<?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>1134-8046</journal-id>
<journal-title><![CDATA[Revista de la Sociedad Española del Dolor]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Soc. Esp. Dolor]]></abbrev-journal-title>
<issn>1134-8046</issn>
<publisher>
<publisher-name><![CDATA[Inspira Network Group, S.L ]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1134-80462016000200004</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Uso del parche de lidocaína al 5% para el tratamiento del dolor postquirúrgico en cirugía de tórax]]></article-title>
<article-title xml:lang="en"><![CDATA[The use of a 5% lidocaine patch for the treatment of postoperative pain in thoracic surgery]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Dalmau]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bocos]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ribes]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sabate]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Hospital Universitario de Bellvitge Unidad de Dolor Agudo ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<aff id="A02">
<institution><![CDATA[,Hospital Universitario de Bellvitge Servicio de Anestesiología y Reanimación ]]></institution>
<addr-line><![CDATA[Hospitalet de Llobregat ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2016</year>
</pub-date>
<volume>23</volume>
<numero>2</numero>
<fpage>75</fpage>
<lpage>77</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_arttext&amp;pid=S1134-80462016000200004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_abstract&amp;pid=S1134-80462016000200004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_pdf&amp;pid=S1134-80462016000200004&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Una analgesia inadecuada en cirugía torácica facilita las complicaciones respiratorias potencialmente graves y se asocia al síndrome de dolor crónico post-toracotomía. El catéter epidural y el catéter paravertebral son los tratamientos que resultan más efectivos, dentro de una estrategia multimodal. El parche de lidocaína 5% está indicado para el dolor en la neuropatía post-herpética. Existe literatura sobre su utilidad en otros modelos de dolor. Presentamos tres pacientes con dolor postquirúrgico en cirugía de tórax, a pesar del tratamiento convencional, y su buena respuesta analgésica tras la aplicación de parche de lidocaína 5%.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Sub-optimal management of acute post-thoracotomy pain is associated to pulmonary complications and has been identified as an independent factor for a post-thoracotomy pain syndrome. Epidural analgesia and paravertebral catheter are the most effective in a multimodal analgesia regime. Lidocaine patch 5% is for a treatment for post-herpetic neuralgia. Some literature suggests its use in other types of pain. We present three patients after different thoracic procedures with uncontrolled pain despite conventional treatment, and their good pain response to lidocaine patch 5%.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Parche de lidocaína]]></kwd>
<kwd lng="es"><![CDATA[dolor]]></kwd>
<kwd lng="es"><![CDATA[cirugía de tórax]]></kwd>
<kwd lng="en"><![CDATA[Lidocaine patch]]></kwd>
<kwd lng="en"><![CDATA[pain]]></kwd>
<kwd lng="en"><![CDATA[thoracic surgery]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[  <a name="top"></a>    <p><font face="Verdana" size="2"><b>NOTA CL&Iacute;NICA</b></font></p>     <p>&nbsp;</p>     <p><font face="Verdana" size="4"><b>Uso del parche de lidoca&iacute;na al 5% para el tratamiento del dolor postquir&uacute;rgico en cirug&iacute;a de t&oacute;rax</b></font></p>     <p><font face="Verdana" size="4"><b>The use of a 5% lidocaine patch for the treatment of postoperative pain in thoracic surgery</b></font></p>     <p>&nbsp;</p>     <p>&nbsp;</p>     <p><font face="Verdana" size="2"><b>D. S&aacute;nchez, A. Dalmau<sup>1</sup>, J. Bocos<sup>1</sup>, C. Ribes<sup>1</sup>, A. S&aacute;nchez<sup>1</sup> y A. Sabate<sup>2</sup></b></font></p>     <p><font face="Verdana" size="2">Residente de Anestesiolog&iacute;a. <sup>1</sup>Anestesi&oacute;logo de la Unidad de Dolor Agudo. <sup>2</sup>Jefe de Servicio de Anestesiolog&iacute;a y Reanimaci&oacute;n. Hospital Universitario de Bellvitge. Hospitalet de Llobregat. Barcelona</font></p>     <p><font face="Verdana" size="2"><a href="#bajo">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">Una analgesia inadecuada en cirug&iacute;a tor&aacute;cica facilita las complicaciones respiratorias potencialmente graves y se asocia al s&iacute;ndrome de dolor cr&oacute;nico post-toracotom&iacute;a. El cat&eacute;ter epidural y el cat&eacute;ter paravertebral son los tratamientos que resultan m&aacute;s efectivos, dentro de una estrategia multimodal.    <br>El parche de lidoca&iacute;na 5% est&aacute; indicado para el dolor en la neuropat&iacute;a post-herp&eacute;tica. Existe literatura sobre su utilidad en otros modelos de dolor.    <br>Presentamos tres pacientes con dolor postquir&uacute;rgico en cirug&iacute;a de t&oacute;rax, a pesar del tratamiento convencional, y su buena respuesta analg&eacute;sica tras la aplicaci&oacute;n de parche de lidoca&iacute;na 5%.</font></p>     <p><font face="Verdana" size="2"><b>Palabras clave:</b> Parche de lidoca&iacute;na, dolor, cirug&iacute;a de t&oacute;rax.</font></p> <hr size="1">     <p><font face="Verdana" size="2"><b>ABSTRACT</b></font></p>     <p><font face="Verdana" size="2">Sub-optimal management of acute post-thoracotomy pain is associated to pulmonary complications and has been identified as an independent factor for a post-thoracotomy pain syndrome. Epidural analgesia and paravertebral catheter are the most effective in a multimodal analgesia regime.    <br>Lidocaine patch 5% is for a treatment for post-herpetic neuralgia. Some literature suggests its use in other types of pain.    ]]></body>
<body><![CDATA[<br>We present three patients after different thoracic procedures with uncontrolled pain despite conventional treatment, and their good pain response to lidocaine patch 5%.</font></p>     <p><font face="Verdana" size="2"><b>Key words:</b> Lidocaine patch, pain, thoracic surgery.</font></p> <hr size="1">     <p>&nbsp;</p>     <p><font face="Verdana" size="2"><b>Introducci&oacute;n</b></font></p>     <p><font face="Verdana" size="2">El tratamiento adecuado del dolor agudo post-toracotom&iacute;a facilita la recuperaci&oacute;n funcional y disminuye las complicaciones pulmonares y el riesgo de cronificaci&oacute;n (s&iacute;ndrome post-toracotom&iacute;a) (1-4). En nuestra experiencia, este dolor se controla adecuadamente con un protocolo de analgesia multimodal basado en el bloqueo epidural o paravertebral, asociado a antiinflamatorio no esteroideo (AINE), paracetamol y morfina de rescate, permitiendo una movilizaci&oacute;n del paciente en las primeras 24 horas. Sin embargo, ocasionalmente esta pauta de tratamiento no permite el control adecuado del dolor. Presentamos tres pacientes intervenidos de cirug&iacute;a de la caja tor&aacute;cica, con dolor postoperatorio, que se control&oacute; con un parche de lidoca&iacute;na 5 %.</font></p>     <p>&nbsp;</p>     <p><font face="Verdana" size="2"><b>Pacientes y resultados</b></font></p>     <p><font face="Verdana" size="2"><b>Caso 1.</b> Mujer de 45 a&ntilde;os sometida a toracotom&iacute;a para la extirpaci&oacute;n de una masa subcostal en hemit&oacute;rax derecho. Se le administr&oacute; analgesia multimodal mediante un cat&eacute;ter paravertebral durante 72 horas, AINE y morfina de rescate a demanda por la paciente (PCA) con buen control del dolor. Pasadas 72 horas present&oacute; emesis y dolor en reposo de 6/10, crisis de 10/10 con la inspiraci&oacute;n, movimientos y arcadas. Se inici&oacute; parche de lidoca&iacute;na 5 % sobre los dermatomas afectados (T6-T10) a nivel paravertebral derecho durante 12 h de d&iacute;a. Al d&iacute;a siguiente ten&iacute;a ENV en reposo de 2/10 tolerando bien la movilizaci&oacute;n y fisioterapia. No present&oacute; crisis y requiri&oacute; 6 mg de morfina. Tras 48 h del parche de lidoca&iacute;na presentaba un excelente control del dolor, sin rescates de morfina y se movilizaba sin dificultad. El tercer d&iacute;a se suspendi&oacute; el parche de lidoca&iacute;na.</font></p>     <p><font face="Verdana" size="2">Fue dada de alta al sexto d&iacute;a postoperatorio. En primera visita postquir&uacute;rgica, al mes de la intervenci&oacute;n, persist&iacute;a con dolor en regi&oacute;n tor&aacute;cica, que controlaba con dosis bajas de paracetamol y tramadol.</font></p>     <p><font face="Verdana" size="2"><b>Caso 2.</b> Mujer de 53 a&ntilde;os sometida a una esofagectom&iacute;a tipo McKeown por neoplasia de es&oacute;fago. Se le administr&oacute; analgesia multimodal con cat&eacute;ter epidural T5-T6 durante 72h, AINE y morfina s.c. de rescate, presentando un buen control del dolor (ENV 2/10). Al cuarto d&iacute;a postoperatorio present&oacute; exacerbaci&oacute;n de dolor durante las movilizaciones y la fisioterapia (ENV 9/10) y control correcto en reposo (2/10). Se a&ntilde;adi&oacute; parche de lidoca&iacute;na 5 % en zona paravertebral derecha, durante 12 h/d&iacute;a. Veinticuatro horas despu&eacute;s, la paciente presentaba una mejor&iacute;a importante del dolor en movimiento (ENV 3/10), permitiendo reanudar la deambulaci&oacute;n y la fisioterapia hasta el alta al sexto d&iacute;a postoperatorio. Se retir&oacute; en la consulta externa a los 7 d&iacute;as. A los 6 meses de seguimiento no presentaba dolor post-toracotom&iacute;a.</font></p>     ]]></body>
<body><![CDATA[<p><font face="Verdana" size="2"><b>Caso 3.</b> Var&oacute;n de 51 a&ntilde;os sometido a trasplante cardiaco por cardiopat&iacute;a isqu&eacute;mica terminal. Present&oacute; una osteomielitis esternal, requiriendo reintervenci&oacute;n y antibioticoterapia parenteral. Tras dos meses del trasplante present&oacute; dolor tor&aacute;cico desencadenado por tos y expectoraci&oacute;n debido a sobreinfecci&oacute;n respiratoria (ENV 6/10, y crisis incidentales de 10/10 con la inspiraci&oacute;n profunda y tos desencadenada especialmente en la posici&oacute;n de dec&uacute;bito que le imped&iacute;a el descanso nocturno acompa&ntilde;ado de ansiedad reactiva) que no se controlaba con AINE e.v., fentanilo TTS 50 mcg/h, y una media de 4 rescates de morfina e.v. al d&iacute;a. Presentaba somnolencia y estre&ntilde;imiento. Se retir&oacute; el fentanilo y se rot&oacute; la morfina de v&iacute;a parenteral a v&iacute;a oral, s&oacute;lo a demanda. El paciente consinti&oacute; iniciar la administraci&oacute;n durante 12 horas (aplicaci&oacute;n nocturna con descanso diurno) de dos parches de lidoca&iacute;na al 5 %, de forma paralela a nivel de la zona dorsal entre T2-T8 (uno a cada lado). Tambi&eacute;n se intensific&oacute; fisioterapia respiratoria. Al d&iacute;a siguiente, el descanso nocturno fue adecuado, mejorando el dolor (ENV 2/10, crisis de 5/10), sin requerir morfina, mejor&iacute;a que se mantuvo junto con la resoluci&oacute;n progresiva de la infecci&oacute;n respiratoria. Una semana despu&eacute;s, el paciente manten&iacute;a excelente control analg&eacute;sico sin rescates, deambulaba por la habitaci&oacute;n, la tos se hab&iacute;a reducido y ya no le ocasionaba dolor. No present&oacute; ning&uacute;n efecto adverso; los parches se suspendieron tras 8 d&iacute;as de empleo, dejando el AINE a demanda. Una semana despu&eacute;s, manten&iacute;a buen control del dolor.</font></p>     <p>&nbsp;</p>     <p><font face="Verdana" size="2"><b>Discusi&oacute;n</b></font></p>     <p><font face="Verdana" size="2">En los tres pacientes la aplicaci&oacute;n del parche de lidoca&iacute;na, medida sencilla y no invasiva, consigui&oacute; un control adecuado del dolor sin ning&uacute;n efecto adverso. Caben destacar los siguientes aspectos: los pacientes presentaron mal control del dolor despu&eacute;s de un postoperatorio, a pesar de la aplicaci&oacute;n correcta del protocolo analg&eacute;sico; el dolor apareci&oacute; en relaci&oacute;n a unos desencadenantes (caso 1: v&oacute;mitos, caso 2: movilizaci&oacute;n, caso 3: tos) y por &uacute;ltimo, el dolor fue m&aacute;s intenso en una franja horaria. Esto nos hizo pensar en la aplicaci&oacute;n del parche en la zona que precisaba de un soporte analg&eacute;sico adicional, actuando as&iacute; por v&iacute;a local, sin tener que aumentar el aporte de f&aacute;rmacos antiinflamatorios y m&oacute;rficos y, al mismo tiempo, evitar una t&eacute;cnica analg&eacute;sica locorregional m&aacute;s invasiva.</font></p>     <p><font face="Verdana" size="2">La aplicaci&oacute;n t&oacute;pica del parche de lidoca&iacute;na alivia el dolor neurop&aacute;tico reduciendo las descargas ect&oacute;picas en los nervios superficiales del &aacute;rea donde se localiza el dolor, sin producir anestesia en la piel que se encuentra bajo el parche. Esto sugiere que se produce una reducci&oacute;n de las se&ntilde;ales de descarga provenientes de los nociceptores de los tejidos da&ntilde;ados, pero no un bloqueo de las fibras sensitivas mielinizadas (5).</font></p>     <p><font face="Verdana" size="2">Seg&uacute;n estudios realizados en sujetos sanos, se postula que, tras la aplicaci&oacute;n del parche de lidoca&iacute;na 5 %, se produce un bloqueo, de forma selectiva e incompleta, de los canales de sodio de las peque&ntilde;as fibras nerviosas perif&eacute;ricas (fibras C no mielinizadas y peque&ntilde;as fibras mielinizadas A&delta;), pero que, dada su escasa absorci&oacute;n, no se bloquean las fibras mielinizadas m&aacute;s gruesas tipo A&beta; (6).</font></p>     <p><font face="Verdana" size="2">En el caso del dolor postoracotom&iacute;a, la lesi&oacute;n de los nervios intercostales juega un papel importante en la g&eacute;nesis del dolor agudo (7). La acci&oacute;n del parche de lidoca&iacute;na a este nivel parece el mecanismo m&aacute;s probable en nuestros casos, dada su baja absorci&oacute;n sist&eacute;mica cuando se utiliza en las dosis recomendadas.</font></p>     <p><font face="Verdana" size="2">La lidoca&iacute;na proveniente del parche pasa al torrente circulatorio alcanzando una concentraci&oacute;n pico media en sangre por debajo de su umbral antiarr&iacute;tmico; su vida media de eliminaci&oacute;n es de 7,6 horas y no se produce acumulaci&oacute;n tras su uso continuado. Sus principales efectos secundarios son locales y no se han descrito interacciones farmacol&oacute;gicas, aunque se recomienda evitar su uso en pacientes que reciben antiarr&iacute;timicos de la clase I y en pacientes con disfunci&oacute;n hep&aacute;tica severa (8).</font></p>     <p><font face="Verdana" size="2">El parche de lidoca&iacute;na es efectivo en el dolor espont&aacute;neo y en la alodinia mec&aacute;nica de la neuralgia postherp&eacute;tica, siendo esta &uacute;ltima la &uacute;nica indicaci&oacute;n registrada del f&aacute;rmaco (9). Sin embargo, se ha estudiado en otras indicaciones, tales como: dolor neurop&aacute;tico perif&eacute;rico (10,11), s&iacute;ndrome de dolor regional complejo (12), dolor neurop&aacute;tico por c&aacute;ncer (13), dolor postquir&uacute;rgico agudo (14-16), dolor cr&oacute;nico (17) e, incluso, como tratamiento analg&eacute;sico preventivo del dolor en el preoperatorio (18).</font></p>     <p><font face="Verdana" size="2">En pacientes con c&aacute;ncer y dolor en la pared costal, el parche de lidoca&iacute;na fue efectivo para el tratamiento del dolor neurop&aacute;tico con alodinia, independientemente de que &eacute;ste fuera debido a cicatrices dolorosas post-toracotom&iacute;a, post-mastectom&iacute;a o por el tumor en s&iacute; mismo (19). Algunos autores han sugerido que el parche de lidoca&iacute;na resulta beneficioso cuando el plexo nervioso se encuentra a menos de 3 cm de la piel y en una regi&oacute;n accesible a la terapia transd&eacute;rmica (12), lo que lo har&iacute;a ideal para dolores de la caja tor&aacute;cica.</font></p>     ]]></body>
<body><![CDATA[<p><font face="Verdana" size="2">Aunque un reciente metan&aacute;lisis no encontr&oacute; utilidad del parche de lidoca&iacute;na para el manejo del dolor agudo post-quir&uacute;rgico, el bajo n&uacute;mero de pacientes, la heterogeneidad entre estudios y otros sesgos potenciales constituyeron una importante limitaci&oacute;n al nivel de evidencia (20). Los resultados obtenidos en nuestros pacientes nos permiten sugerir el uso del parche de lidoca&iacute;na al 5 % como una alternativa terap&eacute;utica sencilla en aquellos pacientes con dolor agudo postoracotom&iacute;a refractario al tratamiento habitual. Nuestros resultados, sin embargo, deber&aacute;n confirmarse mediante un ensayo cl&iacute;nico.</font></p>     <p>&nbsp;</p>     <p><font face="Verdana" size="2"><b>Bibliograf&iacute;a</b></font></p>     <!-- ref --><p><font face="Verdana" size="2">1. Gerner P. Post-thoracotomy pain management problems. Anesthesiol Clin 2008;26:355-67. 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Curr Med Res Opin 2014;7:1-18.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4929897&pid=S1134-8046201600020000400020&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     <p>&nbsp;</p>     <p>&nbsp;</p>     <p><font face="Verdana" size="2"><a href="#top"><img border="0" src="/img/revistas/dolor/v23n2/seta.gif" width="15" height="17"></a><a name="bajo"></a><b>Direcci&oacute;n para correspondencia:</b>    <br>Daniel S&aacute;nchez    <br><a href="mailto:desapo2003@yahoo.com">desapo2003@yahoo.com</a></font></p>     <p><font face="Verdana" size="2">Conflicto de intereses/Financiaci&oacute;n: Ninguno.</font></p>     <p><font face="Verdana" size="2">Recibido: 2-1-15.    ]]></body>
<body><![CDATA[<br>Aceptado: 15-4-15.</font></p>      ]]></body><back>
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