Botulinum Toxin Injection for the Treatment of Upper Esophageal Sphincter Dysfunction

摘要

ObjectivesWe sought to review the dysphagia-related outcomes and quality of life in a series of patients with upper esophageal sphincter (UES) dysfunction treated with cricopharyngeal (CP) botulinum toxin (BTX) injection, and to identify patient characteristics or CP muscle histologic features that predict efficacy of BTX injection.