<?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>0004-0614</journal-id>
<journal-title><![CDATA[Archivos Españoles de Urología (Ed. impresa)]]></journal-title>
<abbrev-journal-title><![CDATA[Arch. Esp. Urol.]]></abbrev-journal-title>
<issn>0004-0614</issn>
<publisher>
<publisher-name><![CDATA[INIESTARES, S.A.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0004-06142010000600001</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Situación actual de la RTU de próstata en pacientes con PSA elevado]]></article-title>
<article-title xml:lang="en"><![CDATA[Role and current situation of TURP in patients with elevated PSA]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[van Renterghem]]></surname>
<given-names><![CDATA[Koenraad M.L.E.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[van Kerrebroeck]]></surname>
<given-names><![CDATA[Philip E.V.A.]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Van Koeveringe]]></surname>
<given-names><![CDATA[Gommert A.]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Virga Jesse Hospital Servicio de Urología ]]></institution>
<addr-line><![CDATA[Hasselt ]]></addr-line>
<country>Bélgica</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Academic Hospital Maastricht Servicio de Urología ]]></institution>
<addr-line><![CDATA[Maastricht ]]></addr-line>
<country>Holanda</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2010</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2010</year>
</pub-date>
<volume>63</volume>
<numero>6</numero>
<fpage>411</fpage>
<lpage>419</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_arttext&amp;pid=S0004-06142010000600001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_abstract&amp;pid=S0004-06142010000600001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_pdf&amp;pid=S0004-06142010000600001&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Objetivo: El objetivo de esta revisión fue evaluar el papel de la resección transuretral de próstata (RTUPj en pacientes con PSA elevado. Se analizaron los resultados tanto en pacientes sintomáticos como asintomáticos. Métodos: Se revisó la literatura actual (1987-2009) en relación con esta población específica de pacientes. Esta investigación se realizó mediante búsqueda en Medline. Resultados: Inicialmente, estrategias terapéuticas distintas a la RTUp suelen ser utilizadas en pacientes con PSA elevado y sin evidencia de CP (CP). Este trabajo discute el valor de la RTUp en pacientes con PSA elevado o incremento progresivo del PSA. En este contexto, la RTUPp se puede realizar con o sin biopsia prostática concomitante. Además, la RTUp se puede proponer a pacientes con y sin STUI. Conclusiones: En esta revisión, se evaluó el papel de la RTUp en pacientes con PSA elevado o incremento progresivo del PSA sin diagnóstico de CP. Creemos que la RTUp tiene un lugar en esta población de pacientes, incluso en aquellos que no presenten STUI. Esta estrategia está bien fundamentada después de una revisión extensa de la literatura disponible. En la mayoría de los casos, una RTUp se traducirá en una normalización del PSA, así como un beneficio sintomático. Además, este procedimiento permitirá una extensa evaluación histológica, que podría aportar un potencial diagnóstico incidental de CP.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Objectives: The aim of this review is to evaluate the place of transurethral resection of the prostate (TURP) in patients with elevated and/or rising prostate specific antigen (PSA). The role of TURP in these patients is assessed in symptomatic as well as in asymptomatic patients. Methods: Current literature (1987-2009) was reviewed with regard to this specific population. This research was performed using the Medline online search tools. Results: Initially, possible therapeutic strategies other than TURP could be used in patients with elevated and/ or rising PSA values and no sign of proven prostate cancer. Consequently, the value of TURP in patients with elevated and/or rising PSA and no proven prostate cancer is discussed. In this setting, TURP can be executed with or without concomitant prostate biopsies. Furthermore, TURP can be proposed to patients with and without lower urinary tract symptoms. Conclusions: In this review, we evaluated the role of TURP in patients with elevated and/or rising PSA values and no proven prostate cancer. We believe TURP has a place in this particular population even in patients without lower urinary tract symptoms. This strategy is well founded on solid ground after an extensive review of the available literature. In most cases, a TURP will result in a normalization of PSA as well as a symptomatic benefit. Additionally, this procedure will allow histological evaluation which might show a possible life threatening prostate cancer in some patients.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Cáncer de próstata]]></kwd>
<kwd lng="es"><![CDATA[Resección transuretral de próstata]]></kwd>
<kwd lng="es"><![CDATA[PSA]]></kwd>
<kwd lng="es"><![CDATA[Obstrucción del tracto urinario inferior]]></kwd>
<kwd lng="es"><![CDATA[Síntomas del tracto urinario inferior]]></kwd>
<kwd lng="es"><![CDATA[Biopsia de próstata]]></kwd>
<kwd lng="en"><![CDATA[Prostate cancer]]></kwd>
<kwd lng="en"><![CDATA[Transurethral resection of the prostate]]></kwd>
<kwd lng="en"><![CDATA[Prostate specific antigen]]></kwd>
<kwd lng="en"><![CDATA[Bladder outlet obstruction]]></kwd>
<kwd lng="en"><![CDATA[Lower urinary tract symptoms]]></kwd>
<kwd lng="en"><![CDATA[Prostate biopsy]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p><font face="Verdana" size="2"><b><a name="top"></a>ART&Iacute;CULO ESPECIAL</b></font></p>     <p>&nbsp;</p>     <p><font face="Verdana" size="4"><b>Situaci&oacute;n actual de la RTU de pr&oacute;stata en pacientes con PSA elevado</b></font></p>     <p><font face="Verdana" size="4"><b>Role and current situation of TURP in patients with elevated PSA</b></font></p>     <p>&nbsp;</p>     <p>&nbsp;</p>     <p><font face="Verdana" size="2"><b>Koenraad M.L.E. van Renterghem<sup>1</sup>, Philip E.V.A. van Kerrebroeck<sup>2</sup> y Gommert A. Van Koeveringe<sup>2</sup></b></font></p>     <p><font face="Verdana" size="2"><sup>1</sup>Servicio de Urolog&iacute;a Virga Jesse Hospital. Hasselt. B&eacute;lgica.    <br> <sup> 2</sup>Servicio de Urolog&iacute;a. Academic Hospital Maastricht. Holanda.</font></p>     <p><font face="Verdana" size="2"><a href="#back">Direcci&oacute;n para correspondencia</a></font></p>     ]]></body>
<body><![CDATA[<p>&nbsp;</p>     <p>&nbsp;</p> <hr size="1">     <p><font face="Verdana" size="2"><b>RESUMEN</b></font></p>     <p><font face="Verdana" size="2"><b>Objetivo:</b> El objetivo de esta revisi&oacute;n fue evaluar el papel de la resecci&oacute;n transuretral de pr&oacute;stata (RTUPj en pacientes con PSA elevado. Se analizaron los resultados tanto en pacientes sintom&aacute;ticos como asintom&aacute;ticos.    <br><b>M&eacute;todos:</b> Se revis&oacute; la literatura actual (1987-2009) en relaci&oacute;n con esta poblaci&oacute;n espec&iacute;fica de pacientes. Esta investigaci&oacute;n se realiz&oacute; mediante b&uacute;squeda en Medline.    <br><b>Resultados:</b> Inicialmente, estrategias terap&eacute;uticas distintas a la RTUp suelen ser utilizadas en pacientes con PSA elevado y sin evidencia de CP (CP). Este trabajo discute el valor de la RTUp en pacientes con PSA elevado o incremento progresivo del PSA. En este contexto, la RTUPp se puede realizar con o sin biopsia prost&aacute;tica concomitante. Adem&aacute;s, la RTUp se puede proponer a pacientes con y sin STUI.    <br><b>Conclusiones:</b> En esta revisi&oacute;n, se evalu&oacute; el papel de la RTUp en pacientes con PSA elevado o incremento progresivo del PSA sin diagn&oacute;stico de CP. Creemos que la RTUp tiene un lugar en esta poblaci&oacute;n de pacientes, incluso en aquellos que no presenten STUI. Esta estrategia est&aacute; bien fundamentada despu&eacute;s de una revisi&oacute;n extensa de la literatura disponible. En la mayor&iacute;a de los casos, una RTUp se traducir&aacute; en una normalizaci&oacute;n del PSA, as&iacute; como un beneficio sintom&aacute;tico. Adem&aacute;s, este procedimiento permitir&aacute; una extensa evaluaci&oacute;n histol&oacute;gica, que podr&iacute;a aportar un potencial diagn&oacute;stico incidental de CP.</font></p>     <p><font face="Verdana" size="2"><b>Palabras clave:</b> C&aacute;ncer de pr&oacute;stata. Resecci&oacute;n transuretral de pr&oacute;stata. PSA. Obstrucci&oacute;n del tracto urinario inferior. S&iacute;ntomas del tracto urinario inferior. Biopsia de pr&oacute;stata.</font></p> <hr size="1">     <p><font face="Verdana" size="2"><b>SUMMARY</b></font></p>     <p><font face="Verdana" size="2"><b>Objectives:</b> The aim of this review is to evaluate the place of transurethral resection of the prostate (TURP) in patients with elevated and/or rising prostate specific antigen (PSA). The role of TURP in these patients is assessed in symptomatic as well as in asymptomatic patients.    ]]></body>
<body><![CDATA[<br><b>Methods:</b> Current literature (1987-2009) was reviewed with regard to this specific population. This research was performed using the Medline online search tools.    <br><b>Results:</b> Initially, possible therapeutic strategies other than TURP could be used in patients with elevated and/ or rising PSA values and no sign of proven prostate cancer. Consequently, the value of TURP in patients with elevated and/or rising PSA and no proven prostate cancer is discussed. In this setting, TURP can be executed with or without concomitant prostate biopsies. Furthermore, TURP can be proposed to patients with and without lower urinary tract symptoms.    <br><b>Conclusions:</b> In this review, we evaluated the role of TURP in patients with elevated and/or rising PSA values and no proven prostate cancer. We believe TURP has a place in this particular population even in patients without lower urinary tract symptoms. This strategy is well founded on solid ground after an extensive review of the available literature. In most cases, a TURP will result in a normalization of PSA as well as a symptomatic benefit. Additionally, this procedure will allow histological evaluation which might show a possible life threatening prostate cancer in some patients.</font></p>     <p><font face="Verdana" size="2"><b>Key words:</b> Prostate cancer. Transurethral resection of the prostate. Prostate specific antigen. Bladder outlet obstruction. Lower urinary tract symptoms. Prostate biopsy.</font></p> <hr size="1">     <p>&nbsp;</p>     <p><font face="Verdana" size="2"><b>Lista de abreviaturas</b></font></p>     <p><font face="Verdana" size="2">BOO: Obstrucci&oacute;n Tracto Urinario Inferior    <br>HBP: Hiperplasia Benigna de la Pr&oacute;stata    <br>STUI: S&iacute;ntomas del Tracto Urinario Inferior    <br>PSA: Ant&iacute;geno Espec&iacute;fico de la Pr&oacute;stata    ]]></body>
<body><![CDATA[<br>RTUp: Resecci&oacute;n Transuretral de Pr&oacute;stata    <br>CP: CP</font></p>     <p>&nbsp;</p>     <p><font face="Verdana" size="2"><b>Introducci&oacute;n</b></font></p>     <p><font face="Verdana" size="2">Con la introducci&oacute;n del PSA, se dispuso de una valiosa herramienta en el estudio diagn&oacute;stico de los pacientes con patolog&iacute;a prost&eacute;tica (1). En la pr&aacute;ctica urol&oacute;gica, los pacientes con un PSA elevado y / o aumento del valor del PSA son una poblaci&oacute;n creciente. Aunque el PSA se clasifica como un marcador tumoral, no es c&aacute;ncer espec&iacute;fico (2,3). Esto explica el hallazgo de valores elevados de PSA en pacientes en los que no se ha encontrado CP. La incertidumbre es a&uacute;n mayor, si el PSA sigue aumentando y no se puede encontrar el tumor, (4-6). Hasta ahora, se han publicado muchos art&iacute;culos proponiendo c&oacute;mo tratar a estos pacientes. Algunos autores han sugerido tratar a los pacientes con antibi&oacute;ticos y / o aproximaciones diet&eacute;ticas, hasta ahora, sin un fundamento cient&iacute;fico s&oacute;lido (7-12). Otros han sugerido refinar el diagn&oacute;stico con derivados del PSA, como PSA libre / total, densidad de PSA, velocidad de PSA, BPSA, PSA ajustado seg&uacute;n la edad, o PSA complejo (13-24). Adem&aacute;s, se han realizado varios intentos para aumentar el rendimiento de la biopsia ampliando el n&uacute;mero de cilindros, cambiando zonas prost&aacute;ticas que podr&iacute;a ser biopsiadas o repitiendo la biopsia (25-31). Adem&aacute;s,se han desarrollado nuevas t&eacute;cnicas de imagen en un intento de aumentar el diagn&oacute;stico de CP. Las t&eacute;cnicas que ofrecen esta perspectiva, son la ecograf&iacute;a con contraste, la elastograf&iacute;a en tiempo real, la espectroscopia asociada a la resonancia magn&eacute;tica mejorada con contraste din&aacute;mico,el histoescaner, etc (32-38). Sin embargo, se necesitan m&aacute;s pruebas para confirmar la validez de estas nuevas t&eacute;cnicas. Por &uacute;ltimo, pero no menos importante, se han desarrollado los nuevos marcadores moleculares, como el PCA3 (39-40).</font></p>     <p><font face="Verdana" size="2">Sin embargo, persiste un n&uacute;mero importante de pacientes en los que no se ha encontrado ninguna explicaci&oacute;n para la elevaci&oacute;n y / o el aumento de los niveles de PSA. En los &uacute;ltimos a&ntilde;os, se han acumulado mas evidencias del papel beneficioso de la RTUp en esta poblaci&oacute;n de pacientes. En esta revisi&oacute;n, se evaluar&aacute; el papel de la RTUp y otras estrategias terap&eacute;uticas en esta poblaci&oacute;n de pacientes en particular.</font></p>     <p>&nbsp;</p>     <p><font face="Verdana" size="2"><b>Material y m&eacute;todos</b></font></p>     <p><font face="Verdana" size="2">Se revis&oacute; la literatura actual con respecto a esta poblaci&oacute;n espec&iacute;fica. Esta investigaci&oacute;n se realiz&oacute; utilizando las herramientas a disposici&oacute;n del p&uacute;blico mediante b&uacute;squeda en Medline. Se revis&oacute; la literatura desde 1987 hasta 2009. Se utilizaron los siguientes t&eacute;rminos de b&uacute;squeda: "RTUp diagn&oacute;stica", "PSA elevado"; "biopsia de pr&oacute;stata". Adem&aacute;s, se realiz&oacute; la b&uacute;squeda de referencias posteriores en los art&iacute;culos recuperados.</font></p>     <p>&nbsp;</p>     ]]></body>
<body><![CDATA[<p><font face="Verdana" size="2"><b>Resultados</b></font></p>     <p><font face="Verdana" size="2"><b><i>Posibles estrategias terap&eacute;uticas distintas de la RTUp para tratar a los pacientes con un elevado y / o aumento del valor del PSA y CP no probado.</i></b></font></p>     <p><font face="Verdana" size="2">Dado que es muy frecuente tratar mediante tratamiento m&eacute;dico a pacientes con hiperplasia benigna de la pr&oacute;stata (HBP), se han desarrollado numerosas mol&eacute;culas para el tratamiento espec&iacute;fico de esta poblaci&oacute;n de pacientes. Uno podr&iacute;a preguntarse si el tratamiento m&eacute;dico no ser&iacute;a una opci&oacute;n terap&eacute;utica para pacientes con PSA elevado y / o aumento del valor de PSA y el CP no probado. Durante a&ntilde;os, se han utilizado los &alpha;-antagonista adren&eacute;rgicos &alpha;-1. Estos medicamentos pueden ser muy eficaces para el tratamiento de los STUI. Desgraciadamente, no ejercen ning&uacute;n efecto sobre los valores del PSA (41). Por otro lado, se sabe que los inhibidores de la 5&alpha;reductasa (5ARI) como el finasteride y el dutasteride tienen efecto sobre los valores del PSA. En la mayor&iacute;a de los casos, la "regla de multiplicar por dos&quot; se propone para calcular el valor real de PSA en pacientes tratados con 5ARI. Sin embargo, Brawer demostr&oacute; que "la regla de multiplicar por dos&quot; no siempre es correcta (41). Pero en general se acepta esta regla como &uacute;til y pr&aacute;ctica. Por otra parte, debe tenerse en cuenta que un valor elevado de PSA no puede ser la &uacute;nica indicaci&oacute;n para iniciar tratamiento con un 5ARI. Esto no cambia el hecho de que el valor de PSA este elevado, cualquiera que sea la t&eacute;cnica utilizada para evaluar el "verdadero" valor de PSA (42-47). Muchos ur&oacute;logos tratan de dar a estos pacientes un tratamiento emp&iacute;rico con antibi&oacute;ticos. Sin embargo, en la literatura no hay pruebas de que este tratamiento normalice el valor de PSA. Por otra parte, hasta el momento no se ha demostrado que la inflamaci&oacute;n cr&oacute;nica de la pr&oacute;stata pueda influir en los valores de PSA (12, 48-51). Hasta hace poco se cre&iacute;a que la manipulaci&oacute;n de la dieta era una estrategia eficaz en esta poblaci&oacute;n de pacientes. Hasta este momento, falta evidencia cient&iacute;fica para apoyar esta hip&oacute;tesis. Hasta la fecha, es absolutamente prematuro, abogar por la manipulaci&oacute;n de la dieta para normalizar los valores de PSA o incluso para reducir el riesgo de CP (7-11).</font></p>     <p><font face="Verdana" size="2"><b>Valor de la RTUp de pr&oacute;stata en pacientes con PSA elevado y / o aumento de los valores del PSA</b></font></p>     <p><font face="Verdana" size="2"><b><i>El valor de la RTUp con biopsia de pr&oacute;stata concomitante en pacientes con PSA elevado y / o aumento de los valores del PSA.</i></b></font></p>     <p><font face="Verdana" size="2">En 1997, Ornstein describi&oacute; el impacto de la biopsia de pr&oacute;stata en la incidencia de CP en varones con STUI que se sometieron a una RTUp (52). En este an&aacute;lisis retrospectivo de 58 pacientes consecutivos, Ornstein mostr&oacute; que los CP relevantes pueden ser detectados en m&aacute;s del 15% de los pacientes sometidos a RTUp, por razones sintom&aacute;ticas. En esta poblaci&oacute;n, los pacientes no ten&iacute;an s&iacute;ntomas de CP y tuvieron una o m&aacute;s biopsias de pr&oacute;stata sistem&aacute;ticas negativas. Puppo evalu&oacute; el mismo procedimiento en 43 pacientes (53). Fue capaz de realizar una RTUp de pr&oacute;stata en 14 pacientes, en este grupo de 43. A estos pacientes se les ofreci&oacute; una RTUp y la obstrucci&oacute;n del tracto urinario inferior (BOO) no tuvo ninguna influencia en la decisi&oacute;n. En este peque&ntilde;o grupo de pacientes, Puppo concluy&oacute; que la RTUp combinada con biopsia transrectal de pr&oacute;stata en el mismo acto tiene un alto rendimiento diagn&oacute;stico.</font></p>     <p><font face="Verdana" size="2"><b><i>Resultado de la RTUp en pacientes con PSA elevado y / o aumento del PSA y STUI, sin signos de CP demostrado.</i></b></font></p>     <p><font face="Verdana" size="2">En pacientes con elevado y / o aumento del PSA con STUI, los valores del PSA se correlacionan con el crecimiento futuro de la pr&oacute;stata, mayor riesgo de retenci&oacute;n urinaria aguda, obstrucci&oacute;n del tracto urinario inferior, y una mayor necesidad de futuro tratamiento quir&uacute;rgico para aliviarlos STUI (54-59). Por otra parte, la RTUp es un tratamiento adecuado para aliviar STUI debido a obstrucci&oacute;n del tracto urinario inferior (60). Adem&aacute;s, la RTUp se traducir&aacute; en un beneficio sintom&aacute;tico y permitir&aacute; a un examen histol&oacute;gico extenso.</font></p>     <p><font face="Verdana" size="2">Aunque el n&uacute;mero de c&aacute;nceres de pr&oacute;stata detectados por RTUp se redujo despu&eacute;s de la introducci&oacute;n del PSA, se sabe que el CP puede ser detectado por RTUp en pacientes sin sospecha de CP. Merril mostr&oacute; que en la era del PSA los casos de c&aacute;nceres detectados por la RTUp representaban aproximadamente el 10% de todos los casos de CP detectados (61). Varios autores han tratado de mejorar el diagn&oacute;stico de CP en pacientes con biopsias prost&aacute;ticas negativas previas, mediante la realizaci&oacute;n de biopsia transuretral de la pr&oacute;stata. Sin embargo, sabiendo que la mayor&iacute;a de los CP se presentan en la zona perif&eacute;rica, una biopsia transuretral de la pr&oacute;stata no es una buena estrategia para diagnosticar CP en pacientes con biopsias de pr&oacute;stata previamente (62-64) negativas.</font></p>     <p><font face="Verdana" size="2">Kitamura fue el primero en describir los resultados de una RTUp en pacientes con biopsias previas negativas (65). En este an&aacute;lisis prospectivo, se incluyeron 139 pacientes consecutivos. Estos pacientes fueron sometidos a RTUp despu&eacute;s de biopsias negativas, cuando el tratamiento de los s&iacute;ntomas as&iacute; lo hizo necesario. Kitamura concluy&oacute; que no estaba claro si la RTUp es una buena opci&oacute;n para el diagnostico de c&aacute;ncer en esta poblaci&oacute;n de pacientes. Radhakrishnan present&oacute; sus resultados en un an&aacute;lisis retrospectivo de un peque&ntilde;o grupo de 14 pacientes (66). En este grupo, 3 pacientes ten&iacute;an un CP que potencialmente pon&iacute;a su vida en peligro y que fue detectada mediante RTUp. Radhakrishnan inform&oacute; que la RTUp se puede aplicar en esta poblaci&oacute;n de pacientes.</font></p>     ]]></body>
<body><![CDATA[<p><font face="Verdana" size="2">Zigeuner present&oacute; la tasa de detecci&oacute;n del CP mediante RTUp o adenomectom&iacute;a abierta en un gran estudio retrospectivo de pacientes (1189 pacientes consecutivos entre 1994 y 2000), que previamente hab&iacute;a tenido resultados negativos en biopsias trans-rectales de pr&oacute;stata (67). Todos los pacientes fueron tratados por obstrucci&oacute;n del tracto urinario inferior sintom&aacute;tica. Zigeuner encontr&oacute; una tasa global de CP del 7,9%. Si los pacientes ten&iacute;an un tacto rectal normal, la incidencia de CP era de 5,5%. Philip present&oacute; los resultados sobre la importancia de la RTUp en pacientes con antecedentes de m&uacute;ltiples biopsias negativas de pr&oacute;stata (68). En este documento, se muestra la importancia de una resecci&oacute;n anterior de la pr&oacute;stata con respecto al diagn&oacute;stico de CP.</font></p>     <p><font face="Verdana" size="2"><b><i>La importancia de la RTUp de pr&oacute;stata en pacientes con elevado y / o PSA en aumento, sin signos de CP demostrado y  sin STUI.</i></b></font></p>     <p><font face="Verdana" size="2">La incertidumbre aumenta cuando un paciente presenta un PSA elevado y / o PSA en aumento sin datos de CP en el tacto rectal, ecograf&iacute;a transrectal y (m&uacute;ltiples) biopsias de pr&oacute;stata y sin STUI. En esta poblaci&oacute;n en particular, se puede esperar que se produzca obstrucci&oacute;n del tracto urinario inferior (69). Dado que una obstrucci&oacute;n del tracto urinario inferior no tratada puede llevar a situaciones graves como la hipertrof&iacute;a del detrusor y a insuficiencia renal, puede ser un buen motivo para plantear una RTUp (70-71). En esta poblaci&oacute;n, realizando una RTUp se producir&aacute; un beneficio sintom&aacute;tico, una normalizaci&oacute;n del valor del PSA y adem&aacute;s este procedimiento permite un amplio examen histol&oacute;gico. En la mayor&iacute;a de los casos, este examen histol&oacute;gico muestra que no hay CP, aunque se encuentra CP en algunos pacientes. En un an&aacute;lisis retrospectivo, se encontr&oacute; CP en el 9,8% de los pacientes que, en la mayor&iacute;a de los casos, necesitaban un tratamiento adicional (72-73). Sorprendentemente, cuando se realiz&oacute; una prostatectom&iacute;a radical, se encontro casi siempre CP residual localizado en la zona perif&eacute;rica (anterior y lateral) de la pr&oacute;stata. En un an&aacute;lisis prospectivo, nos encontramos con "HBP pura" en el 81,8% de los casos. En el 12,1% de los pacientes, se encontr&oacute; un CP insignificante, mientras que el CP agresivo que requiri&oacute; tratamiento adicional fu&eacute; hallado en el 6,1% de los pacientes (74). Una vez m&aacute;s, el tumor residual se encontr&oacute; en la zona perif&eacute;rica anterior y lateral de la pr&oacute;stata.</font></p>     <p><font face="Verdana" size="2">En esta poblaci&oacute;n de este estudio espec&iacute;fico, se mostr&oacute; que los resultados a largo plazo de este procedimiento fueron excelentes. Sin embargo, se recomienda un control anual de PSA, ya que en el 2,8% de estos pacientes hubo recidiva bioqu&iacute;mica despu&eacute;s de varios a&ntilde;os, lo que requiri&oacute; tratamiento adicional. Como propuesta para incluir en un nuevo algoritmo, hemos sugerido un papel clave para el estudio urodin&aacute;mico en el seguimiento de esta poblaci&oacute;n de pacientes ya que es de esperar que se produzca a medio plazo obstrucci&oacute;n del tracto urinario inferior (75).</font></p>     <p>&nbsp;</p>     <p><font face="Verdana" size="2"><b>Discusi&oacute;n</b></font></p>     <p><font face="Verdana" size="2">Nuestra sociedad occidental se caracteriza por un envejecimiento de la poblaci&oacute;n cada vez mayor debido a la mejor&iacute;a de la salud en general que lleva a una esperanza de vida cada vez mayor. Esto significa que la HBP y el CP son m&aacute;s frecuentes, ya que son enfermedades del var&oacute;n que envejece. M&aacute;s y m&aacute;s hombres alcazanzaran la edad suficiente para tener una "enfermedad" prost&aacute;tica. Adem&aacute;s, los hombres son cada vez m&aacute;s conscientes de las enfermedades de la pr&oacute;stata y son conscientes de la existencia del PSA. Por otra parte, el potencial efecto letal del CP es bien conocido y nos lleva a la aparici&oacute;n de nuevas "enfermedades", tales como "la ansiedad del PSA" (6).</font></p>     <p><font face="Verdana" size="2">Por esta raz&oacute;n, los hombres con PSA elevado y / o aumento de los niveles de PSA consultan con un ur&oacute;logo. Cuando la elevaci&oacute;n del PSA se correlaciona con un examen digital rectal sospechoso, una ecograf&iacute;a transrectal sospechosa y amplias biopsias de pr&oacute;stata positivas, en la mayor&iacute;a de los casos se sabe cual es el paso siguiente Sin embargo, cuando el PSA es elevado y sigue aumentando en pacientes con "m&uacute;ltiples" biopsias prost&aacute;ticas negativas, incluso en las biopsias de pr&oacute;stata por saturaci&oacute;n, la incertidumbre aumenta, no s&oacute;lo para el paciente y el m&eacute;dico de atenci&oacute;n primaria, sino tambi&eacute;n para el ur&oacute;logo. Como sabemos, la repetici&oacute;n de biopsias por saturaci&oacute;n no es una opci&oacute;n adecuada en estos pacientes ya que la posibilidad de encontrar CP con relevancia cl&iacute;nica se reduce con cada nueva biopsia de pr&oacute;stata realizada (30-31). El tratamiento con antibi&oacute;ticos, la manipulaci&oacute;n diet&eacute;tica, los 5ARI y &alpha;-bloqueantes no son una buena soluci&oacute;n en esta poblaci&oacute;n (7-11, 41-51).</font></p>     <p><font face="Verdana" size="2">Si los pacientes estan sintom&aacute;ticos, podr&iacute;a estar indicada una RTUp, incluso sin realizar una evaluaci&oacute;n urodin&aacute;mica previa. Creemos que una serie de biopsias de pr&oacute;stata amplias es suficiente en esta poblaci&oacute;n (70). En este grupo, la RTUp puede ser considerada no s&oacute;lo como un procedimiento terap&eacute;utico, sino tambi&eacute;n como un procedimiento de diagn&oacute;stico ya que el CP se encuentra en gran cantidad de pacientes. Creemos que la RTUp concomitante con la biopsia tiene un rendimiento relativamente pobre para diagnosticar c&aacute;ncer, aunque se necesitan m&aacute;s investigaciones con biopsias que incluyan un mayor n&uacute;mero de cilindros (¿21 cilindros?) (52-53).</font></p>     <p><font face="Verdana" size="2">El grupo m&aacute;s dif&iacute;cil son los pacientes sin "STUI molestos". En esta poblaci&oacute;n, se debe realizar un estudio urodin&aacute;mico despu&eacute;s de al menos 2 biopsias de pr&oacute;stata por saturaci&oacute;n (75). Una evaluaci&oacute;n urodin&aacute;mica en este grupo de pacientes puede demostrar obstrucci&oacute;n del tracto urinario inferior en casi todos los casos para los que se puede proponer una RTUp (69, 72-75). Esta exploraci&oacute;n urodin&aacute;mica tiene un gran valor predictivo en el resultado de una RTUp en pacientes con obstrucci&oacute;n del tracto urinario inferior (76-79). La RTUp se traducir&aacute; en el tratamiento de la obstrucci&oacute;n del tracto urinario inferior, la supernormalizaci&oacute;n del PSA, el beneficio sintom&aacute;tico y examen histol&oacute;gico extenso. Si se encuentra un CP insignificante, se puede proponer al paciente una estrategia de vigilancia activa. Sin embargo, si se encuentra CP agresivo y potencialmente mortal, es la cirug&iacute;a radical la que debe ser propuesta a estos pacientes. Colombo et al. demostraron que en manos muy expertas, se puede realizar una prostatectom&iacute;a radical con buenos resultados despu&eacute;s de una RTUp previa (80).</font></p>     ]]></body>
<body><![CDATA[<p><font face="Verdana" size="2">En conclusi&oacute;n, hay varios argumentos a favor de proponer una RTUp a estos pacientes. En primer lugar, las obstrucciones del tracto urinario inferior, sintom&aacute;ticas o no, deben ser tratadas. La obstrucci&oacute;n del tracto urinario inferior no tratada puede llevar a situaciones graves como la descompensaci&oacute;n del detrusor y la insuficiencia renal (70-71).</font></p>     <p><font face="Verdana" size="2">Adem&aacute;s, el nivel de PSA postoperatorio se reducir&aacute; en la mayor&iacute;a de los casos de manera significativa. Por otra parte, es posible un amplio examen histol&oacute;gico. Si solo se encuentra HBP, los pacientes pueden estar tranquilos. Si se encuentra CP agresivo y potencialmente mortal, se debe proponer cirug&iacute;a radical a los pacientes para tratar un tumor que de otro modo se diagnosticar&iacute;a en una etapa posterior y menos curable. Si, por otra parte, se encuentra un CP insignificante, se debe tratar con el paciente una estrategia de estrecha vigilancia. Dado que los niveles de PSA se relacionan con la obstrucci&oacute;n del tracto urinario inferior, podemos concluir que el nivel elevado de PSA no s&oacute;lo est&aacute; relacionado con la presencia de CP, sino tambi&eacute;n con la obstrucci&oacute;n del tracto urinario inferior.</font></p>     <p><font face="Verdana" size="2">Hoy en d&iacute;a se puede considerar que es un riesgo no el sobrediagn&oacute;stico sino el sobretratamiento, los pacientes se pueden beneficiar de una eventual cirug&iacute;a radical. Esto implica que, en este grupo, las t&eacute;cnicas de vaporizaci&oacute;n de la pr&oacute;stata con l&aacute;ser no deben ser defendidas. Por &uacute;ltimo y no menos importante, tamb&iacute;en deben tenerse en cuenta los argumentos econ&oacute;micos. Se sabe que el tratamiento m&eacute;dico para una enfermedad progresiva, de larga duraci&oacute;n en una poblaci&oacute;n que envejece es mucho m&aacute;s costoso y no proporciona la curaci&oacute;n de la enfermedad (81-84). Adem&aacute;s, no hay ning&uacute;n efecto real en el nivel de PSA en la mayor&iacute;a de los casos y no hay posibilidad de un examen histol&oacute;gico para excluir un CP. Por lo tanto, se debe ofrecer a los pacientes una RTUp. Es un tratamiento con excelentes y probados resultados a largo plazo. Adem&aacute;s, debido a la mejora de las t&eacute;cnicas quir&uacute;rgicas, la RTUp no debe ser considerada como un procedimiento "invasivo" (85-89).</font></p>     <p>&nbsp;</p>     <p><font face="Verdana" size="2"><b>Conclusi&oacute;n</b></font></p>     <p><font face="Verdana" size="2">Los pacientes con PSA elevado y / aumento de los niveles de PSA y sin signos de CP en el tacto rectal, ecograf&iacute;a transrectal o despu&eacute;s de m&uacute;ltiples biopsias de pr&oacute;stata, constituyen una poblaci&oacute;n importante en la pr&aacute;ctica urol&oacute;gica. Si los pacientes presentan STUI, se puede proponer la realizaci&oacute;n de una RTUp, ya que ello resultar&aacute; un beneficio sintom&aacute;tico, normalizaci&oacute;n de los niveles de PSA y la posibilidad de un examen histol&oacute;gico m&aacute;s extenso. Sin embargo, si los pacientes no tienen STUI, se debe realizar un estudio urodin&aacute;mico despu&eacute;s de al menos dos biopsias prost&aacute;ticas por saturaci&oacute;n. Es posible encontrar datos de obstrucci&oacute;n del tracto urinario inferior en estudios de presi&oacute;n-flujo. Esta obstrucci&oacute;n del tracto urinario inferior puede ser tratada mediante RTUp, ya que la obstrucci&oacute;n sin tratar puede tener riesgos potenciales. Incluso en esta poblaci&oacute;n se ver&aacute; un beneficio sintom&aacute;tico, supernormalizaci&oacute;n del PSA y tendremos la posibilidad de un examen histol&oacute;gico m&aacute;s extenso.</font></p>     <p><font face="Verdana" size="2">Por esta raz&oacute;n, la RTUp no s&oacute;lo debe considerarse como un procedimiento terap&eacute;utico, sino tambi&eacute;n como un procedimiento diagn&oacute;stico. En la mayor&iacute;a de los casos s&oacute;lo se encuentra HBP, en un n&uacute;mero de casos un CP insignificante, y en otros un agresivo y amenazante CP.</font></p>     <p>&nbsp;</p>     <p><font face="Verdana" size="2"><b>Agradecimientos</b></font></p>     <p><font face="Verdana" size="2">Los autores agradecen al Dr. S. Deferme (Pharma XL, B&eacute;lgica) por su ayuda en la escritura y la publicaci&oacute;n de este manuscrito.</font></p>     ]]></body>
<body><![CDATA[<p>&nbsp;</p>     <p><font face="Verdana" size="2"><b>Bibliograf&iacute;a y lecturas recomendadas (*lectura de inter&eacute;s y **lectura fundamental)</b></font></p>     <!-- ref --><p><font face="Verdana" size="2">1. Stamey T, Yang N, Hay A, McNeal J, Freiha F, Redwine E. Prostate-specific antigen as a serum marker for adenocarcinoma of the prostate. N Engl J Med. 1987;317:909-16.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=1167273&pid=S0004-0614201000060000100001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font face="Verdana" size="2">2. Laguna P, Alivizatos G. Prostate specific antigen and benign prostatic hyperplasia. Curr Opin Urol. 2000;10:3-8.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=1167274&pid=S0004-0614201000060000100002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font face="Verdana" size="2">3. Stephan C, Jung K, Lein M, Diamandis E. PSA and other tissue kallikreins for prostate cancer detection. Eur J Cancer. 2007;43:1918-1926.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=1167275&pid=S0004-0614201000060000100003&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font face="Verdana" size="2">4. Katz D, Jarrard D, McHorney C, Hillis S, Wiebe D, Fryback D. Health perceptions in patients who undergo screening and workup for prostate cancer. Urology 2007;69:215-220.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=1167276&pid=S0004-0614201000060000100004&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font face="Verdana" size="2">5. Roth A, Christian N, Rosenfeld B, Warshowski A, O'Shea N, Scher H, et al. Assessing anxiety in men with prostate cancer: further data on the reliability and validity of the Memorial Anxiety Scale for Prostate Cancer (MAX-PC). Psychosomatics 2006;47:340-347.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=1167277&pid=S0004-0614201000060000100005&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font face="Verdana" size="2">6. Lofters A, Juffs H, Pond G, Tannock I. "PSA-it is": knowledge of serum prostate specific antigen and other causes of anxiety in men with metastatic prostate cancer. J Urol. 2002;168:2516-2520.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=1167278&pid=S0004-0614201000060000100006&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font face="Verdana" size="2">7. 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Cancer Epidemiol Biomarkers Prev. 2006;15:92-98.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=1167280&pid=S0004-0614201000060000100008&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font face="Verdana" size="2">9. Demark-Wahnefried W, Moyad M. Dietary intervention in the management of prostate cancer. Curr Opin Urol. 2007;17:168-170.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=1167281&pid=S0004-0614201000060000100009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font face="Verdana" size="2">10. Jatoi A, Burch P, Hillman D, Vanyo J, Dakhil S, Nikcevich D, et al. A tomato-based, lycopene-containing intervention for androgen-independent prostate cancer: results of a phase II study from the North Central Cancer Treatment Group. Urology. 2007;36:289-294.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=1167282&pid=S0004-0614201000060000100010&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font face="Verdana" size="2">11. Eastham J, Riedel E, Latkany L, Fleisher M, Schatzkin A, Lanza E, et al. Dietary manipulation, ethnicity and serum PSA levels. Urology. 2003;62:677-685.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=1167283&pid=S0004-0614201000060000100011&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font face="Verdana" size="2">12. Kobayashi M, Nudui A, Morita T. Serum PSA and percent free PSA value changes after antibiotic treatment. A diagnostic method in prostate cancer suspects with asymptomatic protatitis. Urol Int. 2008;80:186-192.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=1167284&pid=S0004-0614201000060000100012&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font face="Verdana" size="2">13. 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J Urol. 1992;147:817-821.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=1167286&pid=S0004-0614201000060000100014&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font face="Verdana" size="2">15. Catalona W, Southwick P, Slawin K, Partin A, Brawer M, Flanigan R, et al. Comparison of percent free PSA, PSA density, and age-specific PSA cut-offs for prostate cancer detection and staging. Urology. 2000;56:255-260.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=1167287&pid=S0004-0614201000060000100015&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font face="Verdana" size="2">16. 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J Urol. 2008;180:246-249.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=1167360&pid=S0004-0614201000060000100088&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font face="Verdana" size="2">89. Rassweiler J, Teber D, Kuntz R, Hofmann R. Complications of transurethral resection of the prostate (TURP) - Incidence, management and prevention. Eur Urol. 2006;50:969-980.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=1167361&pid=S0004-0614201000060000100089&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><p>&nbsp;</p>     <p>&nbsp;</p>     <p><font face="Verdana" size="2"><b><a name="back"></a><a href="#top"><img src="/img/revistas/urol/v63n6/seta.jpg" border="0"></a>Direcci&oacute;n para correspondencia:    <br></b> K. van Renterghem, PhD, MD    <br>Department of Urology    <br>Stadsomvaart 11    <br> 3500 Hasselt (B&eacute;lgica).    <br><a href="mailto:koenraad.van.renterghem@ageingmaleclinic.be">koenraad.van.renterghem@ageingmaleclinic.be</a></font></p>     <p><font face="Verdana" size="2">Aceptado para publicar: 25 de octubre 2009.</font></p>     ]]></body>
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