Flashcards in GIT Atresias Deck (10):
What is an atresia?
- = Absence or abnormal narrowing of an opening/passage
What is wrong in biliary atresia?
- Congenital absence/severe deficiency of extrahepatic biliary tree
Consequences of biliary atresia
- Neonatal cholestasis -> cirrhosis -> death
- Portal hypertension
When does biliary atresia present?
What is wrong in oesophageal atresia?
inappropriate division of foregut into trachea and oesophagus
When is oesophageal atresia detected?
• Antenatal - US, neonate - poor swallowing/aspiration
How will you know if an oes atresia is associated with a trache-oes fistula?
• If there is air in the stomach and bowel with oesophageal atresia, implies distal fistula
What kind of vomit is usually seen with duodenal atresia?
• Usually bilious vomiting as atresia usually distal to ampulla of vater
What is a key feature seen on AXR with duodenal atresia?
- Double bubble sign (gas filled stomach and duodenum, with nothing behind)
- Also seen in duodenal stenosis