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Risk factors for migration, fracture, and dislocation of pancreatic stents.

Kawaguchi Y, Lin JC, Kawashima Y, Maruno A, Ito H, Ogawa M, Mine T - Gastroenterol Res Pract (2015)

Bottom Line: Stent retrieval was successful in all cases of migration.In cases of fractured stents, retrieval was successful in 2 of 4 cases.Conclusion.

View Article: PubMed Central - PubMed

Affiliation: Department of Gastroenterology, Tokai University School of Medicine, Isehara 259-1193, Japan.

ABSTRACT
Aim. To analyze the risk factors for pancreatic stent migration, dislocation, and fracture in chronic pancreatitis patients with pancreatic strictures. Materials and Methods. Endoscopic stent placements (total 386 times) were performed in 99 chronic pancreatitis patients with pancreatic duct stenosis at our institution between April 2006 and June 2014. We retrospectively examined the frequency of stent migration, dislocation, and fracture and analyzed the patient factors and stent factors. We also investigated the retrieval methods for migrated and fractured stents and their success rates. Results. The frequencies of stent migration, dislocation, and fracture were 1.5% (5/396), 0.8% (3/396), and 1.2% (4/396), respectively. No significant differences in the rates of migration, dislocation, or fracture were noted on the patient factors (etiology, cases undergoing endoscopic pancreatic sphincterotomy, location of pancreatic duct stenosis, existence of pancreatic stone, and approach from the main or minor papilla) and stent factors (duration of stent placement, numbers of stent placements, stent shape, diameter, and length). Stent retrieval was successful in all cases of migration. In cases of fractured stents, retrieval was successful in 2 of 4 cases. Conclusion. Stent migration, fracture, and dislocation are relatively rare, but possible complications. A good understanding of retrieval techniques is necessary.

No MeSH data available.


Related in: MedlinePlus

This retrieval technique is a method carried out by connecting the distal end of the migrated stent to a stent retriever using a guide wire passed through the lumen of the migrated stent.
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Related In: Results  -  Collection


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fig2: This retrieval technique is a method carried out by connecting the distal end of the migrated stent to a stent retriever using a guide wire passed through the lumen of the migrated stent.

Mentions: The grasping technique was used in 2 of 5 (40%) cases of stent migration (Table 5). This is a retrieval technique that directly grasps the distal end of the stent using a basket, snare, rat-toothed forceps, or biopsy forceps (Figure 1). The cannulation technique was used in 3 of 5 (60%) cases of stent migration (Table 10). This retrieval technique is carried out by connecting the distal end of the stent to a stent retriever, balloon catheter, or a cannula using a guide wire passed through the lumen of the migrated stent (Figure 2). Stent retrieval was successful in all cases of migration (Table 5). In cases of fractured stents, retrieval was successful in 2 of 4 cases (Table 10). The grasping technique, using a snare, was used in both of these cases. The stent was not retrieved in the other 2 cases. In 1 case we inserted another stent, and in the other case we continued follow-up without the insertion of further stents.


Risk factors for migration, fracture, and dislocation of pancreatic stents.

Kawaguchi Y, Lin JC, Kawashima Y, Maruno A, Ito H, Ogawa M, Mine T - Gastroenterol Res Pract (2015)

This retrieval technique is a method carried out by connecting the distal end of the migrated stent to a stent retriever using a guide wire passed through the lumen of the migrated stent.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4402177&req=5

fig2: This retrieval technique is a method carried out by connecting the distal end of the migrated stent to a stent retriever using a guide wire passed through the lumen of the migrated stent.
Mentions: The grasping technique was used in 2 of 5 (40%) cases of stent migration (Table 5). This is a retrieval technique that directly grasps the distal end of the stent using a basket, snare, rat-toothed forceps, or biopsy forceps (Figure 1). The cannulation technique was used in 3 of 5 (60%) cases of stent migration (Table 10). This retrieval technique is carried out by connecting the distal end of the stent to a stent retriever, balloon catheter, or a cannula using a guide wire passed through the lumen of the migrated stent (Figure 2). Stent retrieval was successful in all cases of migration (Table 5). In cases of fractured stents, retrieval was successful in 2 of 4 cases (Table 10). The grasping technique, using a snare, was used in both of these cases. The stent was not retrieved in the other 2 cases. In 1 case we inserted another stent, and in the other case we continued follow-up without the insertion of further stents.

Bottom Line: Stent retrieval was successful in all cases of migration.In cases of fractured stents, retrieval was successful in 2 of 4 cases.Conclusion.

View Article: PubMed Central - PubMed

Affiliation: Department of Gastroenterology, Tokai University School of Medicine, Isehara 259-1193, Japan.

ABSTRACT
Aim. To analyze the risk factors for pancreatic stent migration, dislocation, and fracture in chronic pancreatitis patients with pancreatic strictures. Materials and Methods. Endoscopic stent placements (total 386 times) were performed in 99 chronic pancreatitis patients with pancreatic duct stenosis at our institution between April 2006 and June 2014. We retrospectively examined the frequency of stent migration, dislocation, and fracture and analyzed the patient factors and stent factors. We also investigated the retrieval methods for migrated and fractured stents and their success rates. Results. The frequencies of stent migration, dislocation, and fracture were 1.5% (5/396), 0.8% (3/396), and 1.2% (4/396), respectively. No significant differences in the rates of migration, dislocation, or fracture were noted on the patient factors (etiology, cases undergoing endoscopic pancreatic sphincterotomy, location of pancreatic duct stenosis, existence of pancreatic stone, and approach from the main or minor papilla) and stent factors (duration of stent placement, numbers of stent placements, stent shape, diameter, and length). Stent retrieval was successful in all cases of migration. In cases of fractured stents, retrieval was successful in 2 of 4 cases. Conclusion. Stent migration, fracture, and dislocation are relatively rare, but possible complications. A good understanding of retrieval techniques is necessary.

No MeSH data available.


Related in: MedlinePlus