Study of Endoscopic Sphincterotomy With Needle Knife Papillotome in Patients of Ampullary Impacted Stone

This study has been completed.
Information provided by:
National Taiwan University Hospital Identifier:
First received: September 12, 2005
Last updated: NA
Last verified: August 2005
History: No changes posted
Using a needle knife papillotome by an experienced endoscopist, endoscopic sphincterotomies were performed in difficult cannulation cases. In a prospectively collected database, we investigate the complications of those with ampullary impacted stone.


Study Type: Observational
Study Design: Observational Model: Defined Population
Primary Purpose: Screening
Time Perspective: Cross-Sectional

Resource links provided by NLM:

Further study details as provided by National Taiwan University Hospital:

Estimated Enrollment: 20
Study Start Date: January 2003
Estimated Study Completion Date: March 2005
Detailed Description:
The endoscopic sphincterotomy with needle knife papillotome is a well-established advanced endoscopic technique in difficult cannulation cases. Choledocholithiasis impacted at the ampulla of Vater is occasionally seen. Inflammed surrounding mucosa frequently accompanies. Whether sphincterotomy with a needle knife increases the bleeding complications is to be elucidated in this study.

Ages Eligible for Study:   18 Years to 85 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • choledocholithiasis patients and an ampullary impacted stone

Exclusion Criteria:

  • patients with liver cirrhosis , pregnancy, history of abdominal malignancy, bleeding diathesis, ileus, renal failure
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Please refer to this study by its identifier: NCT00173368

Sponsors and Collaborators
National Taiwan University Hospital
Study Chair: Hsiu-Po Wang, MD National Taiwan University Hospital
  More Information

No publications provided Identifier: NCT00173368     History of Changes
Other Study ID Numbers: 9461700651
Study First Received: September 12, 2005
Last Updated: September 12, 2005
Health Authority: Taiwan: Department of Health

Keywords provided by National Taiwan University Hospital:
needle knife

Additional relevant MeSH terms:
Bile Duct Diseases
Biliary Tract Diseases
Common Bile Duct Diseases
Digestive System Diseases processed this record on November 25, 2015