Echocardiographic Assessment of the Pulmonary Venous Flow: An Indicator of Increased Pulmonary Flow in Congenital Cardiac Malformations

Echocardiographic Assessment of the Pulmonary Venous Flow: An Indicator of Increased Pulmonary Flow in Congenital Cardiac Malformations

Author Rivera, Ivan Romero Autor UNIFESP Google Scholar
Moisés, Valdir Ambrósio Autor UNIFESP Google Scholar
De Paola, Angelo Amato Vincenzo Autor UNIFESP Google Scholar
Carvalho, Antonio Carlos Autor UNIFESP Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Abstract OBJECTIVE: To identify the left inferior pulmonary vein as an indirect marker of increased pulmonary flow in congenital heart diseases.METHODS: We carried out a prospective consecutive study on 40 patients divided into 2 groups as follows: G1 - 20 patients diagnosed with congenital heart disease and increased pulmonary flow; G2 (control group) - 20 patients who were either healthy or had congenital heart disease with decreased or normal pulmonary flow. We obtained the velocity-time integral of the left inferior pulmonary vein flow, excluding the reverse A wave, with pulsed Doppler echocardiography.RESULTS: In G1, 19 out of the 20 patients had well-identified dilation of the left inferior pulmonary vein. No G2 patient had dilation of the left inferior pulmonary vein. Dilation of the left inferior pulmonary vein in conditions of increased pulmonary flow had sensitivity of 95%, specificity of 100%, positive predictive value of 100%, and negative predictive value of 95% (1 false-negative case). The integral of time and velocity of the pulmonary venous flow obtained with pulsed Doppler echocardiography was greater in the G1 patients (G1=25.0±4.6 cm versus G2=14.8±2.1 cm, p=0.0001).CONCLUSION: The identification of dilation of the left inferior pulmonary vein suggests the presence of congenital heart disease with increased pulmonary flow. This may be used as an indirect sign of increased flow, mainly in malformations of difficult diagnosis, such as atrial septal defects of the venous sinus or coronary sinus type.
Keywords echocardiography
pulmonary veins
congenital heart diseases
Language English
Date 2002-06-01
Published in Arquivos Brasileiros de Cardiologia. Sociedade Brasileira de Cardiologia - SBC, v. 78, n. 6, p. 541-544, 2002.
ISSN 0066-782X (Sherpa/Romeo)
Publisher Sociedade Brasileira de Cardiologia - SBC
Extent 541-544
Origin http://dx.doi.org/10.1590/S0066-782X2002000600001
Access rights Open access Open Access
Type Article
SciELO ID S0066-782X2002000600001 (statistics in SciELO)
URI http://repositorio.unifesp.br/handle/11600/1458

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