Congenital duodenal obstructions, often grouped under the term duodenal atresias, encompass a range of malformations of the duodenum that cause partial or complete obstruction. In the long term, the main complications described fall within the spectrum of digestive occlusions (anastomotic stenosis, obstruction due to adhesions, and duodenal dysmotility) and may require surgical revisions. Biliary and pancreatic complications, which are embryologically logical, are reported in the form of rare clinical cases. The aim of the research is to identify biliopancreatic complications following duodenal atresia surgery in order to characterize them, estimate their national frequency, and determine any potential iatrogenic risk factors.

Inclusion Criteria:

• Patients who underwent surgery for duodenal atresia in a pediatric surgery department participating in the study over the past 20 years,
• legal representatives did not object to data collection

Exclusion Criteria:

• Patients ≥ 16 years at the time of surgery.
• Objection from the legal representatives of the child or the adult patient to the collection and use of health data

Patients under 16 years who underwent surgery for duodenal atresia