a condition in which the duodenum is narrowed, causing complete obstruction. It presents at birth with vomiting, which is usually bile-stained, and is associated with other congenital abnormalities, particularly Down's syndrome. Treatment is correction of any fluid imbalance followed by surgical repair.
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atresia of a portion of the duodenum, a type of intestinal atresia; infants have vomiting a few hours after birth, cessation of bowel movements after one to three days, and usually distention of the epigastrium. The condition is often associated with Down syndrome.Medical dictionary. 2011.