Reverse Endoscopic Ultrasound-Guided Gastrojejunostomy for the Treatment of Superior Mesenteric Artery Syndrome: A New Concept.

Superior mesenteric artery syndrome (SMAS) causes compression and partial or complete obstruction of the duodenum, resulting in abdominal pain, nausea, vomiting, and weight loss. If conservative therapy fails, the patient is typically referred for enteral feeding or laparoscopic gastrojejunostomy. The last few years have seen increasing use of endoscopic ultrasound-guided gastrojejunostomy (EUS-GJ) for gastric obstruction indications. EUS-GJ involves the creation of a gastric bypass via an echoendoscope in cases in which the small intestine can be punctured under ultrasonographic visualization, resulting in an incision-free, efficient, and safe procedure. In this case report, we present the first case of SMAS treated using a reverse EUS-GJ, and describe the steps and advantages of the procedure in this particular case.