What is the effect of delayed cord clamping of at least a minute?

Delayed cord clamping for at least a minute has a beneficial effect in reducing the risk of intraventricular hemorrhage (IVH) in newborns, particularly in preterm infants. When the umbilical cord is clamped later, there is an opportunity for the baby to receive additional blood from the placenta. This extra blood volume can help improve the newborn's circulatory stability and reduce the likelihood of brain injury due to fluctuations in blood flow and pressure, which are risk factors for developing IVH. Additionally, it allows for better transition of the newborn's physiology as they begin to breathe air, and aids in establishing more stable hematocrit levels, further impacting brain health positively.

While the other choices reflect some changes that may occur following various interventions or conditions in newborns, they don't specifically correlate with the direct, established benefits associated with delayed cord clamping. Therefore, the link between delayed cord clamping and reduced risk of IVH is the most relevant and significant aspect of this practice within newborn care.