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Hypoplastic left heart syndrome
Insights
Prenatal diagnosis of hypoplastic left heart syndrome (HLHS) allows informed parental decisions and improves outcomes for affected newborns. Early detection ensures optimal surgical preparation, though long-term prognosis remains uncertain.
Area of Science:
- Pediatric Cardiology
- Fetal Medicine
- Congenital Heart Disease
Background:
- Hypoplastic left heart syndrome (HLHS) is a severe congenital heart defect.
- Accurate diagnosis is possible during fetal development.
- Historically, HLHS had an invariably lethal outcome.
Discussion:
- Prenatal diagnosis empowers parents with choices regarding management: surgery, non-intervention, or termination.
- Improved short-to-medium term survival rates are observed.
- Babies diagnosed prenatally can be prepared for surgery, optimizing their condition at intervention.
Key Insights:
- Fetal diagnosis of HLHS is accurate and timely.
- Informed parental choice is facilitated by prenatal detection.
- Enhanced preparation for neonatal surgery improves outcomes.
Outlook:
- Long-term prognosis for HLHS remains largely unknown.
- Continued improvements in survival are anticipated.
- Genetic counseling and detailed fetal echocardiography are recommended for families with a history of HLHS to assess recurrence risk.
Abstract:
Hypoplastic left heart syndrome may be accurately diagnosed during fetal life. Prenatal diagnosis provides the opportunity for parents to make an informed choice about their options, including surgery, nonintervention postnatally or termination of pregnancy. Short to medium term survival continues to improve for a condition that was previously invariably lethal. There continues to be a significant mortality and morbidity associated with hypoplastic left heart syndrome, and the long-term prognosis is unknown. Knowledge of the condition prior to birth means that babies who are to undergo surgery present in optimal condition for such interventions. Parents who have had an affected fetus or child should be offered detailed fetal echocardiography to exclude a recurrence in subsequent pregnancies.
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