GIT Atresias Flashcards
1
Q
What is an atresia?
A
- = Absence or abnormal narrowing of an opening/passage
2
Q
What is wrong in biliary atresia?
A
- Congenital absence/severe deficiency of extrahepatic biliary tree
3
Q
Consequences of biliary atresia
A
- Neonatal cholestasis -> cirrhosis -> death
- Portal hypertension
4
Q
When does biliary atresia present?
A
2w-2mo
5
Q
What is wrong in oesophageal atresia?
A
inappropriate division of foregut into trachea and oesophagus
6
Q
When is oesophageal atresia detected?
A
• Antenatal - US, neonate - poor swallowing/aspiration
7
Q
How will you know if an oes atresia is associated with a trache-oes fistula?
A
• If there is air in the stomach and bowel with oesophageal atresia, implies distal fistula
8
Q
What kind of vomit is usually seen with duodenal atresia?
A
• Usually bilious vomiting as atresia usually distal to ampulla of vater
9
Q
What is a key feature seen on AXR with duodenal atresia?
A
- Double bubble sign (gas filled stomach and duodenum, with nothing behind)
- Also seen in duodenal stenosis
10
Q
What conditions are GI atresias often associated with?
A
- T21
- VACTERL
- Annular pancreas
- Other intestinal atresia
