Endoscopic Manometry of the Sphincter of Oddi and the Pancreatic and Biliary Ducts in Patients with Chronic Pancreatitis

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Abstract
Sphincter of Oddi activity and the common bile duct (CBD) and pancreatic duct (PD) pressures were measured by means of endoscopic manometry in 15 patients (11 men and 4 women aged 18-77 (median, 40) years) with various degrees of chronic pancreatitis. Eleven of the 15 patients studied had an abnormal manometric pattern: elevated base-line pressures were seen in 8 patients, elevated duct pressures in 6 patients, abnormal peristalsis in 6 patients, and discoordination in 4 patients. There was no relation between the severity of chronic pancreatitis as shown by endoscopic retrograde pancreatography and the pancreatic function test and the manometric findings. However, a positive correlation between the sphincter of Oddi base-line pressure and the pancreatic duct pressure was found. It is concluded that manometric abnormalities are common findings in patients with chronic pancreatitis. Whether this is primary or secondary to the inflammatory process is still uncertain.