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Eur J Med Genet. 2009 Sep-Oct;52(5):281-6. doi: 10.1016/j.ejmg.2009.05.005. Epub 2009 May 21.

The etiology of congenital diaphragmatic hernia: still largely unknown?

Author information

  • 1Department of Pediatric Surgery, Erasmus MC, Medical University Center, room Ee9.71, PO Box 2040, 3000 CA Rotterdam, The Netherlands. merel_klaassens@hotmail.com

Abstract

Congenital diaphragmatic hernia (CDH) is a severe birth defect characterized by a defect in the diaphragm associated with pulmonary hypoplasia and postnatal pulmonary hypertension. Half of the cases present with other non-pulmonary congenital anomalies (so called non-isolated CDH) and in 5-10% of cases there is a chromosomal etiology. The clinical aspects of CDH are well documented but knowledge on the etiology of CDH is largely lacking. Worldwide many researchers have focused research efforts on CDH. Their findings have led to several hypotheses proposing roles for genetic and environmental factors. In this review we have combined these findings with our own research on the genetics of CDH in results from recent literature and propose a theory on the etiology of CDH. We also propose a protocol for the CDH patient that will help clinicians and researchers to obtain maximal success out of their collaborations that will eventually lead to unravelling the etiology of this intriguing birth defect.

PMID:
19464395
[PubMed - indexed for MEDLINE]
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