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J Med Genet 43:545-554 doi:10.1136/jmg.2005.038158
  • Review

Oesophageal atresia, tracheo-oesophageal fistula, and the VACTERL association: review of genetics and epidemiology

  1. C Shaw-Smith
  1. Correspondence to:
 Charles Shaw-Smith
 Department of Medical Genetics, Box 134, Addenbrooke’s Hospital, Hills Road, Cambridge CB2 2QQ, UK;charles.shaw-smith{at}addenbrookes.nhs.uk
  • Accepted 8 November 2005
  • Revised 7 November 2005
  • Published Online First 18 November 2005

Abstract

Oesophageal atresia and/or tracheo-oesophageal fistula are relatively common malformations occurring in approximately 1 in 3500 births. In around half of the cases (syndromic oesophageal atresia), there are associated anomalies, with cardiac malformations being the most common. In the remainder (non-syndromic cases), oesophageal atresia/tracheo-oesophageal fistula occur in isolation. Data from twin and family studies suggest that genetic factors do not play a major role, and yet there are well-defined instances of this malformation where genetic factors clearly are important. This is highlighted by the recent identification of no fewer than three separate genes with a role in the aetiology of oesophageal atresia: those for Feingold syndrome (N-MYC), anophthalmia-oesophageal-genital (AEG) syndrome (SOX2), and CHARGE syndrome (CHD7). Additional support for genetic factors in this malformation comes from chromosomal studies and mouse models. This paper reviews current knowledge of the genetics and epidemiology of the different oesophageal atresia/tracheo-oesophageal fistula syndromes and associations.

Footnotes

  • Published Online First 21 November 2005

  • Competing interests: none declared