Circulation, Vol 56, 959-968, Copyright © 1977 by American Heart Association
DJ Sahn, HD Allen, W George, M Mason and SJ Goldberg
In order to assess the utility of contrast M-mode echocardiography in an
intensive care nursery population of critically ill newborns with cardiac
and pulmonary disease and to validate contrast echo methods, we performed
200 serial contrast echoes on 40 infants via umbilical arterial or venous
catheters which had been placed into these infants for clinical
indications. The resulting contrast echoes recorded from the precordium or
the suprasternal notch allowed the delineation of intra- and extracardiac
right-to-left and left-to-right shunting patterns. Patterns identified and
validated by cardiac catheterization (in cardiac patients) were:
right-to-left atrial shunts, right-to-left ventricular shunts, and
left-to-right patent ductus arteriosus shunts. The studies were without
complication. Serial application of these echocardiographic techniques was
extremely important in assessing changing physiology in these neonates.
Contrast echocardiography adds physiologic flow information to the
anatomical information available from M-mode echoes and is quite important
in the diagnosis and sometimes in the management of critically ill
newborns.
ARTICLES
The utility of contrast echocardiographic techniques in the care of critically ill infants with cardiac and pulmonary disease
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