Clinical trials

The goal of this clinical trial is to compare 2 different timepoints for clamping the umbilical cord at birth for term-born infants with a prenatal diagnosis of congenital heart disease (CHD). The main questions it aims to answer are: * Does Delayed Cord Clamping at 120 seconds (DCC-120) or Delayed Cord Clamping at 30 seconds (DCC-30) after birth lead to better health outcomes? * Does DCC-120 seconds or DCC-30 seconds after birth lead to better neuromotor outcomes at 22-26 months of infant age (postnatal)? Participants will be asked to do the following: * Participate in either DCC-120 or DCC-30 at birth (randomized assignment). * Complete General Movements Assessment (GMA) at 3-4 months of infant age (postnatal), complete questionnaires / surveys at this time. * Complete questionnaires / surveys at 9-12 months of infant age (postnatal). * Complete Hammersmith Infant Neurological Examination (HINE), Developmental Assessment of Young Children 2 Edition (DAYC-2), and questionnaires / surveys at 22-26 months of infant age (postnatal). * Permit data collection from electronic medical records for both the mother and infant study participants. Investigators will compare DCC-120 vs. DCC-30 to see which approach is more beneficial to both the mother and baby with CHD.