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Completed

NCT Number: NCT00487201

Endoscopic Treatment of Biliary Strictures After LTX: Balloon Dilatation Versus Stent Placement

Background and Study Aims: Biliary strictures are a major cause of morbidity following liver transplantation with an overall incidence between 10 and 30 %. Up to now biliary strictures were dilated subsequently one to three plastic stents with a diameter of eight to ten F were inserted. In general, stents were exchanged in two to three months intervals over one year. In the present prospective controlled study, efficacy and complication rates of balloon dilation have been compared with dilation plus stenting.

Patients and Methods: XY patients with high-grade biliary strictures (anastomotic and non-anastomotic) were enrolled in this prospective study in random order. X patients were treated by endoscopic balloon dilatation and Y by balloon dilatation plus plastic stent placement in six to eight weeks intervals. The primary end point was permanent opening of the biliary obstruction of 12 months. Number of endoscopic interventions and complications of the procedures were monitored.

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Key information

Conditions

Biliary Obstruction Biliary Stenosis Biliary Stricture

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Uniklinikum Heidelberg, Heidelberg, Baden-Wurttemberg, Germany

Loading trial locations.

About this study

Endoscopic treatment was performed by experienced endoscopists who had each performed more than 1000 ERCP procedures. The procedure was performed with the patient under general anesthesia with propofol. A stenosis was considered to be present if the cholangiogram showed strictures with a narrowing of the anastomosis or the proximal donor duct site of the anastomosis and incomplete distal runoff of the contrast agent.

The patients were divided into two groups: 1) balloon dilatation of the stricture, 2) balloon dilatation plus plastic stent placement.

In both groups, endoscopic treatment of the patients comprised sphincterotomy, consecutive dilation of stenosis up to 10 F, removement of occluding material from choledochus duct using a balloon catheter if necessary, and repetitive balloon dilatation of the anastomosis stricture or of the non-anastomotic proximal donor duct stricture to 18 F at the first intervention and to 24 F in the following interventions.

The second group of the patients were additionally treated by large-diameter (10 F) plastic stent placement after balloon dilatation. This procedure was repeated in 6 - 8 weeks intervals in both groups.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • liver transplanted patients with diagnosis of biliary obstruction based on endoscopic cholangiopancreaticography older than 18 years male and female

Exclusion criteria

  • patients with multiple organ transplantation

Treatment and study plan

endoscopic balloon dilatation

Procedure

plastic stent placement

Procedure

Primary outcomes

  1. Permanent opening of the biliary obstruction.

    Time frame: 12 months

Secondary outcomes

  1. number of endoscopic interventions and complications of the procedures

    Time frame: 12 months

Sponsors and collaborators

Lead sponsor

University of Ulm

Other

Registry information

Important dates

Study start
2006
Study completion
2007
First posted
Jun 15, 2007
Registry last updated
Jun 18, 2007

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

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This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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