Plastia valvar mitral pela técnica do Duplo Teflon: análise do remodelamento cardíaco pela ecocardiografia tridimensional

INTRODUÇÃO: A plastia valvar mitral é o tratamento de escolha para a insuficiência mitral, porém a literatura é escassa em relação ao comportamento do átrio e ventrículo esquerdos após a plastia mitral sem utilização de anéis protéticos. OBJETIVO: Analisar a morfologia e a função cardíaca de indivíd...

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Published in:Revista brasileira de cirurgia cardiovascular Vol. 25; no. 4; pp. 534 - 542
Main Authors: Guedes, Marco Antonio Vieira, Pomerantzeff, Pablo Maria Alberto, Brandão, Carlos Manuel de Almeida, Vieira, Marcelo Luiz Campos, Leite Filho, Osanam Amorim, Silva, Marcos Floripes da, Spinola, Pablo da Cunha, Stolf, Noedir Antonio Groppo
Format: Journal Article
Language:Portuguese
Published: Sociedade Brasileira de Cirurgia Cardiovascular 01-12-2010
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Abstract INTRODUÇÃO: A plastia valvar mitral é o tratamento de escolha para a insuficiência mitral, porém a literatura é escassa em relação ao comportamento do átrio e ventrículo esquerdos após a plastia mitral sem utilização de anéis protéticos. OBJETIVO: Analisar a morfologia e a função cardíaca de indivíduos submetidos à plastia valvar mitral pela técnica de Duplo Teflon, por meio da ecocardiografia tridimensional. MÉTODOS: Foram incluídos 14 pacientes com insuficiência mitral mixomatosa, submetidos à plastia mitral pela técnica de Duplo Teflon. Treze pacientes encontravam-se em classe III/IV. Os pacientes foram avaliados nos períodos pré-operatório, pós-operatório imediato (POI), 6 meses e 1 ano após a plastia mitral. Foi utilizado teste de análise de variância de medidas repetidas para o estudo estatístico, sendo considerado estatisticamente significante P<0,05. RESULTADOS: A análise dos volumes sistólicos, atrial e ventricular demonstrou redução volumétrica significativa entre POI e 1 ano (P=0,028 e P=0,020, respectivamente). Entre o pré-operatório e 1 ano, houve redução média de 19,9% e 15,4% nos volumes atrial e ventricular, respectivamente. Os volumes diastólicos atrial e ventricular apresentaram redução significativa no POI (P<0,001 e P=0,024, respectivamente), permanecendo estáveis ao longo do estudo. Houve aumento na fração de ejeção do átrio esquerdo após 6 meses (P<0,001), porém não houve variação na função ventricular esquerda. CONCLUSÕES: Os pacientes submetidos à plastia valvar mitral por meio da técnica de Duplo Teflon apresentaram remodelamento reverso do átrio esquerdo e do ventrículo esquerdo. Esta redução nos volumes cavitários esteve associada à melhora da função atrial esquerda durante o estudo.
AbstractList INTRODUÇÃO: A plastia valvar mitral é o tratamento de escolha para a insuficiência mitral, porém a literatura é escassa em relação ao comportamento do átrio e ventrículo esquerdos após a plastia mitral sem utilização de anéis protéticos. OBJETIVO: Analisar a morfologia e a função cardíaca de indivíduos submetidos à plastia valvar mitral pela técnica de Duplo Teflon, por meio da ecocardiografia tridimensional. MÉTODOS: Foram incluídos 14 pacientes com insuficiência mitral mixomatosa, submetidos à plastia mitral pela técnica de Duplo Teflon. Treze pacientes encontravam-se em classe III/IV. Os pacientes foram avaliados nos períodos pré-operatório, pós-operatório imediato (POI), 6 meses e 1 ano após a plastia mitral. Foi utilizado teste de análise de variância de medidas repetidas para o estudo estatístico, sendo considerado estatisticamente significante P<0,05. RESULTADOS: A análise dos volumes sistólicos, atrial e ventricular demonstrou redução volumétrica significativa entre POI e 1 ano (P=0,028 e P=0,020, respectivamente). Entre o pré-operatório e 1 ano, houve redução média de 19,9% e 15,4% nos volumes atrial e ventricular, respectivamente. Os volumes diastólicos atrial e ventricular apresentaram redução significativa no POI (P<0,001 e P=0,024, respectivamente), permanecendo estáveis ao longo do estudo. Houve aumento na fração de ejeção do átrio esquerdo após 6 meses (P<0,001), porém não houve variação na função ventricular esquerda. CONCLUSÕES: Os pacientes submetidos à plastia valvar mitral por meio da técnica de Duplo Teflon apresentaram remodelamento reverso do átrio esquerdo e do ventrículo esquerdo. Esta redução nos volumes cavitários esteve associada à melhora da função atrial esquerda durante o estudo.
Author Brandão, Carlos Manuel de Almeida
Silva, Marcos Floripes da
Spinola, Pablo da Cunha
Guedes, Marco Antonio Vieira
Leite Filho, Osanam Amorim
Pomerantzeff, Pablo Maria Alberto
Vieira, Marcelo Luiz Campos
Stolf, Noedir Antonio Groppo
AuthorAffiliation Sociedade Brasileira de Cirurgia Cardiovascular
Universidade de São Paulo
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  givenname: Marco Antonio Vieira
  surname: Guedes
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  givenname: Pablo Maria Alberto
  surname: Pomerantzeff
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  organization: Universidade de São Paulo
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  givenname: Carlos Manuel de Almeida
  surname: Brandão
  fullname: Brandão, Carlos Manuel de Almeida
  organization: Universidade de São Paulo
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  givenname: Marcelo Luiz Campos
  surname: Vieira
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  organization: Universidade de São Paulo
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  givenname: Noedir Antonio Groppo
  surname: Stolf
  fullname: Stolf, Noedir Antonio Groppo
  organization: Universidade de São Paulo
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DocumentTitleAlternate Mitral valve repair by Double Teflon technique: cardiac remodeling analysis by tridimensional echocardiography
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Issue 4
Keywords Prolapso da valva mitral
Mitral valve
Mitral valve prolapse
Insuficiência da valva mitral
Procedimentos cirúrgicos reconstrutivos
Reconstructive surgical procedures
Valva mitral
Mitral valve insufficiency
Echocardiography, three-dimensional
Ecocardiografia tridimensional
Language Portuguese
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Snippet INTRODUÇÃO: A plastia valvar mitral é o tratamento de escolha para a insuficiência mitral, porém a literatura é escassa em relação ao comportamento do átrio e...
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SubjectTerms CARDIAC & CARDIOVASCULAR SYSTEMS
SURGERY
Title Plastia valvar mitral pela técnica do Duplo Teflon: análise do remodelamento cardíaco pela ecocardiografia tridimensional
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