Endoscopic stent placement is a medical procedure that uses an endoscope to implant a stent (a tube) into a narrowed area of the digestive tract, such as the esophagus, small intestine, colon, or bile ducts. This procedure restores the passage of fluids or food in narrowed areas (strictures), often caused by tumors or other obstructions. The stent expands the area and helps keep it open. These procedures are performed under sedation.