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Published on: March 25, 2022
Metallic stents in benign biliary strictures: three-year follow-up
F Maccioni1, M Rossi, F M Salvatori
14a Cattedra di Radiologia, Università La Sapienza, Rome, Italy.
Cardiovascular and Interventional Radiology
|November 1, 1992
Summary
Metallic stents offer a satisfactory long-term solution for recurrent benign biliary strictures (BBS) when other treatments fail. Despite challenges like tissue ingrowth, they maintain bile flow in selected patients.
Area of Science:
- Gastroenterology
- Interventional Radiology
Background:
- Recurrent benign biliary strictures (BBS) pose a significant clinical challenge.
- Patients often fail to respond to conventional treatments like percutaneous balloon dilatation.
- Surgical intervention may not be an option for many patients with recurrent BBS.
Purpose of the Study:
- To evaluate the long-term efficacy and patency of metallic stents in patients with recurrent benign biliary strictures.
- To identify factors influencing stent patency and patient outcomes.
Main Methods:
- A cohort of 18 patients with recurrent BBS, unresponsive to balloon dilatation, were treated with metallic stents ('Z' stents or Wallstent).
- Patients were followed for an average of 37 months (range 30-41 months).
- Outcomes assessed included symptom recurrence, need for re-intervention, and overall survival.
Main Results:
- At 3-year follow-up, 55.5% of patients were asymptomatic.
- 27.7% experienced symptom recurrence requiring re-treatment.
- The overall 3-year patency rate was 68.7%, with tissue ingrowth being a primary cause of recurrence.
Conclusions:
- Metallic stents provide satisfactory long-term results for selected patients with recurrent benign biliary strictures.
- Reactive tissue ingrowth is a key factor affecting long-term patency.
- Metallic stents represent a viable treatment option for maintaining bile flow when other therapies are exhausted.
