SMA syndrome
Background
- Full name: Superior Mesenteric Artery Syndrome
- Rare condition
- Occurs when the duodenum is compressed between the aorta and the superior mesenteric artery
- Can lead to partial or complete gastrointestinal obstruction at the level of the duodenum
Clinical Features
- Early satiety
- Nausea and vomiting, can be bilious
- Abdominal pain, mid-abdomen which may be improved with changes of position
- Abdominal bloating, especially after meals
- Bleching
- Weight loss
- Proximal small bowel obstruction
Differential Diagnosis
- See Abdominal Pain
- See Nausea and vomiting