Laparascopic vs. Laparotomy Management of Neonatal Duodenal Atresia

Inclusion criteria: * Minor subject * Subject having undergone neonatal surgery for congenital duodenal atresia or stenosis in the different participating centers between January 2009 and December 2019 * Subject (and/or his/her parental authority) who has not expressed, after information, his/her opposition to the reuse of his/her data for the purpose of this research Criteria for non-inclusion: * Subject (and/or his/her parental authority) who has indicated, after information, his/her opposition to the re-use of his/her data for the purposes of this research * Conversion linked to a renunciation of the surgeon, procedure not started (optical introduction, unfeasibility by the surgeon due to lack of experience or technical impossibility)