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What is the prevalence of Superior Mesenteric Artery Syndrome?

How many people does Superior Mesenteric Artery Syndrome affect? Does it have the same prevalence in men and women? And in the different countries?

Prevalence of Superior Mesenteric Artery Syndrome

The prevalence of Superior Mesenteric Artery Syndrome (SMAS) is relatively rare, making it a less common condition. It is estimated to affect approximately 0.1% to 0.3% of the general population. SMAS occurs when the superior mesenteric artery compresses the third part of the duodenum, leading to various symptoms such as abdominal pain, nausea, vomiting, and weight loss. Although it is considered a rare condition, it is important to diagnose and treat SMAS promptly to prevent complications and improve the patient's quality of life.



Superior Mesenteric Artery Syndrome (SMAS) is a rare condition characterized by compression of the duodenum (the first part of the small intestine) between the superior mesenteric artery and the abdominal aorta. This compression leads to various gastrointestinal symptoms, including abdominal pain, nausea, vomiting, and weight loss.


The prevalence of SMAS is difficult to determine accurately due to its rarity and the lack of large-scale studies. However, it is estimated to affect approximately 0.013% to 0.3% of the general population. SMAS is more commonly observed in females, with a female-to-male ratio of about 3:1. The condition typically manifests in individuals between the ages of 10 and 39, although it can occur at any age.


SMAS can be caused by various factors, including rapid weight loss, prolonged bed rest, scoliosis, trauma, and anatomical abnormalities. Diagnosis often involves imaging techniques such as barium swallow studies, CT scans, and upper gastrointestinal endoscopy.


Early recognition and treatment of SMAS are crucial to prevent complications and improve patient outcomes. Treatment options may include conservative measures such as nutritional support, dietary modifications, and postural changes. In severe cases, surgical intervention may be necessary to relieve the duodenal compression.


Diseasemaps
4 answers
BOTH GENDERS. Happens in teens a lot after doing scoliosis surgery. Less than 3% of population.

Posted May 28, 2018 by Alexis 2500
Superior mesenteric artery syndrome effects less than 1% of the population. It is most common in female adults.

Posted Mar 14, 2020 by Macy Mae 2550
It seems to affect more females than males. You have a .013 chance of having SMAS. it seems to affect more children but there are many adults who suffer as well.

Posted Jan 28, 2021 by Babypay1 2650

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Stories of Superior Mesenteric Artery Syndrome

SUPERIOR MESENTERIC ARTERY SYNDROME STORIES
Superior Mesenteric Artery Syndrome stories
My name is Shawn and I live in Southern Oregon. I have the congenital form of SMAS. I didn't notice the changes going on back in 1991. It was my Wife that pointed out to me that I would often wake around 3-4am and vomit, very violently. Then I would ...
Superior Mesenteric Artery Syndrome stories
January 2011...I was rushed to hospital as 10 inches of my bowel had died, I had a bowel resection and 12 days later I was sent home, but within a day or too I was getting awful pain in my stomach after eating or drinking, being sick, no pain killers...
Superior Mesenteric Artery Syndrome stories
My name is Michelle and Alecia is my daughter.  Alecia got sick in April of 2009 and was diagnosed with gastroparesis a few months later.  It wasn't until March 1, 2011that she was diagnosed with SMAS.  She had her Lap Duodenojejunostomy done on J...
Superior Mesenteric Artery Syndrome stories
After months of being told its a stomach virus ..i sought outba second opinion.. she was seen with gi and what they thoight was either Crohn's disease or her  celiac acting up  instead found a clear cut case of Superior Mesenteric Artery Syndrome.....
Superior Mesenteric Artery Syndrome stories
Growing up I was a happy healthy child until I hit my teens !! It started with ovarian cysts and endometriosis which we. Managed to get it under control once I was put on a birth control shot. Then in 2004 it wasn't feeling too good again to find out...

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