<?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>0120-9957</journal-id>
<journal-title><![CDATA[Revista colombiana de Gastroenterología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. colomb. Gastroenterol.]]></abbrev-journal-title>
<issn>0120-9957</issn>
<publisher>
<publisher-name><![CDATA[Asociación Colombiana de Gastroenterología  ]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-99572020000400436</article-id>
<article-id pub-id-type="doi">10.22516/25007440.545</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[No inferioridad entre dos agentes de bajo volumen (picosulfato de sodio/citrato de magnesio frente al sulfato de sodio/potasio/magnesio) en la preparación del colon para procedimientos diagnósticos: estudio observacional]]></article-title>
<article-title xml:lang="en"><![CDATA[Non-inferiority between two low-volume agents (sodium picosulfate/magnesium citrate vs. sodium sulfate/potassium/magnesium) to prepare the bowel for diagnostic procedures: an observational study]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez-Riveros]]></surname>
<given-names><![CDATA[Erika D.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rey R]]></surname>
<given-names><![CDATA[Margarita]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mendoza De Molano]]></surname>
<given-names><![CDATA[Belén]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Robayo]]></surname>
<given-names><![CDATA[Juan Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Solano-Mariño]]></surname>
<given-names><![CDATA[Jaime]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Duperly]]></surname>
<given-names><![CDATA[Rafael]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gómez]]></surname>
<given-names><![CDATA[Andrés]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pinto-Carta]]></surname>
<given-names><![CDATA[Renzo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ardila]]></surname>
<given-names><![CDATA[Gerardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[De la Hoz-Valle]]></surname>
<given-names><![CDATA[José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sierra-Arango]]></surname>
<given-names><![CDATA[Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Fundación Santa Fe de Bogotá Subdirección de Estudios Clínicos y Epidemiología Clínica ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia.</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Fundación Santa Fe de Bogotá  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia.</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Fundación Santa Fe de Bogotá  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Fundación Santa Fe de Bogotá  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia.</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Fundación Santa Fe de Bogotá  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia.</country>
</aff>
<aff id="Af6">
<institution><![CDATA[,Fundación Santa Fe de Bogotá  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia.</country>
</aff>
<aff id="Af7">
<institution><![CDATA[,Fundación Santa Fe de Bogotá  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia.</country>
</aff>
<aff id="Af8">
<institution><![CDATA[,Fundación Santa Fe de Bogotá  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia.</country>
</aff>
<aff id="Af9">
<institution><![CDATA[,Fundación Santa Fe de Bogotá  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia.</country>
</aff>
<aff id="A10">
<institution><![CDATA[,Fundación Santa Fe de Bogotá  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia.</country>
</aff>
<aff id="A11">
<institution><![CDATA[,Fundación Santa Fe de Bogotá  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia.</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<volume>35</volume>
<numero>4</numero>
<fpage>436</fpage>
<lpage>446</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-99572020000400436&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-99572020000400436&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-99572020000400436&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción:  el cáncer colorrectal es un problema de salud pública; sin embargo, la detección temprana reduce su morbimortalidad. La colonoscopia es el procedimiento de elección para detectar lesiones premalignas y el éxito depende de una limpieza adecuada. El objetivo es evaluar el desempeño de dos preparaciones de bajo volumen empleados en un hospital de alto nivel.  Materiales y métodos:  estudio prospectivo en adultos que asistieran a colonoscopia en la Fundación Santa Fe de Bogotá, Colombia. Las preparaciones se evaluaron con la escala de Boston, con puntaje &#8805; 6 puntos para una limpieza adecuada. Se realizó un análisis de regresión logística para establecer la efectividad de los medicamentos con un cálculo de no inferioridad del 3 %-5 %.  Resultados: 598 pacientes fueron evaluados. El 49 % (293) fue expuesto al picosulfato de sodio/citrato de magnesio y el 51 % (305) fue expuesto al sulfato de sodio/potasio/magnesio. Con un promedio de Boston de 6,98 ± 1,86 (78 % con puntaje de Boston &#8805; 6) y 7,39 ± 1,83 (83 %), respectivamente (p = 0,649). Según el análisis de la presencia y frecuencia de síntomas no deseados, el picosulfato fue mejor tolerado (p &lt; 0,001).  Conclusiones:  los estudios de preparación intestinal en pacientes de un escenario real son muy escasos. Los medicamentos de bajo volumen obtuvieron una efectividad global y por segmento de colon similar, confirmando la no-inferioridad; el picosulfato de sodio/citrato de magnesio fue mejor tolerado. Un estudio de costo-efectividad podría definir esto según las necesidades de la población de estudio.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction:  Colorectal cancer is a public health problem; however, early detection reduces morbidity and mortality. Colonoscopy is the procedure of choice for detecting precancerous lesions, and success depends on proper bowel cleansing.  Objective:  To evaluate the performance of two low-volume agents used in a high-level hospital.  Materials and methods:  Prospective study in adults who underwent colonoscopy at the Fundación Santa Fe in Bogotá, Colombia. Preparations were evaluated using the Boston Bowel Preparation Scale. A score &#8805;6 points indicated adequate preparation. A logistic regression analysis was carried out to establish the effectiveness of the medicines with a non-inferiority ratio of 3-5%.  Results:  598 patients were evaluated. 49% (293) received sodium picosulfate/magnesium citrate and 51% (305) received sodium sulfate/potassium/magnesium, with an average Boston score of 6.98±1.86 (78% Boston &#8805;6) and 7.39±1.83 (83%), respectively (p=0.649). According to the analysis of the presence and frequency of unwanted symptoms, picosulfate was better tolerated (p &lt; 0.001).  Conclusions:  Bowel preparation studies in patients from a real-life scenario are scarce. Low-volume agents had similar overall and segmental effectiveness in the colon, confirming non-inferiority; sodium picosulfate/magnesium citrate was better tolerated. A cost-effectiveness study could establish the best option according to the needs of the study population.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Neoplasias colorrectales]]></kwd>
<kwd lng="es"><![CDATA[picosulfato de sodio]]></kwd>
<kwd lng="es"><![CDATA[preparación intestinal]]></kwd>
<kwd lng="es"><![CDATA[evidencia en la vida real]]></kwd>
<kwd lng="en"><![CDATA[Colorectal neoplasms]]></kwd>
<kwd lng="en"><![CDATA[Sodium picosulfate]]></kwd>
<kwd lng="en"><![CDATA[Intestinal preparation]]></kwd>
<kwd lng="en"><![CDATA[Real-llife evidence.]]></kwd>
</kwd-group>
</article-meta>
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