<?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>0035-0052</journal-id>
<journal-title><![CDATA[Revista mexicana de pediatría]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. pediatr.]]></abbrev-journal-title>
<issn>0035-0052</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Pediatría A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0035-00522023000300092</article-id>
<article-id pub-id-type="doi">10.35366/114201</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Utilidad de los marcadores colónicos para la clasificación de constipación funcional]]></article-title>
<article-title xml:lang="en"><![CDATA[Usefulness of colonic markers for the classification of functional constipation]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Calva-y-Rodríguez]]></surname>
<given-names><![CDATA[Roberto Guillermo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Benemérita Universidad Autónoma de Puebla Facultad de Medicina ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2023</year>
</pub-date>
<volume>90</volume>
<numero>3</numero>
<fpage>92</fpage>
<lpage>96</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-00522023000300092&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-00522023000300092&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-00522023000300092&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Introducción:  el estreñimiento es un síntoma frecuente de consulta pediátrica, con una prevalencia estimada del 0.9 a 30%.  Objetivo:  mostrar la utilidad de una técnica de marcadores radiopacos para el diagnóstico de estreñimiento funcional.  Material y métodos:  estudio observacional, en 100 pacientes con estreñimiento funcional según los criterios de Roma IV. La técnica consiste en la preparación de una cápsula de gelatina con 10 rondanas radiopacas, obtenidas de una sonda de alimentación. Tras su ingestión, se realiza una radiografía simple de abdomen a las 48 horas. Se clasifican los resultados de acuerdo con el área donde se localizan los marcadores.  Resultados:  se estudiaron 64 mujeres y 36 hombres. Diecisiete presentaron marcadores en colon, 40 en sigmoides, seis pacientes se encontraron tanto en colon como en sigmoides, y 37 sin marcador detectable.  Conclusiones:  el uso de esta prueba permite, de forma sencilla, económica y con mínima radiación, clasificar el subtipo de estreñimiento funcional, ya sea por tránsito colónico lento, por obstrucción o tránsito colónico normal.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Introduction:  constipation is a common symptom in pediatric consultations, with an estimated prevalence of 0.9 to 30%.  Objective:  to show the usefulness of a radiopaque marker technique for the diagnosis of functional constipation.  Material and methods:  observational study, in 100 patients with functional constipation according to the Rome IV criteria. The technique consists of preparing a gelatin capsule with 10 radiopaque rounds, obtained from a feeding tube. After ingestion, a simple abdominal X-Ray is performed 48 hours later. The results are classified according to the abdominal area where the markers are located.  Results:  64 women and 36 men were studied. Seventeen had markers in the colon, 40 in the sigmoid, six patients were found in both the colon and the sigmoid, and in 37 no markers were detected.  Conclusions:  the use of this test allows, in a simple, economical way and with minimal radiation, to classify the subtype of functional constipation, whether due to slow colonic transit, obstruction or normal colonic transit.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[estreñimiento]]></kwd>
<kwd lng="es"><![CDATA[estreñimiento funcional]]></kwd>
<kwd lng="es"><![CDATA[marcadores colónicos]]></kwd>
<kwd lng="es"><![CDATA[radiografía de abdomen]]></kwd>
<kwd lng="en"><![CDATA[constipation]]></kwd>
<kwd lng="en"><![CDATA[functional constipation]]></kwd>
<kwd lng="en"><![CDATA[colonic markers]]></kwd>
<kwd lng="en"><![CDATA[abdominal X-Ray]]></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[Van der Berg]]></surname>
<given-names><![CDATA[MM]]></given-names>
</name>
<name>
<surname><![CDATA[Benninga]]></surname>
<given-names><![CDATA[MA]]></given-names>
</name>
<name>
<surname><![CDATA[Di Lorenzo]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Epidemiology of chidhood constipation: a systematic review]]></article-title>
<source><![CDATA[Am J Gastroenterol]]></source>
<year>2006</year>
<volume>101</volume>
<page-range>2401-9</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[Hers]]></surname>
<given-names><![CDATA[MJ]]></given-names>
</name>
<name>
<surname><![CDATA[Kahan]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Zalevski]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Aframian]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Kuznitz]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Reichman]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Constipation: a different entity for patients and doctors]]></article-title>
<source><![CDATA[Fam Pract]]></source>
<year>1966</year>
<volume>13</volume>
<page-range>156-9</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[Remes-Troche]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Chávez-Barrera]]></surname>
<given-names><![CDATA[JA]]></given-names>
</name>
<name>
<surname><![CDATA[González-Ortíz]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Heller-Rouassant]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Montijo-Barrios]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Velasco-Lavín]]></surname>
<given-names><![CDATA[MR]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Guías de diagnóstico y tratamiento del estreñimiento en México. Evaluación y tratamiento del estreñimiento en población pediátrica]]></article-title>
<source><![CDATA[Rev Gastroenterol Mex]]></source>
<year>2011</year>
<volume>76</volume>
<page-range>155-68</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[Schmulson-Wasserman]]></surname>
<given-names><![CDATA[MJ]]></given-names>
</name>
<name>
<surname><![CDATA[Francisconi]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Olden]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Paíz]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Bustos-Fernández]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Cohen]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Consenso latinoamericano de estreñimiento crónico]]></article-title>
<source><![CDATA[Gastroenterol Hepatol]]></source>
<year>2008</year>
<volume>31</volume>
<page-range>59-74</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[Lewis]]></surname>
<given-names><![CDATA[SJ]]></given-names>
</name>
<name>
<surname><![CDATA[Heaton]]></surname>
<given-names><![CDATA[KW]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Stool from scale as a useful guide to intestinal transit time]]></article-title>
<source><![CDATA[Scand J Gastroenterol]]></source>
<year>1997</year>
<volume>32</volume>
<page-range>920-4</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[Longstreth]]></surname>
<given-names><![CDATA[GF]]></given-names>
</name>
<name>
<surname><![CDATA[Thompson]]></surname>
<given-names><![CDATA[WG]]></given-names>
</name>
<name>
<surname><![CDATA[Chey]]></surname>
<given-names><![CDATA[WD]]></given-names>
</name>
<name>
<surname><![CDATA[Houghton]]></surname>
<given-names><![CDATA[LA]]></given-names>
</name>
<name>
<surname><![CDATA[Mearin]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Spiller]]></surname>
<given-names><![CDATA[RC]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Functional bowel disorders]]></article-title>
<source><![CDATA[Gastroenterol]]></source>
<year>2006</year>
<volume>130</volume>
<page-range>1480-91</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[Remes-Troche]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez-Escudero]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
<name>
<surname><![CDATA[Icaza-Chávez]]></surname>
<given-names><![CDATA[MG]]></given-names>
</name>
<name>
<surname><![CDATA[Noble-Lugo]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[López-Colombo]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Bielsa]]></surname>
<given-names><![CDATA[MV]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Guías de diagnóstico y tratamiento del estreñimiento en México]]></article-title>
<source><![CDATA[Rev Gastroenterol Mex]]></source>
<year>2011</year>
<volume>76</volume>
<page-range>141-54</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[Drossman]]></surname>
<given-names><![CDATA[DA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Functional gastrointestinal disorders: history, pathophysiology, clinical features, and Rome IV]]></article-title>
<source><![CDATA[Gastroenterol]]></source>
<year>2016</year>
<volume>150</volume>
<page-range>1262-79</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[Tabbers]]></surname>
<given-names><![CDATA[MM]]></given-names>
</name>
<name>
<surname><![CDATA[DiLorenzo]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Berger]]></surname>
<given-names><![CDATA[MY]]></given-names>
</name>
<name>
<surname><![CDATA[Faure]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Langendam]]></surname>
<given-names><![CDATA[MW]]></given-names>
</name>
<name>
<surname><![CDATA[Nurko]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluation and treatment of functional constipation in infants and children: evidence-based recommendations from ESPGHAN and NASPGHAN]]></article-title>
<source><![CDATA[J Pediatr Gastroenterol Nutr]]></source>
<year>2014</year>
<volume>58</volume>
<page-range>258-74</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[Remes-Troche]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Estreñimiento. Evaluación inicial y abordaje diagnóstico]]></article-title>
<source><![CDATA[Rev Gastroenterol Mex]]></source>
<year>2005</year>
<volume>70</volume>
<page-range>312-22</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[Hinton]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Lennard-Jones]]></surname>
<given-names><![CDATA[JE]]></given-names>
</name>
<name>
<surname><![CDATA[Young]]></surname>
<given-names><![CDATA[AC]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A new method for studying gut transit times using radioopaque markers]]></article-title>
<source><![CDATA[Gut]]></source>
<year>1969</year>
<volume>10</volume>
<page-range>842-7</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[Rao]]></surname>
<given-names><![CDATA[SSC]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Advances in diagnostic assessment of fecal incontinence]]></article-title>
<source><![CDATA[Clin Gastroenterol Hepatol]]></source>
<year>2010</year>
<volume>8</volume>
<page-range>910-9</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[Popescu]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Mutalib]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Bowel transit studies in children: evidence base, role and practicalities]]></article-title>
<source><![CDATA[Front Gastroenterol]]></source>
<year>2022</year>
<volume>13</volume>
<page-range>152-9</page-range></nlm-citation>
</ref>
<ref id="B14">
<label>14</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Carmo]]></surname>
<given-names><![CDATA[RL]]></given-names>
</name>
<name>
<surname><![CDATA[Oliveira]]></surname>
<given-names><![CDATA[ML]]></given-names>
</name>
<name>
<surname><![CDATA[Ribeiro]]></surname>
<given-names><![CDATA[RPM]]></given-names>
</name>
<name>
<surname><![CDATA[Lima]]></surname>
<given-names><![CDATA[AEA]]></given-names>
</name>
<name>
<surname><![CDATA[Amorim]]></surname>
<given-names><![CDATA[MCL]]></given-names>
</name>
<name>
<surname><![CDATA[Ribeiro]]></surname>
<given-names><![CDATA[BJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Colonic transit in children and adolescents with chronic constipation]]></article-title>
<source><![CDATA[J Pediatr]]></source>
<year>2015</year>
<volume>91</volume>
<page-range>386-91</page-range></nlm-citation>
</ref>
<ref id="B15">
<label>15</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Shin]]></surname>
<given-names><![CDATA[YM]]></given-names>
</name>
<name>
<surname><![CDATA[Southwell]]></surname>
<given-names><![CDATA[BR]]></given-names>
</name>
<name>
<surname><![CDATA[Stanton]]></surname>
<given-names><![CDATA[MP]]></given-names>
</name>
<name>
<surname><![CDATA[Hutson]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Signs and symptoms of slow-transit constipation versus functional retention]]></article-title>
<source><![CDATA[J Pediatr Surg]]></source>
<year>2002</year>
<volume>37</volume>
<page-range>1762-5</page-range></nlm-citation>
</ref>
<ref id="B16">
<label>16</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hutson]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[McNamara]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Gibb]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Shin]]></surname>
<given-names><![CDATA[YM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Slow transit constipation in children]]></article-title>
<source><![CDATA[J Paediatr Child Health]]></source>
<year>2001</year>
<volume>37</volume>
<page-range>426-30</page-range></nlm-citation>
</ref>
<ref id="B17">
<label>17</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Van-der-Sijp]]></surname>
<given-names><![CDATA[JR]]></given-names>
</name>
<name>
<surname><![CDATA[Kamm]]></surname>
<given-names><![CDATA[MA]]></given-names>
</name>
<name>
<surname><![CDATA[Nightingale]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Britton]]></surname>
<given-names><![CDATA[KE]]></given-names>
</name>
<name>
<surname><![CDATA[Mather]]></surname>
<given-names><![CDATA[SJ]]></given-names>
</name>
<name>
<surname><![CDATA[Morris]]></surname>
<given-names><![CDATA[GP]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Radioisotope determination of regional colonic transit in severe constipation: comparison with radio opaque markers]]></article-title>
<source><![CDATA[Gut]]></source>
<year>1993</year>
<volume>34</volume>
<page-range>402-8</page-range></nlm-citation>
</ref>
<ref id="B18">
<label>18</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sutcliffe]]></surname>
<given-names><![CDATA[JR]]></given-names>
</name>
<name>
<surname><![CDATA[King]]></surname>
<given-names><![CDATA[SK]]></given-names>
</name>
<name>
<surname><![CDATA[Hutson]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Cook]]></surname>
<given-names><![CDATA[DJ]]></given-names>
</name>
<name>
<surname><![CDATA[Southwell]]></surname>
<given-names><![CDATA[BR]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Gastrointestinal transit in children with chronic idiopathic constipation]]></article-title>
<source><![CDATA[Pediatr Surg Int]]></source>
<year>2009</year>
<volume>25</volume>
<page-range>465-72</page-range></nlm-citation>
</ref>
<ref id="B19">
<label>19</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Camilleri]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Zinsmeister]]></surname>
<given-names><![CDATA[AR]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Towards a relatively inexpensive, noninvasive, accurate test for colonic motility disorders]]></article-title>
<source><![CDATA[Gastroenterol]]></source>
<year>1992</year>
<volume>103</volume>
<page-range>36-42</page-range></nlm-citation>
</ref>
<ref id="B20">
<label>20</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Yik]]></surname>
<given-names><![CDATA[YI]]></given-names>
</name>
<name>
<surname><![CDATA[Ismail]]></surname>
<given-names><![CDATA[KA]]></given-names>
</name>
<name>
<surname><![CDATA[Hutson]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Southwell]]></surname>
<given-names><![CDATA[BR]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Home transcutaneous electrical stimulation to treat children with slow-transit constipation]]></article-title>
<source><![CDATA[J Pediatr Surg]]></source>
<year>2012</year>
<volume>47</volume>
<page-range>1285-90</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
