<?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>0300-9041</journal-id>
<journal-title><![CDATA[Ginecología y obstetricia de México]]></journal-title>
<abbrev-journal-title><![CDATA[Ginecol. obstet. Méx.]]></abbrev-journal-title>
<issn>0300-9041</issn>
<publisher>
<publisher-name><![CDATA[Federación Mexicana de Colegios de Obstetricia y Ginecología A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0300-90412020000600372</article-id>
<article-id pub-id-type="doi">10.24245/gom.v88i6.3739</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Longitud renal y aclaramiento de la creatinina en pacientes embarazadas con enfermedad renal crónica]]></article-title>
<article-title xml:lang="en"><![CDATA[Renal length and creatinine clearance in pregnant patients with chronic kidney disease]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vázquez-Rodríguez]]></surname>
<given-names><![CDATA[Juan Gustavo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Bello]]></surname>
<given-names><![CDATA[Juan Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Mexicano del Seguro Social Centro Médico Nacional La Raza ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2020</year>
</pub-date>
<volume>88</volume>
<numero>6</numero>
<fpage>372</fpage>
<lpage>379</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0300-90412020000600372&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0300-90412020000600372&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0300-90412020000600372&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  OBJETIVO: Medir, con ultrasonido, la longitud renal y el aclaramiento de creatinina para evaluar su correlación en pacientes embarazadas con enfermedad renal crónica.  MATERIALES Y MÉTODOS:  Estudio transversal, analítico y retrospectivo efectuado en pacientes embarazadas con enfermedad renal crónica a quienes se midió, con ultrasonido, la longitud renal derecha, izquierda, total y el aclaramiento de creatinina calculado con la ecuación Modification of Diet in Renal Disease (MDRD) para evaluar su correlación como grupo y por trimestres del embarazo. Se utilizó estadística descriptiva, prueba de ANOVA de una vía y el coeficiente de correlación de Pearson (r) con el programa estadístico SPSS versión 20. Los valores p &lt; 0.05 y r &gt; 0.1 se consideraron significativos.  RESULTADOS: Se estudiaron 50 pacientes. La longitud renal derecha fue 75.52 ± 16.14 mm, izquierda 84.46 ± 16.51 mm y total 159.96 ± 28.59 mm. La media del aclaramiento de creatinina fue 34.17 ± 25.63 mL/min/1.73 m2 área de superficie corporal. La correlación resultó positiva para la longitud renal izquierda vs aclaramiento de creatinina (r = 0.362) y longitud renal total vs aclaramiento de creatinina (r = 0.346) con mayor evidencia en pacientes en el segundo trimestre del embarazo. Las pacientes en el primer trimestre del embarazo fueron de mayor edad (p = 0.004), con riñones más pequeños (p = 0.008), menor aclaramiento de creatinina (p = 0.001) y mayor frecuencia de enfermedad renal crónica terminal (18%).  CONCLUSIONES: Se encontró incremento de la longitud renal izquierda, longitud renal total y aclaramiento de creatinina con correlación positiva. Los cambios fueron evidentes solo en pacientes en el segundo trimestre del embarazo.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  OBJECTIVE: To measure renal length by ultrasound and creatinine clearance to assess its correlation in pregnant patients with chronic kidney disease (CKD).  MATERIALS AND METHODS:  Cross-sectional, analytical and retrospective study in pregnant patients with CKD whose right, left and total renal length was measured by ultrasound and the creatinine clearance calculated with the Modification of Diet in Renal Disease (MDRD) equation to evaluate its correlation. as a group and by gestational trimesters. Descriptive statistics, one-way ANOVA test and Pearson&amp;apos;s correlation coefficient (r) were used with the SPSS version 20 statistical program. The p &lt; 0.05 and r &gt; 0.1 value was considered significant, respectively.  RESULTS:  50 patients were studied. The right renal length was 75.52 ± 16.14 mm, left 84.46 ± 16.51 mm and total 159.96 ± 28.59 mm. The mean creatinine clearance was 34.17 ± 25.63 mL/min/1.73 m2 body surface area. The correlation was positive for the left renal length vs creatinine clearance (r = 0.362) and total renal length vs creatinine clearance (r = 0.346) with more evidence in second trimester patients. The first trimester patients were older (p = 0.004), smaller kidneys (p = 0.008), reduced creatinine clearance (p = 0.001) and higher frequency of terminal chronic kidney disease (18%).  CONCLUSIONS:  An increase in left kidney length, total kidney length and ACr was found, whose correlation was positive. The changes were evident in second trimester pregnant patients.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Longitud renal]]></kwd>
<kwd lng="es"><![CDATA[creatinina]]></kwd>
<kwd lng="es"><![CDATA[pacientes embarazadas]]></kwd>
<kwd lng="es"><![CDATA[enfermedad renal crónica]]></kwd>
<kwd lng="es"><![CDATA[dieta]]></kwd>
<kwd lng="es"><![CDATA[área de superficie corporal]]></kwd>
<kwd lng="es"><![CDATA[riñón derecho]]></kwd>
<kwd lng="es"><![CDATA[primer trimestre]]></kwd>
<kwd lng="es"><![CDATA[segundo trimestre]]></kwd>
<kwd lng="es"><![CDATA[riñón izquierdo]]></kwd>
<kwd lng="en"><![CDATA[Renal length]]></kwd>
<kwd lng="en"><![CDATA[Creatinine]]></kwd>
<kwd lng="en"><![CDATA[Pregnant Patients]]></kwd>
<kwd lng="en"><![CDATA[Chronic Kidney Disease]]></kwd>
<kwd lng="en"><![CDATA[Diet]]></kwd>
<kwd lng="en"><![CDATA[Body Surface Area]]></kwd>
<kwd lng="en"><![CDATA[Left Kidney]]></kwd>
<kwd lng="en"><![CDATA[Second Trimester]]></kwd>
<kwd lng="en"><![CDATA[First Trimester]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Moëll]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Size of normal kidneys]]></article-title>
<source><![CDATA[Acta Radiol]]></source>
<year>1956</year>
<volume>46</volume>
<page-range>640-5</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fernandes]]></surname>
<given-names><![CDATA[MMR]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Normal renal dimensions in a specific population]]></article-title>
<source><![CDATA[Int Braz J Urol]]></source>
<year>2002</year>
<volume>28</volume>
<page-range>510-5</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Oyuela-Carrasco]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Longitud renal por ultrasonografía en población mexicana adulta]]></article-title>
<source><![CDATA[Nefrología]]></source>
<year>2009</year>
<volume>29</volume>
<page-range>30-4</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Asmaa]]></surname>
<given-names><![CDATA[SA]]></given-names>
</name>
<name>
<surname><![CDATA[Rafael]]></surname>
<given-names><![CDATA[FH.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Anatomical and physiological changes during pregnancy]]></article-title>
<source><![CDATA[WJPR]]></source>
<year>2019</year>
<volume>8</volume>
<page-range>157-67</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ramin]]></surname>
<given-names><![CDATA[SM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Chronic renal disease in pregnancy]]></article-title>
<source><![CDATA[Obstet Gynecol]]></source>
<year>2006</year>
<volume>108</volume>
<page-range>1531-9</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ablett]]></surname>
<given-names><![CDATA[MJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[How reliable are ultrasound measurements of renal length in adults?]]></article-title>
<source><![CDATA[Br J Radiol]]></source>
<year>1995</year>
<volume>68</volume>
<page-range>1087-9</page-range></nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Emamian]]></surname>
<given-names><![CDATA[SA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Intraobserver and interobserver variations in sonographic measurements of kidney size in adult volunteers. A comparison of linear measurements and volumetric estimates]]></article-title>
<source><![CDATA[Acta Radiol]]></source>
<year>1995</year>
<volume>36</volume>
<page-range>399-401</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Adibi]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Do kidney sizes in ultrasonography correlate to glomerular filtration rate in healthy children?]]></article-title>
<source><![CDATA[Australasians Radiology]]></source>
<year>2007</year>
<volume>51</volume>
<page-range>555-9</page-range></nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fried]]></surname>
<given-names><![CDATA[JG]]></given-names>
</name>
<name>
<surname><![CDATA[Morgan]]></surname>
<given-names><![CDATA[MA.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Renal imaging: core curriculum]]></article-title>
<source><![CDATA[AJKD]]></source>
<year>2019</year>
<volume>73</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>552-65</page-range></nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Miletic]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Sonographic measurement of absolute and relative renal length in adults]]></article-title>
<source><![CDATA[J Clin Ultrasound]]></source>
<year>1998</year>
<volume>26</volume>
<page-range>185-9</page-range></nlm-citation>
</ref>
<ref id="B11">
<label>11</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gracia]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Recomendaciones sobre la utilización de ecuaciones para la estimación del filtrado glomerular en adultos]]></article-title>
<source><![CDATA[Nefrologia]]></source>
<year>2006</year>
<volume>26</volume>
<page-range>658-65</page-range></nlm-citation>
</ref>
<ref id="B12">
<label>12</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Levey]]></surname>
<given-names><![CDATA[AS]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A more accurate method to estimate glomerular filtration rate from serum creatinine: a new prediction equation. Modification of Diet in Renal Disease Study Group]]></article-title>
<source><![CDATA[Ann Intern Med]]></source>
<year>1999</year>
<volume>130</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>461-70</page-range></nlm-citation>
</ref>
<ref id="B13">
<label>13</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Peral-Aguirregoitia]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Estimación de la tasa de filtración glomerular para el ajuste posológico de los fármacos]]></article-title>
<source><![CDATA[Reina la confusión. Nefrologia]]></source>
<year>2012</year>
<volume>32</volume>
<page-range>115-7</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
