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J Am Soc Echocardiogr. 2009 Nov;22(11):1296-301. doi: 10.1016/j.echo.2009.08.008. Epub 2009 Oct 7.

Left ventricle to right ventricle size discrepancy in the fetus: the presence of critical congenital heart disease can be reliably predicted.

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1
The Cardiac Center at The Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA. Quartermain@email.chop.edu

Abstract

BACKGROUND:

Prenatal ventricular size discrepancy with disproportionately smaller left ventricle than right ventricle (L-R/VD) can be a marker for important left-sided structural heart disease in the newborn.

METHODS:

We reviewed the echocardiograms of all fetuses evaluated at our center with L-R/VD from July 1, 2004 to January 1, 2008.

RESULTS:

Of the 35 fetuses, 20 (57%) had critical arch obstruction and underwent neonatal intervention (group 1); 15 (43%) did not require newborn intervention (group 2). Ratios comparing left with right heart structures were significantly lower in group 1 fetuses compared with group 2 fetuses. Aortic arch measurement <or= 3 mm was the most sensitive, and abnormal direction of atrial level shunting was the most specific measure to predict the need for neonatal aortic arch intervention.

CONCLUSION:

Ratios expressing the magnitude of L-R/VD, direction of flow at the atrial septum, and measurements of the aortic arch help identify fetuses that will require neonatal intervention.

PMID:
19815386
DOI:
10.1016/j.echo.2009.08.008
[Indexed for MEDLINE]
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