<?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>2306-4102</journal-id>
<journal-title><![CDATA[Acta ortopédica mexicana]]></journal-title>
<abbrev-journal-title><![CDATA[Acta ortop. mex]]></abbrev-journal-title>
<issn>2306-4102</issn>
<publisher>
<publisher-name><![CDATA[Colegio Mexicano de Ortopedia y Traumatología A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2306-41022022000400202</article-id>
<article-id pub-id-type="doi">10.35366/109804</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Evaluación de la parálisis diafragmática con ultrasonido y espirometría: comparación del bloqueo supraclavicular vs bloqueo interescalénico en cirugía de hombro]]></article-title>
<article-title xml:lang="en"><![CDATA[Evaluation of diaphragmatic paralysis with ultrasound and spirometry: comparison of supraclavicular vs interscalene block in shoulder surgery]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Morales-Nuño]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Peña-Riverón]]></surname>
<given-names><![CDATA[AA]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ruiz-Suárez]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Morales-González]]></surname>
<given-names><![CDATA[ID]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Wiedman-Duarte]]></surname>
<given-names><![CDATA[CS]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Durán-Arizaga]]></surname>
<given-names><![CDATA[HJ]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Nacional de Rehabilitación «Luis Guillermo Ibarra Ibarra»  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Nacional de Rehabilitación «Luis Guillermo Ibarra Ibarra»  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Nacional de Rehabilitación «Luis Guillermo Ibarra Ibarra»  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2022</year>
</pub-date>
<volume>36</volume>
<numero>4</numero>
<fpage>202</fpage>
<lpage>209</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2306-41022022000400202&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2306-41022022000400202&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2306-41022022000400202&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Introducción:  la cirugía artroscópica de hombro ha ganado popularidad recientemente; sin embargo, el dolor postquirúrgico se reporta de moderado a severo. La anestesia regional es útil para el control del dolor postquirúrgico. El bloqueo interescalénico y supraclavicular produce parálisis diafragmática en diferente proporción. Se busca encontrar cuál es el porcentaje y duración de la parálisis hemidiafragmática mediante mediciones ultrasonográficas, correlacionadas con espirometría comparando el abordaje supraclavicular con interescalénico.  Material y métodos:  ensayo clínico, controlado y aleatorizado. Se incluyeron 52 pacientes entre 18 y 90 años, programados para cirugía artroscópica de hombro, divididos en dos grupos (bloqueo interescalénico y supraclavicular). Se midió la excursión diafragmática y se realizó una espirometría previo al ingreso al quirófano y a las 24 horas de instalación del bloqueo, el estudio concluyó a las 24 horas del evento anestésico.  Resultados:  la capacidad vital se redujo en 0.7% en el grupo del bloqueo supraclavicular y 7.7% en el grupo interescalénico, el VEF1 se redujo en 0.2% en el supraclavicular y 9.5% en el interescalénico con una diferencia estadísticamente significativa (p = 0.001). La parálisis diafragmática en ventilación espontánea se presentó en ambos abordajes a los 30 minutos, sin diferencia significativa. A las seis y ocho horas continuó la parálisis en el grupo interescalénico, mientras que en el abordaje supraclavicular se mantuvo en comparación con la basal.  Conclusiones:  el bloqueo supraclavicular resulta tan efectivo como el bloqueo interescalénico en la cirugía artroscópica de hombro, con menor bloqueo diafragmático (1.5 veces más parálisis diafragmática en el interescalénico).]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Introduction:  arthroscopic shoulder surgery has recently gained popularity, however, postoperative pain is reported as moderate to severe. Regional anesthesia is useful for the control of postoperative pain. Interscalene and supraclavicular blocks produce diaphragmatic paralysis in different proportions. The aim of this study is to find the percentage and duration of hemidiaphragmatic paralysis, by means of ultrasonographic measurements, correlated with spirometry, comparing the supraclavicular approach with interscalene.  Material and methods:  clinical, controlled and randomized trial. Fifty-two patients, between 18 and 90 years of age, scheduled for arthroscopic shoulder surgery were included, divided into 2 groups (interscalene or supraclavicular block). Diaphragmatic excursion was measured and spirometry was performed prior to admission to the operating room and 24 hours after installation of the block, the study concluded 24 hours after the anesthetic event.  Results:  vital capacity was reduced by 0.7% in the supraclavicular block and 7.7% for the interscalene, FEV1 was reduced by 0.2% for the supraclavicular and 9.5% in the interscalene with a statistically significant difference (p = 0.001). Diaphragmatic paralysis in spontaneous ventilation appeared in both approaches at 30 minutes, without significant difference. At 6 and 8 hours, paralysis continued in the interscalene group, while in the supraclavicular approach it remained preserved compared to the baseline.  Conclusions:  supraclavicular block is as effective as interscalene block in arthroscopic shoulder surgery, with less diaphragmatic block (1.5 times more diaphragmatic paralysis in interscalene).]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[bloqueo de plexo braquial]]></kwd>
<kwd lng="es"><![CDATA[parálisis diafragmática]]></kwd>
<kwd lng="es"><![CDATA[espirometría]]></kwd>
<kwd lng="es"><![CDATA[ultrasonido]]></kwd>
<kwd lng="en"><![CDATA[brachial plexus block]]></kwd>
<kwd lng="en"><![CDATA[diaphragmatic paralysis]]></kwd>
<kwd lng="en"><![CDATA[spirometry]]></kwd>
<kwd lng="en"><![CDATA[ultrasound]]></kwd>
</kwd-group>
</article-meta>
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