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Aim

To determine the role of EUS in patients with ARP, PCS and chronic abdominal pain during the evaluation of SOM.

Methods

Over a 6 year period, 522 patients underwent simultaneous SOM and EUS at St. Luke's Medical Center, Pancreatic Biliary Center, Milwaukee, WI. This included 207 patients with PCS, 150 with ARP and 165 patients with chronic pain with intact gallbladders. All patients had negative laboratory, cross sectional imaging and routine endoscopy. EUS was performed with Olympus radial echoendoscope. SOM was performed during ERCP using a triple lumen perfusion catheter with evaluation of the appropriate sphincter. Sedation was performed under general anesthesia.

Results

In the patients presenting with ARP (n= 150), 87 (58%) had abnormal studies, including 66 with features suggestive or diagnostic of chronic pancreatitis (Rosemont Criteria) and 6 patients with pancreatic neoplasm …