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The impact of prophylactic pancreatic stenting on post-ERCP pancreatitis: A nationwide, register-based study
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DOI：10.1177/2050640616645434.png)
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Abstract
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Background and objectives The role of prophylactic pancreatic stenting (PS) in preventing post-endoscopic retrograde cholangio-pancreatography (ERCP) pancreatitis (PEP) has yet to be determined. Most previous studies show beneficial effects in reducing PEP when prophylactic pancreatic stents are used, especially in high-risk ERCP procedures. The present study aimed to address the use of PS in a nationwide register-based study in which the primary outcome was the prophylactic effect of PS in reducing PEP. Methods All ERCP-procedures registered in the nationwide Swedish Registry for Gallstone Surgery and ERCP (GallRiks) between 2006 and 2014 were studied. The primary outcome was PEP but we also studied other peri- and postoperative complication rates. Results Data from 43,595 ERCP procedures were analyzed. In the subgroup of patients who received PS with a total diameter <= 5 Fr, the risk of PEP increased nearly four times compared to those who received PS with a total diameter of >5 Fr (OR 3.58; 95% CI 1.40-11.07). Furthermore, patients who received PS of >5 Fr and >5 cm had a significantly lower pancreatitis frequency compared to those with shorter stents of the same diameter (1.39% vs 15.79%; p = 0.0033). Conclusions PS with a diameter of >5 Fr and a length of >5 cm seems to have a better protective effect against PEP, compared to shorter and thinner stents. However, in the present version of GallRiks it is not possible to differentiate the exact type of pancreatic stent (apart from material, length and diameter) that has been introduced, so our conclusion must be interpreted with caution.
Keywords:
ERCP
pancreatic stents
pancreatitis
complication rates
prophylaxis
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