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twin reversed arterial perfusion sequence

 

Definition: a circulatory anomaly in monozygotic twins wherein there are placental arterioarterial and venovenous anastomoses and umbilical anomalies, with one fetus being perfused with deoxygenated blood; the recipient fetus develops as an acardiac acephalic, and the pump or donor twin is at risk for cardiac failure.

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.

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