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  <front>
    <journal-meta>
      <journal-id journal-id-type="publisher-id">abc</journal-id>
      <journal-title-group>
        <journal-title>Arquivos Brasileiros de Cardiologia</journal-title>
        <abbrev-journal-title abbrev-type="publisher">Arq. Bras. Cardiol.</abbrev-journal-title>
      </journal-title-group>
      <issn pub-type="ppub">0066-782X</issn>
      <issn pub-type="epub">1678-4170</issn>
      <publisher>
        <publisher-name>Sociedade Brasileira de Cardiologia - SBC</publisher-name>
        <publisher-loc>S&#227;o Paulo, SP, Brazil</publisher-loc>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="publisher-id" specific-use="scielo-v3">t3cH9cHqJvKCxx7Jb7zMbLq</article-id>
      <article-id pub-id-type="other">00007</article-id>
      <article-id pub-id-type="publisher-id" specific-use="scielo-v2">S0066-782X1998001200007</article-id>
      <article-id pub-id-type="publisher-id" specific-use="scielo-v1">S0066-782X(98)07100607</article-id>
      <article-id pub-id-type="doi">10.1590/S0066-782X1998001200007</article-id>
      <article-categories>
        <subj-group subj-group-type="heading">
          <subject>Artigos Originais</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>O significado da abstin&#234;ncia do &#225;lcool na cardiomiopatia alco&#243;lica com disfun&#231;&#227;o ventricular moderada</article-title>
        <trans-title-group xml:lang="en">
          <trans-title>The significance of alcohol abstinence in alcoholic cardiomyopathy with moderate left ventricular dysfunction</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name>
            <surname>Albanesi F&#186;</surname>
            <given-names>Francisco Manes</given-names>
          </name>
          <xref ref-type="aff" rid="aff01"/>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Castier</surname>
            <given-names>M&#225;rcia Bueno</given-names>
          </name>
          <xref ref-type="aff" rid="aff01"/>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Boghossian</surname>
            <given-names>Silvia Helena Cardoso</given-names>
          </name>
          <xref ref-type="aff" rid="aff01"/>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Silva</surname>
            <given-names>Tatiana Tavares da</given-names>
          </name>
          <xref ref-type="aff" rid="aff01"/>
        </contrib>
      </contrib-group>
      <aff id="aff01">
        <addr-line>
          <named-content content-type="city">Rio de Janeiro</named-content>
          <named-content content-type="state">Rio de Janeiro</named-content>
        </addr-line>
        <institution content-type="orgname">Universidade do Estado do Rio de Janeiro</institution>
        <institution content-type="orgdiv1">Faculdade de Ci&#234;ncias M&#233;dicas </institution>
        <country country="BR">Brazil</country>
      </aff>
      <pub-date date-type="collection" publication-format="electronic">
        <month>12</month>
        <year>1998</year>
      </pub-date>
      <volume>71</volume>
      <issue>6</issue>
      <fpage>781</fpage>
      <lpage>785</lpage>
      <history>
        <date date-type="received">
          <day>22</day>
          <month>07</month>
          <year>1998</year>
        </date>
        <date date-type="accepted">
          <day>14</day>
          <month>10</month>
          <year>1998</year>
        </date>
      </history>
      <permissions>
        <license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by-nc/4.0/" xml:lang="en">
          <license-p>This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.</license-p>
        </license>
      </permissions>
      <abstract>
        <p>OBJETIVO: Avaliar o papel da absten&#231;&#227;o alco&#243;lica, no per&#237;odo de 12 meses, na cardiomiopatia alco&#243;lica (CMA) com disfun&#231;&#227;o ventricular de grau moderado, em pacientes tratados com esquema anticongestivo. M&#201;TODOS: Estudo observacional prospectivo com 20 pacientes com CMA, 9 (45%) na classe funcional (CF) II e 11(55%) na CF III, 16 (80%) homens, predom&#237;nio de negros (55%), de 35 a 56 (x=45) anos, com consumo pesado de &#225;lcool (&gt;80g etanol/dia), por per&#237;odo de 51 a 112 (x=85) meses, que concordaram, inicialmente, em participar de programa de apoio, com psicoterapia de grupo, al&#233;m do acompanhamento cl&#237;nico com realiza&#231;&#227;o de exames n&#227;o invasivos, antes do in&#237;cio do programa e ap&#243;s 12 meses da terapia, e foram divididos em dois grupos, o 1 (G-I) constitu&#237;do pelos que atingiram a abstin&#234;ncia e o 2 (G-II) pelos n&#227;o abst&#234;mios. RESULTADOS: Ap&#243;s 12 meses, 11 (55%) pacientes permaneciam em terapia de apoio, 8 (72,72%) no G-I, enquanto os 9 (45%) que n&#227;o se mantiveram no programa, apenas 2 (22,22%) tinham logrado abstin&#234;ncia (G-I). Ao fim da avalia&#231;&#227;o, alcan&#231;amos n&#250;mero igual de pacientes entre os grupos. Comparando os grupos observamos: a) menores valores m&#233;dios dos di&#226;metros sist&#243;lico (DSVE) e diast&#243;lico (DDVE) do ventr&#237;culo esquerdo no G-I; b) maior n&#250;mero de interna&#231;&#245;es no G-II (3) em rela&#231;&#227;o ao G-I (1); c) na evolu&#231;&#227;o cl&#237;nica, maior n&#250;mero de pacientes do G-I, entre os que apresentaram melhoras (3 G-I e 1 G-II) e que permaneceram inalterados (6 G-I e 3 G-II), al&#233;m do maior n&#250;mero de pioras entre o G-II (1 G-I e 5 G-II). CONCLUS&#195;O: Apesar do desejo inicial favor&#225;vel, a abstin&#234;ncia s&#243; foi obtida em 50% dos pacientes com CMA e disfun&#231;&#227;o ventricular moderada, por&#233;m, quando alcan&#231;ada, apresentou melhor evolu&#231;&#227;o (melhoras + inalterados = 90%), com maior redu&#231;&#227;o do DSVE e do DDVE (p&lt;0,001), devendo sempre ser perseguida mesmo na presen&#231;a de moderada disfun&#231;&#227;o ventricular.</p>
      </abstract>
      <trans-abstract xml:lang="en">
        <p>PURPOSE: To evaluate the role of a 12 month alcohol abstinence period in patients with moderate left ventricular dysfunction treated with anticongestive therapy. METHODS: Prospective observational study with 20 patients with alcoholic cardiomyopathy (ACM), 9 (45%) in functional class (FC) II and 11 (55%) in FC III, 16 (80%) men, mostly black (55%), from 35 to 56 (x=45) years old, heavy alcohol users (&gt;80g ethanol for 51 to 112 (x=88) months. At the beginning, all agreed to participate with psychotherapy and clinical evaluation. After 12 months, they were divided in G-I, formed by those who remained abstemious and G-II of non-abstemious. RESULTS: After 12 months, among the 11(55%) who remained in psychotherapy, 8 were in G-I, among those who did not 9 (45%), only 2 (22,22%) remained abstemious (G-I). At the end of the evaluation period, both groups had the same number of patients. Comparing them, we observed: a) lower mean systolic and diastolic left ventricular diameters in G-I; b) more hospitalizations in G-II (3); c) more patients with stable or better clinical evolution in G-I. CONCLUSION: Despite the initial will, only 50% reached abstinence. When it was reached, patients had a better evolution in left ventricular systolic diameter and abstinence should always be tried even in the presence of moderate left ventricular dysfunction.</p>
      </trans-abstract>
      <kwd-group xml:lang="en" kwd-group-type="author-generated">
        <kwd>alcoholic cardiomyopathy</kwd>
        <kwd>abstinence</kwd>
        <kwd>evolution</kwd>
      </kwd-group>
      <kwd-group xml:lang="pt" kwd-group-type="author-generated">
        <kwd>cardiomiopatia alco&#243;lica</kwd>
        <kwd>abstin&#234;ncia</kwd>
        <kwd>evolu&#231;&#227;o</kwd>
      </kwd-group>
      <pub-date publication-format="electronic" date-type="pub">
        <day>08</day>
        <month>01</month>
        <year>2002</year>
      </pub-date>
    </article-meta>
  </front>
  <body>
    <p>Artigo Original</p>
    <p>
      <bold>O Significado da Abstin&#234;ncia do &#193;lcool na Cardiomiopatia Alco&#243;lica com Disfun&#231;&#227;o Ventricular Moderada</bold>
    </p>
    <p>Francisco Manes Albanesi F&#186;, M&#225;rcia Bueno Castier, Silvia Helena Cardoso Boghossian, Tatiana Tavares da Silva </p>
    <p>
      <bold>Rio de Janeiro, RJ</bold>
    </p>
    <p><bold><italic>OBJETIVO:</italic></bold> Avaliar o papel da absten&#231;&#227;o alco&#243;lica, no per&#237;odo de 12 meses, na cardiomiopatia alco&#243;lica (CMA) com disfun&#231;&#227;o ventricular de grau moderado, em pacientes tratados com esquema anticongestivo. </p>
    <p><bold><italic>M&#201;TODOS:</italic></bold> Estudo observacional prospectivo com 20 pacientes com CMA, 9 (45%) na classe funcional (CF) II e 11(55%) na CF III, 16 (80%) homens, predom&#237;nio de negros (55%), de 35 a 56 (x=45) anos, com consumo pesado de &#225;lcool (&gt;80g etanol/dia), por per&#237;odo de 51 a 112 (x=85) meses, que concordaram, inicialmente, em participar de programa de apoio, com psicoterapia de grupo, al&#233;m do acompanhamento cl&#237;nico com realiza&#231;&#227;o de exames n&#227;o invasivos, antes do in&#237;cio do programa e ap&#243;s 12 meses da terapia, e foram divididos em dois grupos, o 1 (G-I) constitu&#237;do pelos que atingiram a abstin&#234;ncia e o 2 (G-II) pelos n&#227;o abst&#234;mios. </p>
    <p><bold><italic>RESULTADOS:</italic></bold> Ap&#243;s 12 meses, 11 (55%) pacientes permaneciam em terapia de apoio, 8 (72,72%) no G-I, enquanto os 9 (45%) que n&#227;o se mantiveram no programa, apenas 2 (22,22%) tinham logrado abstin&#234;ncia (G-I). Ao fim da avalia&#231;&#227;o, alcan&#231;amos n&#250;mero igual de pacientes entre os grupos. Comparando os grupos observamos: a) menores valores m&#233;dios dos di&#226;metros sist&#243;lico (DSVE) e diast&#243;lico (DDVE) do ventr&#237;culo esquerdo no G-I; b) maior n&#250;mero de interna&#231;&#245;es no G-II (3) em rela&#231;&#227;o ao G-I (1); c) na evolu&#231;&#227;o cl&#237;nica, maior n&#250;mero de pacientes do G-I, entre os que apresentaram melhoras (3 G-I e 1 G-II) e que permaneceram inalterados (6 G-I e 3 G-II), al&#233;m do maior n&#250;mero de pioras entre o G-II (1 G-I e 5 G-II). </p>
    <p><bold><italic>CONCLUS&#195;O:</italic></bold> Apesar do desejo inicial favor&#225;vel, a abstin&#234;ncia s&#243; foi obtida em 50% dos pacientes com CMA e disfun&#231;&#227;o ventricular moderada, por&#233;m, quando alcan&#231;ada, apresentou melhor evolu&#231;&#227;o (melhoras + inalterados = 90%), com maior redu&#231;&#227;o do DSVE e do DDVE (p&lt;0,001), devendo sempre ser perseguida mesmo na presen&#231;a de moderada disfun&#231;&#227;o ventricular.  </p>
    <p><bold>Palavras-chave:</bold> cardiomiopatia alco&#243;lica, abstin&#234;ncia, evolu&#231;&#227;o</p>
    <p>
      <bold>The Significance of Alcohol Abstinence in Alcoholic Cardiomyopathy with Moderate Left Ventricular Dysfunction </bold>
    </p>
    <p><bold><italic>PURPOSE:</italic></bold> To evaluate the role of a 12 month alcohol abstinence period in patients with moderate left ventricular dysfunction treated with anticongestive therapy. </p>
    <p><bold><italic>METHODS: </italic></bold>Prospective observational study with 20 patients with alcoholic cardiomyopathy (ACM), 9 (45%) in functional class (FC) II and 11 (55%) in FC III, 16 (80%) men, mostly black (55%), from 35 to 56 (x=45) years old, heavy alcohol users (&gt;80g ethanol for 51 to 112 (x=88) months. At the beginning, all agreed to participate with psychotherapy and clinical evaluation. After 12 months, they were divided in G-I, formed by those who remained abstemious and G-II of non-abstemious. </p>
    <p><bold><italic>RESULTS:</italic></bold> After 12 months, among the 11(55%) who remained in psychotherapy, 8 were in G-I, among those who did not 9 (45%), only 2 (22,22%) remained abstemious (G-I). At the end of the evaluation period, both groups had the same number of patients. Comparing them, we observed: a) lower mean systolic and diastolic left ventricular diameters in G-I; b) more hospitalizations in G-II (3); c) more patients with stable or better clinical evolution in G-I. </p>
    <p><bold><italic>CONCLUSION:</italic></bold> Despite the initial will, only 50% reached abstinence. When it was reached, patients had a better evolution in left ventricular systolic diameter and abstinence should always be tried even in the presence of moderate left ventricular dysfunction.  </p>
    <p><bold>Key-words:</bold> alcoholic cardiomyopathy, abstinence, evolution </p>
    <p>Foi Walshe <sup>1</sup>, em 1873, o primeiro a chamar aten&#231;&#227;o para o papel adverso exercido pelo &#225;lcool no cora&#231;&#227;o. Entretanto, somente ap&#243;s o relato de Graham Steel <sup>2</sup>, em 1893, demonstrando em 25 casos de insufici&#234;ncia card&#237;aca (IC) a associa&#231;&#227;o com o alcoolismo cr&#244;nico, &#233; que esta rela&#231;&#227;o passou a ser aceita, por&#233;m com reservas pelos m&#233;dicos. A partir da segunda metade deste s&#233;culo, ganhou maior difus&#227;o na cl&#237;nica <sup>3-6</sup>. Entre os 673 pacientes consecutivos com IC congestiva estudados no per&#237;odo de 1982 a 1991, no <italic>Johns Hopkins Hospital</italic>, a causa mais freq&#252;ente foi a cardiomiopatia dilatada com 46,5%, estando o &#225;lcool presente em 23 (3,4%) pacientes, em indiv&#237;duos que consumiam mais do que 224g/dia de etanol, por mais de seis meses ou em tratamento do alcoolismo <sup>7</sup>. </p>
    <p>O elemento de maior significado no tratamento da cardiomiopatia alco&#243;lica (CMA) &#233; a abstin&#234;ncia, que deve ser perseguida em qualquer fase da agress&#227;o <sup>3-6,8-11</sup>. Alguns autores pregam a proibi&#231;&#227;o total do consumo de &#225;lcool, n&#227;o se admitindo sequer o seu uso social, pois deprime ainda mais o mioc&#225;rdio, precipitando arritmias<sup> 8-12</sup>.Recentemente, publica&#231;&#227;o do Servi&#231;o de Sa&#250;de P&#250;blica dos Estados Unidos da Am&#233;rica aconselha desencorajar o seu consumo, sendo que naqueles onde for imposs&#237;vel alcan&#231;ar a abstin&#234;ncia ou naqueles com pequeno grau de disfun&#231;&#227;o mioc&#225;rdica, permitir o uso de dose &#250;nica di&#225;ria (&lt;28g de etanol/dia)<sup> 13</sup>.Assim, resolvemos avaliar o significado da abstin&#234;ncia na evolu&#231;&#227;o da CMA, em portadores de disfun&#231;&#227;o mioc&#225;rdica de grau moderado, que aceitaram participar espontaneamente de protocolo, onde a meta a ser alcan&#231;ada era a retirada total do &#225;lcool, com terapia de apoio psicoter&#225;pico, em centro terci&#225;rio na cidade do Rio de Janeiro.</p>
    <p>M&#233;todos </p>
    <p>Foram avaliados, por estudo observacional prospectivo, 20 pacientes com CMA, que apresentavam disfun&#231;&#227;o ventricular de grau moderado, encontrando-se em tratamento ambulatorial, e que concordaram (consentimento escrito), ap&#243;s conhecer a proposta do estudo, em iniciar terapia de apoio psicol&#243;gico regular, por per&#237;odo de 12 meses, visando se livrarem do v&#237;cio do consumo excessivo do &#225;lcool, com o objetivo de verificar o papel da abstin&#234;ncia alco&#243;lica na melhora, manuten&#231;&#227;o ou agravamento da disfun&#231;&#227;o mioc&#225;rdica. </p>
    <p>Foram exclu&#237;dos do estudo os portadores de hipertens&#227;o arterial (complica&#231;&#227;o freq&#252;ente entre os que consomem excesso de &#225;lcool), os que apresentavam quadro anterior de angina do peito e passado de infarto do mioc&#225;rdio, afastando algumas causas que, associadas ao consumo de &#225;lcool, poderiam ocasionar agress&#227;o mioc&#225;rdica. </p>
    <p>Eram 16 (80%) homens, com idades entre 35 a 56 (x=45) anos, com predom&#237;nio de negros (55%), com consumo considerado pesado de &#225;lcool e &gt;80g de etanol/dia, segundo os crit&#233;rios de Burch e Gilles <sup>8</sup>, por per&#237;odo de 51 a 112 (x=85) meses, avaliados segundo a classe funcional (CF) da <italic>New York Heart Association</italic>, 9 (45%) na CF II e 11 (55%) na CF III, mantidos em seguimento ambulatorial, em uso de terapia anticongestiva com digital, diur&#233;tico (furosemida ou tiaz&#237;dico) e inibidor da enzima conversora, otimizados em suas dosagens. </p>
    <p>A disfun&#231;&#227;o ventricular esquerda foi avaliada por meios cl&#237;nicos, eletrocardiogr&#225;ficos e medidas ecocardiogr&#225;ficas, sendo empregados os di&#226;metros diast&#243;lico do ventr&#237;culo esquerdo (DDVE) e sist&#243;lico do ventr&#237;culo esquerdo (DSVE); a dimens&#227;o do &#225;trio esquerdo (AE) e do percentual de encurtamento circunferencial do ventr&#237;culo esquerdo (VE) - % ES, comparando-se suas medidas antes e ap&#243;s a introdu&#231;&#227;o do programa de apoio psicol&#243;gico. </p>
    <p>Os pacientes foram divididos em quatro subgrupos de cinco, constituindo os subgrupos de terapia de apoio, que era semanal, realizada em hor&#225;rio de comum acordo entre os seus participantes e terapeutas. Ao lado desse apoio, continuaram o acompanhamento ambulatorial a cada dois meses, ou quando necess&#225;rio, sendo avaliados por exames cl&#237;nico e complementar n&#227;o invasivo (eletrocardiograma e ecocardiograma), comparando-se os achados antes do inicio da terapia de apoio e ap&#243;s 12 meses. Os que lograram atingir abstin&#234;ncia constitu&#237;ram o grupo 1 (G-I) e os que permaneceram com h&#225;bitos alco&#243;licos o grupo 2 (G-II). </p>
    <p>Ao t&#233;rmino do estudo foram submetidos a teste de avalia&#231;&#227;o, visando conhecer: se consumiram ou n&#227;o &#225;lcool (quantidades e motivos que o levaram a us&#225;-lo), seus sintomas, sua experi&#234;ncia com a supress&#227;o da droga e suas rea&#231;&#245;es quando mantidos no programa, e naqueles que abandonaram a terapia, as causas que motivaram essa decis&#227;o. </p>
    <p>Resultados </p>
    <p>Ap&#243;s transcorridos os 12 meses, permaneciam no programa de terapia de apoio 11 (55%) pacientes, tendo oito logrado a abstin&#234;ncia e tr&#234;s que continuavam a consumir bebidas alco&#243;licas com freq&#252;&#234;ncia, mesmo com a perman&#234;ncia no programa de psicoterapia. Entre os 9 (45%) pacientes que abandonaram o programa de apoio, dois (22,22%) tinham atingido a abstin&#234;ncia, por&#233;m o agente de transforma&#231;&#227;o n&#227;o havia sido a psicoterapia, mas sim o ingresso em nova seita religiosa que, entre outras metas, combatia tamb&#233;m o alcoolismo (<xref ref-type="fig" rid="fig01">fig. 1</xref>). O abandono ocorreu entre o 3&#186; e 10&#186; (x=6,2) m&#234;s, tendo sido a causa mais freq&#252;ente, a vergonha pela mentira imposta aos companheiros do grupo psicoter&#225;pico, uma vez que estavam consumindo &#225;lcool e diziam que estavam se abstendo, reconhecendo que a abstin&#234;ncia era ato volunt&#225;rio, que n&#227;o conseguiam atingir, por n&#227;o ultrapassarem os motivos que geraram o seu v&#237;cio. </p>
    <fig id="fig01">
      <graphic xlink:href="1678-4170-abc-71-06-0781-00007-gf01.jpg"/></fig>
    <p>Ao t&#233;rmino dos 12 meses alcan&#231;amos igual n&#250;mero de pacientes entre os grupos (<xref ref-type="fig" rid="fig02">fig. 2</xref>), por&#233;m, entre os que lograram absten&#231;&#227;o (G-I), 3 (30%) tinham apresentado melhoras na fun&#231;&#227;o ventricular, 6 (60%) permaneciam inalterados e apenas 1 (10%) tinha piorado. No entanto, entre os que n&#227;o alcan&#231;aram a abstin&#234;ncia (G-II), apenas 1 (10%) apresentou melhoras da fun&#231;&#227;o, 4 (40%) permaneceram inalterados e 5 (50%) pioraram a fun&#231;&#227;o ventricular. O &#250;nico caso do G-II, apresentando melhoras, era o paciente que permaneceu no grupo de apoio e que passou a consumir menor volume de etanol por semana. </p>
    <fig id="fig02">
      <graphic xlink:href="1678-4170-abc-71-06-0781-00007-gf02.jpg"/></fig>
    <p>No julgamento final do protocolo, ap&#243;s o t&#233;rmino do estudo utilizando os dados cl&#237;nicos e os exames complementares, encontramos os seguintes achados. O eletrocardiograma evidenciou o aparecimento de um caso de fibrila&#231;&#227;o atrial no G-II, em paciente que apresentou piora do estado contr&#225;ctil. Observamos redu&#231;&#227;o no n&#250;mero de extra-s&#237;stoles no G-I, por&#233;m sem diferen&#231;a estat&#237;stica com o G-II. O ecocardiograma (<xref ref-type="table" rid="tab01">tab. I</xref>) revelou que o G-I apresentou redu&#231;&#227;o significativa (p&lt;0,001) dos DSVE e DDVE, em rela&#231;&#227;o aos valores obtidos antes do in&#237;cio do apoio psicol&#243;gico, mostrando o papel desempenhado pela absten&#231;&#227;o do &#225;lcool. Tivemos no per&#237;odo 4 (20%) hospitaliza&#231;&#245;es, sendo uma no G-I e 3 no G-II, todas em pacientes com piora do quadro cl&#237;nico. Na avalia&#231;&#227;o do conjunto, observamos maior n&#250;mero de pacientes com piora cl&#237;nica e que necessitaram de interna&#231;&#227;o no G-II, demonstrando que a perman&#234;ncia da liba&#231;&#227;o alco&#243;lica &#233; danosa ao mioc&#225;rdio. </p>
    <table-wrap id="tab01">
      <graphic xlink:href="1678-4170-abc-71-06-0781-00007-gt01.jpg"/></table-wrap>
    <p>Assim, apesar do desejo inicial dos participantes do estudo, a abstin&#234;ncia s&#243; foi obtida em 50% dos pacientes com CMA e disfun&#231;&#227;o ventricular moderada, por&#233;m no grupo onde foi alcan&#231;ada, obtivemos melhor evolu&#231;&#227;o (inalterados + melhoras = 90%), com redu&#231;&#227;o do DDVE e do DSVE, devendo ser perseguida mesmo nos pacientes com disfun&#231;&#227;o ventricular moderada. </p>
    <p>Discuss&#227;o </p>
    <p>A CMA &#233; mais freq&#252;ente entre os homens, de 30 a 55 anos, e que consomem mais do que 80g etanol/dia <sup>8</sup>. Nossa popula&#231;&#227;o, de acordo com a literatura, era formada, predominantemente, por negros (55%), refletindo nossas caracter&#237;sticas de distribui&#231;&#227;o racial, que apresenta 68 635 438 (45,04%) habitantes pardos ou negros <sup>14 </sup>, por&#233;m menor do que a referida por Demakis e col<sup> 9</sup>, de 82,45%, em Chicago. </p>
    <p>Discute-se, qual o tempo e a dose m&#237;nima de &#225;lcool, que provoca agress&#227;o ao mioc&#225;rdio, e se haveria algum grau de predisposi&#231;&#227;o gen&#233;tica na sua caracteriza&#231;&#227;o. O utilizado, mais amplamente, &#233; o do consumo maior do que 80g de etanol/dia durante os &#250;ltimos 10 anos<sup> 8</sup>, entretanto, doses menores como 60g etanol/dia em per&#237;odos mais prolongados (m&#233;dia 25 anos), tamb&#233;m podem ser respons&#225;veis pela agress&#227;o<sup> 15</sup>. Como a dose do &#225;lcool depende do tempo em que foi consumido de maneira abusiva, foi poss&#237;vel calcular a dose m&#233;dia respons&#225;vel em acarretar cardiomiopatia dilatada, como sendo de 250kg de etanol durante todo o tempo de liba&#231;&#227;o do indiv&#237;duo <sup>16</sup> . O tempo de abuso do &#225;lcool em nossa casu&#237;stica foi de 51 a 112 meses, inferior ao m&#233;dio (10 anos ou 120 meses) referido na literatura, talvez devido &#224;s intercorr&#234;ncias que o &#225;lcool possa ocasionar no estado nutricional ou na atividade imunol&#243;gica, provocando maior grau de agress&#227;o mioc&#225;rdica, em indiv&#237;duos que habitam regi&#227;o de clima temperado, sem maiores modifica&#231;&#245;es sazonais. </p>
    <p>A predisposi&#231;&#227;o gen&#233;tica &#233; encontrada na doen&#231;a hep&#225;tica dos alco&#243;latras <sup>17</sup> e relacionada com a presen&#231;a do ant&#237;geno B<sub>6</sub> nos pacientes com cardiomiopatia dilatada que consomem &#225;lcool de modo exagerado, sugerindo a exist&#234;ncia da predisposi&#231;&#227;o gen&#233;tica na agress&#227;o ao cora&#231;&#227;o <sup>18</sup>. Em nenhum dos nossos casos t&#237;nhamos hist&#243;ria familiar de CMA, entretanto, a sua exclus&#227;o n&#227;o afasta a possibilidade da exist&#234;ncia de predisposi&#231;&#227;o gen&#233;tica ao &#225;lcool, o que n&#227;o foi alvo do nosso estudo. </p>
    <p>A casu&#237;stica que alcan&#231;amos foi pequena, por&#233;m, somente atingida ap&#243;s busca exaustiva. Aparentemente, seria muito f&#225;cil conseguirmos pacientes com o perfil requerido para o trabalho, por&#233;m ao apresentarmos seu desenho, encontr&#225;vamos grande relut&#226;ncia na sua aceita&#231;&#227;o, motivado pela exposi&#231;&#227;o que os pacientes teriam de seus problemas pessoais, que contribu&#237;ram para o consumo abusivo do &#225;lcool, al&#233;m da inseguran&#231;a na participa&#231;&#227;o de terapia de apoio em grupo. Apesar do desejo inicial em participar do programa, somente 11 (55%) pacientes, completaram os 12 meses propostos, sendo que somente 8 (72,72%) atingiram a abstin&#234;ncia, tendo tr&#234;s completado o programa, no entanto, sem alcan&#231;ar o seu objetivo. Entre os 9 (45%) que abandonaram a psicoterapia, 2 (10%) atingiram o objetivo, por terem aderido a seita religiosa onde a absten&#231;&#227;o era, tamb&#233;m, meta a ser alcan&#231;ada. Durante o apoio, foram trabalhados a valoriza&#231;&#227;o individual e a auto-estima, al&#233;m da estima familiar e do papel da sociedade e do cidad&#227;o. </p>
    <p>Na hist&#243;ria natural tra&#231;ada por Demakis e col <sup>9</sup>, em 57 pacientes com CMA, acompanhados por per&#237;odo m&#233;dio de 40,5 meses, observaram a exist&#234;ncia de tr&#234;s tipos de evolu&#231;&#227;o: uma que melhorou o quadro cl&#237;nico (15 pacientes), onde a maioria 73,3% (11/15) alcan&#231;ou a absten&#231;&#227;o do &#225;lcool; outra, que permaneceu inalterada (12 pacientes) onde somente 25% (3/12) atingiram a abstin&#234;ncia e o 3&#170; (30 pacientes) que piorou e apenas 13,3% (4/30) casos tinham abandonado o h&#225;bito de consumir &#225;lcool. Assim constataram que 69,42% (39/57) continuaram a consumir &#225;lcool e apenas 10,25% (4/39) apresentaram melhoras cl&#237;nicas, em contraste com 31,58% (18/57) onde a abstin&#234;ncia foi alcan&#231;ada e que 61,1% (11/18) apresentaram melhoras na fun&#231;&#227;o ventricular. J&#225; entre os 64 pacientes, acompanhados por quatro anos e relatados por Arroyo e Regan <sup>19</sup>, apenas 34,3% (22/64) alcan&#231;aram abstin&#234;ncia e 46% apresentaram melhoras da cardiopatia, 36% permaneceram inalterados, 9% pioraram e 9% faleceram. Entre os 42 (65,7%) que n&#227;o lograram absten&#231;&#227;o, 5% melhoraram, 28% permaneceram inalterados, 10% pioraram e 57% evolu&#237;ram para o &#243;bito, nos quatro anos de observa&#231;&#227;o. </p>
    <p>Nossos achados foram melhores do que os referidos por Demakis e col <sup>9</sup> e Arroyo e Regan <sup>19</sup>, pois alcan&#231;amos abstin&#234;ncia em 50% da popula&#231;&#227;o estudada, enquanto aqueles autores atingiram 31,58% e 34,3%, respectivamente, o que foi devido ao fato dos nossos pacientes terem manifestado, previamente, seu desejo de participar do grupo de apoio. </p>
    <p>A abstin&#234;ncia alco&#243;lica pode melhorar e contribuir para o desaparecimento dos sintomas card&#237;acos, com revers&#227;o da depress&#227;o mioc&#225;rdica e do tamanho do cora&#231;&#227;o <sup>20-23</sup>,entretanto, pode ser observado defeito de perfus&#227;o mioc&#225;rdica ao esfor&#231;o avaliado por meio da tomografia com t&#225;lio-201<sup> 23</sup>. </p>
    <p>Considerando melhoras (n=3) e inalterados (n=6), no grupo de abstin&#234;ncia em rela&#231;&#227;o a melhoras (n=1) e inalterados (n=4), no grupo que persistiu consumindo &#225;lcool, os pacientes que lograram atingir o objetivo do estudo, quando avaliados por meios cl&#237;nicos e por exames complementares em 12 meses, tiveram melhor evolu&#231;&#227;o. Isto nos faz persistir na indica&#231;&#227;o da abstin&#234;ncia do &#225;lcool, mesmo nos portadores de disfun&#231;&#227;o moderada, pois ela &#233; fundamental para modificar a hist&#243;ria natural dessa agress&#227;o. Tivemos um caso de paciente que, mesmo, continuando na terapia de apoio, n&#227;o atingiu a absten&#231;&#227;o, por&#233;m relatou redu&#231;&#227;o no volume di&#225;rio de &#225;lcool, tendo apresentado melhoras cl&#237;nicas e dos exames complementares, concordando com a proposta de Konstan e col <sup>13</sup> que permite o consumo de dose &#250;nica de etanol/dia (&lt;28g) naqueles onde o v&#237;cio n&#227;o p&#244;de ser totalmente vencido. </p>
    <p>Entre os seis pacientes que tiveram piora do quadro cl&#237;nico, cinco foram hospitalizados durante o per&#237;odo do estudo, sendo a maioria (4/5) entre os que persistiram abusando do &#225;lcool. O &#250;nico paciente internado entre os que atingiram a abstin&#234;ncia, era portador de disfun&#231;&#227;o, que n&#227;o foi modificada pelo afastamento do &#225;lcool, provavelmente devido ao grau de fibrose apresentado. </p>
    <p>Foi conclu&#237;do que o papel da abstin&#234;ncia tamb&#233;m era notado quando a CMA era associada a outras cardiopatias. Venkatran e col <sup>24</sup> observaram a melhora na associa&#231;&#227;o com doen&#231;a arterial coron&#225;ria trivascular, comprovada pelo aumento da fra&#231;&#227;o de eje&#231;&#227;o de 11 para 61% obtida por radionucl&#237;deo ap&#243;s oito meses de absten&#231;&#227;o. St&#246;llberg e Finsterer <sup>25</sup> observaram a revers&#227;o da cardiomiopatia dilatada para hipertr&#243;fica, em jovem de 35 anos, consumindo &#225;lcool durante 13 anos, e cuja abstin&#234;ncia de um ano modificou, de maneira marcante o tipo da cardiomiopatia. Em nossa popula&#231;&#227;o n&#227;o t&#237;nhamos nenhum paciente com associa&#231;&#227;o de cardiopatias. </p>
    <p>Os alco&#243;latras podem apresentar redu&#231;&#227;o da ingesta de vitamina B1 (tiamina) que pode ocasionar a chamada tintura berib&#233;rica, que &#233; a car&#234;ncia sem os sintomas e sinais caracter&#237;sticos do berib&#233;ri e que, rapidamente, desaparecem com a reposi&#231;&#227;o desta vitamina. Cerca de 15% dos alco&#243;latras assintom&#225;ticos apresentam moderada defici&#234;ncia desta vitamina<sup> 26</sup> e que 10% dos pacientes com IC s&#243; melhoram o quadro congestivo ap&#243;s a adi&#231;&#227;o da tiamina ao esquema terap&#234;utico<sup> 27</sup>. Para evitar esta contamina&#231;&#227;o, nossos pacientes, durante o per&#237;odo do programa de apoio, n&#227;o fizeram uso de complementa&#231;&#227;o vitam&#237;nica a fim de n&#227;o modificar os achados da abstin&#234;ncia. </p>
    <p>Cremos, que apesar dos custos serem elevados para a realiza&#231;&#227;o de programas de apoio a alco&#243;latras, eles devessem ser estimulados, pois seu efeitos s&#227;o evidentes quanto ao papel de regress&#227;o da disfun&#231;&#227;o mioc&#225;rdica, do n&#250;mero de hospitaliza&#231;&#245;es por descompensa&#231;&#227;o card&#237;aca e por propiciar maior integra&#231;&#227;o familiar, social e comportamental do cidad&#227;o.</p>
    <p>Faculdade de Ci&#234;ncias M&#233;dicas da Universidade do Estado do Rio de Janeiro </p>
    <p> Correspond&#234;ncia: Francisco Manes Albanesi F&#186; - Av. 28 de Setembro, 77 - 2&#186; - 20551- 030 - Rio de Janeiro, RJ </p>
    <p> Recebido para publica&#231;&#227;o em 22/7/98 </p>
    <p> Aceito em 14/10/98</p>
  </body>
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