<?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>0716-1018</journal-id>
<journal-title><![CDATA[Revista chilena de infectología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. chil. infectol.]]></abbrev-journal-title>
<issn>0716-1018</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Chilena de Infectología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0716-10182012000500009</article-id>
<article-id pub-id-type="doi">10.4067/S0716-10182012000500009</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Profilaxis de tuberculosis en niños y adultos sometidos a trasplante de órganos sólidos y precursores hematopoyéticos]]></article-title>
<article-title xml:lang="en"><![CDATA[Prophylaxis against tuberculosis in pediatric and adult patients undergoing solid organ and hematopoietic stem cells transplantation]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lafourcade]]></surname>
<given-names><![CDATA[Mónica]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Clínica Santa María Laboratorio de Microbiología ]]></institution>
<addr-line><![CDATA[Santiago ]]></addr-line>
<country>Chile</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2012</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2012</year>
</pub-date>
<volume>29</volume>
<fpage>45</fpage>
<lpage>47</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.cl/scielo.php?script=sci_arttext&amp;pid=S0716-10182012000500009&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=S0716-10182012000500009&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=S0716-10182012000500009&amp;lng=en&amp;nrm=iso&amp;tlng=en"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Recipients of SOT and HSCT constitute a risk group for becoming ill with tuberculosis (TB). The prevalence of active TB in patients undergoing TOS is higher than in patients undergoing HSCT, probably for the shortest period of immunosuppression of the latter. Most TB cases occur in transplant patients by reactivation of latent infection after immunosuppression, which occurs most often within the first year post-transplant, causing graft loss and in some cases death. Relevant variables to assess the risk of TB infection in a transplant recipient are the medical history of donor and recipient, images, microbiology and tuberculin tests and interferon gamma levels. PPD is routinely performed in the donor and in the recipient before transplantation. If PPD is > 5 mm in the recipient or > 10 mm in the donor, it is neccesary to exclude active TB (pulmonary and renal) (A2). It is recommended che-moprophylaxis in recipients PPD (+) and in recipients with recent seroconversion (B3), if the donor has a history of untreated TB, there was contact to someone with active TB (B3), the radiological imeges are suspect (A2) and interferon gamma release assays is (+) (B2). The selected drug is isoniazid (C3).]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Los pacientes receptores de trasplante constituyen un grupo de riesgo para enfermar de tuberculosis (TBC). La prevalencia de TBC activa en pacientes sometidos a TOS es mayor que en TPH, probablemente por el menor tiempo de inmunosupresión. La mayoría de los casos de TBC en pacientes trasplantados ocurren por reactivación de infección latente luego de la inmunosupresión, la que se produce con más frecuencia dentro del primer año posttrasplante, causando pérdida del injerto y en algunos casos la muerte. Para evaluar el riesgo de infección tuberculosa de un receptor son relevantes elementos tales como el historial médico del donante y receptor, las imágenes, el estudio microbiológico y pruebas como la tuberculina y ensayos que miden interferón gamma. De rutina se realiza PPD en el donante y el receptor previo al trasplante. Si el PPD es &#8805; de 5 mm en el receptor o &#8805; de 10 mm en el donante, se debe descartar una TBC activa (pulmonar y renal) (A2). Se recomienda efectuar quimioproilaxis en el receptor PPD (+) y seroconversión reciente (B3), si el donante tiene el antecedente de TBC no tratada, existió contacto con persona con TBC activa (B3), las imágenes radiológicas son sospechosas (A2) e IGRAs (+) (B2). El medicamento de elección para la proilaxis es isoniacida (C3).]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Tuberculosis]]></kwd>
<kwd lng="en"><![CDATA[prophylaxis]]></kwd>
<kwd lng="en"><![CDATA[transplant]]></kwd>
<kwd lng="en"><![CDATA[solid organ transplantation]]></kwd>
<kwd lng="en"><![CDATA[hematopoietic stem cells transplantation]]></kwd>
<kwd lng="es"><![CDATA[Tuberculosis]]></kwd>
<kwd lng="es"><![CDATA[profilaxis]]></kwd>
<kwd lng="es"><![CDATA[trasplante]]></kwd>
<kwd lng="es"><![CDATA[trasplante de órganos sólidos]]></kwd>
<kwd lng="es"><![CDATA[trasplante de precursores hematopoyéticos]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[  	    <p align="justify"><font size="2" face="Verdana">Rev Chilena Infectol 2012; 29 (Supl 1): 45&#45;47</font></p> 	    <p align="right"><font size="2" face="Verdana"><strong>SUPLEMENTO</strong></font></p> 	    <p align="justify">&nbsp;</p>     <p align="justify"><font size="4" face="Verdana"><strong>Profilaxis de tuberculosis en ni&ntilde;os y adultos sometidos a trasplante de &oacute;rganos s&oacute;lidos y precursores hematopoy&eacute;ticos</strong></font></p>     <p align="justify"><font size="3" face="Verdana"><strong>Prophylaxis against tuberculosis in pediatric and adult patients undergoing solid organ and hematopoietic stem cells transplantation</strong></font></p>     <p align="justify">&nbsp;</p>     <p align="justify"><font size="2" face="Verdana"><strong><i>M&oacute;nica Lafourcade</i></strong></font></p>     <p align="justify"><font size="2" face="Verdana">Laboratorio de Microbiolog&iacute;a Cl&iacute;nica Santa Mar&iacute;a, Santiago.</font></p>     <p align="justify"><a name="top"></a><a href="#back"><font size="2" face="Verdana">Correspondencia a: </font></a></p>     ]]></body>
<body><![CDATA[<p align="justify">    <hr size="1">     <p align="justify"><font size="2" face="Verdana">Recipients of SOT and HSCT constitute a risk group for becoming ill with tuberculosis (TB). The prevalence of active TB in patients undergoing TOS is higher than in patients undergoing HSCT, probably for the shortest period of immunosuppression of the latter. Most TB cases occur in transplant patients by reactivation of latent infection after immunosuppression, which occurs most often within the first year post&#45;transplant, causing graft loss and in some cases death. Relevant variables to assess the risk of TB infection in a transplant recipient are the medical history of donor and recipient, images, microbiology and tuberculin tests and interferon gamma levels. PPD is routinely performed in the donor and in the recipient before transplantation. If PPD is &gt; 5 mm in the recipient or &gt; 10 mm in the donor, it is neccesary to exclude active TB (pulmonary and renal) (A2). It is recommended che&#45;moprophylaxis in recipients PPD (+) and in recipients with recent seroconversion (B3), if the donor has a history of untreated TB, there was contact to someone with active TB (B3), the radiological imeges are suspect (A2) and interferon gamma release assays is (+) (B2). The selected drug is isoniazid (C3).</font></p>  	    <p align="justify"><font size="2" face="Verdana"><b>Key words:</b> Tuberculosis, prophylaxis, transplant, solid organ transplantation, hematopoietic stem cells transplantation.</font></p>     <p align="justify">    <hr size="1"> 	    <p align="justify"><font size="2" face="Verdana"><b>Resumen</b></font></p> 	    <p align="justify"><font size="2" face="Verdana">Los pacientes receptores de trasplante constituyen un grupo de riesgo para enfermar de tuberculosis (TBC). La prevalencia de TBC activa en pacientes sometidos a TOS es mayor que en TPH, probablemente por el menor tiempo de inmunosupresi&oacute;n. La mayor&iacute;a de los casos de TBC en pacientes trasplantados ocurren por reactivaci&oacute;n de infecci&oacute;n latente luego de la inmunosupresi&oacute;n, la que se produce con m&aacute;s frecuencia dentro del primer a&ntilde;o posttrasplante, causando p&eacute;rdida del injerto y en algunos casos la muerte. Para evaluar el riesgo de infecci&oacute;n tuberculosa de un receptor son relevantes elementos tales como el historial m&eacute;dico del donante y receptor, las im&aacute;genes, el estudio microbiol&oacute;gico y pruebas como la tuberculina y ensayos que miden interfer&oacute;n gamma. De rutina se realiza PPD en el donante y el receptor previo al trasplante. Si el PPD es &#8805; de 5 mm en el receptor o &#8805; de 10 mm en el donante, se debe descartar una TBC activa (pulmonar y renal) (A2). Se recomienda efectuar quimioproilaxis en el receptor PPD (+) y seroconversi&oacute;n reciente (B3), si el donante tiene el antecedente de TBC no tratada, existi&oacute; contacto con persona con TBC activa (B3), las im&aacute;genes radiol&oacute;gicas son sospechosas (A2) e IGRAs (+) (B2). El medicamento de elecci&oacute;n para la proilaxis es isoniacida (C3).</font></p> 	    <p align="justify"><font size="2" face="Verdana"><b>Palabras clave:</b> Tuberculosis, profilaxis, trasplante, trasplante de &oacute;rganos s&oacute;lidos, trasplante de precursores hematopoy&eacute;ticos.</font></p> 	    <p align="justify">    <hr size="1">     <p align="justify"><font size="3" face="Verdana"><b>Introducci&oacute;n</b> </font>     <p align="justify"><font size="2" face="Verdana">Los pacientes receptores de trasplantes constituyen un grupo de riesgo para enfermar de tuberculosis (TBC) y enfrentan grandes dilemas diagn&oacute;sticos y terap&eacute;uticos; su presentaci&oacute;n cl&iacute;nica es at&iacute;pica y la sensibilidad de las t&eacute;cnicas de diagn&oacute;stico disponibles es baja. Por otro lado, los f&aacute;rmacos anti TBC poseen alta toxicidad e interacciones con los antineopl&aacute;sicos, lo que dificulta el manejo de esta enfermedad.</font></p>  	    ]]></body>
<body><![CDATA[<p align="justify"><font size="2" face="Verdana">La mayor&iacute;a de los casos de TBC en pacientes sometidos a trasplantes ocurren por reactivaci&oacute;n de una infecci&oacute;n latente luego de la inmunosupresi&oacute;n. Existen casos documentados de infecci&oacute;n a trav&eacute;s del injerto<sup>1</sup> y adquisici&oacute;n nosocomial<sup>2</sup> pero son excepcionales.</font></p>  	    <p align="justify"><font size="2" face="Verdana">La enfermedad, en t&eacute;rminos generales, se produce con m&aacute;s frecuencia dentro del primer a&ntilde;o post&#45;trasplante, causando p&eacute;rdida del injerto y en algunos casos la muerte. En trasplante de &oacute;rganos s&oacute;lidos (TOS), dos tercios de los casos de TBC activa se presentan en el primer a&ntilde;o posttrasplante y es com&uacute;n su manifestaci&oacute;n extra pulmonar y diseminada (30&#45;50% de los casos)<sup>3</sup>.</font></p>  	    <p align="justify"><font size="3" face="Verdana"><b>Epidemiolog&iacute;a</b></font></p>  	    <p align="justify"><font size="2" face="Verdana">En las &uacute;ltimas d&eacute;cadas, los programas de prevenci&oacute;n de TBC en pa&iacute;ses desarrollados han logrado disminuir su incidencia; no obstante, los pa&iacute;ses en v&iacute;as de desarrollo aun mantienen cifras elevadas<sup>4</sup>. En Chile, la tasa de incidencia de TBC en la poblaci&oacute;n general ha descendido dr&aacute;sticamente en los &uacute;ltimos a&ntilde;os, desde 77 /100.000 habitantes en el a&ntilde;o 1980 a 14/100.000 habitantes en el 2008, con diferencias regionales importantes, siendo la m&aacute;s elevada en la Regi&oacute;n de  rica&#45;Parinacota con 35/100.000<sup>5</sup>. A los factores de riesgo cl&aacute;sicamente descritos para infecci&oacute;n por <i>Mycobacterium tuberculosis,</i> se han sumado la coinfecci&oacute;n por virus de inmunodeficiencia humana (VIH) y el trasplante. Se estima que la prevalencia de TBC activa en pacientes sometidos a TOS en la mayor&iacute;a de los pa&iacute;ses desarrollados es de 1,2 a 6,4%, mientras que en zonas de alta endemia, &eacute;sta puede llegar hasta 15%<sup>6</sup>. La incidencia var&iacute;a seg&uacute;n el &oacute;rgano trasplantado, siendo m&aacute;s alta en trasplante pulmonar comparado con otros &oacute;rganos<sup>5</sup>. En trasplante de precursores hematopoy&eacute;ticos (TPH), &eacute;sta es menor que en TOS, probablemente debido al menor tiempo de inmunosupresi&oacute;n al que son sometidos los pacientes. En estudios norteamericanos, la cifras fluct&uacute;an entre 0,6 y 1%; sin embargo, en pa&iacute;ses donde la endemia es mayor, la incidencia es m&aacute;s elevada: 1,6% en Espa&ntilde;a, 5% en Hong Kong y Taiw&aacute;n<sup>7</sup>.</font></p> 	    <p align="justify"><font size="3" face="Verdana"><b>Factores de riesgo</b></font></p>  	    <p align="justify"><font size="2" face="Verdana"><i>Trasplante de &oacute;rganos s&oacute;lidos.</i> Se han definido pocos factores de riesgo con claridad para el desarrollo de TBC en estos pacientes. La principal dificultad para obtener datos precisos est&aacute; dada por la calidad de los estudios donde la mayor&iacute;a son retrospectivos y series de casos. Adem&aacute;s, la informaci&oacute;n disponible se reiere fundamentalmente a trasplante renal y por tanto, no es necesariamente aplicable a los receptores de otros trasplantes<sup>8&#45;10</sup>.</font></p>  	    <p align="justify"><font size="2" face="Verdana">Dentro de los factores de riesgo descritos para el desarrollo de TBC est&aacute;n la terapia con OKT3 o anticuerpos anti&#45;linfocitarios<sup>6</sup>, diabetes mellitus, enfermedad hep&aacute;tica cr&oacute;nica, co&#45;infecciones (CMV, micosis profunda, neumon&iacute;a por <i>Pneumocystis jiroveci</i> y <i>Nocardia</i> sp)<sup>11</sup>, edad avanzada y el uso de ciclosporina. Otros factores de riesgo tienen que ver con antecedentes de exposici&oacute;n a TBC, PPD positivo (&#8805; a 5 mm) o im&aacute;genes pulmonares compatibles<sup>10</sup>.</font></p>  	    <p align="justify"><font size="2" face="Verdana"><i>Trasplante de precursores hematopoy&eacute;ticos.</i> En este grupo los factores de riesgo descritos son EICH cr&oacute;nica, trasplante alog&eacute;nico e irradiaci&oacute;n corporal total<sup>12</sup>.</font></p>  	    <p align="justify"><font size="3" face="Verdana"><b>Evaluaci&oacute;n de candidatos a trasplante</b></font></p>  	    <p align="justify"><font size="2" face="Verdana">Para evaluar el riesgo de infecci&oacute;n tuberculosa de un receptor, se debe recolectar exhaustivamente su historial m&eacute;dico, incluyendo actividad laboral, viajes, antecedente de contacto previo con <i>M. tuberculosis,</i> si existi&oacute; tratamiento anti&#45;tuberculoso y duraci&oacute;n de &eacute;ste.</font></p>  	    ]]></body>
<body><![CDATA[<p align="justify"><font size="2" face="Verdana">La utilidad de la prueba de tuberculina en la evaluaci&oacute;n de un candidato a trasplante es controversial. Esta puede estar falsamente negativa en 50 a 80% de ellos por el estado de anergia en que se encuentran y tambi&eacute;n puede haber falsos positivos por interferencia con la vacunaci&oacute;n con BCG (Bacillus Calmette Guerin); sin embargo, el efecto absoluto de &eacute;sta se pierde si la vacunaci&oacute;n se realiz&oacute; hace m&aacute;s de 10 a&ntilde;os<sup>13</sup>. Las gu&iacute;as de la Sociedad A<b>i</b>mericana de Trasplante recomiendan el empleo de tuberculina en forma independiente del estado de vacunaci&oacute;n del candidato<sup>14</sup>.</font></p>  	    <p align="justify"><font size="2" face="Verdana">Respecto del empleo de IGRAS <i>(Interferon Gamma Release Assays),</i> la sensibilidad y especiicidad de estos m&eacute;todos var&iacute;a seg&uacute;n el tipo empleado y la poblaci&oacute;n estudiada y fluct&uacute;a entre 50 a 100% y 85 a 100%, respectivamente, en los diferentes estudios<sup>15</sup>. Hay pocos reportes de detecci&oacute;n de TBC latente con estos m&eacute;todos, por lo que se requiere una mejor evaluaci&oacute;n. Un estudio en que se compar&oacute; <i>Quantiferon&reg; TB gold</i> con test de tuberculina para el diagn&oacute;stico de TBC latente en candidatos a trasplante hep&aacute;tico, demostr&oacute; que ambas t&eacute;cnicas eran comparables<sup>16</sup>.</font></p>  	    <p align="justify"><font size="2" face="Verdana">Un paciente con test de tuberculina positivo, im&aacute;genes pulmonares sugerentes de TBC activa o cicatrizada (lesiones iniltrativas, cavitarias o ibronodulares apicales, n&oacute;dulos calcificados, patolog&iacute;a pleural) o con sintomatolog&iacute;a sospechosa, debe someterse a una b&uacute;squeda activa del bacilo de Koch, a trav&eacute;s de cultivo y ampliicaci&oacute;n gen&eacute;tica en muestras de expectoraci&oacute;n, lavado bronquio&#45;alveolar y orina<sup>17</sup>.</font></p>  	    <p align="justify"><font size="2" face="Verdana">Toda enfermedad por <i>M. tuberculosis</i> en el donante o receptor debe ser tratada hasta su regresi&oacute;n microbiol&oacute;gica y resoluci&oacute;n radiol&oacute;gica antes de considerar el trasplante<sup>17</sup>. Un donante con TBC activa o sospecha de ella no debe ser considerado para trasplante<sup>1,18</sup>.</font></p>  	    <p align="justify"><font size="3" face="Verdana"><b>Tratamiento de la tuberculosis latente</b></font></p>  	    <p align="justify"><font size="2" face="Verdana">El tratamiento de TBC latente supone un riesgo variable de toxicidad, principalmente hep&aacute;tica y requiere un control muy estricto de los niveles plasm&aacute;ticos de la terapia inmunosupresora. A la fecha, isoniazida es el f&aacute;rmaco de elecci&oacute;n para la proilaxis y ha demostrado ser efectiva en trasplante renal, hep&aacute;tico y card&iacute;aco<sup>19&#45;21</sup>. La ATS y el CDC recomiendan nueve meses de terapia. Algunos autores sugieren que el riesgo de hepatotoxicidad de la isoniazida sobrepasa el beneficio de su uso. No obstante, el seguimiento de la funci&oacute;n hep&aacute;tica cada 15 d&iacute;as ha demostrado ser una estrategia &uacute;til para controlarla.</font></p> 	    <p align="center"><font size="2" face="Verdana"><img src="/fbpe/img/rci/v29s1/rec09-08.jpg" width="331" height="353"></font></p> 	    
<p align="justify"><font size="2" face="Verdana"><b><i>Agradecimientos:</i></b> Un especial agredecimiento a Victorino Farga por sus oportunos consejos cient&iacute;ficos y editoriales. Un maestro, ejemplo de dedicaci&oacute;n y sencillez.</font></p>  	    <p align="justify">&nbsp;</p>  	    <p align="justify"><font size="3" face="Verdana"><b>Referencias bibliogr&aacute;ficas</b></font></p>  	    ]]></body>
<body><![CDATA[<!-- ref --><p align="justify"><font size="2" face="Verdana">1.-  Peters T G, Reiter C G, Boswell R L. Transmission of tuberculosis by kidney transplantation. Transplantation 1984; 38: 514&#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=S0716-1018201200050000900001&pid=S0716-10182012000500009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');"></a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font size="2" face="Verdana">2.-  Jereb J A, Burwen D R, Dooley S W, Haas W H, Crawford J T, Geiter L J, et al. Nosocomial outbreak of tuberculosis in a renal transplant unit: application of a new technique for restriction fragment length polymorphism analysis of <i>Mycobacterium tuberculosis</i> isolates. J Infect Dis 1993; 168: 1219&#45;24.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scieloOrg/php/reflinks.php?refpid=S0716-1018201200050000900002&pid=S0716-10182012000500009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');"></a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font size="2" face="Verdana">3.-  Singh N, Paterson D L. <i>Mycobacterium</i> <i>tuberculosis</i> infection in solid&#45;organ transplant recipients: impact and implications for management. Clin Infect Dis 1998; 27: 1266&#45;77.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scieloOrg/php/reflinks.php?refpid=S0716-1018201200050000900003&pid=S0716-10182012000500009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');"></a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font size="2" face="Verdana">4.-  Farga V. Tuberculosis. Tercera ed: Mediterr&aacute;neo; 2011.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scieloOrg/php/reflinks.php?refpid=S0716-1018201200050000900004&pid=S0716-10182012000500009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');"></a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font size="2" face="Verdana">5.-  Torre&#45;Cisneros J, Doblas A, Aguado J M, San Juan R, Blanes M, Montejo M, et al. Tuberculosis after solid&#45;organ transplant: incidence, risk factors, and clinical characteristics in the RESITRA (Spanish Network of Infection in Transplantation) cohort. Clin Infect Dis 2009; 48: 1657&#45;65.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scieloOrg/php/reflinks.php?refpid=S0716-1018201200050000900005&pid=S0716-10182012000500009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');"></a>&#160;]<!-- end-ref --></font></p>  	    ]]></body>
<body><![CDATA[<!-- ref --><p align="justify"><font size="2" face="Verdana">6.-  Mu&ntilde;oz P, Rodr&iacute;guez C, Bouza E. <i>Mycobacterium tuberculosis</i> infection in recipients of solid organ transplants. Clin Infect Dis 2005; 40: 581&#45;7.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scieloOrg/php/reflinks.php?refpid=S0716-1018201200050000900006&pid=S0716-10182012000500009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');"></a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font size="2" face="Verdana">7.-  Cordonnier C, Martino R, Trabasso P, Held T K, Akan H, Ward M S, et al. Mycobacterial infection: a difficult and late diagnosis in stem cell transplant recipients. Clin Infect Dis 2004; 38: 1229&#45;36.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scieloOrg/php/reflinks.php?refpid=S0716-1018201200050000900007&pid=S0716-10182012000500009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');"></a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font size="2" face="Verdana">8.-  Basiri A, Moghaddam SM, Simforoosh N, Einollahi B, Hosseini M, Foirouzan A, et al. Preliminary report of a nationwide case&#45;control study for identifying risk factors of tuberculosis following renal transplantation. Transplant Proc 2005; 37: 3041&#45;4.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scieloOrg/php/reflinks.php?refpid=S0716-1018201200050000900008&pid=S0716-10182012000500009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');"></a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font size="2" face="Verdana">9.-  Torres J, Aguado J M, San Juan R, Andr&eacute;s A, Sierra P, L&oacute;pez&#45;Medrano F, et al. Hepatitis C virus, an important risk factor for tuberculosis in immunocompromised: experience with kidney transplantation. Transpl Int 2008; 21: 873&#45;8.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scieloOrg/php/reflinks.php?refpid=S0716-1018201200050000900009&pid=S0716-10182012000500009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');"></a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font size="2" face="Verdana">10.-  John G T, Shankar V, Abraham A M, Mukundan U, Thomas PP, Jacob C K. Risk factors for post&#45;transplant tuberculosis. Kidney Intern 2001; 60: 1148&#45;53.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scieloOrg/php/reflinks.php?refpid=S0716-1018201200050000900010&pid=S0716-10182012000500009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');"></a>&#160;]<!-- end-ref --></font></p>  	    ]]></body>
<body><![CDATA[<!-- ref --><p align="justify"><font size="2" face="Verdana">11.-  Tharayil John G, Shankar V, Talaulikar G, Mathews M S, Abraham Abraham M, Punnakuzhathil Thomas P, et al. Epidemiology of systemic mycoses among renal&#45;transplant recipients in India. Transplantation 2003; 75: 1544&#45;51.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scieloOrg/php/reflinks.php?refpid=S0716-1018201200050000900011&pid=S0716-10182012000500009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');"></a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font size="2" face="Verdana">12.-  Mary M S, Yuen K Y, Woo P C, Luk W K, Tsang K W, Lam W K, et al. Risk factors for pulmonary tuberculosis in bone marrow transplant recipients. Am J Resp Crit Care Med 1998; 158: 1173&#45;7.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scieloOrg/php/reflinks.php?refpid=S0716-1018201200050000900012&pid=S0716-10182012000500009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');"></a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font size="2" face="Verdana">13.-  Farhat M, Greenaway C, Pai M, Menzies D. False&#45;positive tuberculin skin tests: what is the absolute effect of BCG and non&#45;tuberculous mycobacteria? Int J Tuberc Lung Dis 2006; 10: 1192&#45;204.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scieloOrg/php/reflinks.php?refpid=S0716-1018201200050000900013&pid=S0716-10182012000500009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');"></a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font size="2" face="Verdana">14.-  Society A T. Targeted tuberculin testing and treatment of latent tuberculosis infection. Am J Resp Crit Care Med 2000; 161 (Suppl): 221&#45;47.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scieloOrg/php/reflinks.php?refpid=S0716-1018201200050000900014&pid=S0716-10182012000500009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');"></a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font size="2" face="Verdana">15.-  CDC. Updated Guidelines for Using Interferon Gamma Release Assays to Detect Mycobacterium tuberculosis Infection&#45;United States, 2010. MMWR Morbid Mortal Wkly Rep 2010; 59.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scieloOrg/php/reflinks.php?refpid=S0716-1018201200050000900015&pid=S0716-10182012000500009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');"></a>&#160;]<!-- end-ref --></font></p>  	    ]]></body>
<body><![CDATA[<!-- ref --><p align="justify"><font size="2" face="Verdana">16.-  Manuel O, Humar A, Preiksaitis J, Doucette K, Shokoples S, Peleg AY, et al. Comparison of quantiferon&#45;TB gold with tuberculin skin test for detecting latent tuberculosis infection prior to liver transplantation. Am J Transplant 2007; 7: 2797&#45;801.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scieloOrg/php/reflinks.php?refpid=S0716-1018201200050000900016&pid=S0716-10182012000500009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');"></a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font size="2" face="Verdana">17.-  Fischer S A, Avery R K, Practice ASTIDCo. Screening of donor and recipient prior to solid organ transplantation. Am J Transplant 2009; 9 Suppl 4: S7&#45;18.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scieloOrg/php/reflinks.php?refpid=S0716-1018201200050000900017&pid=S0716-10182012000500009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');"></a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font size="2" face="Verdana">18.-  Mourad G, Soulillou J P, Chong G, Pouliquen M, Hourmant M, Mion C. Transmission of <i>Mycobacterium tuberculosis</i> with renal allografts. Nephron 1985; 41: 82&#45;5.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scieloOrg/php/reflinks.php?refpid=S0716-1018201200050000900018&pid=S0716-10182012000500009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');"></a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font size="2" face="Verdana">19.-  Agarwal S A, Gupta S, Dash S C, Bhowmik D, Tiwari S C. Prospective randomised trial of isoniazid prophylaxis in renal transplant recipient. Intern Urol Nephrol 2004; 36: 425&#45;31.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scieloOrg/php/reflinks.php?refpid=S0716-1018201200050000900019&pid=S0716-10182012000500009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');"></a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font size="2" face="Verdana">20.-  Benito N, Sued O, Moreno A, Horcajada J P, Gonz&aacute;lez J, Navasa M, et al. Diagnosis and treatment of latent tuberculosis infection in liver transplant recipients in an endemic area. Transplantation 2002; 74: 1381&#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=S0716-1018201200050000900020&pid=S0716-10182012000500009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');"></a>&#160;]<!-- end-ref --></font></p>  	    ]]></body>
<body><![CDATA[<!-- ref --><p align="justify"><font size="2" face="Verdana">21.-  John GT, Thomas P P, Thomas M, Jeyaseelan L, Jacob C K, Shastry J C. A double&#45;blind randomized controlled trial of primary isoniazid prophylaxis in dialysis and transplant patients. Transplantation 1994; 57: 1683&#45;4.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scieloOrg/php/reflinks.php?refpid=S0716-1018201200050000900021&pid=S0716-10182012000500009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');"></a>&#160;]<!-- end-ref --></font></p>  	    <p align="justify">&nbsp;</p>  	    <p align="justify"><font size="2" face="Verdana">La autora declara no tener conflictos de inter&eacute;s.</font></p>         <p align="justify"><font size="2" face="Verdana"><b><a name="back"></a><a href="#top"><img src="/fbpe/img/rci/v29s1/flecha.jpg" alt="" width="15" height="17"></a>Correspondencia a:Correspondencia a:</b> <a href="mailto:mlafourcade@hotmail.com">mlafourcade@hotmail.com</a></font></p>     
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