Usefulness of newly modified fully covered metallic stent of 12mm in diameter and anti-migration feature for periampullary malignant biliary strictures: Comparison with conventional standard metal stent
- Abstract
- BACKGROUNDS: Fully covered self-expandable metal stent (FCSEMS) are preferred for distal malignant biliary stricture (MBS). However, stent migration is a major adverse event of FCSEMS, especially for far distal MBS. We evaluated the usefulness of newly modified FCSEMS (M-FCSEMS) having 12mm in diameter and anti-migration feature to minimize stent migration compared with the conventional FCSEMS (C-FCSEMS). METHODS: Total 102 patients were enrolled between January 2015 and September 2017 in this prospective comparative study; 50 were allocated to the M-FCSEMS group and 52 to the C-FCSEMS group. The primary outcome was stent migration, and the secondary outcomes were other adverse events, stent occlusion rate, and stent patency during the follow-up period. RESULTS: The baseline characteristics of the two groups did not significantly differ. Endoscopic stent placement was technically successful in all patients. Stent migration occurred in 8.0% (4/50) of the patients in the M-FCSEMS group and 23.1% (12/52) of those in the C-FCSEMS group (P=0.036). The other adverse events, including stent-related pancreatitis and cholecystitis did not significantly differ between the two groups (P=0.415). Stent occlusion occurred in 23.9% (11/46) of the patients in the M-FCSEMS group and 37.5% (15/40) in the C-FCSEMS group (P=0.171). Stent patency was significantly longer in the M-FCSEMS group than in the C-FCSEMS group (228 vs 157days, P=0.048). CONCLUSIONS: Modified FCSEMS with 12-mm diameter and anti-migration feature significantly decreased the risk of stent migration and had longer patency compared with C-FCSEMS in patients with periampullary MBS.
- All Author(s)
- H. W. Lee
; J. H. Moon
; Y. N. Lee
; T. H. Lee
; M. H. Choi
; S. W. Cha
; Y. D. Cho
; S. H. Park
- Issued Date
- 2019
- Type
- Article
- Keyword
- covered self-expandable metal stent; malignantbiliary stricture; periampullary cancer; stentmigration
- Publisher
- Asian Pacific Association of Gastroenterology
- ISSN
- 0815-9319
; 1440-1746
- Citation Title
- Journal of Gastroenterology and Hepatology
- Citation Volume
- 34
- Citation Number
- 7
- Citation Start Page
- 1208
- Citation End Page
- 1213
- Language(ISO)
- eng
- DOI
- 10.1111/jgh.14602
- URI
- http://schca-ir.schmc.ac.kr/handle/2022.oak/875
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