<?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>1688-1249</journal-id>
<journal-title><![CDATA[Archivos de Pediatría del Uruguay]]></journal-title>
<abbrev-journal-title><![CDATA[Arch. Pediatr. Urug.]]></abbrev-journal-title>
<issn>1688-1249</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Uruguaya de Pediatría]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1688-12492010000200004</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Migraña hemipléjica esporádica: a propósito de un caso clínico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Medici]]></surname>
<given-names><![CDATA[Conrado]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fraga]]></surname>
<given-names><![CDATA[Valeria]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rey]]></surname>
<given-names><![CDATA[Andrea]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Scavone]]></surname>
<given-names><![CDATA[Cristina]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad de la República (UDELAR) Facultad de Medicina Cátedra de Neuropediatría]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2010</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2010</year>
</pub-date>
<volume>81</volume>
<numero>2</numero>
<fpage>87</fpage>
<lpage>90</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_arttext&amp;pid=S1688-12492010000200004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_abstract&amp;pid=S1688-12492010000200004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_pdf&amp;pid=S1688-12492010000200004&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Las cefaleas constituyen una causa frecuente de consulta en pediatría, siendo la migraña el tipo más frecuente de cefalea primaria en la infancia. La migraña hemipléjica (MH) es una variante infrecuente de migraña con aura, reconociéndose dos subtipos: familiar (MHF) y esporádica (MHE). Se caracteriza por la presencia de crisis migrañosas con trastornos motores deficitarios transitorios, afasia o alteraciones sensitivas o sensoriales. Describimos el caso de una niña de 9 años, sana, sin antecedentes familiares de MH, con una historia de cefaleas migrañosas de 3 años de evolución, que cumple con los criterios establecidos por la International Headache Society de MHE. El examen neurológico fuera de los episodios y los exámenes complementarios fueron normales. Se realizó tratamiento profiláctico con topiramato con buena evolución.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Headache is a frequent cause of pediatric medical consultation, migraine is the most frecuent child primary headache. Hemiplegic migraine (HM) is a rare subtype of migraine with aura headache, it has two variants: familial (FHM) and sporadic (SHM). It presents with migraine attacks associated with some degree of transient hemiparesia, dysphasic speech or sensitive or sensorial symptoms. We describe a 9 years old girl, healthy, without familial history of HM, with 3 years evolution of migraine headaches that fulfill the International Headache Society`s criteria for SHM. The neurologic examination and laboratory tests were normal. We started prophylaxis treatment with topiramate with good evolution.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[CEFALEA]]></kwd>
<kwd lng="es"><![CDATA[CEFALEAS PRIMARIAS]]></kwd>
<kwd lng="es"><![CDATA[TRASTORNOS MIGRAÑOSOS]]></kwd>
<kwd lng="es"><![CDATA[MIGRAÑA CON AURA]]></kwd>
<kwd lng="en"><![CDATA[HEADACHE]]></kwd>
<kwd lng="en"><![CDATA[HEADACHE DISORDERS, PRIMARY]]></kwd>
<kwd lng="en"><![CDATA[MIGRAINE DISORDERS]]></kwd>
<kwd lng="en"><![CDATA[MIGRAINE, WITH AURA]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[   <basefont size="3"> <multicol gutter="18" cols="2"></multicol>     <p align="left"><font color="#000000" face="Verdana" size="2"><b>CASO CL&Iacute;NICO</b></font></p>      <p align="left">&nbsp;</p>      <p align="left"><b><font color="#1f1a17" face="Verdana" size="4">Migra&ntilde;a hemipl&eacute;jica espor&aacute;dica:     <br>  </font><font color="#1f1a17" face="Verdana">a prop&oacute;sito de un caso cl&iacute;nico </font> </b></p>      <p align="left"><font color="#1f1a17" face="Verdana" size="2"><a name="1-"></a> Dres. Conrado Medici</font><font color="#1f1a17" face="Times New Roman" size="2"><a href="#1_"><font color="#1f1a17" face="Verdana"><sup>1</sup></font></a><font color="#1f1a17" face="Verdana" size="2">, <a name="2-"></a>Valeria Fraga </font><a href="#2_"> <font color="#1f1a17" face="Verdana"><sup>2</sup></font></a><font color="#1f1a17" face="Verdana" size="2">, <a name="3-"></a>Andrea Rey </font><a href="#3_"> <font color="#1f1a17" face="Verdana"><sup>3</sup></font></a><font color="#1f1a17" face="Verdana" size="2">,<a name="4-"></a> Cristina Scavone </font><a href="#4_"> <font color="#1f1a17" face="Verdana"><sup>4</sup></font></a></font><font color="#1f1a17" face="Verdana" size="2"> </font></p>      <p><font color="#1f1a17" face="Verdana" size="2"><a name="1_"></a><a href="#1-">1</a>. Residente de Neuropediatr&iacute;a    <br>  <a name="2_"></a><a href="#2-">2</a>. Asistente de Neuropediatr&iacute;a.    <br>  <a name="3_"></a><a href="#3-">3</a>. Profesora adjunta de Neuropediatr&iacute;a.    <br>  <a name="4_"></a><a href="#4-">4</a>. Profesora de Neuropediatr&iacute;a.    ]]></body>
<body><![CDATA[<br>  C&aacute;tedra de Neuropediatr&iacute;a, Facultad de Medicina, Universidad de la Rep&uacute;blica. Centro Hospitalario Pereira Rossell.    <br>  Fecha recibido: 23 de marzo de 2010.    <br>  Fecha aprobado: 29 de julio de 2010. </font></p>      <p><font face="Verdana" size="2">    <br>  </font>  </p>      <p align="left"><font color="#1f1a17" face="Verdana" size="2"> Resumen </font></p>      <p align="left"><font color="#1f1a17" face="Verdana" size="2"> <i>Las cefaleas constituyen una causa frecuente de consulta en pediatr&iacute;a, siendo la migra&ntilde;a el tipo m&aacute;s frecuente de cefalea primaria en la infancia. La migra&ntilde;a hemipl&eacute;jica (MH) es una variante infrecuente de migra&ntilde;a con aura, reconoci&eacute;ndose dos subtipos: familiar (MHF) y espor&aacute;dica (MHE). Se caracteriza por la presencia de crisis migra&ntilde;osas con trastornos motores deficitarios transitorios, afasia o alteraciones sensitivas o sensoriales. Describimos el caso de una ni&ntilde;a de 9 a&ntilde;os, sana, sin antecedentes familiares de MH, con una historia de cefaleas migra&ntilde;osas de 3 a&ntilde;os de evoluci&oacute;n, que cumple con los criterios establecidos por la International Headache Society de MHE. El examen neurol&oacute;gico fuera de los episodios y los ex&aacute;menes complementarios fueron normales. Se realiz&oacute; tratamiento profil&aacute;ctico con topiramato con buena evoluci&oacute;n.</i> </font></p>      <p align="left"><font color="#1f1a17" face="Swis721 Lt BT" size="2"> <font color="#000000" face="Verdana" size="2">Palabras clave:    <br>  &nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#1f1a17" face="Verdana" size="2">CEFALEA    <br>  &nbsp;&nbsp;&nbsp;&nbsp;CEFALEAS PRIMARIAS    ]]></body>
<body><![CDATA[<br>  &nbsp;&nbsp;&nbsp;&nbsp;TRASTORNOS MIGRA&Ntilde;OSOS    <br>  &nbsp;&nbsp;&nbsp;&nbsp;MIGRA&Ntilde;A CON AURA</font></font><font color="#1f1a17" face="Verdana" size="2"> </font></p>  <font face="Verdana" size="2">      <br>  </font>      <p align="left"><font color="#1f1a17" face="Verdana" size="2"> Summary </font></p>      <p align="left"><font color="#1f1a17" face="Verdana" size="2"> <i>Headache is a frequent cause of pediatric medical consultation, migraine is the most frecuent child primary headache. Hemiplegic migraine (HM) is a rare subtype of migraine with aura headache, it has two variants: familial (FHM) and sporadic (SHM). It presents with migraine attacks associated with some degree of transient hemiparesia, dysphasic speech or sensitive or sensorial symptoms. We describe a 9 years old girl, healthy, without familial history of HM, with 3 years evolution of migraine headaches that fulfill the International Headache Society`s criteria for SHM. The neurologic examination and laboratory tests were normal. We started prophylaxis treatment with topiramate with good evolution.    <br>      <br>      <br>  </i> </font></p>      <p align="left"><font color="#1f1a17" face="Swis721 Lt BT" size="2"> <font color="#000000" face="Verdana" size="2">Keywords:    <br>  &nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#1f1a17" face="Verdana" size="2">HEADACHE    ]]></body>
<body><![CDATA[<br>  &nbsp;&nbsp;&nbsp;&nbsp;HEADACHE DISORDERS, PRIMARY    <br>  &nbsp;&nbsp;&nbsp;&nbsp;MIGRAINE DISORDERS    <br>  &nbsp;&nbsp;&nbsp;&nbsp;MIGRAINE, WITH AURA</font></font><font color="#1f1a17" face="Verdana" size="2"> </font></p>  <font face="Verdana" size="2">      <br>  </font>  <multicol gutter="18" cols="2"></multicol>     <p align="left"><font color="#1f1a17" face="Verdana" size="2">Introducci&oacute;n </font></p>      <p align="left"><font color="#1f1a17" face="Verdana" size="2"> Las cefaleas constituyen un s&iacute;ntoma de consulta frecuente en pediatr&iacute;a, provocando ansiedad en el paciente y en el grupo familiar y determinando consultas tanto en emergencia como en policl&iacute;nica. </font></p>      <p align="left"><font color="#1f1a17" face="Verdana" size="2"> En trabajos realizados en poblaci&oacute;n pedi&aacute;trica se encuentra que hasta un 70%-90% de los ni&ntilde;os han presentado alg&uacute;n episodio de cefalea antes de los 15 a&ntilde;os </font><font color="#1f1a17" face="Times New Roman" size="2"> <font color="#1f1a17" face="Verdana"><sup>(<a name="1.."></a><a href="#1">1</a>,<a name="2.."></a><a href="#2">2</a>)</sup></font><font color="#1f1a17" face="Verdana" size="2">. En Uruguay las cefaleas correspondieron al 0,58% de las consultas en el departamento de emergencia del Centro Hospitalario Pereira Rossell (CHPR) en el per&iacute;odo 2002-2003 </font><font color="#1f1a17" face="Verdana"><sup>(<a name="3.."></a><a href="#3">3</a>)</sup></font><font color="#1f1a17" face="Verdana" size="2">.</font></font><font color="#1f1a17" face="Verdana" size="2"> </font></p>      <p align="left"><font color="#1f1a17" face="Verdana" size="2"> La migra&ntilde;a es el tipo m&aacute;s frecuente de cefalea primaria en la infancia, su incidencia aumenta con la edad, siendo m&aacute;s frecuente en varones por debajo de los 12 a&ntilde;os y en ni&ntilde;as por encima de esta edad </font><font color="#1f1a17" face="Times New Roman" size="2"> <font color="#1f1a17" face="Verdana"><sup>(<a name="4.."></a><a href="#4">4</a>)</sup></font><font color="#1f1a17" face="Verdana" size="2">. La International Headache Society en su segunda edici&oacute;n, primera revisi&oacute;n (mayo de 2005) de la clasificaci&oacute;n de las cefaleas, International Classification of Headache Disorders (ICHD) </font><font color="#1f1a17" face="Verdana"><sup>(<a name="5.."></a><a href="#5">5</a>)</sup></font><font color="#1f1a17" face="Verdana" size="2">, clasifica a la migra&ntilde;a en diferentes tipos como muestra la<a href="/img/revistas/adp/v81n2/2a04t1.GIF"> </a><a href="#tabla_1">tabla 1</a>.</font></font></p>      <p align="left"><font color="#1f1a17" face="Verdana" size="2"><a name="tabla_1"></a><img style="width: 281px; height: 332px;" alt="" src="/img/revistas/adp/v81n2/2a04t1.GIF"></font></p>      <p align="left"><font color="#1f1a17" face="Verdana" size="2">La MH es una variante infrecuente de migra&ntilde;a con aura. Hay dos subtipos: migra&ntilde;a hemipl&eacute;jica familiar (MHF) y migra&ntilde;a hemipl&eacute;jica espor&aacute;dica (MHE). La <a href="#tabla_2">tabla 2</a> muestra los criterios diagn&oacute;sticos de la ICHD de MHF y MHE.</font></p>      ]]></body>
<body><![CDATA[<p align="left"><font color="#1f1a17" face="Verdana" size="2"><a name="tabla_2"></a><img style="width: 280px; height: 429px;" alt="" src="/img/revistas/adp/v81n2/2a04t2.GIF">    <br>  </font></p>      <p align="left"><font color="#1f1a17" face="Verdana" size="2">En un estudio epidemiol&oacute;gico realizado en Dinamarca se encontr&oacute; una prevalencia de MH de 0,01% en una poblaci&oacute;n de 5,2 millones de habitantes, no existiendo diferencias entre MHE y MHF </font><font color="#1f1a17" face="Times New Roman" size="2">  <font color="#1f1a17" face="Verdana"><sup>(<a name="6.."></a><a href="#6">6</a>)</sup></font><font color="#1f1a17" face="Verdana" size="2">.</font></font><font color="#1f1a17" face="Verdana" size="2"> </font></p>      <p align="left"><font color="#1f1a17" face="Verdana" size="2"> No existe diferencia en la presentaci&oacute;n cl&iacute;nica entre ambas variedades. Se han descrito alteraciones en la resonancia nuclear magn&eacute;tica, en algunos casos, principalmente a nivel de la espectroscopia </font><font color="#1f1a17" face="Times New Roman" size="2"> <font color="#1f1a17" face="Verdana"><sup>(<a name="7.."></a><a href="#7">7</a>)</sup></font><font color="#1f1a17" face="Verdana" size="2">.</font></font><font color="#1f1a17" face="Verdana" size="2"> </font></p>      <p align="left">&nbsp;</p>      <p align="left"><font color="#1f1a17" face="Verdana" size="2"> Observaci&oacute;n cl&iacute;nica </font></p>      <p align="left"><font color="#1f1a17" face="Verdana" size="2"> Ni&ntilde;a de 9 a&ntilde;os, procedente de Canelones, sana, buen crecimiento y desarrollo, buen rendimiento escolar. Sin antecedentes familiares de primera o segunda l&iacute;nea de MH, ni de otra patolog&iacute;a neurol&oacute;gica. </font></p>      <p align="left"><font color="#1f1a17" face="Verdana" size="2"> Comienza a los 6 a&ntilde;os con cefaleas frontales bilaterales, puls&aacute;tiles, de intensidad variable, 1 a 2 veces por semana, de m&aacute;s de una hora de duraci&oacute;n, que calman con analg&eacute;sicos y con el sue&ntilde;o, acompa&ntilde;adas de decaimiento, palidez, fotofobia y v&oacute;mitos. En alguna oportunidad previo al inicio de las cefaleas refiere parestesias de mano izquierda. </font></p>      <p align="left"><font color="#1f1a17" face="Verdana" size="2"> En dos oportunidades, a los 6 a&ntilde;os, presenta episodios que comienzan con parestesias e hipoestesias de hemicuerpo izquierdo, seguidas de paresia de dicho hemicuerpo y dentro de los 60 minutos posteriores instala en forma paulatina una cefalea de intensidad severa. El primer episodio tiene una duraci&oacute;n de 2 horas hasta el retroceso completo de los s&iacute;ntomas, y el segundo episodio 4 horas. El d&iacute;a posterior presenta somnolencia. En ambos episodios presenta un examen f&iacute;sico normal al momento de la consulta, luego de finalizados los mismos. </font></p>      <p align="left"><font color="#1f1a17" face="Verdana" size="2"> En el segundo episodio se decide internaci&oacute;n donde se realiza tomograf&iacute;a computada y resonancia magn&eacute;tica de cr&aacute;neo con angiorresonancia siendo ambos normales. </font></p>      ]]></body>
<body><![CDATA[<p align="left"><font color="#1f1a17" face="Verdana" size="2"> Con diagn&oacute;stico de MH se inicia tratamiento preventivo con topiramato a 1,25 mg/kg/d&iacute;a, en dos tomas diarias, presentando buena evoluci&oacute;n con reducci&oacute;n de m&aacute;s del 50% de frecuencia de los episodios. La cefalea es de menor intensidad y duraci&oacute;n y no reitera episodios de hemiplejia. No se presentaron efectos adversos al f&aacute;rmaco. </font></p>      <p align="left"><font color="#1f1a17" face="Verdana" size="2"> Discusi&oacute;n </font></p>      <p align="left"><font color="#1f1a17" face="Verdana" size="2"> La paciente presenta un cuadro cl&iacute;nico que cumple con los criterios diagn&oacute;sticos de MH. Por no presentar antecedentes familiares de MH, se diagnostica MHE. </font></p>      <p align="left"><font color="#1f1a17" face="Verdana" size="2"> La primera descripci&oacute;n reportada sobre la presencia de paresia transitoria durante un episodio de migra&ntilde;a fue realizada por Liveing en 1873 </font><font color="#1f1a17" face="Times New Roman" size="2"> <font color="#1f1a17" face="Verdana"><sup>(<a name="8.."></a><a href="#8">8</a>)</sup></font><font color="#1f1a17" face="Verdana" size="2">.</font></font><font color="#1f1a17" face="Verdana" size="2"> </font></p>      <p align="left"><font color="#1f1a17" face="Verdana" size="2"> Reci&eacute;n en el a&ntilde;o 2004, en la segunda edici&oacute;n de la clasificaci&oacute;n de las cefaleas, la ICHD incluye los criterios diagn&oacute;sticos independientes de la MHE </font><font color="#1f1a17" face="Times New Roman" size="2"> <font color="#1f1a17" face="Verdana"><sup>(<a name="9.."></a><a href="#9">9</a>)</sup></font><font color="#1f1a17" face="Verdana" size="2">.</font></font><font color="#1f1a17" face="Verdana" size="2"> </font></p>      <p align="left"><font color="#1f1a17" face="Verdana" size="2"> La MHF es una canalopat&iacute;a con mutaciones gen&eacute;ticas conocidas </font><font color="#1f1a17" face="Times New Roman" size="2"> <font color="#1f1a17" face="Verdana"><sup>(<a href="#8">8</a>)</sup></font><font color="#1f1a17" face="Verdana" size="2">: tipo 1 enfermedad autos&oacute;mica dominante por mutaci&oacute;n del gen CACNA1A para el canal del calcio, a nivel 19p13; la tipo 2 por alteraci&oacute;n del gen ATP1A2 de la bomba sodio-potasio, en 1q21 a 23; la tipo 3 por mutaci&oacute;n del gen de canal de sodio SCN1A </font> <font color="#1f1a17" face="Verdana"><sup>(<a name="10.."></a><a href="#10">10</a>)</sup></font><font color="#1f1a17" face="Verdana" size="2">. En un porcentaje peque&ntilde;o de pacientes con MHE se han encontrado variantes de estos tres genes </font><font color="#1f1a17" face="Verdana"><sup>(<a name="11.."></a><a href="#11">11</a>,<a name="12.."></a><a href="#12">12</a>)</sup></font><font color="#1f1a17" face="Verdana" size="2">.</font></font><font color="#1f1a17" face="Verdana" size="2"> </font></p>  <multicol gutter="18" cols="2"></multicol>     <p align="left"><font color="#1f1a17" face="Verdana" size="2">Como en todas las cefaleas, una correcta historia y un examen f&iacute;sico adecuado son la clave para el diagn&oacute;stico.</font></p>      <p align="left"><font color="#1f1a17" face="Verdana" size="2"><a name="tabla_3"></a><img style="width: 280px; height: 370px;" alt="" src="/img/revistas/adp/v81n2/2a04t3.GIF"></font></p>      <p align="left"><font color="#1f1a17" face="Verdana" size="2"> La <a href="#tabla_3">tabla 3</a> muestra los diagn&oacute;sticos diferenciales a considerar; el accidente cerebrovascular y las crisis epil&eacute;pticas son los principales. La reversibilidad de la sintomatolog&iacute;a y en este caso una angiorresonancia magn&eacute;tica normal descarta la presencia de un accidente cerebrovascular y si bien el gold standard para el estudio de las malformaciones vasculares es la arteriograf&iacute;a, la resonancia con angiograf&iacute;a es una herramienta diagn&oacute;stica &uacute;til y no invasiva </font><font color="#1f1a17" face="Times New Roman" size="2"> <font color="#1f1a17" face="Verdana"><sup>(<a name="13.."></a><a href="#13">13</a>)</sup></font><font color="#1f1a17" face="Verdana" size="2">. Las crisis epil&eacute;pticas somatosensitivas pueden acompa&ntilde;arse de una par&aacute;lisis de Todd, que es de duraci&oacute;n variable, pero la sintomatolog&iacute;a motora es generalmente ostensible y referida claramente. La cefalea se presenta como un fen&oacute;meno poscr&iacute;tico. En la MH se han reportado cambios en el electroencefalograma durante los ataques, como ser una depresi&oacute;n en la actividad contralateral al lado de la paresia </font><font color="#1f1a17" face="Verdana"><sup>(<a name="14.."></a><a href="#14">14</a>)</sup></font><font color="#1f1a17" face="Verdana" size="2">.</font></font></p>      <p align="left"><font color="#1f1a17" face="Verdana" size="2">Respecto al tratamiento, los simpaticomim&eacute;ticos como los derivados ergotam&iacute;nicos y los tript&oacute;fanos est&aacute;n contraindicados en la migra&ntilde;a hemipl&eacute;jica </font><font color="#1f1a17" face="Times New Roman" size="2">  <font color="#1f1a17" face="Verdana"><sup>(<a href="#8">8</a>)</sup></font><font color="#1f1a17" face="Verdana" size="2"> por el riesgo de vasoespasmo que puede determinar infarto cerebral. Los betabloqueantes no est&aacute;n indicados como tratamiento profil&aacute;ctico de la MH por el riesgo de prolongar el aura o de producir un infarto migra&ntilde;oso </font><font color="#1f1a17" face="Verdana"><sup>(<a name="15.."></a><a href="#15">15</a>)</sup></font><font color="#1f1a17" face="Verdana" size="2">. Existen reportes en la literatura de buena respuesta en las MHE al tratamiento profil&aacute;ctico con verapamil </font><font color="#1f1a17" face="Verdana"><sup>(<a name="16.."></a><a href="#16">16</a>)</sup></font><font color="#1f1a17" face="Verdana" size="2">, flunarizina </font> <font color="#1f1a17" face="Verdana"><sup>(<a name="17.."></a><a href="#17">17</a>)</sup></font><font color="#1f1a17" face="Verdana" size="2"> y naloxona </font> <font color="#1f1a17" face="Verdana"><sup>(<a name="18.."></a><a href="#18">18</a>)</sup></font><font color="#1f1a17" face="Verdana" size="2">. En la MHF la acetazolamida ha mostrado eficacia en el control de las crisis </font> <font color="#1f1a17" face="Verdana"><sup>(<a name="19.."></a><a href="#19">19</a>)</sup></font><font color="#1f1a17" face="Verdana" size="2">.</font></font><font color="#1f1a17" face="Verdana" size="2"> </font></p>      ]]></body>
<body><![CDATA[<p align="left"><font color="#1f1a17" face="Verdana" size="2"> El topiramato; f&aacute;rmaco antiepil&eacute;ptico con un mecanismo de acci&oacute;n multimodal que incluye bloqueo de los canales de sodio, aumento de la actividad inhibitoria del &aacute;cido gamma-aminobut&iacute;rico (GABA), antagonista de los receptores del glutamato e inhibidor de la anhidrasa carb&oacute;nica; ha demostrado ser eficaz y con escasos efectos adversos como tratamiento profil&aacute;ctico de la migra&ntilde;a en edad pedi&aacute;trica </font><font color="#1f1a17" face="Times New Roman" size="2"> <font color="#1f1a17" face="Verdana"><sup>(<a name="20.."></a><a href="#20">20</a>)</sup></font><font color="#1f1a17" face="Verdana" size="2">.</font></font><font color="#1f1a17" face="Verdana" size="2"> </font></p>      <p align="left"><font color="#1f1a17" face="Verdana" size="2"> Existe escasa bibliograf&iacute;a respecto al uso de este f&aacute;rmaco en la MH, tanto familiar como espor&aacute;dica, habiendo alg&uacute;n reporte de agravamiento de la sintomatolog&iacute;a con este f&aacute;rmaco </font><font color="#1f1a17" face="Times New Roman" size="2"> <font color="#1f1a17" face="Verdana"><sup>(<a name="21.."></a><a href="#21">21</a>)</sup></font><font color="#1f1a17" face="Verdana" size="2">.</font></font><font color="#1f1a17" face="Verdana" size="2"> </font></p>      <p align="left"><font color="#1f1a17" face="Verdana" size="2"> En nuestra paciente consideramos que el tratamiento fue efectivo ya que a 12 meses de seguimiento disminuy&oacute; el n&uacute;mero de crisis en m&aacute;s de un 50%, no reiter&oacute; episodios de MH y no se evidenciaron efectos adversos del f&aacute;rmaco. </font></p>  <multicol gutter="18" cols="2"></multicol>     <p align="left"><font color="#1f1a17" face="Verdana" size="2">Referencias bibliogr&aacute;ficas </font></p>      <!-- ref --><p align="left"><font color="#1f1a17" face="Verdana" size="2"><a name="1"></a><a href="#1.."> 1</a>.&nbsp;&nbsp;&nbsp;&nbsp;<b>Quintana Prada MR. </b>Cefaleas. En: Asociaci&oacute;n Espa&ntilde;ola de Pediatr&iacute;a. Protocolos de Urgencias. Madrid: AEP, 2008: 337-47. Disponible en: <a href="http://www.aeped.es">http://www.aeped.es</a> [consulta: 25 set. 2009].     </font></p>      <!-- ref --><p align="left"><font color="#1f1a17" face="Verdana" size="2"><a name="2"></a> <a href="#2..">2</a>.&nbsp;&nbsp;&nbsp;&nbsp;<b>Rothner AD.</b> Headaches in children and adolescents: classification and recomendation. Postgrad Med 1987; 81(8): 223-30.     </font></p>      <!-- ref --><p align="left"><font color="#1f1a17" face="Verdana" size="2"><a name="3"></a> <a href="#3..">3</a>.&nbsp;&nbsp;&nbsp;&nbsp;<b>Leon A, Gonzalez G, Alonso M.</b> An&aacute;lisis etiol&oacute;gico de las cefaleas desde un servicio de emergencia pedi&aacute;trica. Rev Neurol 2004; 39(3): 217-21.     </font></p>      ]]></body>
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