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Published on: February 5, 2021
Associated anomalies in congenital diaphragmatic hernia: perinatal characteristics and impact on postnatal survival
Insights
Congenital diaphragmatic hernia (CDH) with additional anomalies indicates a poor prognosis. However, intrathoracic liver presence and lung-to-thorax ratio (LTR) can help predict outcomes in complex CDH cases.
Area of Science:
- Perinatal medicine
- Fetal surgery
- Pediatric surgery
Background:
- Congenital diaphragmatic hernia (CDH) is a serious birth defect.
- Understanding factors influencing CDH prognosis is crucial for clinical management.
Purpose of the Study:
- To investigate clinical characteristics and postnatal outcomes of fetuses with CDH.
- To compare outcomes between isolated CDH and CDH with additional anomalies (complex CDH).
Main Methods:
- Retrospective chart review of fetuses with CDH (2005-2013).
- Classification into isolated and complex CDH groups.
- Analysis of polyhydramnios, liver herniation, stomach position, and lung-to-thorax transverse area ratio (LTR).
Main Results:
- 23 of 65 fetuses had complex CDH.
- Complex CDH showed higher rates of liver herniation, polyhydramnios, and mortality, with lower LTR.
- Lower mortality was observed with LTR <0.08 in complex CDH.
- Intrathoracic liver presence correlated with lower survival rates.
Conclusions:
- Complex CDH has a poor prognosis, influenced by associated anomalies and CDH severity.
- Intrathoracic liver and LTR are valuable prognostic indicators in complex CDH.
- These indicators aid in estimating postnatal outcomes for fetuses with CDH.
Objective:
We aimed to investigate the clinical characteristics and postnatal outcomes of fetuses with congenital diaphragmatic hernia (CDH) and additional anomalies.
Materials And Methods:
We reviewed the charts of fetuses with CDH managed between 2005 and 2013. Patients were divided into complex and isolated groups based on the presence of additional anomalies. We analyzed the respective polyhydramnios, liver herniation, stomach position, lung to thorax transverse area ratio (LTR), and prognoses of the two groups. The survival rates of both groups were assessed based on the LTR as well as on stomach and liver positions.
Results:
CDH was diagnosed in 65 fetuses, and additional anomalies were found in 23. The incidences of liver herniation, polyhydramnios, and death were significantly higher, and LTR was significantly lower, in the complex group. The mortality rate of fetuses with a LTR <0.08 was lower than that of fetuses with a LTR of ≥0.08 in the complex group. Further, the survival rate of fetuses with intrathoracic liver was lower than those without liver herniation.
Conclusions:
The prognosis of complex CDH is poor. This may result from both the associated anomalies and the severity of CDH itself. Even in complex CDHs, intrathoracic liver and LTR values are useful in estimating postnatal outcome.
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