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DOI: 10.1055/s-2007-966833
© Georg Thieme Verlag KG Stuttgart · New York
Biliary stenting and successful intentional stent retrieval after 6 months in a benign stricture following hepaticojejunostomy
Publikationsverlauf
Publikationsdatum:
08. Januar 2008 (online)
The management of benign biliary strictures remains a challenge for interventional endoscopists. Surgery, still the mainstay of treatment, is associated with nonnegligible morbidity and mortality. Recently, new techniques and devices for endoscopic therapy have become available [1] [2].
A 45-year-old woman was referred to our clinic because of recurrent fever of unknown origin. She had a history of hepaticojejunostomy due to bile duct injury following laparoscopic cholecystectomy. Ultrasound, laboratory, and MRI studies led to the discovery of a circular stenosis of the anastomosis ([Fig. 1]). Biopsies ruled out a malignant stenosis. Percutaneous transhepatic cholangiography (PTC) showed a filiform and complex stenosis. Multiple unsuccessful balloon dilatations were carried out and a temporary Yamakawa drain was placed. PTC after removal of the drain showed a residual stenosis of more than 50 %. Hence percutaneous transhepatic cholangiographic drainage with stenting was considered. In order to allow the stent to be withdrawn 6 months later, a polytetrafluoroethylene (ePTFE)-covered stent (Viabil; Gore, Flagstaff, AZ, USA) was chosen. The patient was asymptomatic during the following 6 months. The stent was removed percutaneously through a 12 F introduction sheath with an endoscopic grasping forceps ([Fig. 2], [3], [Video 1]). The patient was discharged 3 days after stent removal.
Fig. 1 Magnetic resonance cholangiopancreatography T2-sequence showing stenosis of the anastomosis after hepaticojejunostomy.
Fig. 2 Sequence of stent extraction through a 12 F introduction sheath using an endoscopic grasping forceps.
Fig. 3 Stent and introduction sheath after removal.
Qualität:
Percutaneous treatment of benign biliary stenosis is still a challenging issue for endoscopists. Poor long-term patency of metallic stents in the biliary system and the near-impossibility of removing them limits their range of use in benign stenoses [1] [3]. Because of its exoskeleton structure ([Fig. 4]), the Viabil stent is able to collapse during withdrawal and seems a feasible option when balloon dilatation of a benign stricture is not sufficient [1]. Coated stents have proven good long-term patency in malignant stenoses and carry a low risk of tissue ingrowth and sludge accumulation [1] [4] [5]. This supports the feasibility of intentional retrieval and allows the endoscopist greater latitude when extended time periods of stent placement are necessary [1].
Fig. 4 Viabil stent and its exoskeleton structure.
Endoscopy_UCTN_Code_TTT_1AR_2AZ
Endoscopy_UCTN_Code_TTT_1AR_2AJ
References
- 1 Kuo M D, Lopresti D C, Gover D D. et al . Intentional retrieval of viabil stent-grafts from the biliary system. J Vasc Interv Radiol. 2006; 17 389-397
- 2 Born P, Rosch T, Bruhl K. et al . Long-term results of endoscopic and percutaneous transhepatic treatment of benign biliary strictures. Endoscopy. 1999; 31 725-731
- 3 Wadhwa R P, Kozarek R A, France R E. et al . Use of self-expandable metallic stents in benign GI diseases. Gastrointest Endosc. 2003; 58 207-212
- 4 Soderlund C, Linder S. Covered metal versus plastic stents for malignant common bile duct stenosis: a prospective, randomized, controlled trial. Gastrointest Endosc. 2006; 63 986-995
- 5 Leung J, Rahim N. The role of covered self-expandable metallic stents in malignant biliary strictures. Gastrointest Endosc. 2006; 63 1001-1003
K. Caca, MD
Medizinische Klinik I
Klinikum Ludwigsburg
Ludwigsburg
Germany
eMail: karel.caca@kliniken-lb.de