title: Utility of placement of pancreatic duct spontaneous dislodgement stent for prevention of post-ERCP pancreatitis in patients with difficulty in selective biliary cannulation.
abstract: OBJECTIVE
  To examine the utility of placement of pancreatic duct spontaneous dislodgement stents for prevention of post-ERCP pancreatitis in patients with difficulty in selective biliary cannulation.
  
  
  METHODS
  The incidence of pancreatitis was compared between the group with P(+) pancreatic duct spontaneous dislodgement stent placed for prevention of post-ERCP pancreatitis and the group without P(-) in patients with difficulty in selective biliary cannulation.
  
  
  RESULTS
  The final success rate of selective biliary cannulation was 94.45%. Post-ERCP pancreatitis was observed at 7.07%. The success rate of placement of pancreatic duct stent in the P(+) group was 99.0%. The incidence of pancreatitis in 99 patients in the P(+) group was 3.0%, that of abdominal pain was 3.0%, that of hyperamylasemia was 16.2%, and the mean post-ERCP amylase level was 353.031 +/- 520.792 IU/L. The incidence of pancreatitis in the P(-) group was 11.1%, that of abdominal pain was 20.2%, that of hyperamylasemia was 33.3%, and the mean post-ERCP amylase level was 541.204 +/- 771.843 IU/L. Comparing between the P(+) group and P(-) group, the incidence of pancreatitis, that of abdominal pain, that of hyperamylasemia and the mean post-ERCP amylase level were significantly decreased in the P(+) group (p<0.05).
  
  
  CONCLUSIONS
  Placement of pancreatic duct spontaneous dislodgement stent in patients with difficulty in selective biliary cannulation could be useful for prevention of post-ERCP pancreatitis.
authors.affiliation: Department of Medicine and Clinical Oncology, Graduate School of Medicine, Chiba University, Japan. sakai4754@yahoo.co.jp
authors.forename: Yuji
authors.initials: Y
authors.lastname: Sakai
authors.forename: Toshio
authors.initials: T
authors.lastname: Tsuyuguchi
authors.forename: Rintaro
authors.initials: R
authors.lastname: Mikata
authors.forename: Katsunobu
authors.initials: K
authors.lastname: Tawada
authors.forename: Motohisa
authors.initials: M
authors.lastname: Tada
authors.forename: Seiko
authors.initials: S
authors.lastname: Togo
authors.forename: Ryo
authors.initials: R
authors.lastname: Tamura
authors.forename: Masayoshi
authors.initials: M
authors.lastname: Saito
authors.forename: Jo
authors.initials: J
authors.lastname: Kurosawa
authors.forename: Takeshi
authors.initials: T
authors.lastname: Ishihara
authors.forename: Osamu
authors.initials: O
authors.lastname: Yokosuka
mesh_terms: D000368:Aged; D002404:Catheterization / Q000009:adverse effects*; D002760:Cholangiopancreatography, Endoscopic Retrograde / Q000009:adverse effects*; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D010183:Pancreatic Ducts; D010195:Pancreatitis / Q000453:epidemiology / Q000517:prevention & control*; D015607:Stents