Anomalous subaortic course of the left brachiocephalic (innominate) vein: echocardiographic diagnosis and report of an unusual association
Subaortic left brachiocephalic, or innominate, vein is an uncommon finding in congenital heart disease, usually associated with obstruction of the right ventricular outflow tract. We describe our experience with 14 patients in whom the lesion was identified echocardiographically, 12 of them with right ventricular obstruction, one with totally anomalous pulmonary venous connection in the absence of obstruction to the right ventricular outflow tract, and the final one with a normal heart. A precise diagnosis of this venous anomaly is of great importance, since it needs to be differentiated from a central pulmonary artery, a pulmonary venous confluence, or an ascending vertical vein in totally anomalous pulmonary venous connection. In patients referred for surgery without catheterization, an incorrect echocardiographic diagnosis could lead to disastrous surgical results.(Published Online August 15 2006)
(Accepted November 16 2001)
Key Words: Anomalous left brachiocephalic vein; echocardiography; total anomalous pulmonary venous connection.
c1 Correspondence to: Samira Morhy Borges Leal, Heart Institute, University of São Paulo, Av. Dr Eneas de Carvalho Aguiar, 44 Zip Code 05403-000, São Paulo SP, Brazil. Tel: +55 11 3069 5274; Fax: +55 11 3069 5293; E-mail: firstname.lastname@example.org