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Related Experiment Videos

Wallstents for metastatic biliary obstruction

A M van Berkel1, J J Bergman, I Waxman

  • 1Dept. of Gastroenterology, Academic Medical Center, University of Amsterdam, The Netherlands.

Endoscopy
|June 1, 1996
PubMed
Summary
This summary is machine-generated.

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Wallstent patency in patients with metastatic biliary obstruction is comparable to primary tumors. This study found a median patency of 265 days, with obstruction mainly due to tumor ingrowth.

Area of Science:

  • Gastroenterology
  • Oncology
  • Interventional Radiology

Background:

  • Obstructive jaundice due to malignant tumors often requires biliary stenting.
  • Wallstents have demonstrated variable patency, with shorter durations reported in mixed malignant populations.
  • The patency of Wallstents specifically in metastatic biliary obstruction requires further investigation.

Purpose of the Study:

  • To evaluate the patency duration of Wallstents in patients with metastatic common bile duct obstruction.
  • To compare Wallstent patency in metastatic disease with previously reported data for primary pancreaticobiliary malignancies.

Main Methods:

  • Retrospective analysis of 28 patients who received Wallstents for metastatic biliary obstruction (1990-1994).
  • Follow-up involved contacting referring physicians, lasting until November 1994 or patient death.

Related Experiment Videos

  • Stent dysfunction requiring polyethylene stent insertion discontinued follow-up.

    • Main Results:

    • Median Wallstent patency was 265 days (range: 11-519) in 27 patients with available follow-up.
    • Obstruction occurred in 13 patients, leading to cholangitis (7) or jaundice (6).
    • Tumor ingrowth (7) was the primary cause of obstruction, followed by tumor overgrowth (3).

    Conclusions:

    • Wallstent patency in metastatic biliary obstruction is comparable to that in primary pancreaticobiliary malignancies.
    • Tumor ingrowth is a significant factor contributing to Wallstent dysfunction in this patient group.