lidocaine in the radial region of the right arm and a combination of 1% lidocaine and 7.5% bicarbonate in the same area of the left arm. Pain perception was measured using a numerical scale, and the results were analyzed with the Student&#8217;s t test.  Results: A statistically significant difference was found in pain perception, with higher pain scores in the arm receiving lidocaine alone (M: 3.04; SD: 2.105) compared to the arm receiving the combination (M: 2.08; SD: 1.466; t = 4.01; p &lt; 0.001; d = 0.405).  Conclusions: The combination of 1% lidocaine with 7.5% bicarbonate significantly reduced pain perception in healthy individuals compared to 1% lidocaine alone.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Infiltración]]></kwd>
<kwd lng="es"><![CDATA[Lidocaína]]></kwd>
<kwd lng="es"><![CDATA[Bicarbonato]]></kwd>
<kwd lng="es"><![CDATA[Dolor]]></kwd>
<kwd lng="en"><![CDATA[Infiltration]]></kwd>
<kwd lng="en"><![CDATA[Lidocaine]]></kwd>
<kwd lng="en"><![CDATA[Bicarbonate]]></kwd>
<kwd lng="en"><![CDATA[Pain]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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