<?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>0212-1611</journal-id>
<journal-title><![CDATA[Nutrición Hospitalaria]]></journal-title>
<abbrev-journal-title><![CDATA[Nutr. Hosp.]]></abbrev-journal-title>
<issn>0212-1611</issn>
<publisher>
<publisher-name><![CDATA[Grupo Arán]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0212-16112006000200002</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Infección asociada al catéter en nutrición parenteral domiciliaria: resultados del grupo NADYA y presentación del nuevo protocolo]]></article-title>
<article-title xml:lang="en"><![CDATA[Catheter-related infection in home-based parenteral nutrition: outcomes from the NADYA Group and presentation of a new protocol]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cuerda Compés]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bretón Lesmes]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bonada Sanjaume]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Planas Vila]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<xref ref-type="aff" rid="A03"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,HGU Gregorio Marañon Unidad de Nutrición Clínica y Dietética ]]></institution>
<addr-line><![CDATA[Madrid ]]></addr-line>
</aff>
<aff id="A02">
<institution><![CDATA[,Hospital San Joan Reus Unidad de Nutrición ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<aff id="A03">
<institution><![CDATA[,Hospital Universitario Vall d'Hebrón Unidad de Nutrición ]]></institution>
<addr-line><![CDATA[Barcelona ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2006</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2006</year>
</pub-date>
<volume>21</volume>
<numero>2</numero>
<fpage>132</fpage>
<lpage>138</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_arttext&amp;pid=S0212-16112006000200002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_abstract&amp;pid=S0212-16112006000200002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_pdf&amp;pid=S0212-16112006000200002&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[La nutrición parenteral domiciliaria (NPD) es una modalidad de soporte nutricional que permite la administración de las bolsas de nutrición parenteral en el propio domicilio del enfermo. Desde su utilización a finales de los años 60, este tratamiento ha permitido mantener con vida a pacientes con fallo intestinal que previamente estaban destinados a la muerte. En nuestro país la utilización de este tratamiento es de 2,15 pacientes/ millón de habitantes. Según los datos de NADYA las infecciones del catéter suponen el 50% de todas las complicaciones relacionadas con la NPD. En las series con mayor número de pacientes las tasas de infección son de 0,5-2 infecciones/1000 días o de 0,3-0,5 infecciones/paciente/ año. La mayoría de ellas están producidas por microorganismos gram positivos que migran desde la piel o desde las conexiones del catéter hasta la punta del mismo. El diagnóstico de estas infecciones se realiza con datos clínicos y con diferentes tipos de cultivos microbiológicos. En el tratamiento de estas infecciones es importante intentar mantener el catéter, administrando los antibióticos a través del mismo de forma convencional o bien mediante la técnica del sellado con antimicrobianos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Hom parenteral nutrition (HPN) is a nutritional support modality that allows for the supply of parenteral nutrition bags to the patient's home. Since its first use in the late 60s, this therapy has allowed maintaining patients with intestinal failure alive that previously were doomed to death. In our country, this therapy is used by 2.15 patients pmp. According to the NADYA data, catheter-related infections account for 50% of all HPN-related complications. In larger series,infection rates are 0.5-2 infections/1000 days or 0.3-0.5 infections/patient/year. Most of them are produced by gram-positive organisms that migrate from the skin or from catheter connections to the tip. These infections are diagnosed by means of clinical data and with different microbiological cultures. When treating these infections, it is important to keep the catheter in place, and administering antibiotics through it, conventionally or with the antibioticolade technique.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Nutrición parenteral domiciliaria]]></kwd>
<kwd lng="es"><![CDATA[Soporte nutricional]]></kwd>
<kwd lng="es"><![CDATA[Antimicrobianos]]></kwd>
<kwd lng="en"><![CDATA[Home parenteral nutrition]]></kwd>
<kwd lng="en"><![CDATA[Nutritional support]]></kwd>
<kwd lng="en"><![CDATA[Antimicrobials]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="right"><font face="Verdana" size="2"><b>ORIGINAL</b></font></p>    <p>&nbsp;</p>    <p><font face="Verdana" size="4"><b><a name="top"></a>Infecci&oacute;n asociada al cat&eacute;ter en nutrici&oacute;n parenteral domiciliaria:   resultados del grupo NADYA y presentaci&oacute;n del nuevo protocolo</b></font></p>    <p><font face="Verdana" size="4"><b>Catheter-related infection in home-based parenteral nutrition: outcomes from the NADYA Group and presentation of a new protocol</b></font></p>    <p>&nbsp;</p>    <p>&nbsp;</p>    <p><b><font face="Verdana" size="2">C. Cuerda Comp&eacute;s, I. Bret&oacute;n Lesmes, A. Bonada Sanjaume<sup>*</sup> y M. Planas Vila<sup>**</sup> en representaci&oacute;n de NADYA (Grupo de trabajo de Nutrici&oacute;n Artificial Domiciliaria y Ambulatoria) de la SENPE (Sociedad Espa&ntilde;ola de Nutrici&oacute;n Parenteral y Enteral) </font></b></p>    <p><font face="Verdana" size="2">Unidad de Nutrici&oacute;n Cl&iacute;nica y Diet&eacute;tica. HGU Gregorio Mara&ntilde;on. Madrid. *Unidad de Nutrici&oacute;n. Hospital San Joan Reus.    <br> **Unidad de Nutrici&oacute;n. Hospital Universitario Vall d'Hebr&oacute;n. Barcelona.</font></p>    <p><font face="Verdana" size="2"><a href="#back">Dirección 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">La nutrici&oacute;n parenteral domiciliaria (NPD) es una modalidad de soporte nutricional que permite la administraci&oacute;n de las bolsas de nutrici&oacute;n parenteral en el propio domicilio del enfermo. Desde su utilizaci&oacute;n a finales de los a&ntilde;os 60, este tratamiento ha permitido mantener con vida a pacientes con fallo intestinal que previamente estaban destinados a la muerte. En nuestro pa&iacute;s la utilizaci&oacute;n de este tratamiento es de 2,15 pacientes/ mill&oacute;n de habitantes. Seg&uacute;n los datos de NADYA las infecciones del cat&eacute;ter suponen el 50% de todas las complicaciones relacionadas con la NPD. En las series con mayor n&uacute;mero de pacientes las tasas de infecci&oacute;n son de 0,5-2 infecciones/1000 d&iacute;as o de 0,3-0,5 infecciones/paciente/ a&ntilde;o. La mayor&iacute;a de ellas est&aacute;n producidas por microorganismos gram positivos que migran desde la piel o desde las conexiones del cat&eacute;ter hasta la punta del   mismo. El diagn&oacute;stico de estas infecciones se realiza con datos cl&iacute;nicos y con diferentes tipos de cultivos microbiol&oacute;gicos.   En el tratamiento de estas infecciones es importante </font>   <font face="Verdana" size="2">   intentar mantener el cat&eacute;ter, administrando los antibi&oacute;ticos a trav&eacute;s del mismo de forma convencional o bien mediante la t&eacute;cnica del sellado con   antimicrobianos.</font></p>    <p>   <font face="Verdana" size="2">   <b>Palabras clave:</b> Nutrici&oacute;n parenteral domiciliaria. Soporte </font> <font face="Verdana" size="2"> nutricional. Antimicrobianos.</font></p> <hr size="1">     <p> <font face="Verdana" size="2"><b>ABSTRACT</b></font></p>    <p> <font face="Verdana" size="2">Hom parenteral nutrition (HPN) is a nutritional support modality that allows for the supply of parenteral nutrition bags to the patient's home. Since its </font> <font face="Verdana" size="2"> first use in the late 60s, this therapy has allowed maintaining patients with intestinal failure alive that previously were doomed to death. In our country, this therapy is used by 2.15 patients pmp. According to the NADYA data, catheter-related infections account for 50% of all HPN-related complications. In larger series,infection rates are 0.5-2 infections/1000 days or 0.3-0.5 infections/patient/year. Most of them are produced by gram-positive organisms that migrate from the skin or from catheter connections to the tip. These infections are diagnosed by means of clinical data and with different microbiological cultures. When treating these infections, it is important to keep the catheter in place, and administering antibiotics through it, conventionally or with the antibioticolade technique.</font></p> <font face="arial" color="#000000" size="2"></font>    <p> <font face="Verdana" size="2"> <b> Key words:</b><i>  </i> Home parenteral nutrition. Nutritional support. Antimicrobials.</font></p> <hr size="1">     <p>   &nbsp;</p>    <p>   <b><font face="Verdana" size="3">Introducción</font></b></p>    ]]></body>
<body><![CDATA[<p><font face="Verdana" size="2">La nutrici&oacute;n parenteral domiciliaria (NPD) es una modalidad de soporte nutricional que permite la administraci&oacute;n de las bolsas de nutrici&oacute;n parenteral en el propio domicilio del enfermo.</font></p>    <p><font face="Verdana" size="2">Desde que se emple&oacute; por primera vez en 1967, su utilizaci&oacute;n ha ido creciendo en muchos pa&iacute;ses, permitiendo la supervivencia de pacientes con fallo intestinal que previamente estaban destinados a morir<sup>1</sup>. En Europa, la incidencia y la prevalencia medias de la NPD es de 3/10<sup>6</sup> y 4/10<sup>6</sup> habitantes/a&ntilde;o, espectivamente<sup>2</sup>. En los Estados Unidos, la prevalencia es muy superior llegando a 120 pacientes/106 habitantes<sup>3</sup>.</font></p>    <p><font face="Verdana" size="2">En nuestro pa&iacute;s, en el &uacute;ltimo registro de NPD del   a&ntilde;o 2003 hab&iacute;a 86 pacientes (2,15/106 habitantes), siendo las causas m&aacute;s frecuentes del fallo intestinal las neoplasias (21%), la isquemia mesent&eacute;rica (20%), enteritis   r&aacute;dica (16,3%), alteraciones de la motilidad intestinal (10,5%) y la enfermedad de Crohn (4,6%)<sup>4</sup>. Para la infusi&oacute;n de la nutrici&oacute;n parenteral es necesario disponer de un acceso venoso central. La Food and Drug Administration (FDA) clasifica los tipos de cat&eacute;teres centrales en 2 grupos seg&uacute;n la duraci&oacute;n de la cateterizaci&oacute;n (<a href="/img/revistas/nh/v21n2/2_1.gif" target="_blank">tabla I</a>).</font></p>    <p><font face="Verdana" size="2">En los pacientes con NPD son de elecci&oacute;n los cat&eacute;teres de larga duraci&oacute;n (cat&eacute;ter tunelizado o TID) debido a su menor riesgo de desplazamiento o salida y menor tasa de infecciones<sup>5-8</sup>.</font></p>    <p><font face="Verdana" size="2">En el registro de NPD de nuestro pa&iacute;s del a&ntilde;o 2003 el 66,3% de los pacientes utilizaron cat&eacute;teres tunelizados y el 29,1% TID<sup>4</sup>.</font></p>    <p><font face="Verdana" size="2">A continuaci&oacute;n presentamos los datos sobre las complicaciones infecciosas de los pacientes con NPD del grupo NADYA en los &uacute;ltimos a&ntilde;os, as&iacute; como un protocolo de diagn&oacute;stico y tratamiento de las infecciones asociadas al cat&eacute;ter (IAC) que hemos elaborado desde dicho grupo de trabajo.</font></p>    <p>&nbsp;</p>    <p><b><font face="Verdana" size="3">Complicaciones infecciosas en pacientes con NPD</font></b></p>    <p><font face="Verdana" size="2">Las infecciones relacionadas con el cat&eacute;ter son las complicaciones m&aacute;s frecuentes en los pacientes con NPD. Su incidencia es variable de unas series a otras y deber&iacute;a expresarse por 1000 d&iacute;as de utilizaci&oacute;n del cat&eacute;ter. En los centros que cuentan con mayor experiencia las tasas son de 0,5-2 infecciones/1.000 d&iacute;as o 0,3-0,5 infecciones/paciente/a&ntilde;o<sup>9-13</sup>.</font> <font face="Verdana" size="2">En los resultados del grupo NADYA (2001-2003) el 50% de las complicaciones relacionadas con la NPD fueron infecciones relacionadas con el cat&eacute;ter (<a href="/img/revistas/nh/v21n2/2_2.gif" target="_blank">tabla II</a>)<sup>4, 14, 15</sup>. En los &uacute;ltimos datos del registro de NADYA 2004-2005 la tasa de infecci&oacute;n fue de 1,2 infecciones/ 1.000 d&iacute;as.</font></p>    <p>&nbsp;</p>    ]]></body>
<body><![CDATA[<p><b><font face="Verdana" size="3">Clasificaci&oacute;n y patogenia</font></b></p>    <p><font face="Verdana" size="2">En su &uacute;ltima revisi&oacute;n del a&ntilde;o 2002, los Centers for Disease Control (CDC) establecen los tipos de IAC que se muestran en la <a href="/img/revistas/nh/v21n2/2_3.gif" target="_blank"> tabla III<sup></a>16, 17</sup>.</font></p>    <p>   <font face="Verdana" size="2">   La infecci&oacute;n del cat&eacute;ter puede tener distintos or&iacute;genes<sup>18-20</sup>:</font></p>    <p>   <font face="Verdana" size="2">   &bull; Diseminaci&oacute;n extraluminal desde la piel hasta la punta del cat&eacute;ter. Es la m&aacute;s frecuente, especialmente en los cat&eacute;teres de corta duraci&oacute;n, siendo menos frecuente   en los cat&eacute;teres tunelizados por el bloqueo biol&oacute;gico-bacteriol&oacute;gico del t&uacute;nel.</font></p>    <p>   <font face="Verdana" size="2">   &bull; Diseminaci&oacute;n intraluminal por contaminaci&oacute;n de la conexi&oacute;n. Es frecuente en los cat&eacute;teres   tunelizados.</font></p>    <p>   <font face="Verdana" color="#000000" size="2">&bull; Contaminaci&oacute;n de las bolsas de nutrici&oacute;n parenteral. Es excepcional, ya que las bolsas de NPD se preparan en campana de flujo laminar.</font></p>    <p>   <font face="Verdana" color="#000000" size="2">&bull; Diseminaci&oacute;n hemat&oacute;gena desde otro foco (excepcional).   Los microrganismos m&aacute;s frecuentemente involucrados se exponen en la <a href="#t4"> tabla   IV<sup></a>11, 16, 17</sup>.</font></p>    <p align="center">   <font face="arial" color="#000000" size="2"><a name="t4"><img src="/img/revistas/nh/v21n2/2_4.gif" width="359" height="315"></a></font></p>    <p>   <font face="Verdana" color="#000000" size="2">       <br>   Existen adem&aacute;s distintos factores que pueden influir en la frecuencia de aparici&oacute;n de las IAC que se resumen en la   <a href="/img/revistas/nh/v21n2/2_5.gif" target="_blank"> tabla V<sup></a>21-25</sup>.</font></p><font face="arial" color="#000000" size="2">    ]]></body>
<body><![CDATA[<p>   </p></font>    <p>   <b><font face="Verdana" color="#000000" size="3">Diagn&oacute;stico</font></b></p>    <p>   <font face="Verdana" color="#000000" size="2">Debemos sospechar una IAC en un paciente con NPD ante cualquier cuadro brusco de fiebre (habitualmente "en picos"), sin otro foco aparente de infecci&oacute;n.</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   Generalmente la fiebre estar&aacute; en relaci&oacute;n con la infusi&oacute;n de la nutrici&oacute;n   parenteral. El diagn&oacute;stico incluye el estudio de otros posibles focos infecciosos y el diagn&oacute;stico microbiol&oacute;gico:</font></p>    <p>   <font face="Verdana" color="#000000" size="2">&bull; <i> Diagn&oacute;stico de bacteriemia asociada a cat&eacute;ter</i>, mediante hemocultivos cl&aacute;sicos extra&iacute;dos de sangre perif&eacute;rica y/o de la propia v&iacute;a central. Cuando la diferencia   en el tiempo de crecimiento de los hemocultivos obtenidos de la v&iacute;a central frente a la v&iacute;a perif&eacute;rica es &gt; 2 horas a favor la v&iacute;a central, podemos asumir que el origen de la infecci&oacute;n es el cat&eacute;ter<sup>26</sup>. Tambi&eacute;n resultan muy &uacute;tiles los hemocultivos cuantitativos de sangre obtenida a trav&eacute;s de cada una de las luces del cat&eacute;ter y de sangre perif&eacute;rica. Se establece un cociente entre los resultados obtenidos y si el n&uacute;mero de colonias que crece en la luz central es m&aacute;s de 5 veces superior al de la sangre perif&eacute;rica, existe una alta sospecha de que la bacteriemia provenga del cat&eacute;ter<sup>27,   28</sup>.</font></p>    <p>   <font face="Verdana" color="#000000" size="2">&bull; <i> Diagn&oacute;stico de la colonizaci&oacute;n del cat&eacute;ter</i>: puede establecerse por diferentes m&eacute;todos<sup>29</sup>:</font></p>    <p>   <font face="Verdana" color="#000000" size="2">- <i> cultivo del cat&eacute;ter</i>. El cultivo cualitativo no se recomienda en la actualidad. El semicuantitativo (t&eacute;cnica de Maki) es el m&aacute;s empleado y consiste en hacer &quot;rodar" el cat&eacute;ter por un medio de cultivo y hacer un contaje de las colonias que crecen. En general se considera positivo cuando existen m&aacute;s de 15 UFC. El cultivo   cuantitativo es una t&eacute;cnica m&aacute;s compleja y laboriosa. Se considera positivo si existen m&aacute;s de 1000 UFC por ml. Estas t&eacute;cnicas exigen la retirada del cat&eacute;ter.</font></p>    <p>   <font face="Verdana" color="#000000" size="2">- <i> cultivo de la conexi&oacute;n y de la piel de cat&eacute;ter</i>. El cultivo de la conexi&oacute;n se har&aacute; con torunda de alginato y el de la piel con torunda de algod&oacute;n sin medios de   transporte. Estos cultivos superficiales tiene un valor predictivo alto respecto a la colonizaci&oacute;n de la punta del cat&eacute;ter<sup>30,   31</sup>. Tambi&eacute;n puede hacerse un Gram de la   conexi&oacute;n, que es un m&eacute;todo r&aacute;pido aunque poco sensible.</font></p>    <p>   <font face="Verdana" color="#000000" size="2">- <i> otras t&eacute;cnicas</i> incluyen el cultivo de material obtenido mediante cepillado de la luz del cat&eacute;ter, que tiene la ventaja que no obliga a retirarlo, si bien la posibilidad   de contaminaci&oacute;n de la muestra es alta<sup>32</sup>.</font></p>    <p>   &nbsp;</p>    ]]></body>
<body><![CDATA[<p>   <b><font face="Verdana" color="#000000" size="3">Tratamiento</font></b></p>    <p>   <font face="Verdana" color="#000000" size="2">Dado que los pacientes que reciben NPD con frecuencia necesitar&aacute;n este tratamiento de forma prolongada, es importante intentar conservar el cat&eacute;ter durante  <font color="#000000">   los episodios infecciosos. Para realizar este tratamiento conservador deberemos no s&oacute;lo tratar la sepsis, sino esterilizar el cat&eacute;ter evitando as&iacute; la aparici&oacute;n de reca&iacute;das. Existen unos criterios que permiten (bien en la primera evaluaci&oacute;n del paciente o en la evoluci&oacute;n) decidir si se debe retirar o no el cat&eacute;ter11, 32, 33   (<a href="/img/revistas/nh/v21n2/2_6.gif" target="_blank">tabla VI</a>) .</font></font></p>    <p>  <font color="#000000" size="2" face="Verdana">   Es aconsejable el ingreso en el hospital de los pacientes con sospecha de sepsis de cat&eacute;ter, para permitir un diagn&oacute;stico microbiol&oacute;gico e iniciar el tratamiento antibi&oacute;tico. En muchos casos, si la evoluci&oacute;n es buena, se puede completar el tratamiento antibi&oacute;tico en el domicilio del   paciente.</font></p>    <p>  <font color="#000000" size="2" face="Verdana">   Basados en los datos de la literatura<sup>34-37</sup> y en nuestra propia experiencia cl&iacute;nica hemos consensuado el siguiente protocolo de actuaci&oacute;n para el tratamiento de las IAC en pacientes con NPD   (<a href="/img/revistas/nh/v21n2/2_7.gif" target="_blank">fig. 1</a>):</font></p>    <p>   <font face="Verdana" color="#000000" size="2">1. Valoraci&oacute;n cl&iacute;nica del paciente, descartando otros focos infecciosos. Valoraci&oacute;n de la posibilidad de conservar el cat&eacute;ter   (<a href="/img/revistas/nh/v21n2/2_6.gif" target="_blank">tabla VI</a>).</font></p>    <p>   <font face="Verdana" color="#000000" size="2">2. Toma de muestras de cultivo: cada centro debe aplicar su propia metodolog&iacute;a seg&uacute;n las posibilidades del Laboratorio de Microbiolog&iacute;a:</font></p>    <p>   <font face="Verdana" color="#000000" size="2">- Cultivos de sangre obtenida a trav&eacute;s de todas las luces del cat&eacute;ter y de sangre perif&eacute;rica o hemocultivos de sangre perif&eacute;rica y central con lecturas precoces   para valorar la velocidad de crecimiento   </font></p>    <p>   <font face="Verdana" color="#000000" size="2">   - Cutivo de la piel que rodea al cat&eacute;ter</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   - Cultivos de cada una de las conexiones</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   - Cultivo de la punta del cat&eacute;ter en caso de que se decida retirarlo</font></p>    ]]></body>
<body><![CDATA[<p>   <font face="Verdana" color="#000000" size="2">   - Cultivo de la bolsa de nutrici&oacute;n parenteral.</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   3. Interrupci&oacute;n de la administraci&oacute;n de nutrici&oacute;n parenteral, colocando una v&iacute;a venosa perif&eacute;rica para sueroterapia si es preciso.</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   4. Tratamiento antibi&oacute;tico emp&iacute;rico: La cobertura inicial en los casos de sepsis deber&aacute; comprender a gram+ y a gram-. Se recomienda la asociaci&oacute;n de: glucop&eacute;ptido   </font><font face="Verdana" color="#000000" size="2">(vancomicina o teicoplanina) o linezolid + aminogluc&oacute;sido o aztreonam o cefalosporina de 3ª generaci&oacute;n Los antibi&oacute;ticos deben administrarse siempre a trav&eacute;s   </font><font face="Verdana" color="#000000" size="2">   del cat&eacute;ter. Valorar la posibilidad de tratamiento con "sellado del cat&eacute;ter con antimicrobianos", (ver m&aacute;s abajo).</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   En las infecciones del orificio de salida o del t&uacute;nel se recomienda realizar s&oacute;lo cobertura de gram + con vancomicina i.v. o cotrimoxazol oral.</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   5. Ajustar el tratamiento antibi&oacute;tico emp&iacute;rico seg&uacute;n los resultados microbiol&oacute;gicos</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   6. Valorar la evoluci&oacute;n cl&iacute;nica:</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   - Si la evoluci&oacute;n es favorable se reiniciar&aacute; la infusi&oacute;n de nutricion parenteral a la 48-72 horas.</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   - Valorar retirada del cat&eacute;ter si persiste fiebre o bacteriemia a las 48-72 horas de iniciado el tratamiento antibi&oacute;tico.</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   - Valorar posible aparici&oacute;n de complicaciones (endocarditis...)</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   7. Duraci&oacute;n del tratamiento:</font></p>    ]]></body>
<body><![CDATA[<p>   <font face="Verdana" color="#000000" size="2">   - Sepsis: 2 semanas. En caso de sepsis por <i> Staphylococcus aureus</i> se recomienda mantener los antibi&oacute;ticos de 2-3 semanas</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   - Endocarditis: 4-6 semanas.</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   - Infecciones del orificio de salida: 2 semanas</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   - Recurrencias: 6 semanas</font></p>    <p>   &nbsp;</p>    <p>   <b><font face="Verdana" color="#000000" size="3">T&eacute;cnica del "sellado del cat&eacute;ter con   antimicrobianos&quot;</font></b></p>    <p>   <font face="Verdana" color="#000000" size="2">En los &uacute;ltimos a&ntilde;os se ha popularizado la t&eacute;cnica del "sellado del cat&eacute;ter con antimicrobianos" para el tratamiento de las   IAC<sup>38</sup>. Este m&eacute;todo permite administrar   </font><font face="Verdana" color="#000000" size="2">   una soluci&oacute;n concentrada de antibi&oacute;ticos en la luz del cat&eacute;ter para que ejerza un efecto local, con menos efectos a nivel sist&eacute;mico<sup>39</sup>. No est&aacute; bien estandarizado   </font><font face="Verdana" color="#000000" size="2">   la forma de administraci&oacute;n de este tratamiento, por lo que dependiendo de los autores se han aplicado diferentes antibi&oacute;ticos, diferentes concentraciones, con o sin heparina en el sellado, distinta duraci&oacute;n del tratamiento y con o sin aplicaci&oacute;n previa de un breve curso de antibi&oacute;tico por v&iacute;a sist&eacute;mica<sup>40</sup>. Aunque no est&aacute;   </font><font face="Verdana" color="#000000" size="2">   demostrado que este tratamiento tenga una mayor tasa de salvamento de cat&eacute;teres que el tratamiento convencional con antibi&oacute;ticos intravenosos, la facilidad   </font><font face="Verdana" color="#000000" size="2">   de su aplicaci&oacute;n y la posibilidad de completar el tratamiento en el domicilio del enfermo, lo hacen muy atractivo para los pacientes con nutrici&oacute;n parenteral   domiciliaria<sup>41, 42</sup>.</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   Hemos elaborado el siguiente protocolo de tratamiento con "sellado del cat&eacute;ter con antimicrobianos ":</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   &bull; Realizar cultivos superficiales (piel y conexi&oacute;n) y hemocultivos cuantitativos (luces del cat&eacute;ter y v&iacute;a perif&eacute;rica) o hemocultivos con lecturas precoces.</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   &bull; Suspender la nutrici&oacute;n parenteral durante 48 horas.</font></p>    ]]></body>
<body><![CDATA[<p>   <font face="Verdana" color="#000000" size="2">   &bull; Dejar el cat&eacute;ter de la NP en reposo sin antibi&oacute;ticos para proceder al sellado del mismo una vez se conozca la etiolog&iacute;a</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   &bull; Tratamiento antibi&oacute;tico emp&iacute;rico con vancomicina o teicoplanina o linezolid m&aacute;s ceftriaxona o aminogluc&oacute;sido o aztreonan a trav&eacute;s de una v&iacute;a perif&eacute;rica o central, distinta de la de la NP, a las dosis habituales durante 48 horas (valorar seg&uacute;n los casos)</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   &bull; Si el paciente permanece afebril tras 48 horas de haber iniciado el tratamiento antibi&oacute;tico comenzar con "sellado del cat&eacute;ter con antimicrobianos" dejando el   </font><font face="Verdana" color="#000000" size="2">   cat&eacute;ter sellado con el antibi&oacute;tico durante 12 horas e infundiendo la NP en las 12 horas siguientes</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   &bull; El "sellado del cat&eacute;ter con antimicrobianos" se preparar&aacute; en una soluci&oacute;n con un volumen de 2-3 ml con heparina al 5 % con los siguientes antibi&oacute;ticos dependiendo   </font><font face="Verdana" color="#000000" size="2">   de la sensibilidad del microorganismo:</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   - vancomicina 2,5-5 mg/ ml</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   - gentamicina 5 mg/ ml</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   - amikacina 1,5-3 mg/ ml</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   - ciprofloxacino 1 mg/ ml</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   - anfotericina B 2,5 mg/ ml</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   &bull; El tratamiento con el "sellado del cat&eacute;ter con antimicrobianos" se prolongar&aacute; durante 12 d&iacute;as. (Valorar seg&uacute;n los casos).</font></p>    ]]></body>
<body><![CDATA[<p>   <font face="Verdana" color="#000000" size="2">   &bull; Es aconsejable hacer hemocultivos cuantitativos a trav&eacute;s del cat&eacute;ter durante el tratamiento para ver si el cat&eacute;ter se ha esterilizado.</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   &bull; Ser&aacute;n criterios de exclusi&oacute;n para este tipo de tratamiento los siguientes supuestos:</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   - Infecci&oacute;n del t&uacute;nel.</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   - Infecci&oacute;n por <i> S aureus</i> o <i> Candida spp</i>.</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   - Presencia de sepsis complicada (shock, endocarditis, met&aacute;stasis s&eacute;pticas).</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   - Reaparici&oacute;n de la fiebre tras iniciar el "sellado con antimicrobianos&quot;.</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   - Cultivos positivos a los 7 d&iacute;as del tratamiento con el "sellado del cat&eacute;ter con   antimicrobianos&quot;.</font></p>    <p>   <font face="Verdana" color="#000000" size="2">   - Obstrucci&oacute;n del cat&eacute;ter.</font>  </p>    <p>   &nbsp;  </p>    <p>   <b><font color="#000000" face="Verdana" size="3">Referencias</font></b>  </p>    ]]></body>
<body><![CDATA[<!-- ref --><p>   <font face="Verdana" color="#000000" size="2">1. Scribner B, Cole J y cols.: Long-term total parenteral nutrition. The concept of an artificial gut. JAMA 1970; 212:457.   </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=3476142&pid=S0212-1611200600020000200001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p>       <font face="Verdana" color="#000000" size="2">       2. Van Gossum A, Bakker H, Bozzetti F y cols.: Home parenteral nutrition in adults: a European multicentre survey in 1997. 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CID 1995; 21:1286-8.</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=3476183&pid=S0212-1611200600020000200042&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><p>       &nbsp;</p>    <p>       &nbsp;</p>    <p>       <b><font size="2" face="Verdana">       <font face="arial" color="#000000" size="1"><a name="back"></a><a href="#top"><img border="0" src="/img/revistas/nh/v21n2/seta.gif" width="15" height="17"></a></font></font><font size="2" face="Verdana" color="#000000">Dirección       para correspondencia</font></b><font color="#000000" face="Verdana" size="2">    <br>       Cristina Cuerda    <br>   Unidad de Nutrici&oacute;n Cl&iacute;nica y Diet&eacute;tica    <br>   HGU Gregorio Mara&ntilde;&oacute;n    <br>   Doctor Esquerdo, 46    <br>   28007 Madrid    ]]></body>
<body><![CDATA[<br>   E-mail: <a href="mailto:mcuerda.hgugm@salud.madrid.org">mcuerda.hgugm@salud.madrid.org</a></font> </p>    <p>       <font color="#000000" face="Verdana" size="2">Recibido: 20-XII-2005.    <br>   Aceptado: 31-XII-2005.</font> </p>      ]]></body><back>
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