<?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>2444-054X</journal-id>
<journal-title><![CDATA[Cirugía y cirujanos]]></journal-title>
<abbrev-journal-title><![CDATA[Cir. cir.]]></abbrev-journal-title>
<issn>2444-054X</issn>
<publisher>
<publisher-name><![CDATA[Academia Mexicana de Cirugía A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2444-054X2020000200170</article-id>
<article-id pub-id-type="doi">10.24875/ciru.19001064</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Three-dimensional vs two-dimensional laparoscopic gastric bypass for manual gastrojejunal anastomosis: A prospective and randomized trial]]></article-title>
<article-title xml:lang="es"><![CDATA[Reducción del tiempo quirúrgico al realizar la gastroyeyunoanastomosis utilizando sistemas de imagen en tercera dimensión en bypass gástrico laparoscópico: estudio prospectivo aleatorizado]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rojano-Rodríguez]]></surname>
<given-names><![CDATA[Martín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Torres-Ruíz]]></surname>
<given-names><![CDATA[Maria]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cuendis-Velazquez]]></surname>
<given-names><![CDATA[Adolfo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Romero-Loera]]></surname>
<given-names><![CDATA[Luz S.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reséndiz-Barragán]]></surname>
<given-names><![CDATA[Monserrat]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rentería-Palomo]]></surname>
<given-names><![CDATA[Enrique]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vazquez-Cárdenas]]></surname>
<given-names><![CDATA[Paola]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Moreno-Portillo]]></surname>
<given-names><![CDATA[Mucio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital General "Dr. Manuel Gea González" Departamento de Endoscopía, Invasión Mínima Gastrointestinal y Cirugía ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital General "Dr. Manuel Gea González" Obesidad y Clínica Metabólica ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Hospital General "Dr. Manuel Gea Gonzále" Departamento de Cirugía Endoscopía General ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2020</year>
</pub-date>
<volume>88</volume>
<numero>2</numero>
<fpage>170</fpage>
<lpage>174</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2444-054X2020000200170&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2444-054X2020000200170&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2444-054X2020000200170&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Objective: The objective of this study was to compare the total procedure time and task-specific execution time in gastric bypass using a three-dimensional (3D) versus two-dimensional (2D) imaging system.  Materials and methods: This study was a prospective and randomized clinical trial. Forty obese patients were randomized into two groups: gastric bypass with 3D imaging system or with conventional 2D system. The primary endpoint was operative time during manual gastrojejunal anastomosis. Data collection was carried out on demographics, comorbidities, operative time in three stages, and complications. The same surgeon performed all surgeries. Two patients were excluded because technical issues were encountered for viewing their videos during the trial.  Results: A total of 20 patients in the Laparoscopic Gastric Bypass (LGB) 3D group and 18 in the LGB 2D group were analyzed. There were no significant differences in the pre-operative data. The average procedure time was 16.5 min lower in the 3D group versus the 2D group. Execution time for specific tasks was not statistically significant, except for the gastrojejunal anastomosis, which is routinely performed as a manual anastomosis in our surgery group. There was no complication intra- or post-operative.  Conclusions: The use of a 3D imaging system for laparoscopic gastric bypass was associated with a shorter total operative time, especially for the hand-sewn gastrojejunal anastomosis, compared with the 2D imaging system.  Objetivo: Comparar el tiempo total del procedimiento y de tareas específicas en bypass gástrico laparoscópico (BGL) utilizando sistemas de imagen 3D y 2D]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Método: Estudio prospectivo, aleatorizado, con 40 pacientes obesos divididos en dos grupos: BGL 2D o 3D. El objetivo principal fue medir el tiempo al realizar la gastroyeyunoanastomosis manual. La recolección de datos incluyó comorbilidad, demografía, tiempo operatorio en tres fases (formación de reservorio, gastroyeyunoanastomosis y yeyunoyeyunoanastomosis) y complicaciones posoperatorias. El mismo cirujano realizó los procedimientos. Se excluyeron dos pacientes por incapacidad para abrir el video.  Resultados: Se analizaron 20 pacientes en el grupo 3D y 18 en el grupo 2D. No hubo diferencias significativas en los datos preoperatorios. El tiempo promedio del procedimiento fue menor en el grupo 3D que en el 2D en 16,5 minutos. El tiempo de ejecución para realizar tareas solo fue significativo al realizar la gastroyeyunoanastomosis. No hubo ninguna complicación intraoperatoria ni posoperatoria.  Conclusiones: El uso de un sistema de imagen 3D se asoció con un menor tiempo quirúrgico total, en especial para la gastroyeyunoanastomosis manual, en comparación con el sistema de imagen 2D.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Gastrojejunal anastomosis]]></kwd>
<kwd lng="en"><![CDATA[Metabolic surgery]]></kwd>
<kwd lng="en"><![CDATA[Three-dimensional and two-dimensional imaging system]]></kwd>
<kwd lng="en"><![CDATA[Laparoscopy]]></kwd>
<kwd lng="es"><![CDATA[Gastroyeyunoanastomosis]]></kwd>
<kwd lng="es"><![CDATA[Cirugía metabólica]]></kwd>
<kwd lng="es"><![CDATA[Sistemas de imagen 3D y 2D]]></kwd>
<kwd lng="es"><![CDATA[Cirugía laparoscópica]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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