vasa previa


va·sa pre·vi·a

umbilical vessels presenting in advance of the fetal head, usually traversing the membranes and crossing the internal uterine os.

va·sa pre·vi·a

(vā'să prē'vē-ă) Umbilical vessels presenting in advance of the fetal head, usually traversing the membranes and crossing the internal cervical os.

vasa previa

, vasa praeviaThe blood vessels of the umbilical cord presenting before the fetus.See also: vasa