<?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>2007-4085</journal-id>
<journal-title><![CDATA[Revista mexicana de urología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. urol.]]></abbrev-journal-title>
<issn>2007-4085</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Urología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-40852017000200125</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Morfometría litiásica como predictor del número de accesos o procedimientos en nefrolitotomía percutánea]]></article-title>
<article-title xml:lang="en"><![CDATA[Stone morphometry: tract and stage predictor for percutaneous nephrolithotomy]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sedano-Basilio]]></surname>
<given-names><![CDATA[JE.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Trujillo-Ortiz]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Herrera-Muñoz]]></surname>
<given-names><![CDATA[JA.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gómez-Sánchez]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Preciado-Estrella]]></surname>
<given-names><![CDATA[DA.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Maguey]]></surname>
<given-names><![CDATA[RP.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez-Aquino]]></surname>
<given-names><![CDATA[UC.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Calvo-Vázquez]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cortés-Raygoza]]></surname>
<given-names><![CDATA[PA.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-Méndez]]></surname>
<given-names><![CDATA[EA.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ortega-González]]></surname>
<given-names><![CDATA[ME.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Arroyo]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cantellano-Orozco]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Morales-Montor]]></surname>
<given-names><![CDATA[JG.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pacheco-Gahbler]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital General Dr. Manuel Gea González División de Urología ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2017</year>
</pub-date>
<volume>77</volume>
<numero>2</numero>
<fpage>125</fpage>
<lpage>137</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-40852017000200125&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-40852017000200125&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-40852017000200125&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  ANTECEDENTES: no existe consenso del término &#8220;litiasis coraliforme&#8221;, las designaciones &#8220;parcial&#8221; o &#8220;completa&#8221;, no implican criterios de volumen. El término: &#8220;morfometría litiásica&#8221;, se define como la distribución de la carga volumétrica de un lito coraliforme en el sistema colector.  OBJETIVO: determinar la &#8220;morfometría litiásica&#8221;, mediante estudio preoperatorio de tomografía.  MATERIALES Y MÉTODOS: ensayo retrospectivo-analítico al que se incluyeron pacientes a quienes entre los años 2012-2016 se les realizó un estudio tomográfico. Para la medición de los volúmenes: litiásico total (volumen litiásico total : volumen calculado con reconstrucción de toda la imagen del lito), litiásico del cáliz de entrada (VLCE: volumen del componente en cáliz de entrada), litiásico de cáliz favorable (litiásico de cáliz favorable: volumen del componente en cáliz favorable) se utilizó el programa de cómputo OsiriX.  RESULTADOS:  se incluyeron 46 pacientes en quienes se observaron, volumen calculado con reconstrucción de toda la imagen del lito: 2753 ± 1423 mm3 y 56867 ± 26781 mm3 (p&lt;0.001); volumen del componente en cáliz de entrada: 580 ± 474 mm3 y 17586 ± 13150 mm3 (p&lt;0.001); volumen del componente en cáliz favorable: 589 ± 569 mm3 y 17900 ± 13717 mm3 (p&lt;0.001) en casos con tracto único y más de 2, respectivamente.  CONCLUSIONES: la morfometría litiásica proporciona la carga volumétrica del lito a tratar e influye significativamente en la determinación de los tractos o procedimientos necesarios para alcanzar un estado libre de litiasis en pacientes con litos coraliformes a quienes se realiza nefrolitotomía percutánea en nuestra población.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  BACKGROUND: there is no consensus on the term &#8220;staghorn stone&#8221; and the designations &#8220;partial&#8221; or &#8220;complete&#8221; do not involve volume criteria. The term &#8220;staghorn morphometry&#8221; is defined as the distribution of the volumetric burden of a staghorn stone in the collecting system.  OBJECTIVE: to determine the &#8220;stone morphometry&#8221; through preoperative tomography study.  MATERIALS AND METHODS: a retrospective, analytic study was conducted that included patients with tomography studies within the time frame of 2012-2016. OsiriX software was used with measurements of: total stone volume (volume calculated with reconstruction of the entire stone image), stone volume in the entry calyx (volume of the stone in the entry calyx), stone volume in the favorable calyx (volume of the stone in the favorable calyx).  RESULTS:  the following overall measurements were observed in the 46 patients included in the study: total stone volume: 2753 ± 1423 mm3 and 56867 ± 26781 mm3 (p &lt; 0.001), stone volume in the entry calyx: 580 ± 474 mm3 and 17586 ± 13150 mm3 (p &lt; 0.001), and stone volume in the favorable calyx: 589 ± 569 mm3 and 17900 ± 13717 mm3 (p &lt; 0.001), in cases with a single tract and in those with more than 2 tracts, respectively.  CONCLUSIONS:  stone morphometry provided the volumetric load of the stone to be treated and was significantly influential in determining the tracts and procedures necessary to achieve a stone-free state in patients with staghorn stones that underwent percutaneous nephrolithotomy in a Mexican hospital population.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[litiasis]]></kwd>
<kwd lng="es"><![CDATA[coraliforme]]></kwd>
<kwd lng="es"><![CDATA[morfometría litiásica]]></kwd>
<kwd lng="es"><![CDATA[tracto]]></kwd>
<kwd lng="es"><![CDATA[procedimiento]]></kwd>
<kwd lng="es"><![CDATA[nefrolitotomía percutánea]]></kwd>
<kwd lng="en"><![CDATA[lithiasis]]></kwd>
<kwd lng="en"><![CDATA[staghorn]]></kwd>
<kwd lng="en"><![CDATA[stone morphometry]]></kwd>
<kwd lng="en"><![CDATA[tract]]></kwd>
<kwd lng="en"><![CDATA[procedure]]></kwd>
<kwd lng="en"><![CDATA[percutaneous nephrolithotomy]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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