Neonates with congenital heart disease

Area of Science:

• Pediatric Cardiology
• Neonatal Surgery
• Critical Care Medicine

Background:

• Early reparative surgery for congenital heart disease (CHD) in neonates and infants is now standard practice.
• Advancements in cardiopulmonary bypass, surgical techniques, and perioperative management have reduced mortality and morbidity.
• While successful for two-ventricle repairs, early repair strategies face challenges in newborns with single-ventricle defects, particularly hypoplastic left heart syndrome (HLHS).

Purpose of the Study:

• To review recent literature (past 12 months) on the management of newborns with single-ventricle defects.
• To identify predictors of early and late outcomes and guide patient management strategies.
• To summarize emerging research on attenuating the inflammatory response to bypass and managing postoperative complications.

Main Methods:

• Literature review of articles published within the last 12 months.
• Synthesis of findings related to classification, prenatal diagnosis, treatment options, and outcome predictors for single-ventricle defects.
• Summary of research on inflammatory response, necrotizing enterocolitis, lactate as a perfusion index, markers of injury, and mechanical circulatory support.

Main Results:

• Significant progress has been made in early reparative surgery for CHD, extending to premature and low-birth-weight infants.
• Newborns with single-ventricle defects, especially HLHS, experience higher mortality compared to two-ventricle repairs.
• Research is focusing on identifying outcome predictors and strategies to mitigate adverse responses, including inflammation, necrotizing enterocolitis, and organ injury.

Conclusions:

• While early repair has transformed CHD care, single-ventricle defects remain a critical challenge in neonatal cardiac surgery.
• Continued research into predictive markers and management strategies is essential for improving outcomes in high-risk neonates.
• Addressing the heightened inflammatory response and specific complications like necrotizing enterocolitis is crucial for advancing neonatal cardiac critical care.