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J Ultrasound Med. 2009 Oct;28(10):1369-74.

Preload index of the inferior vena cava as a possible predictive marker of hydropic changes in fetuses with Ebstein anomaly.

Author information

  • 1Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Kyushu University, Higashiku, Fukuoka, Japan. n-hidaka@kpa.biglobe.ne.jp

Abstract

OBJECTIVE:

We aimed to investigate whether the preload index of the inferior vena cava (PLI-IVC) is of diagnostic value in predicting hydropic changes in fetuses with Ebstein anomaly.

METHODS:

Five cases of prenatally diagnosed Ebstein anomaly, which were managed at our institution between 1999 and 2008, were retrospectively reviewed. The PLI-IVC was calculated as the ratio between the reversed flow velocity from the right atrium and the forward velocity of the IVC.

RESULTS:

The PLI-IVC was high in all the cases. In 2 cases, PLI-IVC values tended to increase gradually before hydropic changes were recognized. In the cases without hydrops, PLI-IVC values exhibited a nonlinear trend throughout gestation and did not show any apparent increase.

CONCLUSIONS:

The upward trend of the PLI-IVC rather than the maintenance of a high value can be considered a sign of cardiac failure. The blood flow pattern in the IVC should be carefully monitored in fetuses with Ebstein anomaly for the early identification of fetal impairment.

PMID:
19778884
[PubMed - indexed for MEDLINE]
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