Digestive Diseases and Sciences

, Volume 59, Issue 9, pp 2308–2313 | Cite as

The Use of Double Lasso, Fully Covered Self-Expandable Metal Stents with New “Anchoring Flap” System in the Treatment of Benign Biliary Diseases

  • B. Mangiavillano
  • G. Manes
  • T. H. Baron
  • R. Frego
  • M. Dinelli
  • F. Radaelli
  • V. Teruzzi
  • A. Amato
  • S. Pallotta
  • T. Santoro
  • E. Masci
Original Article



Many benign biliary diseases (BBD) can be treated with fully covered, self-expandable metal stents (FCSEMS) but stent migration occurs in up to 35.7 %. The aim of this study was to prospectively assess the rate of, safety and effectiveness and stent migration of a new biliary FCSEMS with an anti-migration flap (FCSEMS-AF) in patients with BBD.

Patients and Methods

This was a prospective study from four Italian referral endoscopy centers of 32 consecutive patients (10 females and 22 males; mean age: 60.1 ± 14.8 years; range: 32–84 years) with BBD who were offered endoscopic placement of a FCSEMS-AF as first-line therapy.


Were 24 strictures and 8 leaks. Stent placement was technically successful in 32/32 patients (100 %). Immediate clinical improvement was seen in all 32 patients (100 %). One late stent migration occurred (3.3 %). FCSEMS-AF were removed from 30 of the 32 patients (93.7 %) at a mean (±SD) of 124.4 ± 84.2 days (range: 10–386 days) after placement. All patients remained clinically and biochemically well at 1- and 3-month follow-up. One patient (3.3 %) with a post-laparoscopic cholecystectomy stricture developed distal stent migration at 125 days.


This new FCSEMS with anti-migration flap seems to be a safe and effective first-line treatment option for patients with BBD.


Fully covered metal stent Benign biliary diseases Biliary tract injuries Biliary leak Biliary stenosis Biliary strictures 


Conflict of interest



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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • B. Mangiavillano
    • 1
  • G. Manes
    • 2
  • T. H. Baron
    • 3
  • R. Frego
    • 4
  • M. Dinelli
    • 4
  • F. Radaelli
    • 5
  • V. Teruzzi
    • 5
  • A. Amato
    • 5
  • S. Pallotta
    • 2
  • T. Santoro
    • 1
  • E. Masci
    • 1
  1. 1.Gastrointestinal Endoscopy, Azienda Ospedaliera San Paolo, Universitary HospitalUniversity of MilanMilanItaly
  2. 2.Digestive EndoscopySacco HospitalMilanItaly
  3. 3.Gastrointestinal EndosocpyNorth Carolina HospitalDurhamUSA
  4. 4.Endoscopy UnitSan Gerardo HospitalMonzaItaly
  5. 5.Digestive EndoscopyValduce HospitalComoItaly

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