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Congenital diaphragmatic hernia: advances in prenatal therapy
Roman M Sydorak1, Michael R Harrison
1The Fetal Treatment Center, Department of Surgery, Division of Pediatric Surgery, University of California, San Francisco, 513 Parnassus Avenue, HSW-1601, San Francisco, California 94143-0570, USA.
Insights
Congenital diaphragmatic hernia (CDH) is a common cause of infant death. Advances in prenatal diagnosis now stratify fetuses into risk groups, improving survival for low-risk infants and guiding prenatal intervention for high-risk cases.
Area of Science:
- Neonatal Medicine
- Pediatric Surgery
- Medical Diagnostics
Background:
- Congenital diaphragmatic hernia (CDH) significantly contributes to neonatal morbidity and mortality.
- The clinical presentation of CDH varies widely, from mild cases manageable with neonatal care to severe cases with poor outcomes.
- Recent research has advanced prenatal diagnosis and understanding of CDH's natural history.
Purpose of the Study:
- To review advances in prenatal diagnosis of congenital diaphragmatic hernia.
- To discuss the stratification of fetuses with CDH into risk groups.
- To highlight the evolving strategies for prenatal and postnatal treatment of CDH.
Main Methods:
- Review of research over the past two decades.
- Analysis of sonographic parameters for fetal risk stratification.
- Evaluation of current neonatal care and prenatal intervention strategies.
Main Results:
- Fetuses with CDH can be classified into "low" and "high" risk categories using sonographic data.
- "Low risk" fetuses demonstrate a high survival rate with standard postnatal care.
- "High risk" fetuses are candidates for prenatal intervention.
Conclusions:
- Prenatal diagnosis and risk stratification have improved outcomes for infants with CDH.
- Targeted prenatal intervention is crucial for "high risk" fetuses.
- Continued research aims to enhance both prenatal and postnatal management of CDH.
Abstract:
Congenital diaphragmatic hernia (CDH) is one of the most common causes of neonatal morbidity and mortality. The clinical spectrum of CDH ranges from minimally affected infants who do well with modern neonatal care to severely affected infants who die despite all interventions. Two decades of research have led to advances in the prenatal diagnosis of CDH and have better defined the natural history of CDH. Fetuses with CDH now can be stratified into "low" and "high" risk groups based on sonographic parameters. "Low risk" fetuses have an excellent chance of survival with postnatal therapy. Prenatal intervention is reserved for "high risk" fetuses. Ongoing research is focused on improving both prenatal and postnatal treatment of these severely affected infants.