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      Analysis of left ventricular function in patients with heart failure undergoing cardiac resynchronization Translated title: Análise da função ventricular esquerda de pacientes com insuficiência cardíaca submetidos à ressincronização cardíaca

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          Abstract

          BACKGROUND: The gold standard surgical treatment for heart failure is cardiac transplantation, however, due to difficulties of this treatment, other surgical proposals have been reported, including the implantation of cardiac resynchronizer. OBJECTIVE: To analyze the left ventricular function by echocardiography in patients with advanced heart failure with interventricular dyssynchrony undergone implantation of cardiac resynchronizer. METHODS: Between June 2006 and June 2012, 24 patients with average age of 61.5 ± 11 years were evaluated, carriers of advanced congestive heart failure functional class III and IV (NYHA), interventricular dyssynchrony and optimal drug therapy, and submitted implantation of cardiac resynchronizer and postoperative echocardiographically evaluated in six months. RESULTS: There was significant improvement of the analyzed echocardiography parameters. The average left ventricular diastolic diameter decreased from 69.6 ± 9.8 mm to 66.8 ± 8.8 mm, systolic diameters from 58.6 ± 8.8 mm to 52.7 ± 8.8 mm, and ejection fraction, average of 31 ± 8% to 40 ± 7% with level of significance, respectively, of 0.019, 0.0004 and 0.0002, statistically significant with a significance level of 0.05. CONCLUSION: There was a significant improvement of left ventricular function analyzed by echocardiography at six months, in patients with advanced heart failure undergone implantation of cardiac resynchronizer.

          Translated abstract

          FUNDAMENTOS: O tratamento cirúrgico da insuficiência cardíaca padrão-ouro é o transplante cardíaco, porém, em decorrência das dificuldades desse tratamento, outras propostas cirúrgicas têm sido relatadas, entre elas o implante de ressincronizador cardíaco. OBJETIVO: Analisar a função ventricular esquerda, por meio da ecocardiografia, de pacientes portadores de insuficiência cardíaca avançada com dissincronia interventricular submetidos a implante de ressincronizador cardíaco. MÉTODOS: Entre junho de 2006 a junho de 2012, foram avaliados 24 pacientes com idade média de 61,5 ± 11 anos, portadores de insuficiência cardíaca congestiva avançada em classe funcional III e IV (NYHA), dissincronia interventricular e tratamento medicamentoso otimizado. Esses pacientes foram submetidos ao implante de ressincronizador cardíaco e avaliados ecocardiograficamente no pós-operatório de seis meses. RESULTADOS: Houve melhora significativa dos parâmetros ecocardiográficos analisados. A média dos diâmetros diastólicos ventriculares esquerdos reduziu de 69,6 ± 9,8 mm para 66,8 ± 8,8 mm, diâmetros sistólicos de 58,6 ± 8,8 mm para 52,7 ± 8,8 mm e a fração de ejeção, média de 31 ± 8% para 40 ± 7% com nível de significância, respectivamente, de 0,019, 0,0004 e 0,0002, estatisticamente significativos com nível de significância de 0,05. CONCLUSÃO: Houve melhora da função ventricular esquerda analisada por meio da ecocardiografia, em seis meses, de pacientes portadores de insuficiência cardíaca avançada submetidos a implante de ressincronizador cardíaco.

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          Most cited references32

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          Comprehensive guidelines for the diagnosis and treatment of chronic heart failure Task force for the diagnosis and treatment of chronic heart failure of the European Society of Cardiology

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            Sociedade Brasileira de Cardiologia III Diretriz brasileira de insuficiência cardíaca crônica

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              História do transplante cardíaco

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                rbccv
                Brazilian Journal of Cardiovascular Surgery
                Braz. J. Cardiovasc. Surg.
                Sociedade Brasileira de Cirurgia Cardiovascular (São José do Rio Preto )
                1678-9741
                March 2013
                : 28
                : 1
                : 69-75
                Affiliations
                [1 ] Universidade Federal de Mato Grosso do Sul Brazil
                Article
                S0102-76382013000100011
                10.5935/1678-9741.20130011
                307dbf0c-c29e-454c-897f-d82f64b71144

                http://creativecommons.org/licenses/by/4.0/

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                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0102-7638&lng=en
                Categories
                CARDIAC & CARDIOVASCULAR SYSTEMS
                SURGERY

                Surgery,Cardiovascular Medicine
                Heart failure,Cardiac resynchronization therapy,Echocardiography,Insuficiência cardíaca,Terapia de Ressincronização Cardíaca,Ecocardiografia

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