<?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>1646-5830</journal-id>
<journal-title><![CDATA[Acta Obstétrica e Ginecológica Portuguesa]]></journal-title>
<abbrev-journal-title><![CDATA[Acta Obstet Ginecol Port]]></abbrev-journal-title>
<issn>1646-5830</issn>
<publisher>
<publisher-name><![CDATA[Euromédice, Edições Médicas Lda.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1646-58302016000300011</article-id>
<title-group>
<article-title xml:lang="pt"><![CDATA[Endometriose: recomendações de consenso nacionais - tratamento médico]]></article-title>
<article-title xml:lang="en"><![CDATA[Endometriosis: medical treatment Portuguese consensus recommendation]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carvalho]]></surname>
<given-names><![CDATA[Maria João]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barbosa]]></surname>
<given-names><![CDATA[António]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Couto]]></surname>
<given-names><![CDATA[Daniela]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Geraldes]]></surname>
<given-names><![CDATA[Fernanda]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vilhena]]></surname>
<given-names><![CDATA[Isabel]]></given-names>
</name>
<xref ref-type="aff" rid="A04"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reis]]></surname>
<given-names><![CDATA[José Lourenço]]></given-names>
</name>
<xref ref-type="aff" rid="A05"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Damasceno]]></surname>
<given-names><![CDATA[José]]></given-names>
</name>
<xref ref-type="aff" rid="A06"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Figueiredo]]></surname>
<given-names><![CDATA[Sofia]]></given-names>
</name>
<xref ref-type="aff" rid="A07"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Águas]]></surname>
<given-names><![CDATA[Fernanda]]></given-names>
</name>
<xref ref-type="aff" rid="A08"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Centro Hospitalar e Universitário de Coimbra  ]]></institution>
<addr-line><![CDATA[Coimbra ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Universidade de Coimbra Faculdade de Medicina ]]></institution>
<addr-line><![CDATA[Coimbra ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="A03">
<institution><![CDATA[,Centro Hospitalar Gaia/Espinho  ]]></institution>
<addr-line><![CDATA[Gaia ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="A04">
<institution><![CDATA[,Centro Hospitalar e Universitário de Coimbra Serviço de Anestesiologia ]]></institution>
<addr-line><![CDATA[Coimbra ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="A05">
<institution><![CDATA[,Hospital Beatriz Ângelo Serviço de Ginecologia e Obstetrícia ]]></institution>
<addr-line><![CDATA[Loures ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="A06">
<institution><![CDATA[,Hospital São Teotónio  ]]></institution>
<addr-line><![CDATA[Viseu ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="A07">
<institution><![CDATA[,Maternidade Alfredo da Costa Serviço de Ginecologia e Obstetrícia ]]></institution>
<addr-line><![CDATA[Lisboa ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="A08">
<institution><![CDATA[,Centro Hospitalar e Universitário de Coimbra Serviço de Ginecologia A e B ]]></institution>
<addr-line><![CDATA[Coimbra ]]></addr-line>
<country>Portugal</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2016</year>
</pub-date>
<volume>10</volume>
<numero>3</numero>
<fpage>257</fpage>
<lpage>267</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S1646-58302016000300011&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S1646-58302016000300011&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S1646-58302016000300011&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Overview and aims: This article summarises the Portuguese endometriosis consensus elaborated in order to adapt to our population the consensus documents published in the literature. Endorsed by the Portuguese Society of Gynaecology, we established recommendations that provide guidance to our medical society to better decision making concerning the assistance of patients with endometriosis, to improve diagnosis and to optimize management. We expose here a short version of the second section of the guidelines, addressing the medical treatment of this disease. Study design and Methods: The European Society of Human Reproduction and Embryology (ESHRE) guideline for the diagnosis and treatment of endometriosis (2014) was the reference paper for these clinical recommendations in endometriosis. A group of experts in the field performed a thorough systematic search of the publications between January 2012 up to December 2014 and a quality assessment of the included papers. A consensus meeting with all members of the guidelines developing group reached the final version of the recommendations. Conclusions: The present clinical practice guidelines on endometriosis may improve the medical management in endometriosis-associated pain.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[endometriosis]]></kwd>
<kwd lng="en"><![CDATA[evidence based]]></kwd>
<kwd lng="en"><![CDATA[guidelines]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="right"><font size="2"><b>RECOMENDA&#199;&#213;ES DA SOCIEDADE PORTUGUESA DE GINECOLOGIA</b>/RECOMMENDATIONS OF THE PORTUGUESE SOCIETY OF GYNECOLOGY</font></p>     <p><font size="4"><b>Endometriose - recomenda&#231;&#245;es de consenso nacionais - tratamento m&#233;dico</b></font></p>     <p><font size="3"><b>Endometriosis - medical treatment&#160; Portuguese consensus recommendation </b></font></p>     <p><b>Grupo de trabalho constitu&#237;do por Maria Jo&#227;o Carvalho<sup>1</sup>, Ant&#243;nio Barbosa<sup>2</sup>, Daniela Couto<sup>3</sup>, Fernanda Geraldes<sup>4</sup>, Isabel Vilhena<sup>5</sup>, Jos&#233; Louren&#231;o Reis<sup>6</sup>, Jos&#233; Damasceno<sup>7</sup>, Sofia Figueiredo<sup>8</sup>, Fernanda &#193;guas<sup>9</sup>, pela Sociedade Portuguesa de Ginecologia</b></p>     <p>1. Assistente Hospitalar, Centro Hospitalar e Universit&#225;rio de Coimbra, Coimbra, Portugal. Assistente Convidada da Faculdade de Medicina da Universidade de Coimbra, Portugal</p>     <p>2. Assistente Hospitalar Graduado, Centro Hospitalar Gaia/Espinho, Portugal</p>     <p>3. Assistente Hospitalar, Centro Hospitalar e Universit&#225;rio de Coimbra, Coimbra, Portugal</p>     <p>4. Assistente Hospitalar Graduada, Centro Hospitalar e Universit&#225;rio de Coimbra, Coimbra, Portugal</p>     <p>5. Assistente Hospitalar Graduada do Servi&#231;o de Anestesiologia do Centro Hospitalar e Universit&#225;rio de Coimbra, Coimbra, Portugal</p>     <p>6. Assistente Hospitalar Graduado do Servi&#231;o de Ginecologia e Obstetr&#237;cia do Hospital Beatriz &#194;ngelo, Loures, Portugal</p>     ]]></body>
<body><![CDATA[<p>7. Assistente Hospitalar Graduado, Hospital S&#227;o Teot&#243;nio, Viseu, Portugal</p>     <p>8. Assistente Hospitalar do Servi&#231;o de Ginecologia e Obstetr&#237;cia da Maternidade Alfredo da Costa, Lisboa, Portugal</p>     <p>9. Assistente Graduada S&#233;nior, Diretora do Servi&#231;o de Ginecologia A e B, Centro Hospitalar e Universit&#225;rio de Coimbra, Coimbra, Portugal</p> <hr/>     <p>&nbsp;</p>     <p><b>ABSTRACT</b></p>     <p><b>Overview and aims:</b> This article summarises the Portuguese endometriosis consensus elaborated in order to adapt to our population the consensus documents published in the literature. Endorsed by the Portuguese Society of Gynaecology, we established recommendations that provide guidance to our medical society to better decision making concerning the assistance of patients with endometriosis, to improve diagnosis and to optimize management. We expose here a short version of the second section of the guidelines, addressing the medical treatment of this disease.</p>     <p><b>Study design and Methods:</b> The European Society of Human Reproduction and Embryology (ESHRE) guideline for the diagnosis and treatment of endometriosis (2014) was the reference paper for these clinical recommendations in endometriosis. A group of experts in the field performed a thorough systematic search of the publications between January 2012 up to December 2014 and a quality assessment of the included papers. A consensus meeting with all members of the guidelines developing group reached the final version of the recommendations. </p>     <p><b>Conclusions: </b>The present clinical practice guidelines on endometriosis may improve the medical management in endometriosis-associated pain.</p>     <p><b>Keywords: </b>endometriosis; evidence based; guidelines </p> <hr/>     <p>&nbsp;</p>     ]]></body>
<body><![CDATA[<p><b>Introdu&#231;&#227;o</b></p>     <p>Este artigo consiste na revis&#227;o e s&#250;mula de&nbsp;recomenda&#231;&#245;es&nbsp;elaboradas pelos autores,&nbsp;com o objetivo&nbsp;de&nbsp;adaptar &#224; realidade portuguesa os documentos&nbsp;de&nbsp;consenso&nbsp;publicados na literatura e, produzir e disponibilizar, &#224; nossa sociedade m&#233;dica, em conson&#226;ncia com a Sociedade Portuguesa&nbsp;de&nbsp;Ginecologia, diretrizes de pr&#225;tica cl&#237;nica fundamentadas para a tomada das melhores decis&#245;es quanto &#224; orienta&#231;&#227;o das doentes com endometriose.</p>     <p>Revemos aqui as orienta&#231;&#245;es relativas ao tratamento m&#233;dico desta doen&#231;a. </p>     <p>O tratamento ideal da endometriose n&#227;o est&#225; ainda definido e a investiga&#231;&#227;o existente revela algumas lacunas. Importa referir que os estudos com as terap&#234;uticas cl&#225;ssicas s&#227;o antigos, com m&#233;todos de diagn&#243;stico e imagem mais restritos do que os que atualmente dispomos. Os estudos randomizados com terap&#234;uticas mais recentes s&#227;o escassos, com amostras reduzidas e com limita&#231;&#245;es, at&#233; porque suscitariam quest&#245;es &#233;ticas desenhar ensaios cl&#237;nicos com controlo de placebo nesta doen&#231;a. </p>     <p>A mulher com dor p&#233;lvica e suspeita de endometriose pode ser tratada com terap&#234;utica m&#233;dica emp&#237;rica mesmo antes que seja estabelecido um diagn&#243;stico definitivo<sup>1</sup>.</p>     <p>Os implantes endometri&#243;ticos comportam-se como o endom&#233;trio funcional, da&#237; o recurso a medicamentos que diminuem ou inibem o crescimento do tecido endometrial causando hipomenorreia/amenorreia<sup>2</sup>. Os medicamentos atualmente utilizados criam um estado de hipoestrogenismo (agonistas da GnRh) ou um clima hiperprogestag&#233;nico (estroprogestativos e progestativos). </p>     <p>Todos estes tratamentos s&#227;o supressivos e n&#227;o curativos pelo que a recorr&#234;ncia da doen&#231;a &#233; a regra depois da sua descontinua&#231;&#227;o<sup>2</sup>. A terap&#234;utica m&#233;dica da endometriose deve ser encarada como um tratamento de longa dura&#231;&#227;o tal como qualquer outro utilizado em doen&#231;as inflamat&#243;rias cr&#243;nicas. Os analg&#233;sicos podem ser utilizados no tratamento da dor, isoladamente ou em associa&#231;&#227;o a um tratamento hormonal<sup>3</sup>. </p>     <p><b>Material e m&#233;todos</b></p>     <p>Estas recomenda&#231;&#245;es foram obtidas ap&#243;s uma an&#225;lise e avalia&#231;&#227;o rigorosa das evid&#234;ncias cient&#237;ficas dispon&#237;veis e, ap&#243;s discuss&#227;o e uma tomada de consenso dos autores, tendo por base as orienta&#231;&#245;es da <i>European Society of Human Reproduction and Embryology</i> (ESHRE).</p>     <p>Foi usada como alicerce de trabalho o documento <i>guidelines</i> para o diagn&#243;stico e tratamento em endometriose da ESHRE (2014)<sup>4</sup>, realizada uma pesquisa da literatura de artigos relevantes publicados at&#233; Dezembro de 2014 usando os termos<i>: endometriosis, medical treatment, hormonal contraception, progestin, estroprogestin, GnRh agonists, analgesics, systematic review, case controlled study, cohort study.</i></p>     ]]></body>
<body><![CDATA[<p>Foram na aus&#234;ncia de revis&#245;es sistem&#225;ticas ou estudos caso-controlo ou de coorte, valorizadas s&#233;ries de casos ou casos cl&#237;nicos relevantes, em fun&#231;&#227;o da hierarquia de evid&#234;ncia e graus de robustez da recomenda&#231;&#227;o<sup>7</sup> (<a href="#q1">Quadro I</a>). </p>     <p>&nbsp;</p>     <p align="center"><a name="q1"></a><img src="/img/revistas/aogp/v10n3/10n3a11q1.jpg"/></p>     
<p>&nbsp;</p>     <p><b>Tratamento m&#233;dico</b></p>     <p><b>tratamento hormonal</b></p>     <p><b>Estroprogestativos</b></p>     <p>Os estroprogestativos s&#227;o habitualmente a primeira linha para o tratamento da dor associada com endometriose<sup>5,6</sup>. Os estroprogestativos, pelo seu efeito anti-gonadotr&#243;fico, reduzem a produ&#231;&#227;o de estradiol e aumentam a decidualiza&#231;&#227;o condicionando a atrofia dos implantes endometri&#243;ticos. A dose de etinilestradiol utilizada nos contracetivos hormonais combinados (CHC) atualmente dispon&#237;veis n&#227;o &#233; suficiente para atingir o limiar de ativa&#231;&#227;o da doen&#231;a<sup>7</sup>. </p>     <p>Existem poucos ensaios cl&#237;nicos randomizados que avaliem a sua efic&#225;cia no tratamento da endometriose e que os comparem com outros tratamentos m&#233;dicos. N&#227;o h&#225; evid&#234;ncia inequ&#237;voca quanto ao regime ideal de administra&#231;&#227;o, c&#237;clico ou cont&#237;nuo. A COC administrada de forma cont&#237;nua, sem o per&#237;odo de pausa, foi considerada como mais ben&#233;fica para al&#237;vio de dor p&#233;lvica associada com endometriose. (ver <a href="#q2">Grupo de recom. 1</a>) </p>     <p>&nbsp;</p>     ]]></body>
<body><![CDATA[<p align="center"><a name="q2"></a><img src="/img/revistas/aogp/v10n3/10n3a11q2.jpg"/></p>     
<p>&nbsp;</p>     <p><b>Progestativos</b></p>     <p>O efeito anti-mit&#243;tico dos progestativos induz a decidualiza&#231;&#227;o do endom&#233;trio eut&#243;pico bem como do endom&#233;trio em localiza&#231;&#227;o ect&#243;pica com a consequente atrofia das les&#245;es de endometriose<sup>8,9</sup>. As indica&#231;&#245;es terap&#234;uticas dos progestativos englobam o controlo da dor, a redu&#231;&#227;o do tamanho das les&#245;es e a diminui&#231;&#227;o das recorr&#234;ncias p&#243;s-cir&#250;rgicas<sup>10</sup>. O dienogeste &#233; o progestativo mais estudado no contexto de endometriose. Combina as vantagens dos derivados da nortestosterona com os benef&#237;cios dos derivados da progesterona<sup>11-14</sup>.</p>     <p>Os progestativos orais e as f&#243;rmulas <i>depot</i> s&#227;o equivalentes aos agonistas da GnRH e &#224; CHC no al&#237;vio da dor associada a endometriose. O sistema intrauterino com levonorgestrel (SIU-LNG) surge como uma alternativa eficaz no tratamento m&#233;dico da endometriose. A efic&#225;cia do implante contracetivo com etonogestrel no controlo das queixas de endometriose foi comprovada mas o padr&#227;o irregular da hemorragia, limita a sua utiliza&#231;&#227;o como op&#231;&#227;o na abordagem farmacol&#243;gica da endometriose<sup>15</sup>. (ver <a href="#q3">Grupo de recom. 2</a>) </p>     <p>&nbsp;</p>     <p align="center"><a name="q3"></a><img src="/img/revistas/aogp/v10n3/10n3a11q3.jpg"/></p>     
<p>&nbsp;</p>     <p><b>Agonistas da GnRH</b></p>     <p>Os agonistas da GnRH s&#227;o uma das terap&#234;uticas aprovadas para tratamento da endometriose<sup>16</sup>. O mecanismo de a&#231;&#227;o destes f&#225;rmacos exerce-se na liga&#231;&#227;o cont&#237;nua e n&#227;o puls&#225;til aos recetores da GnRH provocando assim a dessensibiliza&#231;&#227;o hipofis&#225;ria e a interrup&#231;&#227;o do eixo hip&#243;fise/ov&#225;rio levando a um estado hormonal de hipogonadismo hipogonadotr&#243;fico<sup>17</sup>. O hipoestrogenismo condiciona atrofia endometrial levando a amenorreia secund&#225;ria e a uma a&#231;&#227;o direta local nos implantes de endometriose<sup>18-20</sup>. </p>     ]]></body>
<body><![CDATA[<p>As limita&#231;&#245;es desta terap&#234;utica s&#227;o por um lado uma taxa de recorr&#234;ncia elevada (50%) ap&#243;s 6 meses de interrup&#231;&#227;o deste tratamento e os efeitos associados ao hipoestrogenismo simulando uma menopausa tais como a perda de densidade mineral &#243;ssea, sintomatologia vasomotora, atrofia urogenital, diminui&#231;&#227;o da l&#237;bido, depress&#227;o e altera&#231;&#227;o do lipidograma<sup>21-23</sup>. </p>     <p>A terap&#234;utica com agonistas da GnRH &#233; considerada de segunda linha quando os estroprogestativos falham, n&#227;o s&#227;o tolerados ou s&#227;o contraindicados<sup>8,9,22</sup>.</p>     <p>A terap&#234;utica hormonal <i>add-back</i> tem como objetivo aumentar a ades&#227;o ao tratamento e possibilitar o uso mais prolongado dos agonistas da GnRH, nas mulheres com endometriose. A prescri&#231;&#227;o de tratamento hormonal para normalizar os n&#237;veis de estrog&#233;nios tem como objetivo reduzir os efeitos adversos - perda de massa &#243;ssea e sintomatologia vasomotora - sem interferir na efic&#225;cia<sup>17,24</sup>. </p>     <p>Embora as <i>guidelines</i> recomendem o uso de terap&#234;uticas de <i>add-back</i>, esta prescri&#231;&#227;o ocorre apenas num ter&#231;o destas mulheres<sup>25</sup>. T&#234;m sido utilizados diferentes regimes, hormonais e n&#227;o hormonais, incluindo o uso de progestativos e estrog&#233;nios isolados, estroprogestativos e a tibolona<sup>26,27</sup>. (ver <a href="#q4">Grupo de recom. 3</a>)</p>     <p>&nbsp;</p>     <p align="center"><a name="q4"></a><img src="/img/revistas/aogp/v10n3/10n3a11q4.jpg"/></p>     
<p>&nbsp;</p>     <p><b>Inibidores da aromatase</b></p>     <p>Os inibidores da aromatase constituem um grupo farmacol&#243;gico que atua por inibi&#231;&#227;o ou inativa&#231;&#227;o da aromatase, enzima que catalisa a convers&#227;o de androg&#233;nios em estrog&#233;nios. V&#225;rios estudos sugerem que a aromatase P450 est&#225; sobre-expressa tanto no endom&#233;trio eut&#243;pico como nos implantes endometri&#243;ides em mulheres com endometriose<sup>28-32</sup>. </p>     <p>Na pr&#233;&#769;-menopausa, os estudos revelam pouca efic&#225;cia dos inibidores da aromatase devido ao aumento da secre&#231;&#227;o de gonadotrofinas, por <i>feedback</i> negativo do hipoestrogenismo por eles induzido ao n&#237;vel do hipot&#225;lamo e da hip&#243;fise, resultando na estimula&#231;&#227;o ov&#225;rica e aumento dos n&#237;veis de estradiol de origem ov&#225;rica. Consequentemente, o uso de inibidores da aromatase no tratamento da endometriose dever&#225; ocorrer em associa&#231;&#227;o com outros tratamentos com a&#231;&#227;o antigonadotr&#243;fica, como os estroprogestivos, os progestativos e/ou os agonistas da GnRH, para que seja bloqueada a produ&#231;&#227;o ov&#225;rica e extra-ov&#225;rica de estrog&#233;nios<sup>5,33-35</sup>. (ver <a href="#q5">Grupo de recom. 4</a>)</p>     ]]></body>
<body><![CDATA[<p>&nbsp;</p>     <p align="center"><a name="q5"></a><img src="/img/revistas/aogp/v10n3/10n3a11q5.jpg"/></p>     
<p>&nbsp;</p>     <p><b>Antagonistas da progesterona e Moduladores seletivos dos recetores de progesterona</b></p>     <p>Os moduladores seletivos dos recetores de progesterona (MSRP) s&#227;o subst&#226;ncias sint&#233;ticas derivadas dos esteroides, que t&#234;m a capacidade de se ligar aos recetores da progesterona, podendo desempenhar atividade agonista, antagonista ou mista consoante o tecido em que atuem<sup>36</sup>.</p>     <p>Os MSRP inibem a ovula&#231;&#227;o e muitas mulheres tornam-se amenorreicas, mantendo no entanto n&#237;veis fisiol&#243;gicos de estrog&#233;nios circulantes. O racional para uso dos MSRP na endometriose reside na inibi&#231;&#227;o seletiva da prolifera&#231;&#227;o endometrial e na potencial supress&#227;o da produ&#231;&#227;o de prostaglandinas pelo tecido endometrial, mantendo os n&#237;veis de estrog&#233;nios circulantes. A interrup&#231;&#227;o da ovula&#231;&#227;o &#233; em parte respons&#225;vel pela amenorreia, mas h&#225; concomitantemente altera&#231;&#245;es &#250;nicas a n&#237;vel endometrial, designadas como <i>progesterone receptor modulator associated endometrial changes </i>(PAEC).</p>     <p>&#192; data apenas a mifepristona e o acetato de ulipristal est&#227;o aprovados para uso cl&#237;nico para outras indica&#231;&#245;es, ainda que outros f&#225;rmacos estejam em fase avan&#231;ada de investiga&#231;&#227;o. (ver <a href="#q6">Considera&#231;&#245;es</a>)</p>     <p>&nbsp;</p>     <p align="center"><a name="q6"></a><img src="/img/revistas/aogp/v10n3/10n3a11q6.jpg"/></p>     
<p>&nbsp;</p>     ]]></body>
<body><![CDATA[<p><b>Outras terap&#234;uticas</b></p>     <p>A terap&#234;utica m&#233;dica mais usada na endometriose passa presentemente pelos contracetivos hormonais e pelos agonistas GnRH cuja efic&#225;cia est&#225; estabelecida. </p>     <p>As novas &#225;reas de investiga&#231;&#227;o incidem sobretudo na resposta inflamat&#243;ria, resposta hormonal, na sobreviv&#234;ncia, prolifera&#231;&#227;o e invas&#227;o celulares e na neoangiog&#233;nese<sup>37</sup>. As estatinas, pelo seu papel de inibi&#231;&#227;o da prolifera&#231;&#227;o celular, s&#227;o vistas com potencial interesse mas ainda est&#227;o em fase de estudo de investiga&#231;&#227;o pr&#233;-cl&#237;nica<sup>38</sup>. Os agentes de desmetila&#231;&#227;o e os inibidores da desacetilase das histonas (HDACI), podem interferir nos processos de silenciamento gen&#233;tico reativando genes, antes inativados por hipermetila&#231;&#227;o dos promotores (ex. gene do recetor da progesterona). Os RCT com inibidor da COX-2 <i>versus</i> placebo, revelaram melhor controlo da dor no grupo tratado<sup>39</sup>. A pentoxifilina utilizada durante 6 meses em p&#243;s-operat&#243;rio quando comparada com placebo revelou melhoria significativa da dor<sup>40</sup></p>     <p>A terap&#234;utica com imunomoduladores &#233; uma outra possibilidade ainda em investiga&#231;&#227;o. Num RCT com interferon alfa-2b intra-peritoneal <i>versus</i> solu&#231;&#227;o salina verificou-se menor taxa de recorr&#234;ncia p&#243;s-operat&#243;ria aos 12 meses<sup>41</sup>. A inje&#231;&#227;o intra-qu&#237;stica de IL-12 em mulheres com endometriomas tratadas com agonistas da GnRH revelou menor taxa de recorr&#234;ncia<sup>42</sup>. O infliximab, anti-fator de necrose tumoral (TNF, do ingl&#234;s <i>tumoral necrosis factor</i>) durante tr&#234;s meses melhorou a dor e o volume dos n&#243;dulos endometri&#243;ticos e a sensibilidade p&#233;lvica comparando com placebo<sup>43</sup>.</p>     <p>Um f&#225;rmaco seletivo, com efeito somente no endom&#233;trio ect&#243;pico, ainda n&#227;o est&#225; dispon&#237;vel. Portanto, de momento, fica-nos a manipula&#231;&#227;o hormonal como a principal forma de estabilizar o crescimento das les&#245;es e frenar a progress&#227;o da doen&#231;a<sup>3</sup>.</p>     <p><b>Situa&#231;&#245;es especiais</b></p>     <p><b>Infertilidade</b></p>     <p>A endometriose est&#225; presente em 10 a 22% das mulheres f&#233;rteis e em 20-25% da popula&#231;&#227;o feminina inf&#233;rtil. Por outro lado, 30 a 50% das mulheres com endometriose t&#234;m infertilidade<sup>4,44</sup>. </p>     <p><b>Ser&#225; a terap&#234;utica m&#233;dica hormonal eficaz no tratamento da infertilidade associada &#224; endometriose? </b></p>     <p>Esta quest&#227;o foi exaustivamente analisada numa revis&#227;o da <i>Cochrane</i><sup>45</sup>. A supress&#227;o ov&#225;rica efetuada com agonistas da GnRH ou com estroprogestativos n&#227;o &#233; eficaz quando utilizada para tentar melhorar a fertilidade associada a endometriose m&#237;nima. Um estudo randomizado controlado em doentes com endometriose moderada/grave, com agonistas da GnRh ap&#243;s tratamento por laparoscopia, n&#227;o mostrou superioridade em rela&#231;&#227;o &#224; atitude expectante no que diz respeito a taxas de conce&#231;&#227;o natural, durante um per&#237;odo de <i>follow-up</i> de 5 anos<sup>46</sup>. </p>     ]]></body>
<body><![CDATA[<p><b>A terap&#234;utica m&#233;dica tem interesse previamente &#224; insemina&#231;&#227;o intrauterina nas mulheres com infertilidade associada endometriose? </b></p>     <p>A terap&#234;utica m&#233;dica pr&#233;via &#224; insemina&#231;&#227;o intrauterina (IIU), nomeadamente com agonistas da GnRh, n&#227;o est&#225; recomendada, uma vez que n&#227;o h&#225; estudos que demonstrem qualquer benef&#237;cio<sup>47</sup>.</p>     <p><b>Quais s&#227;o as implica&#231;&#245;es da endometriose nas taxas de sucesso das TRA?</b></p>     <p>A &#250;nica revis&#227;o sistem&#225;tica sobre o tema conclui que as taxas de gravidez no sub-grupo de mulheres com endometriose no estadio I/II n&#227;o s&#227;o diferentes das obtidas no grupo de mulheres com fator tub&#225;rio. J&#225; para o grupo de mulheres com endometriose no estadio III/IV a taxa de gravidez &#233; significativamente inferior<sup>48</sup>. N&#227;o parece haver diferen&#231;a nas taxas de gravidez obtidas com protocolo com antagonistas da GnRH ou agonistas da GnRH nas mulheres com endometriose m&#237;nima/ligeira e endometriomas<sup>49</sup>.</p>     <p><b>A estimula&#231;&#227;o ov&#225;rica controlada agrava a endometriose? </b></p>     <p>A evid&#234;ncia dispon&#237;vel n&#227;o sugere um agravamento da doen&#231;a ap&#243;s estimula&#231;&#227;o ov&#225;rica para fertiliza&#231;&#227;o <i>in vitro</i> (FIV) <i>/</i> inje&#231;&#227;o intracitoplasm&#225;tica (ICSI, do ingl&#234;s <i>intracytoplasmic sperm injection</i>)<sup>50-53</sup>.</p>     <p>Recomenda-se a realiza&#231;&#227;o de procria&#231;&#227;o medicamente assistida (PMA) nas mulheres com infertilidade e endometriose, sobretudo nas situa&#231;&#245;es associadas a fator masculino, tub&#225;rio ou no caso de insucesso de outras terap&#234;uticas. </p>     <p><b>Ser&#225; a terap&#234;utica adjuvante &#224;s TRA &#250;til no tratamento da infertilidade associada &#224; endometriose? </b></p>     <p>A terap&#234;utica melhor estudada &#233; a utiliza&#231;&#227;o de agonistas da GnRH e foi alvo de uma revis&#227;o da Cochrane que incluiu 3 artigos<sup>47,54,55</sup>. A dessensibiliza&#231;&#227;o hipofis&#225;ria com agonistas da GnRH durante 3 a 6 meses em mulheres com endometriose aumenta a probabilidade de gravidez cl&#237;nica cerca de 4 vezes<sup>56</sup>. A terap&#234;utica com estroprogestativos tem sido tamb&#233;m utilizada, n&#227;o existindo evid&#234;ncia que suporte esta op&#231;&#227;o terap&#234;utica. Tem sido proposto que o efeito ben&#233;fico dos agonistas da GnRh resulta da melhoria na recetividade endometrial ou da melhoria da qualidade ovocit&#225;ria/embrion&#225;ria<sup>57</sup>. Os efeitos anti-proliferativos e pr&#243;-apopt&#243;ticos dos agonistas da GnRH podem ter efeito ben&#233;fico nas taxas de gravidez ap&#243;s transfer&#234;ncia de embri&#245;es congelados<sup>58-60</sup>. (ver <a href="#q7">Grupo de recom. 5</a>)</p>     <p>&nbsp;</p>     ]]></body>
<body><![CDATA[<p align="center"><a name="q7"></a><img src="/img/revistas/aogp/v10n3/10n3a11q7.jpg"/></p>     
<p>&nbsp;</p>     <p><b>Tratamento hormonal da p&#243;s-menopausa na mulher com endometriose</b></p>     <p>A endometriose &#233; uma doen&#231;a estrog&#233;nio dependente e como tal atinge a mulher jovem em idade reprodutora. Depois da menopausa o crescimento dos implantes endometri&#243;ticos &#233; suprimido em resultado da redu&#231;&#227;o da produ&#231;&#227;o de estrog&#233;nios pelo ov&#225;rio e verifica-se uma melhoria dos sintomas. Cerca de 96,9% das mulheres com endometriose deixam de ter dores na menopausa.</p>     <p>A terap&#234;utica hormonal p&#243;s-menopausa na mulher com hist&#243;ria de endometriose pode reativar a doen&#231;a e a sintomatologia a ela inerente. H&#225; ainda a considerar o potencial de transforma&#231;&#227;o maligna das les&#245;es de endometriose ap&#243;s a menopausa, espontaneamente ou associado ao uso de terap&#234;utica hormonal<sup>61</sup>.</p>     <p>Por outro lado a mulher com hist&#243;ria de endometriose pode ter um risco aumentado de doen&#231;as associadas &#224; priva&#231;&#227;o de estrog&#233;nios fruto do uso de algumas terap&#234;uticas m&#233;dicas como os agonistas da GnRh ou de uma fal&#234;ncia ov&#225;rica precoce devido a sucessivas cirurgias ou mesmo de uma menopausa cir&#250;rgica precoce, terap&#234;utica que por vezes &#233; adotada quando falham todas as estrat&#233;gias para controlo da doen&#231;a.</p>     <p>O uso de estrog&#233;nios em baixas doses associados a progestativos ou a tibolona, s&#227;o as alternativas terap&#234;uticas mais seguras tanto em mulheres histerectomizadas como naquelas que conservam o &#250;tero<sup>62,63</sup>.</p>     <p>N&#227;o h&#225; estudos que analisem com rigor qual o melhor regime terap&#234;utico mas o conhecimento dos efeitos da associa&#231;&#227;o estrog&#233;nio com progestativos em administra&#231;&#227;o cont&#237;nua combinada dever&#225; fazer com que este seja o regime preferencialmente recomendado<sup>4,64</sup>.</p>     <p>A tibolona tem sido amplamente utilizada na endometriose como terap&#234;utica de <i>add-back</i> no uso de an&#225;logos da GnRh e &#233; considerada uma hip&#243;tese eficaz e segura no tratamento hormonal da mulher com hist&#243;ria de endometriose<sup>4,64</sup>. (ver <a href="#q8">Grupo de recom. 6</a>)</p>     <p>&nbsp;</p>     ]]></body>
<body><![CDATA[<p align="center"><a name="q8"></a><img src="/img/revistas/aogp/v10n3/10n3a11q8.jpg"/></p>     
<p>&nbsp;</p>     <p><b>Terap&#234;utica m&#233;dica nas adolescentes com endometriose</b></p>     <p>A endometriose &#233; uma hip&#243;tese de diagn&#243;stico que deve ser considerada nas adolescentes com dor p&#233;lvica cr&#243;nica e nas das adolescentes com dismenorreia ou dor p&#233;lvica resistente &#224; toma de estroprogestativos ou anti-inflamat&#243;rios n&#227;o ester&#243;ides<sup>65-67</sup>. Na adolesc&#234;ncia existe uma associa&#231;&#227;o entre endometriose e anomalias cong&#233;nitas do aparelho genital, 11% das adolescentes com endometriose apresentam anomalias mullerianas e 76% de adolescentes com anomalias obstrutivas t&#234;m endometriose<sup>68,69</sup>. O tratamento emp&#237;rico com estroprogestativos ou anti-inflamat&#243;rios n&#227;o esteroides (AINE) durante 3 ciclos poder&#225; ser a abordagem inicial. Os agonistas da GnRh podem ser utilizados em jovens com mais de 16 anos resistentes a outras terap&#234;uticas e com o diagn&#243;stico histol&#243;gico de endometriose obtido ap&#243;s laparoscopia. N&#227;o &#233; aceit&#225;vel que antes dos 18 anos se utilize um tratamento emp&#237;rico com agonistas da GnRh<sup>68-70</sup>. Deve ser sempre associada terap&#234;utica de <i>add-back</i>, incluindo c&#225;lcio e vitamina D e monitorizada a densidade mineral &#243;ssea atrav&#233;s de densitometria<sup>70</sup>. Este regime pode ser utilizado por per&#237;odos de 3 a 6 meses seguido de estroprogestativos em administra&#231;&#227;o cont&#237;nua ou de ciclo longo. O tratamento m&#233;dico dever&#225; tamb&#233;m ser utilizado ap&#243;s a cirurgia at&#233; &#224; idade em a maternidade seja desejada<sup>71,72</sup>. Progestativos orais ou em implantes subcut&#226;neos ou SIU-LNG, podem ser uma alternativa aos estroprogestativos; contudo os seus efeitos ainda n&#227;o est&#227;o bem estudados nas adolescentes<sup>69</sup>. (ver <a href="#q9">Grupo de recom. 7</a>)</p>     <p>&nbsp;</p>     <p align="center"><a name="q9"></a><img src="/img/revistas/aogp/v10n3/10n3a11q9.jpg"/></p>     
<p>&nbsp;</p>     <p><b>Tratamento m&#233;dico pr&#233;-cirurgia </b></p>     <p>A endometriose &#233; uma patologia cr&#243;nica, que requer uma abordagem a longo prazo. Neste contexto &#233; relevante a otimiza&#231;&#227;o da terap&#234;utica m&#233;dica, evitando procedimentos cir&#250;rgicos repetidos. &#201; comum, na pr&#225;tica cl&#237;nica, a prescri&#231;&#227;o de terap&#234;utica hormonal pr&#233;-operat&#243;ria, nomeadamente agonistas GnRh com o intuito de facilitar o procedimento cir&#250;rgico, assumindo que a terap&#234;utica m&#233;dica possa diminuir a inflama&#231;&#227;o, vasculariza&#231;&#227;o e ader&#234;ncias das les&#245;es de endometriose. A revis&#227;o da <i>Cochrane</i> faz refer&#234;ncia a 2 estudos em mulheres em idade reprodutora, que abordam o tema da terap&#234;utica m&#233;dica pr&#233;-cir&#250;rgica, concluiu que n&#227;o existe evid&#234;ncia de benef&#237;cio na terap&#234;utica m&#233;dica pr&#233;-operat&#243;ria<sup>73</sup>. (ver <a href="#q10">Grupo de recom. 8</a>)</p>     <p>&nbsp;</p>     ]]></body>
<body><![CDATA[<p align="center"><a name="q10"></a><img src="/img/revistas/aogp/v10n3/10n3a11q10.jpg"/></p>     
<p>&nbsp;</p>     <p><b>Tratamento m&#233;dico p&#243;s-cirurgia </b></p>     <p>A cirurgia n&#227;o afeta o mecanismo patog&#233;nico da endometriose, pelo que os sintomas e recorr&#234;ncia das les&#245;es s&#227;o frequentes (40-50% a cinco anos) quando n&#227;o &#233; institu&#237;da terap&#234;utica p&#243;s-operat&#243;ria<sup>74</sup> em particular a recorr&#234;ncia dos endometriomas &#233; de 10% ao ano nos primeiros tr&#234;s anos ap&#243;s a cirurgia<sup>75</sup>. A terap&#234;utica m&#233;dica hormonal, ap&#243;s cirurgia de endometriose, pode ser considerada para preven&#231;&#227;o da recorr&#234;ncia de dor (dismenorreia, dispareunia e dor p&#233;lvica n&#227;o relacionada com a menstrua&#231;&#227;o) e/ou preven&#231;&#227;o de recorr&#234;ncia da doen&#231;a (recorr&#234;ncia de endometriomas e/ou outras les&#245;es de endometriose). </p>     <p>A terap&#234;utica hormonal adjuvante p&#243;s-operat&#243;ria pode ser considerada no regime de curta dura&#231;&#227;o (inferior a 6 meses), em que o objetivo &#233; melhorar o resultado cir&#250;rgico e a longo termo (superior a 6 meses), cujo objetivo &#233; a preven&#231;&#227;o secund&#225;ria das les&#245;es e sintomatologia associada<sup>75,76</sup>.</p>     <p>No que respeita &#224; influ&#234;ncia do tratamento p&#243;s-cirurgia na fertilidade, n&#227;o foi encontrada evid&#234;ncia que suporte o uso de terap&#234;utica m&#233;dica no p&#243;s-operat&#243;rio com o intuito de aumentar a taxa de gravidez<sup>77,78</sup>. (ver <a href="#q11">Grupo de recom. 9</a>)</p>     <p>&nbsp;</p>     <p align="center"><a name="q11"></a><img src="/img/revistas/aogp/v10n3/10n3a11q11.jpg"/></p>     
<p>&nbsp;</p>     <p><b>Tratamento da dor cr&#243;nica</b></p>     ]]></body>
<body><![CDATA[<p>A Sociedade Internacional de Dor P&#233;lvica define-a como dor c&#237;clica ou n&#227;o c&#237;clica com dura&#231;&#227;o superior a 6 meses, localizada &#224; p&#233;lvis, ao abd&#243;men infra umbilical ou regi&#227;o lombar suficientemente grave para causar incapacidade funcional ou psicol&#243;gica e requerendo interven&#231;&#227;o e tratamento. A n&#237;vel fisiopatol&#243;gico &#233; uma dor complexa envolvendo os 3 mecanismos da dor: som&#225;tico, visceral e neurop&#225;tico<sup>79</sup>.</p>     <p>Estudos atuais sustentam que a endometriose gera um estado inflamat&#243;rio com produ&#231;&#227;o de citocinas, fatores de crescimento, recrutamento de macr&#243;fagos e outras c&#233;lulas inflamat&#243;rias com ativa&#231;&#227;o de toda a cascata inflamat&#243;ria<sup>80</sup>.</p>     <p>Alguns estudos comprovaram n&#227;o haver rela&#231;&#227;o entre a extens&#227;o da les&#227;o e a doen&#231;a, mas sim a sua localiza&#231;&#227;o e profundidade<sup>81</sup>.Est&#225; tamb&#233;m comprovado a exist&#234;ncia de maior densidade de nociceptores nos tecidos afetados por endometriose, nomeadamente pr&#243;ximo das gl&#226;ndulas endometriais e vasos sangu&#237;neos<sup>80</sup>.</p>     <p>A dor na endometriose &#233; referida mais frequentemente por dismenorreia, dispareunia profunda e dor p&#233;lvica cr&#243;nica n&#227;o menstrual<sup>82</sup>. Estudos baseados na avalia&#231;&#227;o da dor na endometriose recomendam a utiliza&#231;&#227;o da Escala Visual Anal&#243;gica (EVA) para avaliar a intensidade da dor. &#201; tamb&#233;m importante o registo di&#225;rio da dor, distinguindo a dismenorreia da dor p&#233;lvica<sup>82</sup>. A abordagem terap&#234;utica dever&#225; ser multidisciplinar e personalizada, combinando terap&#234;uticas farmacol&#243;gicas com terapias n&#227;o farmacol&#243;gicas e psicoterapia<sup>83</sup>.</p>     <p>Os f&#225;rmacos utilizados no tratamento da dor pertencem aos seguintes grupos: analg&#233;sicos n&#227;o opi&#243;ides (primeira op&#231;&#227;o terap&#234;utica na dor ligeira, EVA 1-3); analg&#233;sicos opi&#243;ides (dor moderada, EVA 4-6); opi&#243;ides fortes (dor severa, EVA 7-10), a sua utiliza&#231;&#227;o dever&#225; ser reservada a unidades de dor. Podem ser utilizados concomitantemente f&#225;rmacos com ac&#231;&#227;o co-adjuvante tais como os anti-depressivos e os anti-convulsivantes. (ver <a href="#q12">Grupo de recom. 10</a>)</p>     <p>&nbsp;</p>     <p align="center"><a name="q12"></a><img src="/img/revistas/aogp/v10n3/10n3a11q12.jpg"/></p>     
<p>&nbsp;</p>     <p>N&#227;o existem estudos que permitam tirar conclus&#245;es relativamente &#224; aplica&#231;&#227;o dos diferentes f&#225;rmacos utilizados para a terap&#234;utica da dor na situa&#231;&#227;o espec&#237;fica da dor cr&#243;nica associada com a endometriose. Os algoritmos propostos s&#227;o baseados em investiga&#231;&#245;es feitas para a terap&#234;utica da dor em geral e em opini&#245;es de peritos. (ver <a href="#q13">Grupo de recom. 11</a>)</p>     <p>&nbsp;</p>     ]]></body>
<body><![CDATA[<p align="center"><a name="q13"></a><img src="/img/revistas/aogp/v10n3/10n3a11q13.jpg"/></p>     
<p>&nbsp;</p>     <p><b>Conclus&#245;es</b></p>     <p>Este artigo fornece recomenda&#231;&#245;es sobre as diversas terap&#234;uticas m&#233;dicas na endometriose nomeadamente estroprogestativos, progestativos e agonistas da GnRH. Os estroprogestativo e progestativos devem ser considerados de primeira linha para o controlo da dor associada com a endometriose. Esta revis&#227;o enquadra ainda o tratamento m&#233;dico em situa&#231;&#245;es especiais como infertilidade, endometriose na adolesc&#234;ncia, terap&#234;utica hormonal da p&#243;s-menopausa e integra&#231;&#227;o pr&#233; e p&#243;s-operat&#243;ria. Salienta-se a necessidade de estudos que fortale&#231;am a evid&#234;ncia na abordagem das diversas terap&#234;uticas e seus contextos cl&#237;nicos.</p>     <p>&nbsp;</p>     <p><b>REFER&#202;NCIAS BIBLIOGR&#193;FICAS</b></p>     <!-- ref --><p>1. Bulletins-Gynecology AC on P. ACOG practice bulletin. Medical management of endometriosis. Number 11, December 1999 (replaces Technical Bulletin Number 184, September 1993). Clinical management guidelines for obstetrician-gynecologists. Int. J. Gynaecol. Obstet. 2000;71:183-196.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=1859456&pid=S1646-5830201600030001100001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --> </p>     <p>2. Bruner-Tran KL, Herington JL, Duleba AJ, Taylor HS, Osteen KG. Medical management of endometriosis: Emerging evidence linking inflammation to disease pathophysiology. Minerva Ginecol. 2013. p. 199-213. </p>     <!-- ref --><p>3. Vercellini P, Crosignani P, Somigliana E, Vigan P, Frattaruolo MP, Fedele L. &#8217;Waiting for Godot: A commonsense approach to the medical treatment of endometriosis. Hum. 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