Endoscopic papillary balloon dilation (EBD) for choledocholithiasis is known to be comparable to endoscopic sphincterotomy (EST) especially in cases of small stones. With larger stones, EBD with conventional balloon, which have a diameter of 6-8 mm, was reported as less effective for extraction of stones. We evaluated the efficacy and complications of EBD with large balloons (10-15 mm) after limited EST for retrieval of choledocholithiasis. From February 2005, we have performed EBD with limited EST for retrieval of common bile duct (CBD) stones. The patients who admitted with hyperamylasemia and gallstone pancreatitis were excluded. In cases without CBD dilation, EPBD with 12 mm for 40 seconds was performed. And in cases with CBD dilation, we dilated the sphincters with 15 mm sized balloon for 40 seconds. Total 22 patients (11 of male) were performed EBD with limited EST for retrieval of CBD stones. The median diameter of the stones was 10 mm (5-25 mm). Ten cases had multiple stones and 6 cases periampullary diverticuli. Successful stone removal in the initial session of ERCP with EBD was accomplished in 16 patients (72.7%). And complete retrieval of bile duct stones was achieved in all patients with repeated ERCP. In the aspect of complications, any episodes of perforation, bleeding was not developed. Only one case of mild grade of post-procedural pancreatitis was noted. However, post-procedural hyperamylasemia was developed in 16 cases (68.2%). EBD with larger balloon seems to be a feasible and safe alternative technique for conventional EST in CBD stone extraction.
Treatment Outcome ; *Sphincterotomy, Endoscopic/adverse effects ; Male ; Humans ; Female ; Choledocholithiasis/surgery/*therapy ; *Balloon Dilatation/adverse effects ; Aged

BACKGROUND/AIMS: The blended current is usually used for endoscopic sphincterotomy (EST) to minimize bleeding. The pure cutting current may induce less edema of the ampulla and therefore result in less injury to the pancreas theoretically. The aim of this study was to evaluate effects of electric currents used on the development of serum pancreatic enzyme evaluation, clinical pancreatitis or bleeding after EST. METHODS: One hundred and eighteen consecutive patients who underwent EST with standard papillotome alone for the treatment of choledocholithiasis were reviewed. All EST had been performed by two endoscopists whose experience on EST was similar: one uses 'blended current' (BC group, n=74), while the other uses 'pure cutting current' (PC group, n=44). RESULTS: Baseline clinical, laboratory, and procedural parameters were similar in both groups. The incidences of hyperamylasemia and hyperlipasemia were similar between two groups. There was no significant difference in the incidence of clinical pancreatitis between two groups (BC 6.8% vs PC 0.0%, p=0.1557). All episodes of pancreatitis were mild. No episodes of significant bleeding occurred after EST. The incidences of sepsis, cholangitis and perforation were also not different between two groups. CONCLUSIONS: Development of complications after standard EST such as hyperamylasemia, clinical pancreatitis, and bleeding may not depend on the electric current used.
Aged ; Choledocholithiasis/surgery ; English Abstract ; Female ; Humans ; Male ; Middle Aged ; Pancreatitis/etiology ; Sphincterotomy, Endoscopic/*adverse effects/methods

Several cases of recurrent stone formation caused by a surgical material as a nidus have been reported. Recently, we experienced one case in which a migrated metal stent might have been served as a nidus for common duct stone formation. The diagnosis was confirmed by ERCP, the stone was successfully removed with endoscopic therapy. Six years ago, she had undergone a lithotripsy using a percutaneous cholangioscopy (PTCS) because of intrahepatic cile duct stoes. Six years later, she developed abdominal pain in the right upper quadrant. ERCP revealed the dilated extrahepatic bile duct and left intrahepatic bile duct and the presence of a large elongated freely mobile filling defaet suggestive of common bile duct stone containing metal mesh in the distal common bile duct. The removed stone with endoscopic sphincterotomy was soft anddark brown in color with metal stent.
Case Report ; Cholangiopancreatography, Endoscopic Retrograde ; Common Bile Duct Calculi/diagnosis/*etiology/surgery ; Female ; Human ; Middle Age ; Recurrence ; Sphincterotomy, Endoscopic ; Stents/*adverse effects

We report a case of tension pneumothorax after an endoscopic sphincterotomy. A 78-yr-old woman presented with progressing dyspnea. She had undergone an endoscopic retrograde cholangiopancreatogram three days before due to acute cholecystitis. She underwent endoscopic sphincterotomy for stone extraction, but the procedure failed. On arrival to our hospital, she complained about severe dyspnea and she had subcutaneous emphysema. A computed tomogram scan revealed severe subcutaneous emphysema, right-side tension pneumothorax, and pneumoretroperitoneum. Contrast media injected through a transnasal biliary drainage catheter spilled from the second portion of the duodenum. A second abdominal computed tomogram showed multiple air densities in the retroperitoneum and peritoneal cavity, which were consistent with panperitonitis. We recommended an emergent laparotomic exploration, but the patient's guardians refused. She died eventually due to septic shock. Endoscopic retrograde cholangiopancreatogram is a popular procedure for biliary and pancreatic diseases, but it can cause severe complications such as intestinal perforation. Besides perforations, air can spread through the abdominal cavity, retroperitoneum, mediastinum, and the neck soft tissue, eventually causing pneumothorax. Early recognition and appropriate management is crucial to an optimal output of gastrointestinal perforation and pneumothorax.
Acute Disease ; Aged ; Cholangiopancreatography, Endoscopic Retrograde/*adverse effects ; Cholecystitis/diagnosis ; Female ; Humans ; Intestinal Perforation/etiology ; Pneumothorax/*diagnosis/etiology ; Retropneumoperitoneum/*diagnosis/etiology ; Sphincterotomy, Endoscopic ; Tomography, X-Ray Computed

BACKGROUND/AIMS: Several precut techniques have been used to gain biliary access for difficult cases. The aim of this study was to evaluate the success and complication rates of two precut techniques, transpancreatic septotomy (TPS) and needle knife infundibulotomy (NKI), in difficult biliary cannulation due to the presence of unintended pancreatic cannulation. METHODS: Eighty-six patients who failed standard biliary cannulation were included. TPS was performed when we failed to achieve biliary access despite 5 minutes of attempted cannulation or when more than three attempted unintended pancreatic cannulations occurred. If deep cannulation was not achieved within 5 minutes for any duct, NKI was performed. If this failed, we crossed over to the other technique in the second attempt. RESULTS: The initial total success rate of biliary cannulation was 88.4% (86.6% for the TPS group and 94.7% for the NKI group, p=0.447). After crossover of the techniques, the final success rate was 95.3%. The complication rate was 20.9% in patients with TPS and 15.8% in patients with NKI (p=0.753). CONCLUSIONS: The use of different strategies based on the presence of unintended pancreatic cannulation may help increase the success rate for difficult biliary cannulation without increasing complication rates.
Aged ; Bile Ducts/surgery ; Biliary Tract Diseases/*surgery ; Catheterization/adverse effects/instrumentation/*methods ; Cholangiopancreatography, Endoscopic Retrograde/adverse effects/*methods ; Female ; Humans ; Male ; Middle Aged ; Pancreas/surgery ; Prospective Studies ; Retrospective Studies ; Sphincterotomy, Endoscopic/adverse effects/instrumentation/*methods ; Surgical Instruments ; Treatment Outcome

BACKGROUND/AIMS: The diagnostic and therapeutic utility of endoscopic retrograde cholangiopancreatography (ERCP) has been well demonstrated for biliary and pancreatic diseases. Biliary access can be allowed by infundibulotomy if failed by using the standard cannulation methods. However, no data are available regarding ERCP-related complications in patients taking antiplatelet agents who are undergoing infundibulotomy. Therefore, we aimed to assess the frequency of ERCP-related complications after infundibulotomy in patients taking antiplatelet agents. METHODS: We performed a retrospective study, and enrolled 835 patients who underwent ERCP at Pusan National University Hospital from January 2011 to December 2012. Seventy-two patients had been taking antiplatelet agents prior to the procedure. Patients were classified into two groups according to the utilization of infundibulotomy: 20 patients underwent infundibulotomy (group 1), and 52 patients did not undergo infundibulotomy (group 2). Complications after ERCP were defined as bleeding, post-ERCP pancreatitis, and perforation according to Cotton's criteria. RESULTS: Between group 1 and 2, there were no significant differences in baseline characteristics. ERCP was successfully performed in all cases. Clinically significant bleeding was observed in one patient in group 1 (5%, 1/20) versus none in group 2. Post-ERCP pancreatitis was observed in 2 patients (10.0%, 2/20) in group 1, and 7 patients (13.5%, 7/52) in group 2 (p=0.691). However, none of these differences were statistically significant. No perforation occurred in both groups. CONCLUSIONS: Considering the low incidence of bleeding after infundibulotomy in patients taking antiplatelet agents, infundibulotomy may be safely performed in this group of patients.
Aged ; *Cholangiopancreatography, Endoscopic Retrograde/adverse effects ; Female ; Hemorrhage/etiology ; Humans ; Male ; Middle Aged ; Pancreatitis/etiology ; Pituitary Gland/*surgery ; Platelet Aggregation Inhibitors/administration & dosage/*adverse effects ; Retrospective Studies ; Sphincterotomy, Endoscopic

BACKGROUND/AIMS: Although a few recent studies have reported the effectiveness of endoscopic pancreatic sphincterotomy (EPST), none has compared physicians' skills and complications resulting from the procedure. Thus, we examined the indications, complications, and safety of EPST performed by a single physician at a single center. METHODS: Among 2,313 patients who underwent endoscopic retrograde cholangiopancreatography between January 1996 and March 2008, 46 patients who underwent EPST were included in this retrospective study. We examined the indications, complications, safety, and effectiveness of EPST, as well as the need for a pancreatic drainage procedure and the concomitant application of EPST and endoscopic sphincterotomy (EST). RESULTS: Diagnostic indications for EPST were chronic pancreatitis (26 cases), pancreatic divisum (4 cases), and pancreatic cancer (8 cases). Therapeutic indications for EPST were removal of a pancreaticolith (10 cases), stent insertion for pancreatic duct stenosis (9 cases), nasopancreatic drainage (7 cases), and treatment of sphincter of Oddi dysfunction (1 case). The success rate of EPST was 95.7% (44/46). Acute complications of EPST included five cases (10.9%) of pancreatitis and one of cholangitis (2.2%). EPST with EST did not reduce biliary complications. Endoscopic pancreatic drainage procedures following EPST did not reduce pancreatic complications. CONCLUSIONS: EPST showed a low incidence of complications and a high rate of treatment success; thus, EPST is a relatively safe procedure that can be used to treat pancreatic diseases. Pancreatic drainage procedures and additional EST following EPST did not reduce the incidence of procedure-related complications.
Adult ; Aged ; Bile Ducts/surgery ; Female ; Humans ; Male ; Middle Aged ; Pancreatic Diseases/*surgery ; Pancreatic Ducts/surgery ; Sphincterotomy, Endoscopic/adverse effects/*methods

When access to a major duodenal papilla or endoscopic retrograde cholangiopancreatography has failed, percutaneous transhepatic cholangioscopic lithotripsy (PTCS-L) may be useful for removing common bile duct (CBD) stones. However, the feasibility and usefulness of percutaneous transhepatic papillary large-balloon dilation (PPLBD) during PTCS-L for the removal of large CBD stones has not been established. We aimed to determine the safety and efficacy of PPLBD for the treatment of large CBD stones. Eleven patients with large CBD stones in whom the access to the major papilla or bile duct had failed were enrolled prospectively. Papillary dilation was performed using a large (12-20 mm) dilation balloon catheter via the percutaneous transhepatic route. Post-procedure adverse events and efficacy of the stone retrieval were measured. The initial success rate of PPLBD was 100%. No patient required a basket to remove a stone after PPLBD. Electrohydraulic lithotripsy was required in 2 (18.2%) patients. The median time to complete stone removal after PPLBD was 17.8 min and no adverse events occurred after PPLBD. Asymptomatic hyperamylasemia was not encountered in any patients. This study indicates that PPLBD is safe and effective for removal of large CBD stones.
Ampulla of Vater/surgery ; Bile Ducts/*surgery ; Cholangiopancreatography, Endoscopic Retrograde ; Choledocholithiasis/*surgery ; Feasibility Studies ; Gallstones/surgery ; Humans ; Hyperamylasemia ; Lithotripsy/adverse effects/*methods ; Prospective Studies ; Sphincterotomy, Endoscopic/*methods ; Treatment Outcome ; Urinary Bladder Calculi/*surgery

When access to a major duodenal papilla or endoscopic retrograde cholangiopancreatography has failed, percutaneous transhepatic cholangioscopic lithotripsy (PTCS-L) may be useful for removing common bile duct (CBD) stones. However, the feasibility and usefulness of percutaneous transhepatic papillary large-balloon dilation (PPLBD) during PTCS-L for the removal of large CBD stones has not been established. We aimed to determine the safety and efficacy of PPLBD for the treatment of large CBD stones. Eleven patients with large CBD stones in whom the access to the major papilla or bile duct had failed were enrolled prospectively. Papillary dilation was performed using a large (12-20 mm) dilation balloon catheter via the percutaneous transhepatic route. Post-procedure adverse events and efficacy of the stone retrieval were measured. The initial success rate of PPLBD was 100%. No patient required a basket to remove a stone after PPLBD. Electrohydraulic lithotripsy was required in 2 (18.2%) patients. The median time to complete stone removal after PPLBD was 17.8 min and no adverse events occurred after PPLBD. Asymptomatic hyperamylasemia was not encountered in any patients. This study indicates that PPLBD is safe and effective for removal of large CBD stones.
Ampulla of Vater/surgery ; Bile Ducts/*surgery ; Cholangiopancreatography, Endoscopic Retrograde ; Choledocholithiasis/*surgery ; Feasibility Studies ; Gallstones/surgery ; Humans ; Hyperamylasemia ; Lithotripsy/adverse effects/*methods ; Prospective Studies ; Sphincterotomy, Endoscopic/*methods ; Treatment Outcome ; Urinary Bladder Calculi/*surgery

BACKGROUND/AIMS: Metal stent insertion through percutaneous transhepatic biliary drainage (PTBD) track is an important palliative treatment modality for malignant biliary obstruction. Acute pancreatitis is one of serious complications of biliary metal stenting. The purpose of this study was to investigate the risk of pancreatitis for patients who underwent metal stent insertion via PTBD track. METHODS: A retrospective analysis of 90 consecutive patients who received metal stent insertion via PTBD track from Jan. 2002 to Dec. 2007 was carried out. Patients were devided into the transpapillary and non-transpapillary group, and the risks of pancreatitis were compared. The effects of preliminary endoscopic sphincterectomy (EST) was also investigated in transpapillary group. RESULTS: The rate of pancreatitis was higher in transpapillary group compared to nontranspapillary group (odd ratio 1.87, 95% CI 0.516-6.761), but it showed no stastically significance (p=0.502). In transpapillary group, patients who received preliminary EST showed lower rate of pancreatitis (odd ratio 0.91, 95% CI 0.656-1.273), but it showed no stastically significance (p=0.614). CONCLUSIONS: Metallic stent insertion through the intact sphincter of Oddi might have a risk of developing pancreatitis. Further study is needed to elucidate the mechanism of pancreatitis and the way of prevention.
Aged ; Aged, 80 and over ; Amylases/metabolism ; Cholestasis/diagnosis/*surgery ; Drainage ; Female ; Humans ; Jaundice, Obstructive/diagnosis/*surgery ; Male ; Middle Aged ; Pancreatitis/*etiology ; Retrospective Studies ; Risk Assessment ; Sphincterotomy, Endoscopic ; Stents/*adverse effects