Endoscopic stent therapy in advanced chronic pancreatitis: relationships between ductal changes, clinical response, and stent patency

Morgan, Desiree E.; Smith, J.Kevin; Hawkins, Kidaday; Wilcox, C.Mel
April 2003
American Journal of Gastroenterology;Apr2003, Vol. 98 Issue 4, p821
Academic Journal
: ObjectivePancreatic duct stenting is now recognized as a treatment option for a number of pancreatic disorders. Although stent-induced ductal changes may result, there is little information regarding the frequency of these stent-induced changes in chronic pancreatitis and their relationship to stent occlusion and clinical response. Our objectives were to evaluate pancreatic ductal changes after endoscopic stenting in patients with preexisting radiographic evidence of chronic pancreatitis and to evaluate the relationships between ductal changes, pain response, and stent patency.: MethodsTwenty-five consecutive patients had 40 stent placement episodes. Main pancreatic duct diameter, pancreatitis grade, preexisting obstructive lesions, and stent-induced strictures were recorded. Pain response and stent patency were correlated with main pancreatic duct caliber change using χ2 analysis.: ResultsIn 28 (70%) of 40 episodes, main pancreatic duct caliber increased or was unchanged after stenting; pain improved in 20 (71%) of 28. Pain improved in six (50%) of 12 patients with smaller ducts after stenting. Stent patency was documented upon retrieval in 34 episodes; most stents were occluded. Stent-induced strictures developed in 18% of 40 stent episodes.: ConclusionMain pancreatic duct caliber after endoscopic stenting was not a good indicator of pain response or stent patency; main pancreatic duct was often larger, and even with stent occlusion, patients’ symptoms were frequently improved. Stent-induced strictures were infrequent, compared with values previously reported in the literature.


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