Duodenal obstruction from chronic pancreatitis.

The fibrosclerosing process of the pancreas in the chronic pancreatitis may constrict not only the pancreatic duct but also the bile duct, splenoportal venous system and duodenum. In our retrospective study we analysed 24 patients with duodenal obstruction associated with chronic pancreatitis. Duodenal obstruction was suspected whenever repeated vomiting occurred or large volumes of nasogastric aspirate were obtained. The diagnosis was confirmed by barium meal and endoscopic examination. Duodenal obstruction was relieved by gastrojejunostomy in eight patients, gastrojejunostomy and vagotomy in eight patients, gastroduodenostomy and vagotomy in two patients, vagotomy with Finney pyloroplasty in one patient, duodenoplasty with vagotomy in one patient and Whipple procedure in four patients. We concluded that vagotomy and gastroenterostomy are the procedures of choice. Bypass surgery is helpful to relieve the obstruction of the common bile duct and pancreatic duct. Whipple procedure should be reserved for the small duct form of chronic pancreatitis and for the cases in which there is high suspicion of malignancy.