Circulation, Vol 55, 513-519, Copyright © 1977 by American Heart Association
JB Seward, AJ Tajik, DJ Hagler and DG Ritter
Common ventricle is a rare congenital anomaly in which the ventricular
chamber receives blood from two separate atrioventricular valves or from a
common atrioventricular valve. We used contrast echocardiography during
cardiac catheterization to confirm ventricular anatomy and to characterize
blood flow dynamics in 35 patients with common ventricle. After injections
of dye, a cloud of echoes anterior to the mitral valve echo during the
rapid inflow phase of ventricular diastole is indirect evidence of common
ventricle with two atrioventricular valves. Common ventricle with an
outflow chamber is characterized by a smaller ventricular chamber
visualized anterior to both atrioventricular valves which opacifies with
subsequent ventricular systole. The arrival of all dye posterior to the
only recorded atrioventricular valve further established the presence of a
single atrioventricular valve. These contrast flow patterns gave greater
specificity to the standard M-mode echocardiographic assessment of patients
suspected of having common ventricle.
ARTICLES
Contrast echocardiography in single or common ventricle
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