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Ultrasound Obstet Gynecol. 2004 May;23(5):509-12.

Successful intrauterine treatment with radiofrequency ablation in a case of acardiac twin pregnancy complicated with a hydropic pump twin.

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  • 1Department of Obstetrics and Gynecology, Shiga University of Medical Science, Ohtsu, Japan.


Twin reversed arterial perfusion sequence is a serious complication of monochorionic twin pregnancy, as the pump twin that perfuses blood to the acardiac twin may experience heart failure and fetal hydrops resulting in a poor perinatal outcome. A woman with an acardiac twin pregnancy complicated by a hydropic pump twin underwent intrauterine treatment with radiofrequency ablation (RFA) at 27 weeks of gestation. Obliteration of blood flow to the acardiac twin from the pump twin was successful. Fetal hydrops resolved by the time of delivery at 32 weeks of gestation, in spite of transient deterioration, and a good postnatal outcome was achieved for the pump twin. We found that RFA was an effective intrauterine treatment for acardiac twin pregnancy and suggest that it could be introduced in cases complicated by a hydropic pump twin.

Copyright 2004 ISUOG. Published by John Wiley & Sons, Ltd.

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