The role of flexible endotherapy for the treatment of recurrent Zenker's diverticula after surgery and endoscopic stapling.

Background: Currently there are three main treatment options for Zenker's diverticulum (ZD): surgery, rigid endoscopy and flexible endoscopy. After primary success, recurrence can be as high as 19 % for surgery, 12.8 % for rigid endoscopy and 20 % for flexible endoscopy.

Flexible endoscopic treatment for Zenker's diverticulum with the SB Knife. Preliminary results from a single-center experience.

Background And Aim: Flexible endoscopic septum division is becoming a prominent treatment option for Zenker's diverticulum (ZD). Over the years, various techniques have been developed and many cutting tools have been tested with varying results. We report our experience with a recently designed, monopolar, rotating, scissor-shaped device (SB Knife).