<?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>0034-7507</journal-id>
<journal-title><![CDATA[Revista Cubana de Estomatología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cubana Estomatol]]></abbrev-journal-title>
<issn>0034-7507</issn>
<publisher>
<publisher-name><![CDATA[Editorial Ciencias Médicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0034-75072015000400004</article-id>
<title-group>
<article-title xml:lang="pt"><![CDATA[Manifestações bucais em pacientes submetidos a tratamento quimioterápico]]></article-title>
<article-title xml:lang="es"><![CDATA[Manifestaciones orales en pacientes sometidos a quimioterapia]]></article-title>
<article-title xml:lang="en"><![CDATA[Oral manifestations in patients undergoing chemotherapy]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Campos de Araujo]]></surname>
<given-names><![CDATA[Thyago Leite]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martins Mesquita]]></surname>
<given-names><![CDATA[Lívia Karynne]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mendonça Vitorino]]></surname>
<given-names><![CDATA[Rayssa]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Nobre de Macedo]]></surname>
<given-names><![CDATA[Alana Kelly Maia]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[do Amaral]]></surname>
<given-names><![CDATA[Regiane Cristina]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fonseca Silva]]></surname>
<given-names><![CDATA[Thiago]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Faculdade Léao Sampaio Curso de Odontología ]]></institution>
<addr-line><![CDATA[Juazeiro do Norte CE]]></addr-line>
<country>Brasil</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Universidade Federal de Campina Grande Curso de Odontología ]]></institution>
<addr-line><![CDATA[Campina Grande PB]]></addr-line>
<country>Brasil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2015</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2015</year>
</pub-date>
<volume>52</volume>
<numero>4</numero>
<fpage>0</fpage>
<lpage>0</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0034-75072015000400004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0034-75072015000400004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0034-75072015000400004&amp;lng=en&amp;nrm=iso"></self-uri><kwd-group>
<kwd lng="pt"><![CDATA[saúde bucal]]></kwd>
<kwd lng="pt"><![CDATA[quimioterapia]]></kwd>
<kwd lng="pt"><![CDATA[neoplasias]]></kwd>
<kwd lng="es"><![CDATA[salud bucal]]></kwd>
<kwd lng="es"><![CDATA[quimioterapia]]></kwd>
<kwd lng="es"><![CDATA[cáncer]]></kwd>
<kwd lng="en"><![CDATA[oral health]]></kwd>
<kwd lng="en"><![CDATA[drug therapy]]></kwd>
<kwd lng="en"><![CDATA[neoplasms]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="right"> <font face="Verdana" size="2"><b>ART&#205;CULO ORIGINAL</b></font></p>     <p>&nbsp; </p>     <p> <font face="Verdana" size="2"><b><font size="4">Manifesta&#231;&#245;es bucais    em pacientes submetidos a tratamento quimioter&#225;pico</font></b></font></p>     <p>&nbsp;</p>     <p><font face="Verdana" size="2"> <b><font size="3">Manifestaciones orales en    pacientes sometidos a quimioterapia</font></b></font></p>     <p>&nbsp;</p>     <p><font size="3"><b><font face="Verdana, Arial, Helvetica, sans-serif"><b>Oral    manifestations in patients undergoing chemotherapy</b> </font></b></font></p>     <p>&nbsp;</p>     <p>&nbsp;</p>     <p><font face="Verdana" size="2"> <b>Thyago Leite Campos de Araujo,<sup>I </sup>L&#237;via    Karynne Martins Mesquita,<sup>I</sup> Rayssa Mendon&#231;a Vitorino,<sup>I</sup>    Alana Kelly Maia Nobre de Macedo,<sup>II</sup> Regiane Cristina do Amaral,<sup>I</sup>    Thiago Fonseca Silva,<sup>I</sup></b> </font></p>     ]]></body>
<body><![CDATA[<p><font face="Verdana" size="2"><sup>I</sup> Curso de Odontologia. Faculdade    Le&#227;o Sampaio &#8211;Juazeiro do Norte/CE/Brasil. </font>    <br>   <font face="Verdana" size="2"><sup>II</sup> Curso de Odontologia. Universidade    Federal de Campina Grande&#8211;Campina Grande/PB/Brasil. </font></p>     <p>&nbsp;</p>     <p>&nbsp;</p> <hr>     <p><font face="Verdana" size="2"><b>RESUMO</b> </font></p>     <p> <font face="Verdana" size="2"><b>Introdu&#231;&#227;o: </b> a quimioterapia    &#233; um tratamento antic&#226;ncer fundamentado na utiliza&#231;&#227;o de    f&#225;rmacos que induzem a morte das c&#233;lulas neopl&#225;sicas. A literatura    descreve que les&#245;es bucais podem surgir em consequ&#234;ncia do tratamento    quimioter&#225;pico.<b> </b> </font>    <br>   <font face="Verdana" size="2"><b>Objetivo:</b> identificar as manifesta&#231;&#245;es    bucais em pacientes submetidos &#224; quimioterapia atendidos no servi&#231;o    de referencia em oncologia da regi&#227;o sul do estado do Cear&#225;-Brasil.    </font>    <br>   <font face="Verdana" size="2"><b>M&#233;todos:</b> o presente estudo, do tipo    transversal descritivo, avaliou 73 pacientes acometidos por algum tipo de neoplasia    maligna e em tratamento quimioter&#225;pico no per&#237;odo de janeiro de 2013    a dezembro de 2014. Os dados clinico-patol&#243;gicos como idade, g&#234;nero,    diagn&#243;stico da neoplasia maligna, tipos de tratamentos antic&#226;ncer,    esquema medicamentoso quimioter&#225;pico, entre outros, foram obtidos a partir    dos prontu&#225;rios m&#233;dicos. Foram ainda realizados exames intrabucais    em todos os indiv&#237;duos desse estudo por um &#250;nico examinador especialista    em Estomatologia. </font>    <br>   <font face="Verdana" size="2"><b>Resultados:</b> dos 73 pacientes 29 (39,7 %)    eram do g&#234;nero masculino e 44 (60,3 %) do g&#234;nero feminino, com idade    m&#233;dia de 57,7 anos, sendo 37 (50,7 %) dos pacientes fumantes. A mama foi    o local mais prevalente de acometimento do c&#226;ncer (35,6 %). Os f&#225;rmacos    mais utilizados na terapia quimioter&#225;pica foram a aredia em 23,3 % dos    casos (n= 17) e o paclitaxel em 17,8 % (n= 13). Em rela&#231;&#227;o &#224;s    manifesta&#231;&#245;es bucais, dos 73 pacientes do estudo, 44 (60,2 %) apresentaram    algum tipo de desconforto bucal. A maioria dos pacientes, 77,3 % (n= 34), foram    diagnosticados com xerostomia e em 22,7 % (n= 10) foram observados mucosite.    <b>    <br>   Conclus&#227;o:</b> as manifesta&#231;&#245;es bucais encontradas em pacientes    em tratamento quimioter&#225;pico foram a xerostomia e a mucosite, sendo a xerostomia    a condi&#231;&#227;o patol&#243;gica bucal mais prevalente. </font></p>     ]]></body>
<body><![CDATA[<p><font face="Verdana" size="2"><b>Palavras-chave:</b> sa&#250;de bucal, quimioterapia,    neoplasias.</font></p> <hr>     <p><font face="Verdana" size="2"><b>RESUMEN</b> </font></p>     <p> <font face="Verdana" size="2"><b>Introducci&#243;n:</b> la quimioterapia es    un tratamiento basado en el uso de f&#225;rmacos anticancer&#237;genos que inducen    la muerte de las c&#233;lulas cancerosas. La literatura describe lesiones bucales    pueden surgir como resultado de la quimioterapia. <b>    <br>   Objetivo:</b> identificar las manifestaciones bucales en pacientes sometidos    a quimioterapia atendidos en el servicio de referencia en oncolog&#237;a en    Estado del Cear&#225;-Brasil. </font>    <br>   <font face="Verdana" size="2"><b>M&#233;todos:</b> se evaluaron 73 pacientes    afectados por alg&#250;n tipo de malignidad tratada con quimioterapia a partir    de enero de 2013 hasta el mes de diciembre del 2014. Los datos cl&#237;nicos    y patol&#243;gicos (edad, sexo, diagn&#243;stico de malignidad, tipos de tratamientos    con f&#225;rmacos de quimioterapia contra el c&#225;ncer, entre otros), se obtuvieron    de los registros m&#233;dicos. Tambi&#233;n se realizaron ex&#225;menes bucales    en todos los sujetos de este estudio por el experto en estomatolog&#237;a. </font>    <br>   <font face="Verdana" size="2"><b>Resultados:</b> de los 73 pacientes 29 (39,7    %) eran hombres y 44 (60,3 %) mujeres, con una edad media de 57,7 a&#241;os,    y 37 (50,7 %) eran fumadores. La mayor prevalencia del c&#225;ncer se observ&#243;    en la mama (35,6 %). Los f&#225;rmacos m&#225;s frecuentemente utilizados en    el tratamiento de quimioterapia fueron aredia en 23,3 % de los casos (n= 17)    y paclitaxel en el 17,8 % (n= 13). En relaci&#243;n con las enfermedades bucales,    de los 73 pacientes estudiados, 44 (60,2 %) ten&#237;an alg&#250;n tipo de malestar    bucal. La mayor&#237;a de los pacientes (77,3 %; n= 34) fueron diagnosticados    con xerostom&#237;a y 22,7 % (n= 10) con mucositis. </font>    <br>   <font face="Verdana" size="2"><b>Conclusi&#243;n:</b> las lesiones bucales que    se encontraron en los pacientes sometidos a quimioterapia fueron a xerostom&#237;a    y mucositis. La xerostom&#237;a fue la condici&#243;n patol&#243;gica bucal    m&#225;s frecuente. </font></p>     <p><font face="Verdana" size="2"><b>Palabras clave:</b> salud bucal, quimioterapia,    c&#225;ncer.</font></p> <hr>     <p><font face="Verdana" size="2"><b>ABSTRACT</b> </font></p>     <p> <font face="Verdana" size="2"><b>Introduction:</b> chemotherapy is a treatment    based on the use of anticancer drugs that induce the death of cancer cells.    The literature describes oral lesions may arise as a result of chemotherapy.    </font>    ]]></body>
<body><![CDATA[<br>   <font face="Verdana" size="2"><b>Objective:</b> to identify the oral manifestations    in patients undergoing chemotherapy treated at the reference service in oncology    southern state of Cear&#225; - Brazil. </font>    <br>   <font face="Verdana" size="2"><b>Methods:</b> we evaluated 73 patients affected    by some type of malignancy and chemotherapy from January of 2013 to December    of 2014. The clinical and pathological data such as age, gender, diagnosis of    malignancy, types of treatments anticancer chemotherapeutic drug treatment,    among others,were obtained from medical records. Were also carried out oral    examinations in all subjects of this study by the same examiner specialist in    stomatology. </font>    <br>   <font face="Verdana" size="2"><b>Results:</b> of the 73 patients 29 (39.7 %)    were male and 44 (60.3 %) females with a mean age of 57.7 years, and 37 (50.7    %) of smokers. Regarding malignancy, the mama was the most prevalent location    (35.6 %). The drugs most frequently used in chemotherapy treatment were aredia    in 23.3 % of cases (n= 17) and paclitaxel in 17.8 % (n= 13). In the oral manifestations,    of the 73 patients studied, 44 (60.2 %) had some type of oral discomfort. Most    patients, 77.3 % (n= 34) were diagnosed with xerostomia and 22.7 % (n= 10) were    observed mucositis. </font>    <br>   <font face="Verdana" size="2"><b>Conclusion:</b> oral lesions found in patients    undergoing chemotherapy were xerostomia and mucositis. Xerostomia being the    most prevalent oral pathological condition. </font></p>     <p> <font face="Verdana" size="2"><b>Key words: </b> oral health, drug therapy,    neoplasms.</font></p> <hr>     <p>&nbsp;</p>     <p>&nbsp;</p>     <p><font face="Verdana" size="2"><b><font size="3">INTRODU&#199;&#195;O</font></b>    </font></p>     <p><font face="Verdana" size="2"> Estima-se aproximadamente 576 mil novos casos    de c&#226;ncer no Brasil para o ano de 2015.<sup>1</sup> O c&#226;ncer consiste    em um grupo neoplasias malignas caracterizadas por prolifera&#231;&#227;o celular    descontrolada e descoordenada em rela&#231;&#227;o &#224;quela observada no    tecido normal, persistindo de maneira excessiva, mesmo ap&#243;s a retirada    do fator causal, levando &#224; perda gradativa da diferencia&#231;&#227;o.<sup>2</sup>    A carcinog&#234;nese &#233; compreendida como o resultado de m&#250;ltiplas    altera&#231;&#245;es gen&#233;ticas, epigen&#233;ticas e ambientais que atuam    no controle da prolifera&#231;&#227;o e diferencia&#231;&#227;o celular.<sup>3</sup>    </font></p>     <p><font face="Verdana" size="2"> As modalidades prim&#225;rias b&#225;sicas no    tratamento do c&#226;ncer envolvem cirurgia, quimioterapia e radioterapia. A    quimioterapia &#233; um tratamento antic&#226;ncer fundamentado na utiliza&#231;&#227;o    de f&#225;rmacos que atuam na fase mit&#243;tica das c&#233;lulas neopl&#225;sicas    a partir da a&#231;&#227;o citot&#243;xica e indu&#231;&#227;o de morte celular.<sup>4,5</sup>    </font></p>     ]]></body>
<body><![CDATA[<p><font face="Verdana" size="2"> Essa modalidade de tratamento traz in&#250;meros    efeitos colaterais, visto que n&#227;o afetam exclusivamente as c&#233;lulas    tumorais. Os efeitos mais frequentes incluem mielossupress&#227;o, n&#225;useas,    v&#244;mitos, diarreia e alopecia.<sup>6</sup> Em rela&#231;&#227;o a sa&#250;de    bucal, a literatura ainda ressalta que les&#245;es orais podem surgir em decorr&#234;ncia    da quimioterapia,<sup>7,8</sup> contudo ainda n&#227;o s&#227;o bem esclarecidas    as manifesta&#231;&#245;es bucais relacionadas a esse tratamento. </font></p>     <p><font face="Verdana" size="2"> O presente estudo teve como objetivo identificar    as manifesta&#231;&#245;es bucais em pacientes submetidos &#224; quimioterapia    atendidos no servi&#231;o refer&#234;ncia em oncologia, Hospital Maternidade    S&#227;o Vicente de Paula (HMSVP), localizado no sul do estado do Ceara, Brasil.    </font></p>     <p>&nbsp; </p>     <p><font face="Verdana" size="2"><b><font size="3">M&#201;TODOS</font></b> </font></p>     <p><font face="Verdana" size="2"> O presente estudo, do tipo transversal descritivo,    avaliou 73 pacientes que foram acometidos por algum tipo de neoplasia maligna    e em tratamento quimioter&#225;pico, atendidos no servi&#231;o refer&#234;ncia    em oncologia, Hospital Maternidade S&#227;o Vicente de Paula (HMSVP), localizado    no sul do estado do Ceara, Brasil, no per&#237;odo de janeiro de 2013 a dezembro    de 2014. Para a realiza&#231;&#227;o do presente estudo, o mesmo contou com    a aprova&#231;&#227;o do comit&#234; de &#233;tica em pesquisa (protocolo n&#186;    626.716). </font></p>     <p><font face="Verdana" size="2"> Os dados clinico-patol&#243;gicos como idade,    g&#234;nero, diagn&#243;stico da neoplasia maligna, tipos de tratamentos antic&#226;ncer,    esquema medicamentoso quimioter&#225;pico, doen&#231;as sist&#234;micas concomitantes,    outros medicamentos utilizados e h&#225;bito tabagista foram analisados, foram    obtidos atrav&#233;s dos registros dos prontu&#225;rios m&#233;dicos dos pacientes.    </font></p>     <p><font face="Verdana" size="2"> Exames intrabucais foram realizados em todos    os participantes do estudo por um &#250;nico examinador com forma&#231;&#227;o    em Estomatologia. Os pacientes foram examinados sentados numa cadeira comum    sob ilumina&#231;&#227;o artificial. Foi utilizado um abaixador de l&#237;ngua    est&#233;ril para afastar os tecidos moles bucais e, quando necess&#225;rio,    foram usadas compressas de gaze. As considera&#231;&#245;es sobre a avalia&#231;&#227;o    intrabucal de cada paciente foram registradas em uma ficha apropriada e posteriormente    analisadas. Quando alguma les&#227;o bucal foi observada, o paciente foi informado    e encaminhado ao setor Diagn&#243;stico Bucal da Faculdade de Odontologia Le&#227;o    Sampaio&#8211;Juazeiro do Norte/CE. </font></p>     <p><font face="Verdana" size="2"> Os dados obtidos foram digitados e tabulados    em programa de computador SPSS vers&#227;o 17.0 (Statistical Package for Social    Science), e posteriormente tratados com testes estat&#237;sticos descritivos.    </font></p>     <p>&nbsp; </p>     <p> <font face="Verdana" size="2"><b><font size="3">RESULTADOS</font></b> </font></p>     ]]></body>
<body><![CDATA[<p><font face="Verdana" size="2"> Dos 73 pacientes selecionados para o estudo,    29 (39,7 %) eram do g&#234;nero masculino e 44 (60,3 %) do g&#234;nero feminino,    com idade m&#233;dia de 57,7 anos (mediana de 59 anos), variando de 18 a 87    anos de idade, al&#233;m disso, 37 (50,7 %) dos pacientes eram fumantes. </font></p>     <p><font face="Verdana" size="2"> Em rela&#231;&#227;o &#224; localiza&#231;&#227;o    das neoplasias malignas, 26 (35,6 %) se apresentavam em mama, 11 (15,1 %) em    pr&#243;stata, 08 (11,0 %) em &#250;tero, 08 (11,0 %) em cabe&#231;a e pesco&#231;o,    07 (9,6 %) em tecido linf&#225;tico, 06 (8,2 %) em tecido hematopoi&#233;tico,    03 (4,1 %) em pulm&#227;o, 03 (4,1 %) em intestino e 01 (1,4 %) em ov&#225;rio.    </font></p>     <p><font face="Verdana" size="2"> Os f&#225;rmacos mais utilizados na terapia    quimioter&#225;pica foram a aredia em 23,3 % dos casos (n= 17) e o paclitaxel    em 17,8 % dos casos (n= 13). Medicamentos como, cisplatina, ciclofosfamida,    trastuzumab, entre outros, tamb&#233;m foram utilizados. Em rela&#231;&#227;o    &#224; classe dos medicamentos, observa-se que 80,8 % (n= 59) dos f&#225;rmacos    administrados para o tratamento das neoplasias eram agentes alquilantes, 4,1    % (n= 3) eram estimulador de col&#244;nia de granul&#243;citos e 15,1 % (n=    11) eram agentes de terapia-alvo monoclonal. </font></p>     <p><font face="Verdana" size="2"> Em rela&#231;&#227;o &#224;s manifesta&#231;&#245;es    bucais, dos 73 pacientes do estudo, 44 (60,2 %) apresentaram algum tipo de desconforto    bucal. A maioria dos pacientes, 77,3 % (n= 34), foram diagnosticados com xerostomia    e em 22,7 % (n= 10) foram observados mucosite (<a href="/img/revistas/est/v52n4/t0104415.pdf">Tabela</a>).</font></p>     <p>&nbsp;</p>     <p><font face="Verdana" size="2"><b><font size="3">DISCUSS&#195;O</font></b> </font></p>     <p><font face="Verdana" size="2"> A quimioterapia &#233; uma modalidade de tratamento    anti c&#226;ncer que visa a redu&#231;&#227;o ou elimina&#231;&#227;o das c&#233;lulas    neopl&#225;sicas por meio da atividade citot&#243;xica dos medicamentos utilizados.<sup>6,9</sup>    Contudo, &#233; importante ressaltar que os quimioter&#225;picos n&#227;o atuam    exclusivamente sobre as c&#233;lulas tumorais, estruturas normais que se renovam    constantemente, como a medula &#243;ssea, os pelos e a mucosa do tubo digestivo,    podem tamb&#233;m sofrer a a&#231;&#227;o dos quimioter&#225;picos.<sup>10</sup>    </font></p>     <p><font face="Verdana" size="2"> Recentes estudos sugerem que a mucosa bucal    pode ser diretamente afetada pela quimioterapia.<sup>11,12</sup> Os f&#225;rmacos    podem apresentar a&#231;&#227;o direta na mucosa bucal por meio da circula&#231;&#227;o    sangu&#237;nea, ou indiretamente, pela secre&#231;&#227;o das substancias quimioter&#225;picas    pela saliva.<sup>13,14</sup> Os efeitos dos medicamentos parecem estar ligados    diretamente &#224; redu&#231;&#227;o do potencial mit&#243;tico do epit&#233;lio    da mucosa bucal.<sup>7</sup> Nesse sentido, a diminui&#231;&#227;o da renova&#231;&#227;o    das c&#233;lulas na camada basal do epit&#233;lio pode resultar em atrofia e/ou    ulcera&#231;&#227;o da mucosa bucal seguido de inflama&#231;&#227;o.<sup>14</sup>    A exposi&#231;&#227;o da mucosa bucal aos medicamentos parece contribui para    o aparecimento de patologias como mucosite, xerostomia e sangramento gengival.<sup>12</sup>    O tipo e o grau de malignidade do tumor, bem como a dose dos medicamentos utilizados    e a dura&#231;&#227;o da quimioterapia parecem ser fatores determinantes para    a severidade das complica&#231;&#245;es bucais.<sup>15,16</sup> Entre as drogas    mais associadas &#224;s manifesta&#231;&#245;es bucais encontra-se teniposide,    paclitaxel, metotrexato, idarrubicina, epirrubicina, doxorrubicina, cisplatina    e citarabina.<sup>12,17</sup> </font></p>     <p><font face="Verdana" size="2"> Uma revis&#227;o sistem&#225;tica descreveu    uma preval&#234;ncia de xerostomia de 50 % durante a quimioterapia.<sup>18</sup>    Os nossos resultados mostraram que a xerostomia foi a condi&#231;&#227;o patol&#243;gica    bucal mais comum entre os pacientes em tratamento quimioter&#225;pico. Adicionalmente,    um estudo realizado na popula&#231;&#227;o chinesa demonstrou que 78 % dos pacientes    relatavam xerostomia quando da terapia medicamentosa antineoplasica. <sup>19</sup>    A literatura sugere que os quimioter&#225;picos podem alterar, quantitativa    e qualitativamente o fluxo salivar e os componentes da saliva, como a amilase    salivar e IgA.<sup>7,11,20</sup> Tal fato, poderia aumentar a viscosidade e    reduzir o fluxo salivar com consequente sensa&#231;&#227;o de boca seca, bem    como predisposi&#231;&#227;o a candidose oral e disfagia, al&#233;m de resultar    em aumento da incid&#234;ncia de infec&#231;&#245;es bucais por microrganismos.<sup>11,21,22</sup>    </font></p>     <p><font face="Verdana" size="2"> Estudos relatam que mais de 400 medicamentos    podem causar xerostomia.<sup>23</sup> Dentre os agentes quimioter&#225;picos    a literatura descreve que o paclitaxel, carboplatina, cisplatina, e 5-fluorouracil    s&#227;o medicamentos associados &#224; xerostomia.<sup>7,24,25</sup> Nossos    resultados demonstraram que os pacientes que utilizaram os quimioter&#225;picos    aredia, ciclofosfamida, cisplatina, paclitaxel e trastuzumab apresentaram xerostomia.    Esse fato sugere que os medicamentos utilizados na terapia antineoplasica podem    resultar na sensa&#231;&#227;o de boca seca, contudo ainda n&#227;o h&#225;    um consenso na literatura sobre quais f&#225;rmacos, de fato, est&#227;o associados    &#224; xerostomia. </font></p>     ]]></body>
<body><![CDATA[<p><font face="Verdana" size="2"> Outra condi&#231;&#227;o patol&#243;gica evidenciada    em nossos pacientes foi a mucosite. A literatura descreve muitas defini&#231;&#245;es    e classifica&#231;&#245;es para tal patologia.<sup>15,22,26,27</sup> contudo    a defini&#231;&#227;o de mucosite proposta por McCarthy et al., (1998), &#8220;ulcera&#231;&#227;o    ou inflama&#231;&#227;o da mucosa bucal que ocorre durante a quimioterapia,    n&#227;o podendo ser caracterizada clinicamente ou histologicamente como nenhuma    outra doen&#231;a&#8221;, parece ser a mais aceita entre os estudiosos do tema    por levar em considera&#231;&#227;o os crit&#233;rios de diagn&#243;stico para    a les&#227;o.<sup>27,28</sup> </font></p>     <p><font face="Verdana" size="2"> Diversos autores t&#234;m demonstrado que a    mucosite acomete entre 40% a 76 % dos pacientes sob tratamento quimioter&#225;pico,    contudo, ainda h&#225; uma grande discuss&#227;o sobre as taxas de preval&#234;ncia    dessa les&#227;o nos pacientes em terapia antic&#226;ncer.<sup>29-31</sup> A    varia&#231;&#227;o em rela&#231;&#227;o ao manejo, bem como os crit&#233;rios    de diagn&#243;stico utilizados para identificar a mucosite parecem ser um fator    complicador na aquisi&#231;&#227;o de dados fidedignos sobre a preval&#234;ncia    da les&#227;o e sua associa&#231;&#227;o com os agentes quimioter&#225;picos.<sup>32</sup>    Todavia, tal patologia &#233; considerada uma das mais comuns entre as desordens    orais associadas aos medicamentos antic&#226;ncer, sendo o 5-fluouracil e o    metotrexato os medicamentos mais associados ao aparecimento das les&#245;es.<sup>7,33</sup>    A mucosite parece ocorrer devido &#224; a&#231;&#227;o direta do quimioter&#225;pico    sobre as c&#233;lulas da camada basal do epit&#233;lio bucal. Compreende-se    que a patog&#234;nese dessa les&#227;o &#233; complexa e envolve diversas vias    como a libera&#231;&#227;o de esp&#233;cies reativas de oxig&#234;nio, transcri&#231;&#227;o    de NF-k&#946; e estimula&#231;&#227;o inflamat&#243;ria a partir da ativa&#231;&#227;o    das vias da cicloxigenase e libra&#231;&#227;o de citocinas como a interleucina    1 (IL1&#946;) e o fator de necrose tumoral (TNF-&#945;).<sup>32</sup> Nossos    resultados sugerem que os agentes alquilantes como a aredia, podem estar associados    ao aparecimento da mucosite, contudo vale ressaltar que ainda n&#227;o h&#225;    um consenso na literatura sobre quais f&#225;rmacos possuem o potencial de desenvolver    tal les&#227;o. </font></p>     <p><font face="Verdana" size="2"> A literatura sugere que diversas manifesta&#231;&#245;es    bucais s&#227;o relacionadas ao tratamento quimiotera&#769;pico A xerostomia    e a mucosite parecem ser as condi&#231;&#245;es patol&#243;gicas mais frequentes    que s&#227;o relacionadas ao tratamento antic&#226;ncer. A integra&#231;&#227;o    do cirurgi&#227;o dentista na equipe multiprofissional do tratamento do c&#226;ncer    &#233; de extrema import&#226;ncia para a realiza&#231;&#227;o do diagnostico,    tratamento e preven&#231;&#227;o das patologias relacionadas com a quimioterapia,    al&#233;m de possibilitar a constru&#231;&#227;o de dados mais fidedignos quanto    &#224; associa&#231;&#227;o da les&#227;o com o tratamento. O conhecimento aprofundado    a cerca dessas les&#245;es poderia proporcionar subs&#237;dios para minimizar    os efeitos delet&#233;rios da quimioterapia e melhorar a qualidade de vida dos    pacientes. </font></p>     <p>&nbsp;</p>     <p><font face="Verdana" size="3"><b>CONCLUS&#195;O</b></font><font face="Verdana" size="2">    </font></p>     <p><font face="Verdana" size="2"> A partir do presente estudo pode-se concluir    que as manifesta&#231;&#245;es bucais encontradas em pacientes em tratamento    quimioter&#225;pico s&#227;o a xerostomia e a mucosite; sendo a xerostomia a    condi&#231;&#227;o patol&#243;gica bucal mais prevalente.</font></p>     <p>&nbsp;</p>     <p> <font face="Verdana" size="2"><b><font size="3">REFER&#202;NCIAS BIBLIOGR&#193;FICAS</font></b>    </font></p>     <!-- ref --><p><font face="Verdana" size="2"> 1. Facina T. Estimativa 2014 &#8211; Incid&#234;ncia    de C&#226;ncer no Brasil. Rev Brasil Cancer. 2014;60(1):63-4.     </font></p>     ]]></body>
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