Echocardiographic parameters associated with pulmonary congestion in Chagas cardiomyopathy

Revista da Sociedade Brasileira de Medicina Tropical

Marselha Marques Barral²  Maria Carmo Pereira Nunes²  Marcia Melo Barbosa¹  Cid Sérgio Ferreira¹  Wilson Campos Tavares Júnior¹  Manoel Otávio Da Costa Rocha² 

[1] ,Federal University of Minas Gerais Postgraduate Course of Infectious Diseases and Tropical Medicine Belo Horizonte MG

关键词: Chagas disease;    Echocardiography;    Pulmonary congestion;    Doença de Chagas;    Ecocardiografia;    Congestão pulmonar;   

DOI  :  10.1590/S0037-86822010000300006

来源: SciELO

【 摘 要 】

INTRODUCTION: Discrepancy between the intensity of pulmonary congestion and the grade of cardiomegaly seems to be a common finding of Chagas cardiomyopathy, in spite of significant systolic dysfunction of the left ventricle. Its mechanism has not been established. The aim of this study was to investigate pulmonary congestion and to analyze if it correlated with Doppler echocardiographic parameters in patients with Chagas dilated cardiomyopathy. METHODS: Fifty-five patients with positive serology tests for Trypanosoma cruzi and Chagas dilated cardiomyopathy were studied. Chest x-rays, Doppler echocardiogram and plasmatic brain natriuretic peptide levels were obtained in all patients. The degree of pulmonary venous vessels changes on chest x-ray was graded using a pulmonary congestion score, and then compared to Doppler echocardiographic parameters. RESULTS: Mean age was 48.5 ± 11.2 years and 29% were women. The majority (95%) of patients were in NYHA functional class I and II. Mild pulmonary congestion by chest x-ray was found in 80% of the patients. In a multivariate analysis, left ventricular ejection fraction, right ventricular TEI index and the color M-mode velocity correlated with the degree of pulmonary congestion. CONCLUSIONS: Pulmonary venous changes on chest x-rays are frequent, but usually mild in patients with Chagas dilated cardiomyopathy. The degree of pulmonary congestion correlates with Doppler echocardiographic left and right ventricular dysfunction and with color M-mode velocity.

【 授权许可】

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