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Should what we know about neurobehavioral development, complex congenital heart disease, and brain maturation affect
1Children's Hospital Boston, Department of Anesthesiology, Boston, MA 02115, USA. james.dinardo@childrens.harvard.edu
Insights
Infants with complex congenital heart disease often experience adverse neurobehavioral outcomes after cardiac surgery. Their developing brains are uniquely vulnerable to injury, and delaying surgery for maturation may improve outcomes.
Area of Science:
- Neonatal neurology
- Pediatric cardiology
- Neurodevelopmental outcomes
Background:
- Adverse neurobehavioral outcomes are common after neonatal and infant cardiac surgery, despite improved perioperative care.
- Complex congenital heart disease is linked to abnormal fetal brain development and delayed maturation.
- Neonates with complex congenital heart disease show significant cerebral ischemic/hypoxic injury before and after surgery.
Purpose of the Study:
- To investigate the vulnerability of the neonatal brain to perioperative injury in complex congenital heart disease.
- To explore the potential benefits of delaying surgical correction for improved brain maturation and neurobehavioral outcomes.
Main Methods:
- Review of existing literature on neonatal brain development and injury in congenital heart disease.
- Analysis of neurobehavioral outcomes in relation to perioperative care and surgical timing.
- Assessment of cerebral ischemic/hypoxic injury markers in affected neonates.
Main Results:
- The neonatal brain in complex congenital heart disease cases exhibits unique vulnerability to perioperative ischemic/hypoxic injury.
- Cerebral injury is detectable both preoperatively and postoperatively in these infants.
- Current data suggests a high incidence of neurobehavioral deficits.
Conclusions:
- Neonatal and infant brains with complex congenital heart disease are highly susceptible to perioperative injury.
- Further research is needed to determine if delaying surgical intervention to allow for brain maturation can mitigate these adverse neurobehavioral outcomes.
Abstract:
Despite remarkable improvements in perioperative care, adverse neurobehavioral outcomes following neonatal and infant cardiac surgery are commonplace and are associated with substantial morbidity. It is becoming increasingly clear that complex congenital heart disease is associated with both abnormalities in neuroanatomic development and a delay in fetal brain maturation. Substantial cerebral ischemic/hypoxic injury has been detected in neonates with complex congenital heart disease both prior to and following corrective cardiac surgery. The brain of the neonate with complex congenital heart disease appears to be uniquely vulnerable to the types of ischemic/hypoxic injury associated with perioperative care. It remains to be determined whether delaying surgical correction to allow for brain maturation will be associated with improvements in neurobehavioral outcomes.
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