Trial reportIndian journal of gastroenterology : official journal of the Indian Society of Gastroenterology2014
Air cholangiogram is not inferior to dye cholangiogram for malignant hilar biliary obstruction: a randomized study of efficacy and safety.
Trial report in Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.
What it found
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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
8 citing papers in PubMed, 1 synthesis or guideline pooled it, 15 citations in OpenAlex.
- Factors predicting 30-day mortality after ERCP in patients with inoperable malignant hilar biliary obstruction: a single tertiary referral centre experience and systematic review.BMJ open gastroenterology · 2022Pooled it
- Air Cholangiography versus Contrast Cholangiography in Patients with Hilar Biliary Obstruction: A Systematic Review and Meta-Analysis.GE Portuguese journal of gastroenterology · 2025Review
- The updated Asia-Pacific consensus statement on the role of endoscopic management in malignant hilar biliary obstruction.Endoscopy international open · 2024Article
- Long Slimmer Metal Stent Is Feasible and Effective for Endoscopic Dual Stent-by-Stent Placement in Malignant Hilar Biliary Stricture.Digestive diseases and sciences · 2022Article
- Using air cholangiography to reduce postendoscopic retrograde cholangiopancreatography cholangitis in patients with malignant hilar obstruction.Quantitative imaging in medicine and surgery · 2022Article
- Personalized Endoscopy in Complex Malignant Hilar Biliary Strictures.Journal of personalized medicine · 2021Review
- COBMC gastroenterology · 2020Article
- Update on Pancreatobiliary Stents: Stent Placement in Advanced Hilar Tumors.Clinical endoscopy · 2015Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundEndoscopic biliary drainage is the palliative treatment of choice in patients with malignant hilar biliary obstruction. Contrast injection can lead to cholangitis, whereas air cholangiography may have a lesser incidence of cholangitis.
objectiveThe objective of the present study is to prospectively compare the efficacy and safety of air vs. dye cholangiogram in malignant hilar biliary obstruction.
methodsPatients with type II and III malignant hilar biliary stricture were included in a prospectively randomized manner at a tertiary care center. Unilateral self-expanding metal stent was placed in patients with a malignant hilar block using either air or dye as a contrast medium. Outcome measures were successful deployment, successful drainage, early complications, and procedure-related and 30-day mortality.
resultsForty-nine patients were randomized to air cholangiogram (25 patients, group A) or dye cholangiogram (24 patients, group B). Most of the patients had type II stricture (19 in group A and 20 in group B). Successful stenting and drainage were achieved in 25 (100 %) and 24 (96 %) in group A and 23 (95.8 %) and 22 (91.6 %) (p = ns), respectively. Cholangitis developed in 1 (4 %) and 4 (16.6 %) in group A and B, respectively (p < 0.05). There was no procedure-related or 30-day mortality.
conclusionUse of air cholangiography was as safe and as effective as dye cholangiography in patients with malignant hilar biliary obstruction, and it decreased the risk of post-ERCP cholangitis.
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