Resources for patients under 18
WHAT CAUSES SMAS IN CHILDREN?
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SMAS has a variety of causes, most of which relate to the SMA-aortic angle. The intestine is located in between these two arteries, and if the space between them is too small, the intestine is compressed or squished. This makes it is more difficult for food to pass through, like trying to drink out of a straw that is being crushed.
The angle can be reduced by loss of the mesenteric fat pad. The fat pad is fatty tissue that surrounds the mesenteric artery and helps to hold open the angle. Weight loss causes the fat pad to reduce and the angle to narrow. Spinal conditions, surgery, bedrest, and comorbid diseases can also cause the angle to narrow.
COULD MY CHILD HAVE SMAS?
Learn more about this rare disease.
Feeling full quickly
Nausea & Vomiting
Small Bowel Obstruction
Loss of fat pad
Rapid growth spurt
CT angiogram (CTA)
Contrast study (UGIS)
The first line of treatment is often management via high calorie diets, positioning, and feeding tubes.
There are several surgical options for SMAS that have great success rates.
Diet & Nutrition
High calorie diets and meal replacement shakes are ideal to regain the mesenteric fat pad.
SMAS patients may have these conditions as well:
Find a Pediatric Doctor
*Provider submissions are provided by patients and have no affiliation with the SMAS Nonprofit.