No pouch, no problem: successful endoscopic division of a symptomatic cricopharyngeal bar using a modified peroral endoscopic myotomy technique for Zenker’s diverticulum

摘要

Cricopharyngeal bars (CPBs) are fibrous thickenings of the cricopharyngeus (CP) muscle that can rarely lead to dysphagia. Established treatment modalities include esophageal dilation, endoscopic botulinum toxin injection, and surgical cricopharyngeal myotomy. There has been no reported experience with peroral endoscopic myotomy (POEM) for symptomatic CPBs.