Peroral Endoscopic Diverticulotomy (POED) for Zenker Diverticulum Using Submucosal Injection to Perform a Complete Myotomy.

Endoscopic diverticulotomy associated with cricopharyngeal myotomy is a well-known and safe treatment for Zenker diverticulum. We describe our first 5 consecutive cases treated by a new variant of the technique that allows a deeper and longer myotomy than the standard one. Technical success was achieved in all the cases. All patients showed a significant improvement and relevant disappearance of preoperative dysphagia. Tips for the technique are described in the paper. This variant of peroral endoscopic diverticulotomy for Zenker diverticulum is feasible, effective, and guarantees a complete myotomy in selected patients.