Randomized trial compares 30 vs. 120-second delayed cord clamping for neonates with congenital heart disease
Background
Neonates born with congenital heart disease (CHD) face significant challenges, often requiring complex medical interventions and having increased risks for neurodevelopmental impairments. The timing of umbilical cord clamping can profoundly impact a newborn's blood volume, iron stores, and cardiovascular stability due to placental transfusion. While delayed cord clamping (DCC) is generally recommended for healthy term infants to improve outcomes, its optimal timing for infants with CHD, who have unique hemodynamic vulnerabilities, remains unclear. Current standard-of-care practices vary, and there's a critical gap in evidence-based guidelines for this high-risk population, potentially affecting their immediate postnatal adaptation and long-term neurodevelopment.
Study Design
This randomized clinical trial is designed to compare two distinct delayed cord clamping (DCC) protocols in term-born infants with a prenatal diagnosis of congenital heart disease. Participants are randomized to either DCC-120 (cord clamping at 120 seconds after birth) or DCC-30 (cord clamping at 30 seconds after birth). Primary endpoints include overall health outcomes and neuromotor outcomes at 22-26 months postnatal age. Infants will undergo General Movements Assessment (GMA) at 3-4 months, and Hammersmith Infant Neurological Examination (HINE) and Developmental Assessment of Young Children 2 Edition (DAYC-2) at 22-26 months. Questionnaires and surveys are administered at multiple timepoints, and electronic medical records are utilized for comprehensive data collection for both mother and infant.
Results
This is a clinical trial protocol, and no results are available yet. The study aims to compare the effects of two different delayed cord clamping durations on health and neuromotor outcomes in neonates with congenital heart disease. Once completed, the trial will provide specific data regarding the impact of DCC-120 versus DCC-30 on these critical endpoints, including detailed statistical comparisons of various developmental assessments and health metrics. The investigators will analyze which approach is more beneficial for both the mother and the infant with CHD.
Why It Matters
Optimizing cord clamping timing for infants with congenital heart disease could significantly improve their immediate postnatal adaptation and long-term neurodevelopmental trajectory. If DCC-120 or DCC-30 demonstrates superior outcomes, it could lead to a paradigm shift in delivery room management for this vulnerable population. Establishing an evidence-based protocol for cord clamping in CHD infants would provide clinicians with clear guidance, potentially reducing complications and enhancing quality of life. This research is crucial for refining existing protocols, ensuring that infants with CHD receive the most beneficial start to life, and could influence global clinical practice guidelines for high-risk neonates.
congenital-heart-disease
neonatal-care
cord-clamping
neuromotor-development
clinical-trial
pediatrics