The respiratory complications of esophageal atresia have already been identified.

They are mainly related to tracheomalacia linked to the esophageal malformation, and are aggravated by frequently associated gastroesophageal reflux.

In this context, symptoms of asthma (or bronchial hyperreactivity) occur more frequently than in the general population and persist into adulthood. Their pathogenesis is still poorly understood and is the subject of much discussion.

The therapeutic management of these respiratory complications, poorly codified, remains very heterogeneous from one center to another. In France, the summary of knowledge is updated by the Reference Center for chronic and malformative diseases of the esophagus.

Inclusion criteria:

• Child aged 1 to 12 years old
• Child operated on for esophageal atresia between 01/01/2010 and 31/12/2020 and followed up at the University Hospitals of Strasbourg
• Child who has not expressed, after being informed, his opposition to the reuse of his data for the purposes of this research
• Parental authority having not expressed, after being informed, their opposition to the reuse of their child's data for the purposes of this research.

Exclusion criteria:

Subject and/or parental authority having expressed their opposition to participating in the study

Child aged 1 to 12 years old operated on for esophageal atresia and followed up at the University Hospitals of Strasbourg