<?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>0034-9887</journal-id>
<journal-title><![CDATA[Revista médica de Chile]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. méd. Chile]]></abbrev-journal-title>
<issn>0034-9887</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Médica de Santiago]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0034-98872012000600002</article-id>
<article-id pub-id-type="doi">10.4067/S0034-98872012000600002</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Rol de la cirugía mínimamente invasiva en la patología esofágica benigna: reporte de una serie de casos]]></article-title>
<article-title xml:lang="en"><![CDATA[Laparoscopic surgery for benign esophageal diseases]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Braghetto M]]></surname>
<given-names><![CDATA[Italo]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Korn B]]></surname>
<given-names><![CDATA[Owen]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cardemil H]]></surname>
<given-names><![CDATA[Gonzalo]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Valladares H]]></surname>
<given-names><![CDATA[Héctor]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Masia L]]></surname>
<given-names><![CDATA[Gonzalo]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mandiola B]]></surname>
<given-names><![CDATA[Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad de Chile Facultad de Medicina Hospital Clínico de la Universidad de Chile Dr. José Joaquín Aguirre]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Chile</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2012</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2012</year>
</pub-date>
<volume>140</volume>
<numero>6</numero>
<fpage>703</fpage>
<lpage>712</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.cl/scielo.php?script=sci_arttext&amp;pid=S0034-98872012000600002&amp;lng=en&amp;nrm=iso&amp;tlng=en"></self-uri><self-uri xlink:href="http://www.scielo.cl/scielo.php?script=sci_abstract&amp;pid=S0034-98872012000600002&amp;lng=en&amp;nrm=iso&amp;tlng=en"></self-uri><self-uri xlink:href="http://www.scielo.cl/scielo.php?script=sci_pdf&amp;pid=S0034-98872012000600002&amp;lng=en&amp;nrm=iso&amp;tlng=en"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Background: Minimally invasive surgery has the advantage of a lower rate of complications and can be used for benign esophageal diseases. Aim: To report a single surgeon experience with laparoscopic surgery for benign esophageal diseases. Material and Methods: Prospective analysis of 421 patients (160 males) with benign esophageal disease, who were subjected to laparoscopic surgery by a single surgeon. Immediate mortality, surgical complications and long term results in terms of symptoms recurrence, were analyzed. Results: The underlying diagnoses of the operated patients were Barrett's esophagus or esophagitis in 257, hiatal hernia in 91, achalasia in 68 and esophageal diverticula in five. Surgery obtained successful results in 90% of patients with Barrett's esophagus. Among patients with hiatal hernia, there was a 12% rate of complications and a 30% recurrence, when a mesh was not used. Among patients with achalasia the recurrence rate was less than 5%. Conclusions: Laparoscopic surgery has a fair success rate in benign esophageal diseases, with a lower rate of complications.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Barrett's esophagus]]></kwd>
<kwd lng="en"><![CDATA[Esophageal diseases]]></kwd>
<kwd lng="en"><![CDATA[Laparoscopy]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[  	    <p align="justify"><font face="verdana" size="2">Rev Med Chile 2012; 140: 703&#45;712</font></p> 	    <p align="right"><font face="verdana" size="2"><strong>ART&Iacute;CULOS DE INVESTIGACI&Oacute;N</strong></font></p> 	    <p align="justify">&nbsp;</p>      <p align="justify"><font face="verdana" size="4"><strong>Rol de la cirug&iacute;a m&iacute;nimamente invasiva en la patolog&iacute;a esof&aacute;gica benigna: reporte de una serie de casos</strong></font></p>     <p align="justify"><font size="3"><strong><font face="verdana">Laparoscopic surgery for benign esophageal diseases</font></strong><font face="verdana"></font></font></p>     <p align="justify">&nbsp;</p>     <p align="justify"><font face="verdana" size="2"><strong>Italo Braghetto M., Owen Korn B., Gonzalo Cardemil H., H&eacute;ctor Valladares H., Gonzalo Masia L., Carlos Mandiola B.</strong></font></p>  	    <p align="justify"><font face="verdana" size="2">Departamento de Cirug&iacute;a, Facultad de Medicina Hospital Cl&iacute;nico de la Universidad de Chile "Dr. Jos&eacute; Joaqu&iacute;n Aguirre" Universidad de Chile, Chile.</font></p>     <p align="justify"><font face="verdana" size="2"><a name="top"></a><a href="#back">Correspondencia a:</a></font></p>     ]]></body>
<body><![CDATA[<p align="justify"><hr width="100%" size="1">     <p align="justify"><font face="verdana" size="2"><b><i>Background:</i></b> <i>Minimally invasive surgery has the advantage of a lower rate of complications and can be used for benign esophageal diseases. <b>Aim:</b> To report a single surgeon experience with laparoscopic surgery for benign esophageal diseases. <b>Material and Methods:</b> Prospective analysis of 421 patients (160 males) with benign esophageal disease, who were subjected to laparoscopic surgery by a single surgeon. Immediate mortality, surgical complications and long term results in terms of symptoms recurrence, were analyzed. <b>Results:</b> The underlying diagnoses of the operated patients were Barrett's esophagus or esophagitis in 257, hiatal hernia in 91, achalasia in 68 and esophageal diverticula in five. Surgery obtained successful results in 90% of patients with Barrett's esophagus. Among patients with hiatal hernia, there was a 12% rate of complications and a 30% recurrence, when a mesh was not used. Among patients with achalasia the recurrence rate was less than 5%. <b>Conclusions:</b> Laparoscopic surgery has a fair success rate in benign esophageal diseases, with a lower rate of complications.</i></font></p>  	    <p align="justify"><font face="verdana" size="2"><b><i>Key words:</i></b> <i>Barrett's esophagus; Esophageal diseases; Laparoscopy.</i></font></p>     <p align="justify"><hr width="100%" size="1">     <p align="justify"><font face="verdana" size="2">En los &uacute;ltimos 15 a&ntilde;os, la cirug&iacute;a m&iacute;nimamente invasiva ha mostrado grandes avances en la t&eacute;cnica quir&uacute;rgica y ha hecho posible la disminuci&oacute;n de la morbimortalidad postoperatoria. Numerosos son los estudios que se han realizado en el seguimiento de patolog&iacute;as benignas susceptibles de ser abordadas por cirug&iacute;a m&iacute;nimamente invasiva, tales como enfermedad por reflujo gastroesof&aacute;gico (RGE), hernia hiatal, divert&iacute;culos esof&aacute;gicos y acalasia, patolog&iacute;as que tambi&eacute;n en nuestro grupo de trabajo han sido tratadas con procedimientos m&iacute;nimamente invasivos. Las indicaciones quir&uacute;rgicas para estas patolog&iacute;as est&aacute;n claramente establecidas en la literatura nacional e internacional y hemos seguido estrictamente estos protocolos<sup>1&#45;3</sup>.</font></p> 	    <p align="justify"><font face="verdana" size="2">En este art&iacute;culo, se analizan los resultados e indicaciones obtenidos por nuestro grupo en pacientes con patolog&iacute;a esof&aacute;gica benigna sometidos a diferentes t&eacute;cnicas quir&uacute;rgicas ya sea por v&iacute;a laparosc&oacute;pica o toracosc&oacute;pica, y se comparan estos resultados con los resultados obtenidos en la era de la cirug&iacute;a abierta publicados en la literatura internacional.</font></p>  	    <p align="justify"><font face="verdana" size="3"><b>Material y M&eacute;todo</b></font></p>  	    <p align="justify"><font face="verdana" size="2">En este trabajo prospectivo se incluyeron un total de 421 pacientes consecutivos (160 hombres, 261 mujeres) con un promedio de edad de 49,8 a&ntilde;os (rango entre 37 y 78 a&ntilde;os) distribuidos de acuerdo a su patolog&iacute;a esof&aacute;gica y la t&eacute;cnica quir&uacute;rgica a la que fueron sometidos y que fueron operados exclusivamente por el autor (IB) del trabajo en los &uacute;ltimos 8 a&ntilde;os. Todos estos pacientes se estudiaron de acuerdo a nuestro protocolo de estudio de la patolog&iacute;a esof&aacute;gica, lo que incluye endoscopia, biopsia, manometr&iacute;a, monitoreo de pH intraesof&aacute;gico de 24 hrs y radiolog&iacute;a baritada de acuerdo a los m&eacute;todos previamente publicados<sup>4&#45;6</sup>. Los procedimientos quir&uacute;rgicos empleados por el equipo quir&uacute;rgico se muestran en la <a href="#t1">Tabla.1</a>, seg&uacute;n las t&eacute;cnicas descritas ampliamente en publicaciones anteriores para cada una de las patolog&iacute;as incluidas en este estudio<sup>7&#45;9</sup>. S&oacute;lo se excluyeron de esta serie laparosc&oacute;pica aquellos pacientes que hab&iacute;an sido sometidos previamente a intervenciones quir&uacute;rgicas laparosc&oacute;picas o abiertas por la misma patolog&iacute;a. Las t&eacute;cnicas quir&uacute;rgicas empleadas para el reflujo gastroesof&aacute;gico han sido previamente descritas, emple&aacute;ndose la fundoplicatura calibrada en aquellos pacientes con esofagitis o con es&oacute;fago de Barrett, Barrett corto<sup>7</sup> en pacientes con es&oacute;fago de Barrett extenso o complicados con &uacute;lceras o estenosis se efectu&oacute; la fundoplicatura asociada a una t&eacute;cnica de supresi&oacute;n &aacute;cida y derivaci&oacute;n biliar consistente en vagotom&iacute;a troncal o selectiva m&aacute;s antrectom&iacute;a y gastroyeyunostom&iacute;a en Y&#45;de&#45;Roux con el objeto de evitar reflujo &aacute;cido y biliar presente en estos enfermos<sup>10,11</sup>.</font></p> 	    <p align="center"><font face="verdana" size="2"><b><a name="t1"></a>     <br> 	</b></font></p>     <table width="45%" border="0" align="center">       <tr>         <td align="center"><font face="verdana" size="2"><b>Tabla 1. </b>Experiencia en patolog&iacute;a esof&aacute;gica no tumoral tratada con cirug&iacute;a laparosc&oacute;pica</font></td>       </tr>       <tr>         <td align="center"><img src="/fbpe/img/rmc/v140n6/art02-tabla1.jpg" alt="" width="600" height="214"></td>       </tr>     </table>     
]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">Las hernias hiatales se clasifican de acuerdo al consenso internacional al respecto<sup>12</sup>, mientras que en tipo I, II, III y IV, con frecuencias de 90%, 4%, 5% y 1% respectivamente. La hernia hiatal de tipo I o por deslizamiento axial, es aquella en la cual existe un desplazamiento de la UGE hacia el interior del mediastino a trav&eacute;s del hiato esof&aacute;gico, con saco herniario. La hernia hiatal de tipo II o paraesof&aacute;gica, es aquella en la cual existe una herniaci&oacute;n del fondo g&aacute;strico hacia el interior del mediastino dentro de un saco herniario, manteniendo la posici&oacute;n correcta de la UGE intraabdominal. La hernia hiatal de tipo III, es una hernia mixta en la cual la UGE y una gran porci&oacute;n del est&oacute;mago ha migrado hacia el interior del mediastino. Por &uacute;ltimo, la hernia hiatal de tipo IV, es aquella en la cual existe una gran hernia dentro del mediastino que contiene est&oacute;mago, omento y a veces otras v&iacute;sceras abdominales.</font></p>  	    <p align="justify"><font face="verdana" size="2">Se emple&oacute; el test de </font>&#967;<font face="verdana" size="2"><sup>2</sup> o test de de Fisher seg&uacute;n los datos que se quisieran comparar. Se analizaron la morbimortalidad y los resultados alejados evaluados objetivamente: recurrencia de s&iacute;ntomas (pirosis o regurgitaci&oacute;n, disfagia, dolor retro&#45;esternal), hallazgos endosc&oacute;picos, mano&#45;m&eacute;tricos o monitoreo de pH de 24 h anormal y radiol&oacute;gicos, de acuerdo al mismo protocolo preoperatorio y a la patolog&iacute;a por la que fueron operados. La informaci&oacute;n de todos estos pacientes fue registrada en un base de datos (Excell) en la cual se registran todos los datos relacionados a diagn&oacute;stico, estudios endosc&oacute;picos, radiol&oacute;gicos, manom&eacute;tricos pre y postoperatorias, como tambi&eacute;n las complicaciones precoces y el seguimiento a largo plazo.</font></p>      <p align="justify"><font face="verdana" size="3"><b>Resultados</b></font></p>  	    <p align="justify"><font face="verdana" size="2">En la <a href="#t2">Tabla.2</a>   se presentan las complicaciones precoces postoperatorias clasificadas en mayores y menores, en los pacientes con diferentes diagn&oacute;sticos y tratamientos quir&uacute;rgicos empleados, en lo que se destaca la m&iacute;nima tasa de complicaciones mayores y pr&aacute;cticamente nula mortalidad.</font></p>  	    <p align="center"><font face="verdana" size="2"><b><a name="t2"></a>      <br> 	</b></font></p>      <table width="45%" border="0" align="center">       <tr>         <td><font face="verdana" size="2"><b>Tabla 2. </b>Complicaciones precoces post cirug&iacute;a laparosc&oacute;pica por patolog&iacute;a esof&aacute;gica benigna</font></td>       </tr>       <tr>         <td align="center"><img src="/fbpe/img/rmc/v140n6/art02-tabla2.jpg" alt="" width="600" height="240"></td>       </tr>     </table>      
<p align="justify"><font face="verdana" size="2"><b><i>1. Enfermedad por reflujo gastroesof&aacute;gico (RGE) y es&oacute;fago de Barrett</i></b></font></p>  	    <p align="justify"><font face="verdana" size="2">Cirug&iacute;a antirreflujo se efectu&oacute; en 185 pacientes con esofagitis grado A&#45;B de la clasificaci&oacute;n de Los &Aacute;ngeles y sin es&oacute;fago de Barrett. &Eacute;xito sintom&aacute;tico se observ&oacute; sobre el 90% y una esofagitis persistente o recurrente en 15%, manometr&iacute;a anormal en 14% de los casos y el monitoreo de pH intraesof&aacute;gico de 24 h mostr&oacute; persistencia de reflujo &aacute;cido en 19,5%, lo que demuestra que muchos pacientes aun siendo asintom&aacute;ticos presentan un esf&iacute;nter hipotenso y reflujo &aacute;cido postoperatorio, siendo estos pacientes en su gran mayor&iacute;a portadores de es&oacute;fago de Barrett. Los pacientes con es&oacute;fago de Barrett (n = 72) merecen un an&aacute;lisis aparte. Hay 3 grupos de pacientes, en 22 de ellos con es&oacute;fago de Barrett corto (&lt; de 3 cms de longitud) se efect&uacute;a calibraci&oacute;n cardial y fundoplicatura, y en otros 28 con es&oacute;fago de Barrett extenso o complicado (presencia de &uacute;lcera o estenosis), adem&aacute;s de la fundoplicatura, se efect&uacute;a un procedimiento de supresi&oacute;n &aacute;cida y derivaci&oacute;n biliar mediante vagotom&iacute;a, antrectom&iacute;a m&aacute;s gastroyeyunostom&iacute;a en Y de Roux. Se incluye un tercer grupo de pacientes que teniendo es&oacute;fago de Barrett presentan adem&aacute;s obesidad m&oacute;rbida. En estos pacientes se efectu&oacute; una gastrectom&iacute;a casi total (95%) con gastroyeyunostom&iacute;a en Y de Roux con la finalidad de tratar ambas patolog&iacute;as. Los pacientes con es&oacute;fago de Barrett extenso o complicado operados con fundoplicatura cl&aacute;sica, presenta malos resultados con alta recurrencia de los s&iacute;ntomas de reflujo, esofagitis endosc&oacute;pica, incompetencia del esf&iacute;nter gastroesof&aacute;gico y reflujo &aacute;cido postoperatorio anormal en comparaci&oacute;n a los resultados postoperatorios de los pacientes sometidos a supresi&oacute;n &aacute;cida y derivaci&oacute;n biliar adicionada a la fundoplicatura. Todos estos pacientes tienen m&aacute;s de 3 a&ntilde;os de seguimiento (rango: 3&#45;8 a&ntilde;os) (<a href="#t3">Tabla.3</a>).</font></p> 	    <p align="center"><font face="verdana" size="2"><b><a name="t3"></a>    <br> </b></font></p> 	<table width="45%" border="0" align="center">       <tr>         <td><font face="verdana" size="2"><b>Tabla 3. </b>Falla sintom&aacute;tica y objetiva en pacientes con esofagitis sin Es&oacute;fago de Barrett sometidos a fundoplicatura y pacientes con esofagitis y Barrett sometidos a diferentes procedimientos quir&uacute;rgicos por v&iacute;a laparosc&oacute;pica</font></td>       </tr>       <tr>         <td align="center"><img src="/fbpe/img/rmc/v140n6/art02-tabla3.jpg" alt="" width="600" height="253"></td>       </tr>     </table>     
]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2"><b><i>2. Hernia hiatal (HH)</i></b></font></p>  	    <p align="justify"><font face="verdana" size="2">La indicaci&oacute;n de cirug&iacute;a en estos pacientes se debi&oacute; a que todos ellos presentaban s&iacute;ntomas secundarios a reflujo gastroesof&aacute;gico severo, s&iacute;ntomas respiratorios algunos de ellos con cuadros de broncoaspiraci&oacute;n, neumonitis a repetici&oacute;n, s&iacute;ntomas cardiovasculares asociados al gran tama&ntilde;o de su hernia, en general mayores de 5 cm en ocasiones con v&oacute;lvulo g&aacute;strico con mal vaciamiento del est&oacute;mago.</font></p>  	    <p align="justify"><font face="verdana" size="2">Se operaron 91 pacientes, 43 casos de hernia hiatal tipo I, 5 casos de tipo II, 28 casos de tipo III y 15 casos de tipo IV. Complicaciones postoperatorias ocurrieron en 11 pacientes (13,1%), siendo las m&aacute;s frecuentes derrame pleural en 3 pacientes, disfagia postoperatoria que necesit&oacute; dilataci&oacute;n en 4 pacientes, aton&iacute;a g&aacute;strica transitoria en 2 pacientes, 1 paciente con hemoperitoneo y 1 paciente con hemorragia digestiva alta por &uacute;lcera g&aacute;strica. No hubo mortalidad postoperatoria en esta serie.</font></p>  	    <p align="justify"><font face="verdana" size="2">Las recidivas fueron evaluadas en funci&oacute;n de un estudio radiol&oacute;gico pre y post operatorio. En total hubo 12 casos de recidiva entre los cuales se encontraba 3 casos de los 43 de hernia hiatal tipo I, 5 casos en pacientes con hernia hiatal tipo III y 4 casos de los 15 con hernia hiatal tipo IV. Los pacientes en los cuales se ha usado malla de refuerzo la recurrencia de la hernia es significativamente menor (<a href="#t4">Tablas.4</a>   y <a href="#t5">5</a>).</font></p>  	    <p align="center"><font face="verdana" size="2"><b><a name="t4"></a>     <br> 	</b></font></p>      <table width="45%" border="0" align="center">       <tr>         <td><font face="verdana" size="2"><b>Tabla 4. </b>Experiencia en 91 pacientes con hernia hiatales operados por v&iacute;a laparoc&oacute;pica. Tipo de hernia y recidiva postoperatoria</font></td>       </tr>       <tr>         <td align="center"><img src="/fbpe/img/rmc/v140n6/art02-tabla4.jpg" alt="" width="351" height="180"></td>       </tr>     </table>     
<p align="center"><font face="verdana" size="2"><b><a name="t5"></a> </b></font>    <br> </p> <table width="45%" border="0" align="center">   <tr>     <td align="center"><font face="verdana" size="2"><b>Tabla 5. </b>Recurrencia seg&uacute;n tipo de hernia con y sin malla de refuerzo</font></td>   </tr>   <tr>     <td align="center"><img src="/fbpe/img/rmc/v140n6/art02-tabla5.jpg" alt="" width="350" height="198"></td>   </tr> </table>     
<p align="justify"><font face="verdana" size="2"><b><i>3. Acalasia esof&aacute;gica</i></b></font></p>  	    <p align="justify"><font face="verdana" size="2">Del total de pacientes, en tres casos existieron complicaciones intraoperatorias por da&ntilde;o de la mucosa esof&aacute;gica, siendo suturadas de inmediato en dos de ellos, con necesidad de conversi&oacute;n s&oacute;lo en un caso. Se observ&oacute; un caso de neumoperitoneo que se trat&oacute; s&oacute;lo con drenaje percut&aacute;neo y la estad&iacute;a hospitalaria fue de 3 d&iacute;as (<a href="#t2">Tabla.2</a>). En 15 de 68 (22%) pacientes se observ&oacute; s&iacute;ntomas de RGE postoperatorio y en todos ellos se encontr&oacute; reflujo &aacute;cido positivo, presentando uno de ellos signos de esofagitis erosiva al estudio endosc&oacute;pico. Del total de pacientes operados, s&oacute;lo en cinco de ellos (7,3%) se ha precisado de un tratamiento de dilataci&oacute;n endosc&oacute;pica &uacute;nica dada la presencia de disfagia post quir&uacute;rgica, con resultados satisfactorios. Los resultados cl&iacute;nicos y funcionales de 68 pacientes controlados se muestran en la <a href="#t6">Tabla.6</a>, confirm&aacute;ndose excelentes resultados en cuanto a normalizaci&oacute;n de la presi&oacute;n de reposo y de la relajaci&oacute;n del esf&iacute;nter esof&aacute;gico inferior y disminuci&oacute;n del di&aacute;metro del cuerpo esof&aacute;gico al obtenerse mejor&iacute;a del vaciamiento esof&aacute;gico.</font></p>  	    ]]></body>
<body><![CDATA[<p align="center"><font face="verdana" size="2"><b><a name="t6"></a>     <br> 	</b></font></p>      <table width="45%" border="0" align="center">       <tr>         <td align="center"><font face="verdana" size="2"><b>Tabla 6. </b>Resultados manom&eacute;tricos en el tratamiento quir&uacute;rgico de la acalasia esof&aacute;gica</font></td>       </tr>       <tr>         <td align="center"><img src="/fbpe/img/rmc/v140n6/art02-tabla6.jpg" alt="" width="416" height="185"></td>       </tr>     </table>     
<p align="justify"><font face="verdana" size="2"><b><i>4. Divert&iacute;culos esof&aacute;gicos</i></b></font></p>  	    <p align="justify"><font face="verdana" size="2">En nuestro grupo se trat&oacute; 1 paciente portador de una f&iacute;stula es&oacute;fago&#45;bronquial secundaria a un divert&iacute;culo medio tor&aacute;cico abordado por v&iacute;a transtor&aacute;cica, resecando el divert&iacute;culo y realizando sutura tanto del lado bronquial como del cuello esof&aacute;gico del divert&iacute;culo y 4 pacientes con divert&iacute;culos epifr&eacute;nicos, tratados con resecci&oacute;n del divert&iacute;culo y miotom&iacute;a del esf&iacute;nter esof&aacute;gico inferior abordados por v&iacute;a trans&#45;hiatal (<a href="#f1">Figuras.1</a>   y <a href="#f2">2</a>). S&oacute;lo hubo una complicaci&oacute;n postoperatoria derivada de una peque&ntilde;a fuga localizada de la l&iacute;nea de sutura que fue tratada medicamente (<a href="#t2">Tabla.2</a>).</font></p> 	    <p align="center"><font face="verdana" size="2"><strong><a name="f1"></a></strong></font>    <br> 	</p>     <table width="45%" border="0" align="center">       <tr>         <td align="center"><img src="/fbpe/img/rmc/v140n6/art02-fig1.jpg" alt="" width="600" height="373"></td>       </tr>       <tr>         <td><font face="verdana" size="2"><strong>Figura 1. </strong>Visi&oacute;n endosc&oacute;pica y radiol&oacute;gica del divert&iacute;culo mediotor&aacute;cico y f&iacute;stula broncoesof&aacute;gica.</font></td>       </tr>     </table>     
<p align="center"><font face="verdana" size="2"><strong>  <a name="f2" id="f2"></a></strong></font>    <br> </p>  <table width="45%" border="0" align="center">   <tr>     <td align="center"><img src="/fbpe/img/rmc/v140n6/art02-fig2.jpg" alt="" width="528" height="221"></td>   </tr>   <tr>     <td align="center"><font face="verdana" size="2"><strong>Figura 2. </strong>Divert&iacute;culo epifr&eacute;nico y pieza resecada por v&iacute;a laparosc&oacute;pica transhiatal.</font></td>   </tr> </table>      
<p align="justify"><font face="verdana" size="3"><b>Discusi&oacute;n</b></font></p>  	    <p align="justify"><font face="verdana" size="2"><b><i>1. Enfermedad por reflujo gastroesof&aacute;gico y es&oacute;fago de Barrett</i></b></font></p>  	    ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">Los procedimientos m&iacute;nimamente invasivos en la cirug&iacute;a antirreflujo son actualmente aceptados como <i>gold standard</i> para el tratamiento quir&uacute;rgico de pacientes con esofagitis por RGE, cuya indicaci&oacute;n quir&uacute;rgica cumpla con los requisitos conocidos internacionalmente (Consenso Montreal)<sup>13</sup>. La fundoplicatura de Nissen, la fundoplicatura modificada de Nissen&#45;Rosetti o la fundoplicatura parcial con las t&eacute;cnicas de Toupet o de Lind, han sido los procedimientos quir&uacute;rgicos m&aacute;s com&uacute;nmente utilizados<sup>6&#45;9</sup>. En nuestra experiencia, la fundoplicatura calibrada m&aacute;s gastropexia posterior ha sido evaluada a corto y largo plazo, mostrando resultados equivalentes a los otros procedimientos con resultados alejados ampliamente aceptados en la literatura mundial<sup>14&#45;16</sup>.</font></p>  	    <p align="justify"><font face="verdana" size="2">En pacientes con es&oacute;fago de Barrett corto no complicado m&aacute;s de 75% de los pacientes presentan excelentes resultados sintom&aacute;ticos. Sin embrago, en pacientes con EB extenso o complicado, con &uacute;lcera o estenosis sometidos a fundoplicatura de Nissen, la recurrencia es muy frecuente, siendo necesario medicaci&oacute;n antirreflujo en un alto porcentaje de ellos, la recurrencia de reflujo &aacute;cido persistente es de 25% de los pacientes.</font></p>  	    <p align="justify"><font face="verdana" size="2">En una revisi&oacute;n de la literatura, se ha reportado que 2,5% de pacientes operados por RGE sin esofagitis (grupo control) deben ser sometidos a cirug&iacute;a de revisi&oacute;n, en cambio 6,5% de los pacientes con esofagitis sin Barrett y 12% de los pacientes con EB debieron ser reoperados<sup>17&#45;19</sup>.</font></p>  	    <p align="justify"><font face="verdana" size="2">De acuerdo a nuestra conducta<sup>18</sup> de controlar tanto el reflujo &aacute;cido como biliar, factores importantes en la patogenia de la enfermedad, hemos operado 29 pacientes con EB extenso complicado, realizando una t&eacute;cnica antirreflujo gastroesof&aacute;gico asociado con un procedimiento de supresi&oacute;n &aacute;cida y derivaci&oacute;n duodenal (vagotom&iacute;a + antrectom&iacute;a + gastroyeyunostom&iacute;a en Y de Roux) por v&iacute;a laparosc&oacute;pica, demostrando ser una t&eacute;cnica factible, sin mayores complicaciones, lo que actualmente est&aacute; siendo aceptado en la literatura quir&uacute;rgica internacional<sup>20</sup>. En 21 pacientes con EB y obesidad asociada hemos efectuado una resecci&oacute;n g&aacute;strica 95% con anastomosis gastroyeyunal en Y de Roux con un asa de 150&#45;170 cm de largo (asa alimentaria) con excelentes resultados sintom&aacute;ticos y desaparici&oacute;n de la esofagitis. Csendes y otras publicaciones recomiendan esta t&eacute;cnica para estos pacientes resolviendo el problema de su obesidad y de los s&iacute;ntomas derivados del RGE<sup>20&#45;27</sup>. Sin embargo, este punto no est&aacute; a&uacute;n dilucido y existe gran controversia entre gastroenter&oacute;logos y cirujanos dedicados al tema. De acuerdo a recientes publicaciones tanto el tratamiento m&eacute;dico como la fundoplicatura pueden ser opciones recomendables para el control de la exposici&oacute;n al &aacute;cido del es&oacute;fago distal, pero no mencionan t&eacute;cnicas de supresi&oacute;n &aacute;cida y derivaci&oacute;n biliar para control de ambos componentes de reflujo<sup>28</sup>.</font></p>  	    <p align="justify"><font face="verdana" size="2"><b><i>2. Hernias hiatales</i></b></font></p>  	    <p align="justify"><font face="verdana" size="2">La indicaci&oacute;n quir&uacute;rgica de las hernias hiatales est&aacute; dada por su gran asociaci&oacute;n con enfermedad por RGE (cerca de 70%), y complicaciones, tales como v&oacute;lvulo o incarceraci&oacute;n del contenido con obstrucci&oacute;n, lo que puede traducirse como disfagia, v&oacute;mitos, dolor re&#45;troesternal, disnea o broncoaspiraci&oacute;n. Cuando esto se asocia a hemorragia digestiva alta, se debe sospechar en isquemia, estragulaci&oacute;n o perforaci&oacute;n del &oacute;rgano, que son complicaciones asociadas a una alta morbilidad y mortalidad<sup>29&#45;40</sup>. La evidencia actual indica realizar el procedimiento antirreflujo, debido a que una gran mayor&iacute;a de pacientes tienen enfermedad por RGE. Existe tendencia hacia el uso de malla en hernias de m&aacute;s de 5 cm de di&aacute;metro en base a que existe una mayor recurrencia de HH en los grupos de pacientes en que no se ha utilizado (19%) versus los grupos en que s&iacute; se ha utilizado (0&#45;5%) (<a href="#t7">Tabla.7</a>).</font></p>  	    <p align="center"><font face="verdana" size="2"><b><a name="t7"></a>      <br> 	</b></font></p>     <table width="45%" border="0" align="center">       <tr>         <td align="center"><font face="verdana" size="2"><b>Tabla 7. </b>Cirug&iacute;a laparosc&oacute;pica en hernia hiatal: revisi&oacute;n de 20 trabajos seleccionados</font></td>       </tr>       <tr>         <td align="center"><img src="/fbpe/img/rmc/v140n6/art02-tabla7.jpg" alt="" width="349" height="219"></td>       </tr>     </table>     
<p align="justify"><font face="verdana" size="2">De la revisi&oacute;n de la literatura publicada entre los a&ntilde;os 1995 y 2003 en un total de 764 pacientes operados, las complicaciones se desarrollaron en 18,1% (12&#45;28%), s&iacute;ntomas postoperatorios persistieron en 13,3% (8&#45;21%) y la recurrencia se desarroll&oacute; en el 11,9% (0&#45;42%) de los casos. De los tres estudios que utilizaron malla (121 pacientes), s&oacute;lo uno present&oacute; 5% de recurrencias (<a href="#t8">Tabla.8</a>)<sup>35&#45;40</sup>.</font></p> 	    <p align="center"><font face="verdana" size="2"><b><a name="t8"></a>     ]]></body>
<body><![CDATA[<br>     </b></font></p>     <table width="45%" border="0" align="center">       <tr>         <td><font face="verdana" size="2"><b>Tabla 8. </b>Complicaciones post operatorias en cirug&iacute;a laparosc&oacute;pica de las hernias hiatales: revisi&oacute;n de la literatura (n = 1.366 pacientes)</font></td>       </tr>       <tr>         <td align="center"><img src="/fbpe/img/rmc/v140n6/art02-tabla8.jpg" alt="" width="345" height="178"></td>       </tr>     </table>     
<p align="justify"><font face="verdana" size="2"><b><i>3. Acalasia esof&aacute;gica</i></b></font></p>  	    <p align="justify"><font face="verdana" size="2">Diversos estudios han comparado la eficacia de las terapias m&eacute;dicas respecto a los resultados ofrecidos por las distintas t&eacute;cnicas quir&uacute;rgicas en el enfrenta&#45;miento de esta enfermedad, con pobres resultados a largo plazo<sup>41&#45;44</sup>. Es as&iacute; como la cardiomiotom&iacute;a anterior se ha convertido en el tratamiento de elecci&oacute;n de la acalasia esof&aacute;gica, al ser m&aacute;s efectiva en mejorar la disfagia, presentando m&iacute;nimas tasas de complicaciones intraoperatorias y conversi&oacute;n, un menor tiempo de estad&iacute;a intrahospitalaria y excelentes resultados a largo plazo con tasa de recurrencia de la enfermedad menos de 5%<sup>45&#45;48</sup>.</font></p>  	    <p align="justify"><font face="verdana" size="2">La recurrencia de la enfermedad, hernias hiatales paraesof&aacute;gicas o reflujo gastroesof&aacute;gico asociado o no a esofagitis en el postoperatorio alejado var&iacute;an entre 10 y 25% de frecuencia<sup>39&#45;44</sup>. Se han reportado trabajos que consideran modificaciones a la t&eacute;cnica antes mencionada con el objeto de evitar o reducir las complicaciones ya descritas<sup>48</sup>.</font></p> 	    <p align="justify"><font face="verdana" size="2"><b><i>4. Patolog&iacute;a diverticular del es&oacute;fago</i></b></font></p>  	    <p align="justify"><font face="verdana" size="2">La patolog&iacute;a diverticular del es&oacute;fago considera la existencia de divert&iacute;culos de Zenker; divert&iacute;culos medio tor&aacute;cicos y divert&iacute;culos epifr&eacute;nicos.</font></p>  	    <p align="justify"><font face="verdana" size="2">En los pacientes con divert&iacute;culo de Zenker la diverticulectom&iacute;a con miotom&iacute;a cricofar&iacute;ngea cuyos resultados ha exhibido tasas de resoluci&oacute;n de los s&iacute;ntomas superior a 95%. Las complicaciones var&iacute;an entre 10 y 30%, asoci&aacute;ndose a una mortalidad m&iacute;nima<sup>45&#45;53</sup>. Los procedimientos endosc&oacute;picos presentan una tasa promedio de complicaciones de 5,5%, y una tasa de mortalidad promedio de 0,2%, con recurrencia de la sintomatolog&iacute;a de 6,6% para el grupo de t&eacute;cnicas v&iacute;a endosc&oacute;pica<sup>49&#45;57</sup>.</font></p>  	    <p align="justify"><font face="verdana" size="2">En cuanto a la enfermedad diverticular que compromete el tercio medio y distal del es&oacute;fago, en general, para los divert&iacute;culos medio tor&aacute;cicos la indicaci&oacute;n quir&uacute;rgica corresponde a una diverticulectom&iacute;a realizada por v&iacute;a transtor&aacute;cica. En el caso de los divert&iacute;culos epifr&eacute;nicos sintom&aacute;ticos grandes (<a href="#f2">Figura.2</a>) tienen indicaci&oacute;n de una diverticulectom&iacute;a transhiatal junto a una miotom&iacute;a distal<sup>58,59</sup>.</font></p>  	    <p align="justify"><font face="verdana" size="3"><b>Conclusi&oacute;n</b></font></p>  	    <p align="justify"><font face="verdana" size="2">En definitiva, las t&eacute;cnicas de cirug&iacute;a m&iacute;nimamente invasiva dise&ntilde;adas para el abordaje de los diversos tipos de patolog&iacute;as que afectan al es&oacute;fago, resultan por lo general altamente factibles observ&aacute;ndose disminuci&oacute;n de las complicaciones en comparaci&oacute;n a la cirug&iacute;a abierta, con iguales resultados a largo plazo (<a href="#t9">Tabla.9</a>).</font></p> 	    ]]></body>
<body><![CDATA[<p align="center"><font face="verdana" size="2"><b><a name="t9"></a>     <br>     </b></font></p>     <table width="45%" border="0" align="center">       <tr>         <td><font face="verdana" size="2"><b>Tabla 9. </b>Comparaci&oacute;n resultados cirug&iacute;a laparosc&oacute;pica vs cirug&iacute;a abierta en el Hospital Cl&iacute;nico de la Universidad de Chile*</font></td>       </tr>       <tr>         <td align="center"><img src="/fbpe/img/rmc/v140n6/art02-tabla9.jpg" alt="" width="600" height="172"></td>       </tr>     </table>     
<p align="justify"><font face="verdana" size="2">Es indudable, que para el adecuado uso de las distintas t&eacute;cnicas de cirug&iacute;a m&iacute;nimamente invasiva y la maximizaci&oacute;n de sus ventajas, es imprescindible un correcto estudio y selecci&oacute;n de los pacientes, evaluando continuamente los resultados, siendo para ello mandatorio el mejoramiento continuo del entrenamiento y adquisici&oacute;n de destrezas, junto al desarrollo del mejor criterio cl&iacute;nico.</font></p>     <p align="justify">&nbsp;</p>     <p align="justify"><font face="verdana" size="3"><b>Referencias</b></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">1. Watson DL, Jamieson GG. Antireflux surgery in the laparoscopic era. 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Gastroenterolgy 1972; 63: 19&#45;20.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scieloOrg/php/reflinks.php?refpid=S0034-9887201200060000200005&pid=S0034-98872012000600002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');"></a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">6. Csendes A, Miranda M, Espinoza M. Perimeter and location of the muscular gastroesophageal junction or "cardia" in control subjects and in patients with reflux esophagitis or achalasia. Scand J Gastroenterol 1981; 16:951&#45;6.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scieloOrg/php/reflinks.php?refpid=S0034-9887201200060000200006&pid=S0034-98872012000600002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');"></a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">7. Braghetto I, Korn O, Debandi A, Burdiles P, Valladares H, Csendes A. Laparoscopic cardial calibration and gastropexy for treatment of patients with reflux esophagitis: pathophysiological basis and result. 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Surg Laparosc Endosc Percutan Tech 2007; 17: 369&#45;74.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scieloOrg/php/reflinks.php?refpid=S0034-9887201200060000200009&pid=S0034-98872012000600002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');"></a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">10. Braghetto I, Korn O, Valladares H, Debandi A, D&iacute;az JC, Brunet L. Laparoscopic surgical treatment for patients with short and long segment Barrett's esophagus. Which technique in which patient? 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Gastroenterol Latinoam 2005; 16: 122&#45;6.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scieloOrg/php/reflinks.php?refpid=S0034-9887201200060000200059&pid=S0034-98872012000600002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');"></a>&#160;]<!-- end-ref --></font></p>  	<hr align="left" width="30%" size="1"> 	    <p align="justify"><font face="verdana" size="2">Recibido el 23 de marzo de 2010, aceptado el 19 de enero de 2012.</font></p> <font size="2" face="Verdana"><a href="#top"><img src="/fbpe/img/rmc/v140n6/flecha.jpg" width="15" height="17" border="0"></a><a name="back"></a>Correspondencia:</font></p> 	<font face="verdana" size="2">Dr. Italo Braghetto M. Departamento de Cirug&iacute;a Santos Dumont N&deg; 999 Santiago, Chile. Tel&eacute;fono: 56&#45;2&#45;9788334. Fax: 56&#45;2&#45;7370844. 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