<?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>1808-5210</journal-id>
<journal-title><![CDATA[Revista de Cirurgia e Traumatologia Buco-maxilo-facial]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. cir. traumatol. buco-maxilo-fac.]]></abbrev-journal-title>
<issn>1808-5210</issn>
<publisher>
<publisher-name><![CDATA[Universidade de Pernambuco]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1808-52102010000200002</article-id>
<title-group>
<article-title xml:lang="pt"><![CDATA[Paralisia facial após técnica anestésica mandibular]]></article-title>
<article-title xml:lang="en"><![CDATA[Facial nerve palsy after mandibular anesthesia technique]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Azenha]]></surname>
<given-names><![CDATA[Marcelo Rodrigues]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sicchieri]]></surname>
<given-names><![CDATA[Luciana]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Oliveira Neto]]></surname>
<given-names><![CDATA[Patrício José de]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rosa]]></surname>
<given-names><![CDATA[Adalberto Luiz]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,USP  ]]></institution>
<addr-line><![CDATA[ São Paulo]]></addr-line>
</aff>
<aff id="A02">
<institution><![CDATA[,USP Departamento de Cirurgia e Traumatologia Buco-maxilo-facial ]]></institution>
<addr-line><![CDATA[Ribeirão Preto ]]></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>10</volume>
<numero>2</numero>
<fpage>9</fpage>
<lpage>11</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://revodonto.bvsalud.org/scielo.php?script=sci_arttext&amp;pid=S1808-52102010000200002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://revodonto.bvsalud.org/scielo.php?script=sci_abstract&amp;pid=S1808-52102010000200002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://revodonto.bvsalud.org/scielo.php?script=sci_pdf&amp;pid=S1808-52102010000200002&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="pt"><p><![CDATA[A paralisia do nervo facial tem múltiplas etiologias, como viroses, traumatismo facial, codutas iatrogênicas, tumores, origem idiopática, infarto cerebral e paralisia pseudobulbar, sendo, portanto, um achado bastante raro durante o tratamento dentário. Nessas situações, a paralisia pode estar associada à realização errônea da técnica anestésica, a procedimentos cirúrgicos prolongados de extração dentária, ou ainda, a infecções de origem dental. Neste trabalho, é demonstrado um caso de paralisia hemi-facial completa, ocorrida durante anestesia dos nervos lingual, alveolar inferior e bucal em uma paciente de 63 anos. A recuperação completa dos movimentos faciais foi observada após algumas horas, com a paciente sendo liberada, e o procedimento cirúrgico realizado duas semanas mais tarde.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Facial nerve palsy has many etiologies, such as viruses, facial trauma, iatrogenesis, tumors, idiopathic conditions, cerebral infarction and pseudobulbar palsy, as a result of which it is rarely observed during dental treatment. In this situation, it may be associated with the injection of a local anesthetic, prolonged surgical procedure for the removal of mandibular molars and infections of dental origin. We report a case of complete facial nerve palsy during a mandibular nerve block anesthesia in a 63-year-old woman. The full recovery of facial movements was attained after a few hours and she was discharged. The surgical procedure was performed two weeks later.]]></p></abstract>
<kwd-group>
<kwd lng="pt"><![CDATA[Paralisia Facial]]></kwd>
<kwd lng="pt"><![CDATA[Nervo Facial]]></kwd>
<kwd lng="pt"><![CDATA[Nervo Mandibular]]></kwd>
<kwd lng="en"><![CDATA[Facial palsy]]></kwd>
<kwd lng="en"><![CDATA[facial nerve]]></kwd>
<kwd lng="en"><![CDATA[mandibular nerve]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="right"><font size="2" face="Verdana"><B>ARTIGO DE CASO CL&Iacute;NICO</B></font></p>     <p>&nbsp;</p>     <p><font size="4" face="verdana"><B><a name="tx"></a>Paralisia facial ap&oacute;s t&eacute;cnica anest&eacute;sica mandibular</B></font></p>     <p>&nbsp;</p>     <p><font size="3" face="Verdana"><b>Facial nerve palsy after mandibular anesthesia technique</b></font></p>     <p>&nbsp;</p>     <p>&nbsp;</p>     <p><font size="2" face="Verdana"><b>Marcelo Rodrigues Azenha<SUP>I</SUP>; Luciana Sicchieri<SUP>I</SUP>; Patr&iacute;cio Jos&eacute; de Oliveira Neto<SUP>I</SUP>; Adalberto Luiz Rosa<SUP>II</SUP></b></font></p>     <p><font size="2" face="Verdana"><SUP>I</SUP>Mestrando em Cirurgia e Traumatologia Buco&#45;maxilo&#45;facial, USP, Ribeir&atilde;o Preto, S&atilde;o Paulo    <br>   <SUP>II</SUP>Prof. do Departamento de Cirurgia e Traumatologia Buco&#45;maxilo&#45;facial, USP, Ribeir&atilde;o Preto </font></p>     ]]></body>
<body><![CDATA[<p><font size="2" face="Verdana"><a href="#nt">Endere&ccedil;o para correspond&ecirc;ncia</a></font></p>     <p>&nbsp;</p>     <p>&nbsp;</p> <hr size="1" noshade>     <p><font size="2" face="Verdana"><b>RESUMO</b></font></p>     <p><font size="2" face="Verdana">A paralisia do nervo facial tem m&uacute;ltiplas etiologias, como viroses, traumatismo facial, codutas iatrog&ecirc;nicas, tumores, origem idiop&aacute;tica, infarto cerebral e paralisia pseudobulbar, sendo, portanto, um achado bastante raro durante o tratamento dent&aacute;rio. Nessas situa&ccedil;&otilde;es, a paralisia pode estar associada &agrave; realiza&ccedil;&atilde;o err&ocirc;nea da t&eacute;cnica anest&eacute;sica, a procedimentos cir&uacute;rgicos prolongados de extra&ccedil;&atilde;o dent&aacute;ria, ou ainda, a infec&ccedil;&otilde;es de origem dental. Neste trabalho, &eacute; demonstrado um caso de paralisia hemi&#45;facial completa, ocorrida durante anestesia dos nervos lingual, alveolar inferior e bucal em uma paciente de 63 anos. A recupera&ccedil;&atilde;o completa dos movimentos faciais foi observada ap&oacute;s algumas horas, com a paciente sendo liberada, e o procedimento cir&uacute;rgico realizado duas semanas mais tarde.</font></p>     <p><font size="2" face="Verdana"><B>Descritores:</B> Paralisia Facial. Nervo Facial. Nervo Mandibular.</font></p> <hr size="1" noshade>     <p><font size="2" face="Verdana"><b>ABSTRACT</b></font></p>     <p><font size="2" face="Verdana"> Facial nerve palsy has many etiologies, such as viruses, facial trauma, iatrogenesis, tumors, idiopathic conditions, cerebral infarction and pseudobulbar palsy, as a result of which it is rarely observed during dental treatment. In this situation, it may be associated with the injection of a local anesthetic, prolonged surgical procedure for the removal of mandibular molars and infections of dental origin. We report a case of complete facial nerve palsy during a mandibular nerve block anesthesia in a 63&#45;year&#45;old woman. The full recovery of facial movements was attained after a few hours and she was discharged. The surgical procedure was performed two weeks later.</font></p>     <p><font size="2" face="Verdana"><B>Key&#45;words:</B> Facial palsy; facial nerve; mandibular nerve.</font></p> <hr size="1" noshade>     <p>&nbsp;</p>     ]]></body>
<body><![CDATA[<p>&nbsp;</p>     <p><font size="3" face="Verdana"><b>INTRODU&Ccedil;&Atilde;O</b></font></p>     <p><font size="2" face="Verdana">A Paralisia do Nervo Facial (PNF) pode ocorrer por diferentes motivos, como traumatismo, compress&atilde;o, processos infecciosos ou inflamat&oacute;rios, dist&uacute;rbios metab&oacute;licos e iatrogenias. O nervo facial, dentre os nervos cranianos, &eacute; o mais acometido, sendo a ocorr&ecirc;ncia de les&otilde;es durante o tratamento dent&aacute;rio bastante rara e incomum. Poucos autores descrevem casos de PNF decorrente do tratamento odontol&oacute;gico<SUP>1&#45;5</SUP>. Gray (1978) cita 3 casos de paralisia facial causada por inje&ccedil;&atilde;o de anest&eacute;sico durante bloqueio mandibular, com total recupera&ccedil;&atilde;o dos pacientes ap&oacute;s 7 horas. A recupera&ccedil;&atilde;o dos movimentos normais pode demorar algumas horas, com o paciente estando apto a realizar suas atividades normais em um breve per&iacute;odo de tempo<SUP>6</SUP>. No presente artigo, os autores apresentam um caso de paralisia hemi&#45;facial, provocada pela compress&atilde;o do nervo facial ap&oacute;s a realiza&ccedil;&atilde;o da t&eacute;cnica anest&eacute;sica para bloqueio dos nervos lingual, alveolar inferior e bucal, em que a ruptura de pequenos vasos pode ter ocasionado a forma&ccedil;&atilde;o de um hematoma.</font></p>     <p>&nbsp;</p>     <p><font size="3" face="Verdana"><b>RELATO DE CASO</b></font></p>     <p><font size="2" face="Verdana">Paciente de 63 anos foi encaminhada &agrave; Cl&iacute;nica de Cirurgia Bucal para extra&ccedil;&atilde;o do primeiro molar inferior esquerdo. A paciente n&atilde;o apresentava nenhuma altera&ccedil;&atilde;o sist&ecirc;mica nem fazia uso de nenhum tipo de medica&ccedil;&atilde;o. Ap&oacute;s planejamento do caso, antissepsia e montagem dos campos est&eacute;reis e da mesa cir&uacute;rgica, o procedimento foi iniciado, objetivando o bloqueio regional dos nervos lingual, alveolar inferior e bucal do lado esquerdo, para completa dessensibiliza&ccedil;&atilde;o da regi&atilde;o e extra&ccedil;&atilde;o dent&aacute;ria. Alguns minutos ap&oacute;s o in&iacute;cio da infiltra&ccedil;&atilde;o do agente anest&eacute;sico (Mepivaca&iacute;na 2% com Epinefrina 1:100.000), a paciente relatou que sua face do lado esquerdo apresentava&#45;se "dormente, com peso anormal, dificuldade de fechar o olho do lado esquerdo e diminui&ccedil;&atilde;o discreta da saliva&ccedil;&atilde;o". Foi observado, ent&atilde;o, que a paciente apresentava naquele momento paralisia hemi&#45;facial, com exposi&ccedil;&atilde;o da esclera durante a tentativa de fechamento da p&aacute;lpebra esquerda, restri&ccedil;&atilde;o nos movimentos dos m&uacute;sculos faciais, que inclu&iacute;a, al&eacute;m do incompleto fechamento palpebral, perda da movimenta&ccedil;&atilde;o dos l&aacute;bios superior e inferior e da regi&atilde;o supraorbit&aacute;ria esquerda. (<a href="#fig01">Figuras 1a</a>,<a href="#fig01">b</a>,<a href="#fig01">c</a>,<a href="#fig01">d</a>)</font></p>     <p><a name="fig01"></a></p>     <p>&nbsp;</p>     <p align="center"><img src="/img/revistas/rctbmf/v10n2/a02fig01.jpg"></p>     <p>&nbsp;</p>     ]]></body>
<body><![CDATA[<p><font size="2" face="Verdana">Os sinais observados e os sintomas descritos pela paciente nos fizeram concluir que todas as ramifica&ccedil;&otilde;es do nervo facial encontravam&#45;se paralisadas, possivelmente pela compress&atilde;o do nervo facial ap&oacute;s a forma&ccedil;&atilde;o de um hematoma que se formou ap&oacute;s a ruptura de vasos que est&atilde;o em &iacute;ntimo contato com o epineuro. A paciente foi orientada a permanecer calma, o procedimento cir&uacute;rgico foi suspenso, e todas as orienta&ccedil;&otilde;es relativas ao tratamento e acompanhamento foram transmitidas &agrave; paciente que, ap&oacute;s 3 horas, j&aacute; apresentava os movimentos faciais recuperados e sem queixas (<a href="#fig02">Figuras. 2a</a>,<a href="#fig02">b</a>,<a href="#fig02">c</a>,<a href="#fig02">d</a>). Nenhuma medica&ccedil;&atilde;o ou tratamento espec&iacute;fico foi recomendado &agrave; paciente, com o procedimento cir&uacute;rgico sendo realizado ap&oacute;s duas semanas, sem intercorr&ecirc;ncias.</font></p>     <p><a name="fig02"></a></p>     <p>&nbsp;</p>     <p align="center"><img src="/img/revistas/rctbmf/v10n2/a02fig02.jpg"></p>     <p>&nbsp;</p>     <p><font size="3" face="Verdana"><b>DISCUSS&Atilde;O</b></font></p>     <p><font size="2" face="Verdana">Na literatura, s&atilde;o encontradas diferentes etiologias para a PNF, como: inje&ccedil;&atilde;o de anest&eacute;sicos locais, extra&ccedil;&atilde;o dent&aacute;ria, processos infecciosos, osteotomias, cirurgias pr&eacute;&#45;prot&eacute;ticas, excis&atilde;o de tumores e cistos, cirurgia da articula&ccedil;&atilde;o t&ecirc;mporo&#45;mandibular e tratamento das fraturas faciais e de pacientes fissurados<SUP>3&#45;5</SUP>. &Eacute; demonstrado, neste artigo, um caso de inje&ccedil;&atilde;o do agente anest&eacute;sico diretamente no nervo facial, o que pode ter provocado a ruptura de vasos, levando &agrave; forma&ccedil;&atilde;o de um hematoma, que, posteriormente, causou a compress&atilde;o do nervo, resultando no quadro de paralisia facial. O nervo facial percorre o interior da gl&acirc;ndula par&oacute;tida e se ramifica, inervando a regi&atilde;o temporal, supraorbit&aacute;ra, zigom&aacute;tica, bucal, maxilar, mandibular e cervical. Isso explica o in&iacute;cio r&aacute;pido dos sinais e sintomas relatados pela paciente e as regi&otilde;es afetadas. </font></p>     <p><font size="2" face="Verdana">Ling (1985)<SUP>2</SUP> apresenta um caso de paralisia perif&eacute;rica do nervo facial ap&oacute;s anestesia bucal em que foi utilizada a triamcinolona em altas doses no in&iacute;cio e gradual redu&ccedil;&atilde;o em sua dosagem com o passar do tempo, obtendo resultados satisfat&oacute;rios. Talzi; Soichot; Perrin (2003)<SUP>5</SUP> demonstram n&atilde;o haver necessidade do uso de aciclovir no tratamento das paralisias faciais causadas por agentes anest&eacute;sicos. Vasconcelos et al. (2006)<SUP>7</SUP> tamb&eacute;m n&atilde;o recomendam o uso de medica&ccedil;&atilde;o nesses casos, apenas nas situa&ccedil;&otilde;es de paralisia facial de Bell, em que a causa &eacute; desconhecida. As paralisias encontradas ap&oacute;s bloqueio das estruturas nervosas apresentam recupera&ccedil;&atilde;o ap&oacute;s algumas horas da t&eacute;cnica anest&eacute;sica, n&atilde;o necessitando, do nosso ponto de vista, fazer uso de qualquer medica&ccedil;&atilde;o. </font></p>     <p><font size="2" face="Verdana">Este trabalho demonstra a import&acirc;ncia do conhecimento anat&ocirc;mico da regi&atilde;o oro&#45;facial e das t&eacute;cnicas anest&eacute;sicas utilizadas para os procedimentos cir&uacute;rgicos da cavidade bucal. O conhecimento das complica&ccedil;&otilde;es inerentes aos procedimentos odontol&oacute;gicos &eacute; de suma import&acirc;ncia, para que o profissional possa identificar poss&iacute;veis problemas e seja capaz de explicar ao paciente o tratamento e suas consequ&ecirc;ncias.</font></p>     <p>&nbsp;</p>     ]]></body>
<body><![CDATA[<p><font size="3" face="Verdana"><B>REFER&Ecirc;NCIAS</B></font></p>     <!-- ref --><p><font size="2" face="Verdana">1. Gray RLM. Peripheral facial nerve paralysis of dental origin. Br J Oral Surg. 1978; 16:143&#45;50.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=440124&pid=S1808-5210201000020000200001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --> </font></p>     <!-- ref --><p><font size="2" face="Verdana">2. Ling KC. Peripheral facial nerve paralysis after local dental anesthesia. Oral Surg Oral Med Oral Pathol. 1985; 60:23&#45;4.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=440126&pid=S1808-5210201000020000200002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --> </font></p>     <!-- ref --><p><font size="2" face="Verdana">3. Burke RH, Adams JL. Immediate cranial nerve paralysis during removal of a mandibular third molar. Oral Surg Oral Med Oral Pathol. 1987; 63:172&#45;4.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=440128&pid=S1808-5210201000020000200003&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --> </font></p>     <!-- ref --><p><font size="2" face="Verdana">4. Shuaib A, Lee MA. Recurrent peripheral facial nerve palsy after dental procedures. Oral Surg Oral Med Oral Pathol. 1990; 70:738&#45;40.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=440130&pid=S1808-5210201000020000200004&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --> </font></p>     <!-- ref --><p><font size="2" face="Verdana">5. Tazi M, Soichot P, Perrin D. Facial palsy following dental extraction: report of 2 cases. J Oral Maxillofac Surg. 2003; 61:840&#45;4.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=440132&pid=S1808-5210201000020000200005&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     <!-- ref --><p><font size="2" face="Verdana">6. Bersen PLJA. Peripheral facial nerve paralysis after local upper dental anaesthesia. Eur Neurol. 1993; 33:90.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=440134&pid=S1808-5210201000020000200006&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     <!-- ref --><p><font size="2" face="Verdana">7. Vasconcelos BCE, Bessa&#45;Nogueira RV, Maurette PE, Carneiro SCSA. Facial nerve paralysis after impacted lower third molar surgery: A literature review and case report. Med Oral Patol Oral Cir Bucal. 2006; 11:175&#45;8.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=440136&pid=S1808-5210201000020000200007&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 size="2" face="Verdana"><b><a name="nt"></a><a href="#tx"><img src="/img/revistas/rctbmf/v10n2/seta.jpg" border="0"></a> Endere&ccedil;o para Correspond&ecirc;ncia</b>    <br>   Marcelo Rodrigues Azenha    <br>   R. Prudente de Moraes, 448/25,   Centro    ]]></body>
<body><![CDATA[<br>   Ribeir&atilde;o Preto/SP    <br>   14&#45;81256409 / 16&#45;81789938    <br>   <a href="mailto:marceloazenha@yahoo.com.br">marceloazenha@yahoo.com.br</a></font></p>     <p><font size="2" face="Verdana">Recebido em  08/12/2009    <br>   Aprovado em  09/02/2010</font></p>      ]]></body>
<back>
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