eISSN: 1897-4317
ISSN: 1895-5770
Gastroenterology Review/Przegląd Gastroenterologiczny
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2/2018
vol. 13
 
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Intraductal pancreatic stent fragmentation in patients with walled-off pancreatic necrosis and pancreatic duct disruption

Mateusz Jagielski, Marian Smoczyński, Krystian Adrych

Gastroenterology Rev 2018; 13 (2): 157–159
Online publish date: 2018/04/20
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We published our article in the November-December 2017 issue of “Digestive Endoscopy” [1]. In it we presented the results of treatment of a rare complication of pancreatic endotherapy in the form of intraductal stent fragmentation in 33 patients with chronic pancreatitis [1]. We demonstrated that most of the broken pancreatic stent fragments can be removed endoscopically from the pancreatic duct with an acceptable complication rate [1]. Furthermore, intraductal pancreatic stent fragmentation was discovered significantly more often in patients with chronic calcific pancreatitis and in patients with pancreatic stones inside the main pancreatic duct [1]. Nevertheless, we would like to focus attention on the 4/33 (12.12%) patients from our study who had a diagnosis of non-calcific type of chronic pancreatitis (Figure 1) [1]. Pancreatic duct disruption was an indication for endotherapy in each of the 4 patients [1]. We find it difficult to explain the possible cause of pancreatic stent fragmentation in this group.
Recently in our medical center we completed a retrospective analysis of 451 procedures of endoscopic retrograde pancreatography (ERP) with stenting of the main pancreatic duct. The procedures were carried out between 2001 and 2016 in 166 patients (122 men, 44 women, mean age: 52.96 ±13.27; range: 26–86) with walled-off pancreatic necrosis and pancreatic duct disruption. What is interesting, intraductal pancreatic stent fragmentation was recognized during 2/451 (0.44%) endoscopic procedures in 2/166 (1.2%) patients only (Figure 2). In these 2 patients the fragments of broken pancreatic stents were removed with rat­tooth forceps.
The mentioned outcomes confirm that intraductal pancreatic stent fragmentation is in fact an extremely rare complication of pancreatic endotherapy. In this short article we aim to be sensitive to the fact that a broken pancreatic stent may also occur in patients undergoing endoscopic treatment of main pancreatic duct disruption, regardless of the diagnosis of chronic pancreatitis. We agree with the majority of authors [2–4] that endoscopic procedures should be attempted at centers experienced in retrieval of broken pancreatic stents, despite the lack of guidelines for treatment of intraductal pancreatic stent fragmentation. We have developed in our medical center the strategy of endoscopic treatment of intraductal pancreatic stent fragmentation [1], which we also use in the patients with a proximally...


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references:
Jagielski M, Smoczyński M, Jabłońska A, Adrych K. Endoscopic treatment of intraductal pancreatic stent fragmentation. Dig Endosc 2017; 29: 798-805.
Johanson JF, Schmalz MJ, Geenen JE. Incidence and risk factors for biliary and pancreatic stent migration. Gastrointest Endosc 1992; 38: 341­6.
Kawaguchi Y, Lin JC, Kawashima Y, et al. Risk factors for migration, fracture, and dislocation of pancreatic stents. Gastroenterol Res Pract 2015; 2015: 365457.
Matsumoto K, Katanuma A, Maguchi H. Endoscopic removal technique of migrated pancreatic plastic stents. J Hepatobiliary Pancreat Sci 2014; 21: E34-40.
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