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Percutaneous stent-in-stent placement with large cell-type stents for malignant hilar biliary obstruction.

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Alternative Title
Percutaneous stent-in-stent placement with large cell-type stents for malignant hilar biliary obstruction.
Abstract
Background: To overcome the technical difficulty of bilateral stent-in-stent placement, large cell-type biliary stents have been developed. However, most of the studies using large cell-type stents were conducted with endoscopic method.

Purpose: To evaluate the efficacy and safety of percutaneous stent placement with a stent-in-stent method using large cell-type stents in patients with malignant hilar biliary obstruction.

Material and methods: From December 2015 and October 2018, 51 patients with malignant hilar biliary obstruction were retrospectively studied. All of the patients underwent bilateral (n=46) or unilateral (n=5) stenting in a T, Y, or X configuration with a stent-in-stent method using large cell-type stents. Technical success, complications, successful internal drainage, stent patency, and patient survival were analyzed.

Results: A total of 118 stents were successfully placed in 51 patients (100.0%). Three patients had minor complications with self-limiting hemobilia. Major complications were not observed in any patient. Successful internal drainage was achieved in 45 patients (88.2%). Clinical follow-up information until death or the end of the study was available for 50 of 51 patients. The median patient survival was 285.5 days (95% confidence interval [CI] 197-374). Stent dysfunction occurred in 16 patients (35.6%) due to tumor ingrowth (n=9) or tumor ingrowth combined with biliary sludge (n=7) among the patients who achieved successful internal drainage. Median stent patency was 179 days (95% CI 104-271).

Conclusion: Percutaneous stent-in-stent placement with large cell-type stents is technically feasible and safe, and can be an effective technique in patients with malignant hilar biliary obstruction.
Author(s)
고기영권동일김건하김종우김진형성규보윤현기추희호
Issued Date
2021
Type
Article
Keyword
Malignant biliary obstructionpercutaneous biliary stentstent-in-stent
DOI
10.1177/0284185120978512
URI
https://oak.ulsan.ac.kr/handle/2021.oak/8368
https://ulsan-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=TN_cdi_proquest_miscellaneous_2470035552&context=PC&vid=ULSAN&lang=ko_KR&search_scope=default_scope&adaptor=primo_central_multiple_fe&tab=default_tab&query=any,contains,Percutaneous%20stent-in-stent%20placement%20with%20large%20cell-type%20stents%20for%20malignant%20hilar%20biliary%20obstruction.&offset=0&pcAvailability=true
Publisher
ACTA RADIOLOGICA
Location
노르웨이
Language
한국어
ISSN
0284-1851
Citation Volume
62
Citation Number
12
Citation Start Page
1625
Citation End Page
1631
Appears in Collections:
Medicine > Medicine
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