Sphincter of Oddi manometry

SOD manometry is currently used for the diagnosis of patients with sphincter dysfunction causing biliary-type pain or recurrent pancreatitis who will benefit from endoscopic sphincterotomy. SOM remains one of the most challenging endoscopic procedures, combining the need for extensive ERCP skills with manometric knowledge. SOM has one of the highest risk/benefit ratios of any endoscopic test, making appropriate patient selection and counseling critical before its performance. Technology advances have concentrated on the safety profile of SOM by decreasing pancreatitis rates. Studies are ongoing and needed to identify the patients who require SOM and will benefit from its use.