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Familial diaphragmatic agenesis: an autosomal-recessive syndrome with a poor prognosis

D L Gibbs1, H E Rice, J A Farrell

  • 1Division of Pediatric Surgery, University of California, San Francisco, USA.

Journal of Pediatric Surgery
|February 1, 1997
PubMed

Insights

Diaphragmatic agenesis, a severe congenital diaphragmatic hernia, shows an autosomal recessive inheritance pattern. This rare condition, affecting 13 fetuses across six families, has a poor prognosis and is distinct from other forms.

Area of Science:

  • Medical Genetics
  • Developmental Biology
  • Pediatric Surgery

Background:

  • Congenital diaphragmatic hernia (CDH) is a serious birth defect.
  • Diaphragmatic agenesis (DA) represents a severe subset of CDH.
  • Autosomal recessive inheritance has been hypothesized for DA.

Observation:

  • Six families with 13 pregnancies affected by diaphragmatic agenesis were studied.
  • The first documented instance of bilateral diaphragmatic agenesis in twins was reported.
  • All 13 affected fetuses did not survive.

Findings:

  • The study confirms an autosomal recessive inheritance pattern for diaphragmatic agenesis.
  • Familial diaphragmatic agenesis presents as a distinct clinical entity.
  • Diaphragmatic agenesis exhibits a significantly worse prognosis compared to posterolateral CDH.

Implications:

  • Understanding the genetic basis of diaphragmatic agenesis is crucial for genetic counseling.
  • Early identification and management strategies may be warranted for affected families.
  • Further research into the specific genetic mechanisms and potential interventions for DA is needed.

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