Endoscopic Ultrasound-Guided Gastroenterostomy for Malignant Gastric Outlet Obstruction

First after an upper endoscopy is performed, a catheters passed throughout the endoscope channel and with x-ray verification, a guide wire is passed up to the third portion of duodenal loop. then small intestinal is filled with saline solution up to 1500cc and contrast solution. Then an endoscopic ultrasound examination will be carried out where a loop of the small intestine that is located less than 2 cm apart from the gastric wall will be looked for. Once the intestinal loop is identified a direct antegrade puncture will be performed with a luminal apposition prosthesis release system . Finally, correct position is verified with x-ray and we will look for any misplacement or leakage during this process or the presence of bleeding. Endoscopic treatment will be performed if necessary. Subsequently, the participants will go to monthly follow-up with clinical evaluation, laboratory and radiological test will be carried out until the participants dies.