Endoscopic sphincterotomy (EST) induced symptomatic and somatosensory changes in the referred pain area in patients with definitive sphincter of oddi dysfunction

Introduction: We previously demonstrated that in patients with definitive sphincter of Oddi dysfunction (SOD) the sensory current perception threshold ratio (SCPTR) between the referred pain area (RPA) and contralateal area measured by Neuromoter CPT were significantly different and proved a cutaneous hypersensitivity in the RPA. The aim of the present study was to evaluate the changes of biliary pain complaints and SCPTR after the EST. Methods: 20 patients with persistent biliary pain with clinically definitive SOD were investigated by our validated questionnaire and quantitative sensory testing (Neurometer® CP…