twin reversed arterial perfusion sequence
twin reversed arterial perfusion sequence (TRAP),
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.
Farlex Partner Medical Dictionary © Farlex 2012
twin re·versed ar·te·ri·al per·fu·sion se·quence
(twin rē-vĕrst' ahr-tēr'ē-āl pĕr-fyū'zhŭn sē'kwĕns)A circulatory anomaly in monozygotic twins in whom 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.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012