European Radiology

, Volume 29, Issue 5, pp 2690–2697 | Cite as

Percutaneous treatment of benign bilioenteric anastomotic strictures: temporary covered stent placement versus balloon dilatation

  • Gabin Yun
  • Chang Jin YoonEmail author
  • Nak Jong Seong



To compare percutaneous temporary covered stent placement with balloon dilatation in the treatment of benign stricture of bilioenteric anastomosis.


From November 2004 to August 2017, 56 patients with benign bilioenteric anastomotic strictures underwent percutaneous transhepatic treatment. A temporary covered stent designed for spontaneous migration was placed in 23 patients (stent group). Balloon dilatation was performed in 33 patients (balloon group). The technical success, percutaneous transhepatic biliary drainage (PTBD) indwelling times, stent indwelling times and patency rates were retrospectively compared between the two groups.


Technical success was achieved in all patients in the stent group and in 96.8% (32/33) of patients in the balloon group. All stents spontaneously migrated into the jejunum, and stent indwelling times were 3–9 months (median, 6 months). The PTBD indwelling time was shorter for the stent group than for the balloon group (median, 7 vs. 71 days, p = 0.001). Recurrent strictures occurred more frequently in the balloon group than in the stent group (54.5% vs. 13.0%, p = 0.002; hazard ratio 3.7). The 1- and 3-year primary patency rates were 90.2% and 84.9% for the stent group and 75.1% and 52.8% for the balloon group, respectively (p = 0.04).


Percutaneous temporary covered stenting is an effective treatment in patients with benign bilioenteric anastomotic strictures. It provides longer patency and shorter PTBD indwelling time compared with balloon dilatation.

Key Points

• A temporary covered stent designed for spontaneous migration is a feasible and effective treatment for patients with benign bilioenteric anastomotic strictures.

• Percutaneous temporary covered stents provide longer patency and shorter drainage catheter indwelling time compared with conventional balloon dilatation.

• A covered stent with flared ends spontaneously migrated after 3–9 months.


Bile ducts Constriction, pathologic Stents Dilatation 



Computed tomography


Expanded polytetrafluoroethylene


Magnetic resonance cholangiopancreatography


Percutaneous transhepatic biliary drainage



This work was supported by grant no 14-2014-023 from the SNUBH research fund.

Compliance with ethical standards


The scientific guarantor of this publication is Chang Jin Yoon.

Conflict of interest

The authors declare that they have no conflict of interest.

Statistics and biometry

No complex statistical methods were necessary for this paper.

Informed consent

Written informed consent was waived by the Institutional Review Board.

Ethical approval

Institutional Review Board approval was obtained.


• Retrospective

• Experimental study

• Performed at one institution


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Copyright information

© European Society of Radiology 2018

Authors and Affiliations

  1. 1.Department of Radiology, Seoul National University College of MedicineSeoul National University Bundang HospitalSeongnam-siSouth Korea

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