Wilkie's Weight Loss Wonder, A Case Series

Wilkie's Syndrome, also known as Superior Mesenteric Artery Syndrome (SMAS), is a rare cause of bowel obstruction that can contribute to vague abdominal symptoms on clinical presentation. This syndrome occurs when the aortomesenteric angle decreases, compressing the third portion of the duodenum between the aorta and the superior mesenteric artery. An acute decrease in the mesenteric fat pad cushion between these two blood vessels is the primary etiology, although other causes (e.g., anatomical, postoperative, functional, and pubescent etiologies) have also been described.

In the present cases, 2 females with a common history of recent weight loss presented to our institution with similar symptoms of abdominal pain, nausea and vomiting. Each patient was subsequently diagnosed with SMAS following imaging studies. Both patients experienced successful resolution of symptoms with conservative nutritional management.

Common presenting complaints of SMAS include nausea, vomiting, early satiety and postprandial pain. These symptoms overlap with other gastrointestinal disorders (i.e., mesenteric ischemia, intestinal volvulus, peptic ulcer disease) making diagnosis difficult. SMAS can be identified through imaging modalities including barium studies and computer tomography. First line therapies typically include conservative nutritional support and promotion of weight gain. If conservative therapies fail, various surgical procedures can be pursued. Delayed diagnosis can lead to further pathological sequelae, including duodenal compromise, ischemia and necrosis. As the syndrome progresses, success of conservative nutritional support is less likely, and surgical correction becomes increasingly necessary.

Therefore, a clinical goal for SMAS should include as swift a recognition and diagnosis as possible.