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Complete Atrioventricular Block As the First Manifestation of Noncompaction of the Ventricular Myocardium

Authors

  • BRUNO RAMOS NASCIMENTO M.D.,

    Corresponding author
    1. Pós-graduação em Clínica Médica/Ciências Aplicadas à Saúde do Adulto—Faculdade de Medicina da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
    • Serviço de Cardiologia e Cirurgia Cardiovascular do Hospital das Clínicas da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
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  • DANIEL FURTADO VIDIGAL M.D.,

    1. Serviço de Cardiologia e Cirurgia Cardiovascular do Hospital das Clínicas da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
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  • RENATA DE CARVALHO BICALHO CARNEIRO M.D.,

    1. Serviço de Cardiologia e Cirurgia Cardiovascular do Hospital das Clínicas da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
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  • WARLEY CRISTIANO DE SOUZA M.D.,

    1. Acadêmicos de Medicina da Faculdade de Medicina da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
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  • WALKIRIA MONTEIRO LOPES M.D.,

    1. Acadêmicos de Medicina da Faculdade de Medicina da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
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  • ANTONIO LUIZ PINHO RIBEIRO PH.D.,

    1. Serviço de Cardiologia e Cirurgia Cardiovascular do Hospital das Clínicas da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
    2. Acadêmicos de Medicina da Faculdade de Medicina da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
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  • E MARIA DO CARMO PEREIRA NUNES PH.D.

    1. Serviço de Cardiologia e Cirurgia Cardiovascular do Hospital das Clínicas da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
    2. Acadêmicos de Medicina da Faculdade de Medicina da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
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  • Disclosure: The authors of this paper declare to have no conflicts of interest. This study had no financial support or applicable grants.

Address for reprints: Bruno Ramos Nascimento, M.D., Rua Tenente Anastácio de Moura, 740/602, 30240-390, Belo Horizonte, MG. Fax: 55-31-34099437; e-mail: ramosnas@gmail.com

Abstract

Noncompaction of ventricular myocardium (NVM) is a rare cardiomyopathy, most probably caused by disturbances in embryonic morphogenesis of the myocytes, resulting in prominent trabeculations in the ventricular myocardium. Several diagnostic criteria have been proposed by echocardiography, and its association with other heart diseases is common. Its mortality is closely related to ventricular dysfunction, cardiac arrhythmias, and cardioembolic events.

We report here a case of occurrence of atrioventricular block with syncope as the clinical manifestation of NVM. A brief review of the literature on morphological features, diagnosis, prognosis, and treatment will also be discussed.

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