Trial reportGut and liver2013
A novel, fully covered laser-cut nitinol stent with antimigration properties for nonresectable distal malignant biliary obstruction: a multicenter feasibility study.
Trial report in Gut and liver, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
21 citing papers in PubMed, 1 synthesis or guideline pooled it, 44 citations in OpenAlex.
- Comparable Efficacy of Laser-Cut and Braided Self Expanding Metallic Biliary Stent: A Systematic Review and Meta-Analysis.Digestive diseases and sciences · 2023Pooled it
- Comparison of fully covered self-expandable metal biliary stents with or without anchoring double-pigtail plastic stents: a systematic review and meta-analysis.iGIE : innovation, investigation and insights · 2026Review
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- Comparative outcomes of hepaticojejunostomy versus ERCP-Guided metal stenting for malignant distal biliary obstruction: a single-center retrospective study.BMC surgery · 2026Article
- Article
- Article
- Prevention of stent migration of covered self-expandable metal stents in distal malignant biliary obstruction: a review of literature.Gastroenterology report · 2025Review
- Article
- Removal of Duckbill-type laser-cut anti-reflux metal stents: Clinical evaluation and in vitro study.DEN open · 2023Article
- Efficacy and complications of inoperable malignant distal biliary obstruction treatment by metallic stents: fully covered or uncovered?Gastroenterology report · 2023Review
- Angle of covered self-expandable metallic stents after placement is a risk factor for recurrent biliary obstruction.World journal of hepatology · 2022Article
- Laser-cut-type versus braided-type covered self-expandable metallic stents for distal biliary obstruction caused by pancreatic carcinoma: a retrospective comparative cohort study.Clinical endoscopy · 2022Article
- Covered self-expandable metal stents for distal biliary obstruction from pancreatic carcinoma: what type of stent is preferred?Clinical endoscopy · 2022Article
- Malignant biliary obstruction due to metastatic non-hepato-pancreato-biliary cancer.World journal of gastroenterology · 2022Review
- Comparing the 14-mm uncovered and 10-mm covered metal stents in patients with distal biliary obstruction caused by unresectable pancreatic cancer: a multicenter retrospective study.Surgical endoscopy · 2022Article
- Utility and Safety of a Novel Fully Covered Metal Stent in Unresectable Distal Malignant Biliary Obstruction.Digestive diseases and sciences · 2020Article
- Should a fully covered self-expandable biliary metal stent be anchored with a double-pigtail plastic stent? A retrospective study.World journal of gastrointestinal endoscopy · 2019Article
- A Prospective Multicenter Study of a Fully Covered Metal Stent in Patients with Distal Malignant Biliary Obstruction: WATCH-2 Study.Digestive diseases and sciences · 2018Article
- Endoscopic ultrasound-guided biliary drainage using a newly designed metal stent with a thin delivery system: a preclinical study in phantom and porcine models.Journal of medical ultrasonics (2001) · 2018Article
- Understanding the Mechanical forces of Self-Expandable Metal Stents in the Biliary Ducts.Current gastroenterology reports · 2016Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
20 authors at 5 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND/
aimsStent migration occurs frequently, but the prevention of complications resulting from covered self-expandable metal stents (C-SEMSs) remains unresolved. We prospectively assessed a newly developed C-SEMS, a modified covered Zeo stent (m-CZS), in terms of its antimigration effect.
methodsBetween February 2010 and January 2011, an m-CZS was inserted into 42 patients (31 initial drainage cases and 11 reintervention cases) at a tertiary referral center and three affiliated hospitals. The laser-cut stent was flared for 1.5 cm at both ends, with a 1 cm raised bank located 1 cm in from each flared end. The main outcome of this study was the rate of stent migration, and secondary outcomes were the rate of recurrent biliary obstruction (RBO), the time to RBO, the frequencies of complications, and overall survival.
resultsOf the 31 patients with initial drainage, stent migration occurred in four (12.9%, 95% confidence interval, 5.1% to 29.0%), with a mean time of 131 days. RBO occurred in 18 (58%), with a median time to RBO of 107 days. Following previous C-SEMS migration, seven of 10 patients (70%) did not experience m-CZS migration until death.
conclusionsm-CZSs with antimigration properties effectively, although not completely, prevented stent migration after stent insertion.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.