Congenital Gastrointestinal Malformations

Many congenital gastrointestinal malformations are first suspected during pregnancy, when a routine ultrasound identifies polyhydramnios or a visibly abnormal pattern in the baby's digestive tract. After birth, the diagnosis is often confirmed through a combination of physical examination and imaging. An abdominal X-ray can reveal a characteristic pattern of trapped air that points toward the location of a blockage, and additional studies, such as a contrast study in which a small amount of safe liquid contrast is given to outline the digestive tract on X-ray, may be used to pinpoint the exact site and nature of the malformation. For esophageal atresia specifically, the inability to pass a soft feeding tube from the mouth into the stomach is often the first clue, prompting confirmatory imaging.

Treatment for congenital gastrointestinal malformations is surgical in nearly all cases, and the approach depends on the specific type and location of the blockage. Before surgery, a baby is typically stabilized with intravenous fluids and a tube placed to keep the stomach empty and prevent further vomiting, while feeding by mouth is paused. Surgery aims to remove or bypass the blocked segment and reconnect the digestive tract so that its contents can pass through normally; for esophageal atresia, this involves connecting the two ends of the esophagus, while for intestinal atresias, the affected segment is typically removed and the healthy ends of intestine are joined together. Most infants require a period of recovery in a neonatal intensive care unit afterward, during which nutrition is provided intravenously before a gradual transition to feeding by mouth as the digestive tract heals and begins to function normally.