<?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>0121-0793</journal-id>
<journal-title><![CDATA[Iatreia]]></journal-title>
<abbrev-journal-title><![CDATA[Iatreia]]></abbrev-journal-title>
<issn>0121-0793</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Antioquia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0121-07932009000200008</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Guía de práctica clínica basada en la evidencia para el diagnóstico de disfagia en niños]]></article-title>
<article-title xml:lang="en"><![CDATA[Evidence-based practice guidelines for the diagnosis of dysphagia in children]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Henao Mejía]]></surname>
<given-names><![CDATA[Paula Andrea]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lopera Cañaveral]]></surname>
<given-names><![CDATA[María Victoria]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Salazar Blanco]]></surname>
<given-names><![CDATA[Olga Francisca]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Medina Piedrahíta]]></surname>
<given-names><![CDATA[Paula Andrea]]></given-names>
</name>
<xref ref-type="aff" rid="A03"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Morales Múnera]]></surname>
<given-names><![CDATA[Olga Lucía]]></given-names>
</name>
<xref ref-type="aff" rid="A04"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad de Antioquia  ]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Universidad de Antioquia Facultad de Medicina Departamento de Pediatría]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="A03">
<institution><![CDATA[,Universidad de Antioquia Facultad de Medicina ]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="A04">
<institution><![CDATA[,Hospital Universitario San Vicente de Paúl  ]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2009</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2009</year>
</pub-date>
<volume>22</volume>
<numero>2</numero>
<fpage>169</fpage>
<lpage>179</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0121-07932009000200008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0121-07932009000200008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0121-07932009000200008&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Se presenta una guía basada en la evidencia para el diagnóstico de disfagia en niños. Se llevó a cabo una búsqueda de artículos indexados entre enero de 1996 y diciembre de 2007 en las bases de datos Medline, Lilacs y el registro Cochrane. Se hizo restricción por idioma a publicaciones en inglés y español y, por edad, solo se incluyó a la población pediátrica. Se complementó la exploración con artículos incluidos en la bibliografía de artículos primarios y citados en revisiones no sistemáticas. La estrategia de búsqueda produjo 605 artículos de los cuales se seleccionaron 58. El análisis de la validez de los artículos y el grado de recomendación se hicieron por consenso entre los investigadores. El desarrollo de la guía se basó en el instrumento AGREE (Appraisal of Guidelines Research and Evaluation) y en el modelo GRADE del Colegio Americano de Médicos del Tórax (Grading Strength of Recommendations and Quality of Evidence in Clinical Guidelines). El enfoque diagnóstico del niño con disfagia debe partir de la sospecha clínica. La anamnesis y el examen físico deben preceder a cualquier actividad diagnóstica. Se encontró que en niños con alta sospecha clínica de disfagia debe complementarse la evaluación clínica con la videofluoroscopia (Recomendación 1C), que es el estándar de oro para confirmar la presencia de aspiración o penetración de la vía aérea (Recomendación 1A). El ultrasonido es el método de elección en niños con disfagia asociada a anormalidades de la lengua. (Recomendación 1C). La electromiografía se puede utilizar como una prueba de tamizaje para niños mayores de cinco años con alteración de la musculatura facial (Recomendación 2B). La resonancia magnética nuclear es útil en pacientes con sospecha de lesiones cervicales que alteran la dinámica de la deglución (Recomendación 1C). Se concluye que los estudios diagnósticos disponibles tienen deficiencias metodológicas que no permiten hacer recomendaciones de mayor grado de validez.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[We present an evidence-based guideline for the diagnosis of dysphagia in children. The articles included were retrieved by electronic search in Medline, Lilacs, and Cochrane databases. The search was restricted to those published between January 1996 and December 2007, in English or Spanish, and only to those including children (0-18 years). Manual search of papers cited by primary articles and non-systematic reviews was also done. The search strategy identified 605 articles and 58 were chosen for further analysis. Evaluation of the papers was carried out by all the authors and recommendations were done by consensus. The guideline was developed by using the AGREE instrument (Appraisal of Guidelines Research and Evaluation) and the GRADE model (Grading Strength of Recommendations and Quality of Evidence in Clinical Guidelines) from the American College of Chest Physicians. The diagnostic approach to children with dysphagia begins with clinical suspicion, and thorough clinical history and physical examination should precede any diagnostic test. We found that in children with clinical features that suggest dysphagia, videofluoroscopy is the recommended imaging technique to confirm this condition (Recommendation 1C). This test is considered to be the gold standard to demonstrate aspiration and/or penetration of contrast material into the airway (Recommendation 1A). Ultrasound is considered as the best diagnostic imaging technique in children with dysphagia associated with tongue abnormalities (Recommendation 1C). On the other hand, electromyography might be used as a screening test in children aged 5 years or more with disorders of the facial muscles (Recommendation 2B). Finally, magnetic resonance imaging seems to provide the best diagnostic yield in those children with cervical lesions responsible for disrupting deglutition dynamics (Recommendation 1C). In conclusion, available articles on diagnostic tests for dysphagia have serious methodological deficiencies and do not allow recommendations with better levels of evidence.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Disfagia]]></kwd>
<kwd lng="es"><![CDATA[Evaluación clínica]]></kwd>
<kwd lng="es"><![CDATA[Guías clínicas]]></kwd>
<kwd lng="es"><![CDATA[Trastorno de la deglución]]></kwd>
<kwd lng="es"><![CDATA[Videofluoroscopia]]></kwd>
<kwd lng="en"><![CDATA[Dysphagia]]></kwd>
<kwd lng="en"><![CDATA[Clinical evaluation]]></kwd>
<kwd lng="en"><![CDATA[Clinical guidelines]]></kwd>
<kwd lng="en"><![CDATA[Swallowing disorders]]></kwd>
<kwd lng="en"><![CDATA[Videofluoroscopy]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="right"><strong><font size="2">ART&Iacute;CULO DE REVISI&Oacute;N</font></strong></p>     <p><strong><font size="4">Gu&iacute;a de pr&aacute;ctica cl&iacute;nica basada         en la evidencia para el     diagn&oacute;stico de disfagia en ni&ntilde;os</font></strong> </p>     <p><strong><font size="3">Evidence&#8211;based practice guidelines for the diagnosis of dysphagia in children</font></strong></p>     <p>&nbsp;</p>     <p><font size="2"><strong>Paula Andrea Henao Mej&iacute;a<sup>1</sup>; Mar&iacute;a Victoria Lopera         Ca&ntilde;averal<suP>1</suP>;       Olga Francisca Salazar Blanco<sup>2</sup>;     Paula Andrea Medina Piedrah&iacute;ta<sup>3</sup>; Olga Luc&iacute;a Morales M&uacute;nera<sup>4</sup></strong></font></p>     <p><font size="2"><strong>1. </strong>Pediatra, Universidad de Antioquia, Medell&iacute;n,     Colombia.    <br>     <strong>2.</strong> Profesora asociada, Departamento de Pediatr&iacute;a,     Facultad de Medicina, Universidad de Antioquia, Medell&iacute;n, Colombia.    <br>     <strong>3.</strong> M&eacute;dica interna, Facultad de Medicina, Universidad     de Antioquia, Medell&iacute;n, Colombia.    <br>     <strong>4.</strong> Profesora de Neumolog&iacute;a, Hospital Universitario     San Vicente de Pa&uacute;l,   Medell&iacute;n, Colombia.    <br>   Direcciones: <a href="mailto:phenaomejia@gmail.com">phenaomejia@gmail.com</a>, <a href="mailto:maviloca87@hotmail.com">maviloca87@hotmail.com</a>, <a href="mailto:olgasalas@une.net.co">olgasalas@une.net.co</a>, <a href="mailto:polimedina@gmail.com">polimedina@gmail.com</a>, <a href="mailto:olmunera@hotmail.com">olmunera@hotmail.com</a></font></p>     ]]></body>
<body><![CDATA[<p>&nbsp;</p> <hr size="1" noshade>     <p><strong><font size="2">Resumen</font></strong></p>     <p><font size="2"> Se presenta una gu&iacute;a basada en la evidencia para el diagn&oacute;stico   de disfagia en ni&ntilde;os. Se llev&oacute; a cabo   una b&uacute;squeda de art&iacute;culos indexados entre enero de 1996 y diciembre   de 2007 en las bases de datos   Medline, Lilacs y el registro Cochrane. Se hizo restricci&oacute;n por idioma   a publicaciones en ingl&eacute;s y   espa&ntilde;ol y, por edad, solo se incluy&oacute; a la poblaci&oacute;n pedi&aacute;trica.   Se complement&oacute; la exploraci&oacute;n con   art&iacute;culos incluidos en la bibliograf&iacute;a de art&iacute;culos primarios   y citados en revisiones no sistem&aacute;ticas. La   estrategia de b&uacute;squeda produjo 605 art&iacute;culos de los cuales se   seleccionaron 58. El an&aacute;lisis de la   validez de los art&iacute;culos y el grado de recomendaci&oacute;n se hicieron   por consenso entre los investigadores.   El desarrollo de la gu&iacute;a se bas&oacute; en el instrumento AGREE (Appraisal   of Guidelines Research and   Evaluation) y en el modelo GRADE del Colegio Americano de M&eacute;dicos del   T&oacute;rax (Grading Strength of Recommendations and Quality of Evidence in Clinical Guidelines).</font></p>     <p><font size="2"> El enfoque diagn&oacute;stico del ni&ntilde;o con disfagia debe partir de   la sospecha cl&iacute;nica. La anamnesis y el   examen f&iacute;sico deben preceder a cualquier actividad diagn&oacute;stica.   Se encontr&oacute; que en ni&ntilde;os con alta   sospecha cl&iacute;nica de disfagia debe complementarse la evaluaci&oacute;n   cl&iacute;nica con la videofluoroscopia    (Recomendaci&oacute;n 1C), que es el est&aacute;ndar de oro para confirmar   la presencia de aspiraci&oacute;n o   penetraci&oacute;n de la v&iacute;a a&eacute;rea (Recomendaci&oacute;n 1A).   El ultrasonido es el m&eacute;todo de elecci&oacute;n en ni&ntilde;os   con disfagia asociada a anormalidades de la lengua. (Recomendaci&oacute;n 1C).   La electromiograf&iacute;a se    puede utilizar como una prueba de tamizaje para ni&ntilde;os mayores de cinco   a&ntilde;os con alteraci&oacute;n de la   musculatura facial (Recomendaci&oacute;n 2B). La resonancia magn&eacute;tica   nuclear es &uacute;til en pacientes con   sospecha de lesiones cervicales que alteran la din&aacute;mica de la degluci&oacute;n   (Recomendaci&oacute;n 1C). Se   concluye que los estudios diagn&oacute;sticos disponibles tienen deficiencias   metodol&oacute;gicas que no permiten hacer recomendaciones de mayor grado de validez.</font></p>     <p><font size="2">  <strong>Palabras clave:</strong>  <em>Disfagia, Evaluaci&oacute;n cl&iacute;nica, Gu&iacute;as cl&iacute;nicas, Trastorno de la degluci&oacute;n, Videofluoroscopia</em></font></p> <hr size="1" noshade>     <p><strong><font size="2">SUMMARY</font></strong></p>     <p><font size="2">We present an evidence&#8211;based guideline for the diagnosis   of dysphagia in children. The articles included were   retrieved by electronic search in Medline, Lilacs, and   Cochrane databases. The search was restricted to those   published between January 1996 and December 2007, in   English or Spanish, and only to those including children   (0&#8211;18 years). Manual search of papers cited by primary   articles and non&#8211;systematic reviews was also done. The   search strategy identified 605 articles and 58 were chosen   for further analysis. Evaluation of the papers was carried   out by all the authors and recommendations were done   by consensus. The guideline was developed by using the   AGREE instrument (Appraisal of Guidelines Research and   Evaluation) and the GRADE model (Grading Strength of   Recommendations and Quality of Evidence in Clinical   Guidelines) from the American College of Chest Physicians.</font></p>     <p><font size="2"> The diagnostic approach to children with dysphagia   begins with clinical suspicion, and thorough clinical history   and physical examination should precede any diagnostic   test. We found that in children with clinical features that   suggest dysphagia, videofluoroscopy is the recommended   imaging technique to confirm this condition   (Recommendation 1C). This test is considered to be the   gold standard to demonstrate aspiration and/or   penetration of contrast material into the airway   (Recommendation 1A). Ultrasound is considered as the   best diagnostic imaging technique in children with   dysphagia associated with tongue abnormalities   (Recommendation 1C). On the other hand, electromyography   might be used as a screening test in children aged   5 years or more with disorders of the facial muscles   (Recommendation 2B). Finally, magnetic resonance   imaging seems to provide the best diagnostic yield in   those children with cervical lesions responsible for   disrupting deglutition dynamics (Recommendation 1C).   In conclusion, available articles on diagnostic tests for   dysphagia have serious methodological deficiencies and   do not allow recommendations with better levels of   evidence.</font></p>     <p><font size="2"><strong> Key words:</strong>  <em>Dysphagia, Clinical evaluation, Clinical guidelines,   Swallowing disorders, Videofluoroscopy</em></font></p> <hr size="1" noshade>     <p>&nbsp;</p>     ]]></body>
<body><![CDATA[<p><strong><font size="3">OBJETIVOS</font></strong></p>     <p><font size="2">&#8226;    Construir una gu&iacute;a de pr&aacute;ctica cl&iacute;nica basada en la   evidencia aplicable al entorno local para el diagn&oacute;stico   de disfagia en la poblaci&oacute;n pedi&aacute;trica.    <br> &#8226;    Elaborar un algoritmo diagn&oacute;stico del ni&ntilde;o con disfagia   que le permita al cl&iacute;nico optimizar las ayudas   disponibles y orientar la intervenci&oacute;n.</font></p>     <p>&nbsp;</p>     <p> <font size="3"><strong>JUSTIFICACI&Oacute;N</strong></font></p>     <p> <font size="2">En las &uacute;ltimas dos d&eacute;cadas se ha incrementado la tasa de   supervivencia de ni&ntilde;os pret&eacute;rmino, con secuelas   perinatales, eventos traum&aacute;ticos graves y enfermedades   cr&oacute;nicas, todo lo cual ha causado una mayor tasa de   incidencia de disfagia.<sup>1</sup> Estos ni&ntilde;os presentan un riesgo   mayor de desnutrici&oacute;n y complicaciones respiratorias.<sup>2</sup> El   diagn&oacute;stico   y el tratamiento adecuados disminuyen la morbilidad, medida con menos ingresos   hospitalarios por   a&ntilde;o.<sup>3</sup></font></p>     <p><font size="2"> Debido a que la disfagia en los ni&ntilde;os depende de la   relaci&oacute;n cambiante entre las estructuras anat&oacute;micas y la   maduraci&oacute;n neurol&oacute;gica, no les son aplicables los   resultados de las pruebas diagn&oacute;sticas para adultos por   lo que se necesitan estudios espec&iacute;ficos para la poblaci&oacute;n   pedi&aacute;trica.<sup>2</sup></font></p>     <p>&nbsp;</p>     <p> <strong><font size="3">INTRODUCCI&Oacute;N</font></strong></p>     <p> <font size="2">La disfagia est&aacute; incluida en el grupo de trastornos de la   alimentaci&oacute;n presentes en cerca del 25% de los ni&ntilde;os. Se   relaciona con condiciones predisponentes como   alteraciones neurol&oacute;gicas, enfermedades musculares,   anomal&iacute;as de la cavidad oral, la faringe y el es&oacute;fago,   prematuridad, privaci&oacute;n de alimentos por v&iacute;a oral por   largos per&iacute;odos y enfermedad pulmonar cr&oacute;nica. En los   ni&ntilde;os predomina la disfagia mixta, es decir, la debida a   trastornos anat&oacute;micos, funcionales, del desarrollo y   socioambientales.<sup>4</sup> La incidencia puede llegar a 80% en   ni&ntilde;os con par&aacute;lisis cerebral y otros trastornos del   desarrollo, y tener complicaciones como la falla en el   medro, infecciones respiratorias a repetici&oacute;n,   desnutrici&oacute;n, trastornos inmunol&oacute;gicos, enfermedades cr&oacute;nicas e incluso la muerte.<sup>5&#8211;7</sup></font></p>     ]]></body>
<body><![CDATA[<p><font size="2"> Por lo anterior, la evaluaci&oacute;n, el diagn&oacute;stico y el   tratamiento de estos pacientes deben ser abordados por  un equipo interdisciplinario que incluya pediatra, gastroenter&oacute;logo, nutricionista, psic&oacute;logo, fonoaudi&oacute;logo y terapista ocupacional.<sup>8&#8211;10</sup></font></p>     <p>&nbsp;</p>     <p><font size="3"><strong>DEFINICI&Oacute;N DE T&Eacute;RMINOS</strong></font></p>     <p> <strong><font size="2">Degluci&oacute;n</font></strong></p>     <p><font size="2"> La degluci&oacute;n es el proceso fisiol&oacute;gico complejo mediante   el cual se logra el transporte del bolo alimentario o de   l&iacute;quidos desde la cavidad oral hasta el est&oacute;mago. Requiere la   actividad neuromuscular que se inicia como   un acto voluntario y sincronizado de contracciones y   relajaciones musculares, coordinado en el sistema   nervioso central por integraci&oacute;n de impulsos aferentes y   eferentes que provienen de los diferentes sistemas   (digestivo, respiratorio, neurol&oacute;gico), organizados bajo   el control aut&oacute;nomo de un centro de la degluci&oacute;n   localizado en el tallo cerebral o en circuitos intramurales  como ocurre en las porciones m&aacute;s bajas del es&oacute;fago.<sup>11,12</sup></font></p>     <p><font size="2"> <strong>Fases de la degluci&oacute;n</strong></font></p>     <p><font size="2"> La degluci&oacute;n comprende cuatro fases: la primera o fase   preparatoria, que incluye la masticaci&oacute;n y el cambio de   la consistencia del alimento; la segunda es la fase oral,   en la que la lengua impele el bolo alimentario hacia la   faringe; la tercera es la fase far&iacute;ngea, en la que el bolo   pasa por la faringe, y la &uacute;ltima, la fase esof&aacute;gica, permite   el tr&aacute;nsito del bolo desde el es&oacute;fago cervical hasta el   est&oacute;mago.<sup>11&#8211;19</sup></font></p>     <p><font size="2">  <strong>Disfagia</strong></font></p>     <p><font size="2"> Este t&eacute;rmino se refiere a cualquier trastorno de la   degluci&oacute;n, que puede presentarse en una o m&aacute;s de las   fases. En cuanto al origen, puede ser org&aacute;nico, funcional,   del desarrollo o mixto; su gravedad es variable.<sup>11&#8211;14,18&#8211;20</sup></font></p>     <p>&nbsp; </p>     ]]></body>
<body><![CDATA[<p><strong><font size="3">METODOLOG&Iacute;A</font></strong></p>     <p> <font size="2">Para elaborar esta gu&iacute;a de pr&aacute;ctica cl&iacute;nica, se hizo   la b&uacute;squeda de la informaci&oacute;n publicada entre enero de   1996 y diciembre de 2007 en las bases de datos: Medline,   Lilacs y el registro Cochrane. Se utilizaron los t&eacute;rminos   MesH (Medical Subject Headings): Dysphagia, swallowing   disorders, swallowing difficulty, swallowing problems,   swallowing dysfunction, deglutition dysfunction, clinical   evaluation, videofluoroscopy, fiberoptic endoscopic   evaluation of swallowing (FEEST), functional magnetic   resonance imaging, electromyography, videomanometry,   ultrasound assessment, Phmetry.</font></p>     <p><font size="2"> La b&uacute;squeda se restringi&oacute; a publicaciones en ingl&eacute;s   y espa&ntilde;ol que incluyeran solo poblaci&oacute;n pedi&aacute;trica   (menores de 18 a&ntilde;os). Adem&aacute;s, se incluyeron reportes   de revistas publicadas en Colombia, bibliograf&iacute;a de los   art&iacute;culos revisados y de otras revisiones no sistem&aacute;ticas.   La actualizaci&oacute;n m&aacute;s reciente de b&uacute;squeda se hizo en   febrero de 2008.</font></p>     <p><font size="2"> En el proceso de recolecci&oacute;n de evidencia se encontraron   605 art&iacute;culos con su respectivo resumen los cuales se   almacenaron en el programa de referencias Endnote 7.   Se revisaron los res&uacute;menes, se excluyeron los estudios    de tratamiento y las publicaciones en otros idiomas. En   algunos casos, por el limitado n&uacute;mero de publicaciones,   se tuvieron en cuenta reportes de casos aislados o la   revisi&oacute;n del tema por expertos. Se seleccionaron por    consenso los 58 art&iacute;culos m&aacute;s relevantes de la evaluaci&oacute;n   y del rendimiento de las pruebas diagn&oacute;sticas de disfagia    en ni&ntilde;os,<sup>21</sup> con el modelo GRADE del Colegio Americano   de M&eacute;dicos del T&oacute;rax (<a href="#tabla1">Tabla n.&ordm; 1</a>): Grading Strength of   Recommendations and Quality of Evidence in Clinical  Guidelines.<sup>22</sup></font></p>     <p align=center ><font size="2"><a name="tabla1"></a><img src=/img/revistas/iat/v22n2/a8i1.gif></font></p>     <p><font size="2"> La gu&iacute;a se redact&oacute; con la siguiente estructura:   presentaci&oacute;n de las ayudas diagn&oacute;sticas para la disfagia   en ni&ntilde;os, descripci&oacute;n de la prueba y grados de    recomendaci&oacute;n seg&uacute;n su utilidad (<a href="#tabla1">Tabla n.&ordm; 1</a>).   En la   secci&oacute;n final se presenta un algoritmo diagn&oacute;stico basado   en la evidencia recolectada.</font></p>     <p>&nbsp; </p>     <p><font size="3"><strong>DIAGN&Oacute;STICO DE LA DISFAGIA EN NI&Ntilde;OS</strong></font></p>     <p> <strong><font size="2">1. La evaluaci&oacute;n cl&iacute;nica y el diagn&oacute;stico   de disfagia</font></strong></p>     <p><font size="2"> El enfoque diagn&oacute;stico del ni&ntilde;o con disfagia debe partir   de la sospecha cl&iacute;nica. La anamnesis y el examen f&iacute;sico   deben preceder a cualquier actividad diagn&oacute;stica   complementaria. En la tabla n.&ordm; 2 se anotan los factores   de riesgo para disfagia.</font></p>     ]]></body>
<body><![CDATA[<p align=center ><font size="2"><a name="tabla2"></a><img src=/img/revistas/iat/v22n2/a8i2.gif></font></p>     <p><font size="2">Al iniciar el interrogatorio se debe preguntar por   el tiempo   de evoluci&oacute;n de los signos y s&iacute;ntomas sugestivos de   disfagia as&iacute; como por su cronicidad y modificaciones; entre   esas manifestaciones est&aacute;n: babear excesivamente,   escupir la comida y tener dificultad respiratoria durante   la alimentaci&oacute;n.<sup>23</sup> Luego se hace una evaluaci&oacute;n del   desarrollo para identificar las habilidades cognitivas,   motoras y orales, tanto gruesas como finas. Tambi&eacute;n se   hacen una evaluaci&oacute;n nutricional completa y la historia   alimentaria que incluya la cantidad y tipos de alimentos   ingeridos por el ni&ntilde;o, las dificultades con la succi&oacute;n y la   lactancia, el inicio de los alimentos s&oacute;lidos, la masticaci&oacute;n,   el tama&ntilde;o del bolo alimentario, el cierre labial, bombeo   lingual repetitivo y retenci&oacute;n del alimento en la boca,   preferencia o intolerancia a ciertos alimentos y texturas,   rechazo a la alimentaci&oacute;n, tos y respiraci&oacute;n ruidosa con   la ingesta (que puede sugerir aspiraci&oacute;n o residuos en la   faringe), tiempo excesivo para la alimentaci&oacute;n,   momentos del d&iacute;a en que come mejor, t&eacute;cnicas, posici&oacute;n   y aditamentos empleados para la alimentaci&oacute;n; toda esta   informaci&oacute;n permitir&aacute; tener una idea de las fases y   estructuras que est&aacute;n afectadas en el proceso de la   degluci&oacute;n.</font></p>     <p><font size="2"><strong>Recomendaciones</strong></font></p>     <p><font size="2"> 1. El objetivo de la evaluaci&oacute;n cl&iacute;nica de la disfagia en   los ni&ntilde;os es seleccionar la conducta que se va a seguir   en cuanto al manejo inmediato de la alimentaci&oacute;n: si   es preciso suprimir la v&iacute;a oral en forma temporal o   definitiva a la luz de los hallazgos mientras se ponen   en pr&aacute;ctica otras medidas diagn&oacute;sticas y terap&eacute;uticas.   Ante la sospecha de aspiraci&oacute;n se debe continuar el   estudio con ayudas diagn&oacute;sticas que identifiquen la   fase alterada de la degluci&oacute;n para definir cu&aacute;l va a   ser la intervenci&oacute;n e iniciar la terapia de rehabilitaci&oacute;n.<sup>24&#8211;25</sup> (Recomendaci&oacute;n 1C).</font></p>     <p><font size="2"> 2. La evaluaci&oacute;n cl&iacute;nica tiene sensibilidad variable (entre   57% y 90%) dependiendo del entrenamiento de los   observadores, de la fase de la degluci&oacute;n evaluada y   del tipo de alimento. <sup>26&#8211;29</sup> En ni&ntilde;os con alta sospecha   cl&iacute;nica de disfagia se debe complementar la   evaluaci&oacute;n con la videofluoroscopia. (Recomendaci&oacute;n   1C).</font></p>     <p><font size="2"> 3. La clasificaci&oacute;n de la disfagia en ni&ntilde;os, con base en   predictores de la aspiraci&oacute;n, no est&aacute; bien estudiada.   Se deben tener en cuenta los signos sugestivos de   aspiraci&oacute;n durante la alimentaci&oacute;n como tos anormal,   disfon&iacute;a, disartria y cambios en la voz, para   complementar con otras ayudas diagn&oacute;sticas y definir   la presencia de aspiraci&oacute;n.<sup>30&#8211;34</sup> (Recomendaci&oacute;n 1C).</font></p>     <p><font size="2"> 4. Se puede sospechar cl&iacute;nicamente la aspiraci&oacute;n silenciosa   o no evidente en ni&ntilde;os con s&iacute;ntomas inespec&iacute;ficos   como tos, alimentaci&oacute;n lenta, rehusar alimentarse,   llanto, cianosis, apnea, ahogo en prematuros,   bradicardia y estridor. La evaluaci&oacute;n cl&iacute;nica sin signos   sugestivos de aspiraci&oacute;n, o de alteraci&oacute;n de la   fase far&iacute;ngea, no descarta la posibilidad de aspiraci&oacute;n   silente, por lo que se recomienda la videofluoroscopia.<sup>28</sup> (Recomendaci&oacute;n   2A).</font></p>     <p><font size="2"> 5. En los ni&ntilde;os con trastornos neurol&oacute;gicos, sin reflujo   gastroesof&aacute;gico y con s&iacute;ntomas respiratorios cr&oacute;nicos,   las aspiraciones silentes pueden ser las que expliquen   estos &uacute;ltimos, por lo cual se debe complementar la   evaluaci&oacute;n cl&iacute;nica con estudios de im&aacute;genes.<sup>31</sup> (Recomendaci&oacute;n   1C).</font></p>     <p><font size="2"> 6. En ni&ntilde;os con TEC moderado o grave se debe estudiar   inicialmente la mec&aacute;nica de la degluci&oacute;n mediante   un examen cl&iacute;nico en la cama del paciente. Ante la   presencia de trastornos en las fases oral y far&iacute;ngea   solicitar im&aacute;genes que confirmen la sospecha.<sup>25,33</sup> (Recomendaci&oacute;n   1C).</font></p>     <p><font size="2"> 7. La sospecha cl&iacute;nica de disfagia, su diagn&oacute;stico   oportuno y una intervenci&oacute;n nutricional temprana   mejoran el pron&oacute;stico de los ni&ntilde;os con discapacidad,   con el resultado de menos hospitalizaciones por   a&ntilde;o.<sup>3,35</sup> (Recomendaci&oacute;n 1C).</font></p>     ]]></body>
<body><![CDATA[<p><font size="2"> <strong>2. El papel de la videofluoroscopia o el trago de   bario modificado</strong></font></p>     <p><font size="2"> La videofluoroscopia es una ayuda diagn&oacute;stica que   suministra im&aacute;genes din&aacute;micas de las fases oral, far&iacute;ngea   y esof&aacute;gica de la degluci&oacute;n. Eval&uacute;a la motilidad far&iacute;ngea   y el grado de protecci&oacute;n de la v&iacute;a a&eacute;rea durante el proceso   de la degluci&oacute;n.<sup>36&#8211;38</sup> Se considera que es el examen m&aacute;s &uacute;til   para documentar la secuencia de la degluci&oacute;n en los   pacientes con sospecha de disfagia. Durante el examen   se eval&uacute;an alimentos de varias consistencias con medio   de contraste y se analizan diversas posiciones de la cabeza   y el cuello con el fin de encontrar la m&aacute;s adecuada para   lograr una degluci&oacute;n segura. Si el paciente presenta una   aspiraci&oacute;n se detiene el examen.<sup>39</sup> No hay consenso sobre   la gravedad de la aspiraci&oacute;n con la cual se suspende la    alimentaci&oacute;n oral pero la mayor&iacute;a de los estudios   sugieren que la aspiraci&oacute;n de m&aacute;s del 10% del bolo es indicaci&oacute;n para buscar v&iacute;as alternas de alimentaci&oacute;n.<sup>7</sup></font></p>     <p><font size="2">La   videofluoroscopia en ni&ntilde;os con sospecha de disfagia   detecta reflujo nasofar&iacute;ngeo, penetraci&oacute;n lar&iacute;ngea y   aspiraci&oacute;n; es de utilidad para demostrar la aspiraci&oacute;n   silenciosa y el momento en que se produce: antes, durante   o despu&eacute;s de la degluci&oacute;n.<sup>2</sup> Se ha demostrado que   confirma la disfunci&oacute;n del mecanismo de la degluci&oacute;n en ni&ntilde;os   menores de un a&ntilde;o con estudios previos negativos    para reflujo gastroesof&aacute;gico a quienes se les sospech&oacute;   penetraci&oacute;n o aspiraci&oacute;n lar&iacute;ngea.<sup>40</sup></font></p>     <p><font size="2"> Aunque la prueba se use de forma amplia en la poblaci&oacute;n   pedi&aacute;trica, no existen descripciones estandarizadas sobre   la din&aacute;mica de la degluci&oacute;n ni par&aacute;metros definidos para   establecer la gravedad de las alteraciones encontradas;   se ha informado variabilidad en un mismo observador y   de uno a otro observador principalmente en la   interpretaci&oacute;n de los resultados.<sup>41,42</sup> No hay estudios   aleatorizados y controlados que establezcan su seguridad   en cuanto a la dosis de radiaci&oacute;n usada en ni&ntilde;os.<sup>43</sup></font></p>     <p><font size="2">  <strong>Recomendaciones</strong></font></p>     <p><font size="2"> 1. La videofluoroscopia es el est&aacute;ndar de oro para confirmar   la presencia de aspiraci&oacute;n o penetraci&oacute;n de la   v&iacute;a a&eacute;rea en el paciente pedi&aacute;trico y en el seguimiento   posquir&uacute;rgico de los que han sido intervenidos por   atresia de es&oacute;fago.<sup>40&#8211;42,44,45</sup> (Recomendaci&oacute;n 1A).</font></p>     <p><font size="2"> 2. Cuando la cl&iacute;nica no es concluyente, se debe complementar   la evaluaci&oacute;n cl&iacute;nica con la videofluoroscopia   en los pacientes con dificultades de la degluci&oacute;n, para   obtener una representaci&oacute;n m&aacute;s completa de las   anormalidades en la fase orofar&iacute;ngea y de su gravedad. <sup>39,40</sup> (Recomendaci&oacute;n   1B).</font></p>     <p><font size="2"> 3. La videofluoroscopia orienta el diagn&oacute;stico y enfoca   la terapia hacia las intervenciones &uacute;tiles para lograr   una degluci&oacute;n segura.<sup>40</sup> (Recomendaci&oacute;n 1B).</font></p>     <p><font size="2"> 4. Se requiere estandarizar la metodolog&iacute;a y los   par&aacute;metros de evaluaci&oacute;n de la videofluoroscopia   teniendo en cuenta que la mayor&iacute;a de las decisiones   terap&eacute;uticas se basan en su interpretaci&oacute;n.<sup>40&#8211;42</sup> (Recomendaci&oacute;n   1C).</font></p>     <p><font size="2"> <strong>3. El papel de la endoscopia fibr&oacute;ptica de la degluci&oacute;n   con est&iacute;mulo o nasofibroendoscopia   (FEEST, por la sigla en ingl&eacute;s de Flexible endoscopic   evaluation of swallowing with sensory testing)</strong></font></p>     ]]></body>
<body><![CDATA[<p><font size="2"> Esta prueba permite evaluar las partes anat&oacute;mica,   motora y sensorial de la degluci&oacute;n, combinando la visi&oacute;n   endosc&oacute;pica directa con la estimulaci&oacute;n sensorial;<sup>46&#8211;52</sup> en   ella se pueden observar directamente las caracter&iacute;sticas   anat&oacute;micas; en cuanto a la funci&oacute;n motora, se eval&uacute;a   observando la fuerza de los m&uacute;sculos far&iacute;ngeos durante   la contracci&oacute;n muscular voluntaria en&eacute;rgica en aducci&oacute;n   de las cuerdas vocales; es normal si hay excursi&oacute;n medial   de la pared lateral de la faringe y existe alteraci&oacute;n   m&iacute;nima, y anormal en el caso contrario; por &uacute;ltimo, la   evaluaci&oacute;n sensorial se hace por medio de pulsos de aire   sobre la mucosa laringofar&iacute;ngea, inervada por el nervio   lar&iacute;ngeo superior, para desencadenar los reflejos   protectores de la v&iacute;a a&eacute;rea.<sup>50</sup></font></p>     <p><font size="2"> Se acepta que este es un examen seguro en todos los   grupos de edad;<sup>46&#8211;52</sup> se puede administrar la alimentaci&oacute;n   favorita del ni&ntilde;o y repetirlo a necesidad.<sup>50</sup> La prueba   identifica el efecto del reflujo gastroesof&aacute;gico en la laringe   y las aspiraciones silenciosas en pacientes con   alteraciones neurol&oacute;gicas y malformaciones cong&eacute;nitas   de la v&iacute;a a&eacute;rea.<sup>46&#8211;49,52</sup> Tiene menor costo que la   videofluoroscopia, es f&aacute;cil de aplicar, se graba en v&iacute;deo y   permite evaluar simult&aacute;neamente la anatom&iacute;a de la   faringe y la fisiolog&iacute;a de la laringe.<sup>47,48,52</sup></font></p>     <p><font size="2"> <strong>Recomendaci&oacute;n</strong></font></p>     <p><font size="2"> Como la videofluoroscopia, la evaluaci&oacute;n sensorial de la   degluci&oacute;n (FEESST) se considera un patr&oacute;n de oro en el   estudio de los trastornos de la degluci&oacute;n. Permite evaluar   la nasofaringe y la laringe, con visualizaci&oacute;n clara de las   estructuras anat&oacute;micas y sin interferir con la fisiolog&iacute;a   normal de la respiraci&oacute;n, la degluci&oacute;n y la fonaci&oacute;n.<sup>46&#8211;50</sup> (Recomendaci&oacute;n   1C).</font></p>     <p><font size="2">  <strong>4. Ultrasonido</strong></font></p>     <p><font size="2"> El ultrasonido (US) ha surgido como una alternativa a las   t&eacute;cnicas radiol&oacute;gicas con uso de contraste para el estudio   de la disfagia. Proporciona una excelente delineaci&oacute;n de   los tejidos blandos dentro de la cavidad oral e im&aacute;genes   en los planos coronal y sagital. El examen es flexible y   adaptable, est&aacute; libre de efectos secundarios, simula los   procesos naturales de alimentaci&oacute;n y pueden   administrarse alimentos naturales con un rango de   consistencias desde l&iacute;quido hasta s&oacute;lido pasando por   semis&oacute;lido. Se puede grabar en v&iacute;deo para an&aacute;lisis   retrospectivo. Sin embargo, la interpretaci&oacute;n de la prueba   depende del operador y no hay sistemas de puntaje que   estandaricen los resultados.<sup>7,13,53&#8211;55</sup></font></p>     <p><font size="2"><strong>  Recomendaciones</strong></font></p>     <p><font size="2"> 1. El US es el m&eacute;todo de elecci&oacute;n en pacientes     con disfagia asociada a anormalidades de la lengua   durante la fase oral.<sup>53</sup> (Recomendaci&oacute;n 1C).</font></p>     <p><font size="2"> 2. Se recomienda el US para evaluar la succi&oacute;n en   neonatos prematuros.<sup>54</sup> (Recomendaci&oacute;n 2C).</font></p>     <p><font size="2">3. El US permite la evaluaci&oacute;n inmediata de la actividad   de la lengua durante la succi&oacute;n y la degluci&oacute;n. Est&aacute;  indicado como ayuda para evaluar la evoluci&oacute;n de los individuos durante la terapia.<sup>55</sup> (Recomendaci&oacute;n 1C).</font></p>     ]]></body>
<body><![CDATA[<p><font size="2"> <strong>5. Electromiograf&iacute;a</strong></font></p>     <p><font size="2"> La electromiograf&iacute;a (EMG) es el estudio electrofisiol&oacute;gico   del sistema neuromuscular. No es una prueba   complementaria sino la prolongaci&oacute;n del estudio cl&iacute;niconeurol&oacute;gico   y se dise&ntilde;a en cada caso en funci&oacute;n de la   historia cl&iacute;nica y de la exploraci&oacute;n neurol&oacute;gica.<sup>13</sup></font></p>     <p><font size="2"> La t&eacute;cnica de la EMG con electrodos de aguja presenta   limitaciones inherentes a la anatom&iacute;a en ni&ntilde;os, por lo   que se prefiere utilizar en ellos la EMG de superficie   (EMGS), que no es invasiva, le produce poca incomodidad   al paciente y permite evaluar la duraci&oacute;n y la amplitud   (rango, voltaje) de la actividad muscular durante la   degluci&oacute;n.<sup>56,57</sup></font></p>     <p><font size="2"> <strong>Recomendaciones</strong></font></p>     <p><font size="2"> 1. Se puede utilizar la EMG como una prueba de   tamizaci&oacute;n para ni&ntilde;os mayores de cinco a&ntilde;os con   alteraci&oacute;n neurol&oacute;gica en quienes se sospecha    disfagia; permite evaluar las fases oral y far&iacute;ngea<sup>56</sup>.   (Recomendaci&oacute;n 2B).</font></p>     <p><font size="2">2. La EMG permite comparar pacientes preoperatorios   y posoperatorios y monitorizar a los que est&aacute;n en tratamiento neurol&oacute;gico.<sup>57</sup> (Recomendaci&oacute;n 2C).</font></p>     <p><font size="2"> <strong>6. Videomanometr&iacute;a</strong></font></p>     <p><font size="2"> La videomanometr&iacute;a integra datos manom&eacute;tricos y   fluorosc&oacute;picos de par&aacute;metros como: fuerza de conducci&oacute;n   de la lengua, contracci&oacute;n far&iacute;ngea, acortamiento   far&iacute;ngeo, relajaci&oacute;n del esf&iacute;nter esof&aacute;gico superior   (EES)   y amplitud de la contracci&oacute;n far&iacute;ngea. La manometr&iacute;a   detecta fallas en la relajaci&oacute;n del EES cuando las im&aacute;genes   videofluorosc&oacute;picas &uacute;nicamente muestran alteraci&oacute;n o   ausencia de tr&aacute;nsito desde la hipofaringe al es&oacute;fago.<sup>13</sup></font></p>     <p><font size="2"> <strong>Recomendaci&oacute;n</strong></font></p>     <p><font size="2"> La videomanometr&iacute;a es una t&eacute;cnica promisoria para la   evaluaci&oacute;n cuantitativa del ni&ntilde;o con disfagia orofar&iacute;ngea,   porque permite evaluar la contractilidad far&iacute;ngea as&iacute;  como el tono y la relajaci&oacute;n del EES durante la degluci&oacute;n   de bolos h&uacute;medos. Es necesario hacer estudios en ni&ntilde;os   sanos para establecer los valores de referencia en los   diferentes grupos de edad y tener criterios diagn&oacute;sticos   precisos.<sup>58</sup> (Recomendaci&oacute;n 1C).</font></p>     ]]></body>
<body><![CDATA[<p><font size="2"> <strong>7. Medici&oacute;n del pH esof&aacute;gico en 24 horas</strong></font></p>     <p><font size="2"> El reflujo gastroesof&aacute;gico (RGE) es una situaci&oacute;n muy   frecuente en los ni&ntilde;os con disfagia y trastornos   neurol&oacute;gicos como par&aacute;lisis cerebral. Puede manifestarse   con s&iacute;ntomas cl&aacute;sicos como regurgitaci&oacute;n y v&oacute;mito   o   at&iacute;picos como rechazo a ciertos alimentos y s&iacute;ntomas   respiratorios.<sup>29</sup> En ni&ntilde;os con discapacidad y par&aacute;lisis   cerebral el tratamiento quir&uacute;rgico del reflujo tiene mayor   morbilidad; por eso es importante hacer el diagn&oacute;stico e   iniciar el tratamiento m&eacute;dico y evitar en lo posible el   quir&uacute;rgico.<sup>59</sup></font></p>     <p><font size="2"> <strong>Recomendaciones</strong></font></p>     <p><font size="2"> 1. En ni&ntilde;os con antecedente de prematuridad o lactantes   sanos, con disfagia y s&iacute;ntomas respiratorios como   sibilancias recurrentes, tos cr&oacute;nica, otitis media cr&oacute;nica   y laringoespasmo, se debe investigar el RGE como   causa de la disfagia, para lo cual es &uacute;til la medici&oacute;n   del pH esof&aacute;gico en 24 horas. Faltan m&aacute;s estudios con   pruebas como impedanciometr&iacute;a en ni&ntilde;os menores   de un a&ntilde;o y prematuros.<sup>60</sup> (Recomendaci&oacute;n 1C).</font></p>     <p><font size="2"> 2. En ni&ntilde;os con disfagia se debe confirmar el diagn&oacute;stico   de RGE por la medici&oacute;n del pH esof&aacute;gico en 24 horas   e idealmente con endoscopia digestiva superior para   corroborar la esofagitis, iniciar el enfoque terap&eacute;utico   adecuado y mejorar la disfagia.<sup>59</sup> (Recomendaci&oacute;n   1C).</font></p>     <p><font size="2"> <strong>8. Resonancia magn&eacute;tica</strong></font></p>     <p><font size="2"> La resonancia magn&eacute;tica nuclear (RMN) permite evaluar   el sistema nervioso y definir alteraciones m&iacute;nimas de los   tejidos blandos que dif&iacute;cilmente se pueden visualizar   mediante otras t&eacute;cnicas de imagen. Se utiliza para el   diagn&oacute;stico de condiciones que afectan secundariamente   el mecanismo de la degluci&oacute;n como alteraciones en el   sistema nervioso central, los pares craneanos y la   motilidad esof&aacute;gica.</font></p>     <p><font size="2"> <strong>Recomendaciones</strong></font></p>     <p><font size="2"> 1. La RMN puede ser de utilidad en pacientes con   sospecha cl&iacute;nica de lesiones cervicales que   comprometan la din&aacute;mica de la degluci&oacute;n.<sup>61</sup> (Recomendaci&oacute;n   1C).</font></p>     <p><font size="2"> 2. En pacientes con alteraciones esof&aacute;gicas la RMN   permite encontrar problemas de la degluci&oacute;n, la   motilidad esof&aacute;gica y la uni&oacute;n gastroesof&aacute;gica.<sup>62,63</sup> (Recomendaci&oacute;n   2B).</font></p>     ]]></body>
<body><![CDATA[<p><font size="2">3. En pacientes con aspiraci&oacute;n y trastorno de la   degluci&oacute;n, con hallazgos cl&iacute;nicos sugestivos de afecci&oacute;n   de los pares craneanos IX y X, la RMN cerebral   favorece la correlaci&oacute;n del trastorno neurol&oacute;gico con la anatom&iacute;a y la funci&oacute;n.<sup>64</sup> (Recomendaci&oacute;n 1C).</font></p>     <p><font size="2"> 4. La resonancia magn&eacute;tica suministra im&aacute;genes muy&uacute;   tiles en pacientes con sospecha cl&iacute;nica de anillo   vascular como causa de estridor y disfagia.<sup>65</sup> (Recomendaci&oacute;n   2A).</font></p>     <p><font size="2"><strong> 9. Otras t&eacute;cnicas</strong></font></p>     <p><font size="2"> La evaluaci&oacute;n de la disfagia con electrodos es un estudio   fisiol&oacute;gico de la degluci&oacute;n y la respiraci&oacute;n. Es una t&eacute;cnica   barata, no invasiva, sin irradiaci&oacute;n, que puede servir de   tamizaci&oacute;n para iniciar las terapias. Un estudio en ni&ntilde;os   con par&aacute;lisis cerebral mostr&oacute; diferencias significativas   en el tiempo de la apnea con la degluci&oacute;n, en el   movimiento de los labios y la lengua y en otros aspectos   de la fase oral con respecto a ni&ntilde;os sanos.66 Faltan estudios    con mayor n&uacute;mero de pacientes para hacer   recomendaciones m&aacute;s espec&iacute;ficas.</font></p>     <p><font size="2"> A continuaci&oacute;n se presenta el algoritmo elaborado a   partir de la revisi&oacute;n bibliogr&aacute;fica y el an&aacute;lisis de la   informaci&oacute;n, para el enfoque diagn&oacute;stico del ni&ntilde;o con   disfagia:</font></p>     <p align=center ><font size="2"><img src=/img/revistas/iat/v22n2/a8i3.gif></font></p>     <p>&nbsp;</p>     <p><strong>REFERENCIAS BIBLIOGR&Aacute;FICAS</strong></p>     <!-- ref --><p>  <font size="2">1. Miller CK, Willging JP. Advances in the evaluation and   management of pediatric dysphagia. <em>Curr Opin Otolaryngol Head Neck Surg </em>2003; 11: 442&#8211;446.</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=000111&pid=S0121-0793200900020000800001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font size="2"> 2. Newman LA, Keckley C, Petersen MC, Hamner A.   Swallowing function and medical diagnoses in infants   suspected of dysphagia. <em>Pediatrics</em> 2001; 108: E106.</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=000112&pid=S0121-0793200900020000800002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font size="2"> 3. Schwarz SM, Corredor J, Fisher&#8211;Medina J, Cohen J,   Rabinowitz S. Diagnosis and treatment of feeding   disorders in children with developmental disabilities.   <em>Pediatrics</em> 2001; 108: 671&#8211;676.</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=000113&pid=S0121-0793200900020000800003&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font size="2"> 4. Burlow K, Phelps AN, Shultz J. Classifying complex   pediatric feeding disorders. <em>J Pediatric Gastroenterol   Nutrition</em> 1998; 27: 143&#8211;147.</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=000114&pid=S0121-0793200900020000800004&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font size="2">  5. Manikam R, Perman JA. Pediatric feeding disorders. <em>J   Clin Gastroenterol</em> 2000; 30: 34&#8211;46.</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=000115&pid=S0121-0793200900020000800005&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font size="2"> 6. Mathisen B, Worrall L, Masel J, Wall C, Shepherd RW.   Feeding problems in infants with gastro&#8211;oesophageal   reflux disease: a controlled study.<em> J Paediatr Child Health</em>  1999; 35: 163&#8211;169.</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=000116&pid=S0121-0793200900020000800006&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font size="2"> 7. Darrow DH, Harley CM. Evaluation of swallowing   disorders in children. <em>Otolaryngol Clin North Am</em> 1998;   31: 405&#8211;418.</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=000117&pid=S0121-0793200900020000800007&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font size="2"> 8. American Gastroenterology Association. American   Gastroenterology Association medical position   statement on management of oropharyngeal dysphagia.   <em>Gastroenterology</em> 1999; 116: 452&#8211;454.</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=000118&pid=S0121-0793200900020000800008&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font size="2"> 9. Adverson J. Management of pediatric dysphagia.   <em>Otolaryngol Clin North Am</em> 1998; 31: 453&#8211;475.</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=000119&pid=S0121-0793200900020000800009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font size="2"> 10. Fattori B, Ursino F, Matteucci F, Mallardi V, Nacci A.   Swallowing disorders: proposal of a method for forensic   medicine assessment. <em>Acta Otorhinolaryngol Ital</em> 2007;   27: 129&#8211;133.</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=000120&pid=S0121-0793200900020000800010&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font size="2"> 11. Douglas. C. Fisiolog&iacute;a da degluti&ccedil;ao Patofisiolog&iacute;a   oral.   Fisiolog&iacute;a normal e patolog&iacute;ca aplicada a odontolog&iacute;a   e   fonoaudiolog&iacute;a. 1&ordf; ed. Sao Paulo: Pancast Editora com. E representa&ccedil;aoes   Ltda, 1998: 273&#8211;285.</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=000121&pid=S0121-0793200900020000800011&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font size="2"> 12. Olszewski J. Causes, diagnosis and treatment of   neurogenic dysphagia as an interdisciplinary clinical   problem. <em>Otolaryngol Pol</em> 2006; 60: 491&#8211;500.</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=000122&pid=S0121-0793200900020000800012&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font size="2"> 13. Tuchman D. Disorders of deglutition. In: Walker G,   Kleinman R, Sherman P, Shneider B, Sanderson I, editors.   Pediatric Gastrointestinal Disease, 4&ordf; ed, 2006: 371&#8211;383.</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=000123&pid=S0121-0793200900020000800013&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font size="2"> 14. Stevenson RD, Allaire JH. The development of normal   feeding and swallowing. <em>Pediatr Clin North Am</em> 1991; 38:   1439&#8211;1453.</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=000124&pid=S0121-0793200900020000800014&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font size="2"> 15. Goyal. R. Disorders of the cricopharyngeus muscle. <em>Otolaryngol Clin North Am</em> 1984; 17: 115&#8211;130.</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=000125&pid=S0121-0793200900020000800015&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font size="2"> 16. Miller A. Neurophysiological basis of swallowing.   <em>Dysphagia</em> 1986; 1: 91&#8211;100.</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=000126&pid=S0121-0793200900020000800016&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font size="2"> 17. Miller A. 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