[15] Transfusion of asymptomatic infants with anemia has not been shown ... but is limited by having a 24-hour shelf life. [1] Exchange transfusions are usually done through an umbilical venous ...

In the absence of such knowledge it was speculated that exchange transfusion might temporarily lower the level of a protein-bound injurious factor and at the same time supply essential proteins ...

Material and methods: All newborn infants with umbilical vascular ... There was history of exchange transfusion for hyperbilirubinemia via umbilical vein in two neonates with PVT.