Comparison of Biliary Forceps Biopsy and Brush Cytology

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

43 participants

Study Classification

INTERVENTIONAL

Study Start Date

2006-01-31

Study Completion Date

2009-07-31

Brief Summary

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Cholangiocarcinomas (CCCs) are malignant tumors arising from the biliary epithelium. CCCs are characterised by a high mortality and the only curable therapy is complete tumor resection, if feasible, or in some cases liver transplantation. Since surgery for CCC is a procedure associated with a high mortality itself it needs to be ascertained that an accurate preoperative diagnosis has been established. However, it often appears to be difficult to get a preoperative pathological diagnosis, since it is difficult to obtain tumor specimens using cytologic brushings, biopsy forceps, bile aspiration or endoscopic ultrasonography guided-fine needle aspiration. This is reflected by a nearly 100% specificity but low sensitivity rates.

The aim of this study is to compare a new method of biliary biopsy using a double-balloon enteroscopy (DBE) forceps to enable a safe and reliable tissue specimen collection within the proximal biliary tract with cytology brushings in patients with suspected malignant proximal biliary strictures.

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Detailed Description

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Conditions

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Cholangiocarcinoma

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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Malignant biliary disease

Group Type EXPERIMENTAL

double-balloon enteroscopy forceps biopsy

Intervention Type DEVICE

An endoscopic retrograde cholangiography (ERC) with a duodenoscope Olympus TFJ 160-R (Olympus Corp., Tokyo, Japan) and endoscopic sphincterotomy with an Olympus papillotome (Olympus) is performed under analgosedation . Then, the cannulation of the bile duct is performed by a pusher using a guidewire/guiding catheter. Subsequently, 2 histology samples are taken via a double-balloon enteroscopy (DBE) forceps (BF1725DF, Fujinon GmbH, Willich, Germany), which is placed under the guidance of the pusher.

Transpapillary brush cytology

Intervention Type DEVICE

An endoscopic retrograde cholangiography (ERC) with a duodenoscope Olympus TFJ 160-R (Olympus Corp., Tokyo, Japan) and endoscopic sphincterotomy with an Olympus papillotome (Olympus) is performed under analgosedation . The region of interest is then brushed five times in both directions to obtain cytology specimen.

Benign biliary disease

Group Type EXPERIMENTAL

double-balloon enteroscopy forceps biopsy

Intervention Type DEVICE

An endoscopic retrograde cholangiography (ERC) with a duodenoscope Olympus TFJ 160-R (Olympus Corp., Tokyo, Japan) and endoscopic sphincterotomy with an Olympus papillotome (Olympus) is performed under analgosedation . Then, the cannulation of the bile duct is performed by a pusher using a guidewire/guiding catheter. Subsequently, 2 histology samples are taken via a double-balloon enteroscopy (DBE) forceps (BF1725DF, Fujinon GmbH, Willich, Germany), which is placed under the guidance of the pusher.

Transpapillary brush cytology

Intervention Type DEVICE

An endoscopic retrograde cholangiography (ERC) with a duodenoscope Olympus TFJ 160-R (Olympus Corp., Tokyo, Japan) and endoscopic sphincterotomy with an Olympus papillotome (Olympus) is performed under analgosedation . The region of interest is then brushed five times in both directions to obtain cytology specimen.

Interventions

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double-balloon enteroscopy forceps biopsy

An endoscopic retrograde cholangiography (ERC) with a duodenoscope Olympus TFJ 160-R (Olympus Corp., Tokyo, Japan) and endoscopic sphincterotomy with an Olympus papillotome (Olympus) is performed under analgosedation . Then, the cannulation of the bile duct is performed by a pusher using a guidewire/guiding catheter. Subsequently, 2 histology samples are taken via a double-balloon enteroscopy (DBE) forceps (BF1725DF, Fujinon GmbH, Willich, Germany), which is placed under the guidance of the pusher.

Intervention Type DEVICE

Transpapillary brush cytology

An endoscopic retrograde cholangiography (ERC) with a duodenoscope Olympus TFJ 160-R (Olympus Corp., Tokyo, Japan) and endoscopic sphincterotomy with an Olympus papillotome (Olympus) is performed under analgosedation . The region of interest is then brushed five times in both directions to obtain cytology specimen.

Intervention Type DEVICE