Unsedated transnasal endoscopy (the Shaker technique): an alternative for assessment of supraesophageal complications of gastroesophageal reflux

This article reviews problems associated with sedated endoscopy, and describes the rationale for unsedated endoscopy as an alternative. Costs, tolerability, potential for complications, and general patient and physician acceptance for unsedated endoscopy are reviewed. A new technique, the transnasal esophagogastroduodenoscopy (the Shaker technique), is described.