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Artigo Acesso aberto Produção Nacional Revisado por pares
BIBTEX RIS

Right Ventricular Doppler Echocardiographic Study of Indeterminate Form of Chagas Disease

2014; Sociedade Brasileira de Cardiologia (SBC); Linguagem: Inglês

10.5935/abc.20140197

ISSN

1678-4170

Autores

Rogério Gomes Furtado, Daniela do Carmo Rassi, João Batista Masson Silva, Minna Moreira Dias Romano, Oswaldo César de Almeida Filho, André Schmidt, Salvador Rassi,

Tópico(s)

Cardiomyopathy and Myosin Studies

Resumo

Background: Patients with indeterminate form of Chagas disease/cardiac normality (ICD/CN) exhibited normal electrocardiograms and chest X-rays; however, more sophisticated tests detected some degree of morphological and functional changes in the heart.Objective: To assess the prevalence of systolic and diastolic dysfunction of the right ventricle (RV) in patients with ICD/CN.Methods: This was a case-control and prevalence study.Using Doppler two-dimensional echocardiography (2D), 92 patients were assessed and divided into two groups: group I (normal, n = 31) and group II (ICD/CN, n = 61).Results: The prevalence of RV systolic dysfunction in patients in groups I and II was as follows: fractional area change (0.0% versus 0.6%), mobility of the tricuspid annulus (0.0% versus 0.0%), and S-wave tissue Doppler (6.4% versus 26.0%, p = 0.016).The prevalence of global disorders such as the right myocardial performance index using tissue Doppler (16.1% versus 27.8%, p = 0.099) and pulsed Doppler (61.3% versus 68%, p = 0.141) and diastolic disorders such as abnormal relaxation (0.0% versus 6.0%), pseudonormal pattern (0.0% versus 0.0%), and restrictive pattern (0.0% versus 0.0%) was not statistically different between groups. Conclusion:The prevalence of RV systolic dysfunction was estimated to be 26% (S wave velocity compared with other variables), suggesting incipient changes in RV systolic function in the ICD/CN group.(

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