Endoscopic Treatment for Zenker's Diverticulum

Zenker's diverticulum (ZD) is a rare benign condition, due to an acquired sac-like outpouching of the mucosa and submucosa layers originating from the pharyngoesophageal junction. Endoscopic techniques like flexible endoscopic septum division (FESD) or per-oral endoscopic septotomy (POES), represent a minimally invasive alternative to surgery or to rigid endoscopic procedure to treat ZD. The goal of the research will be to evaluate the safety of the procedures and to measure Zenker-symptom severity in all patients treated by endoscopic procedures.