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.
Abstract

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