Evidence map›Paper›PMID 28428652›Full record

ArticleRadiologia brasileira

Percutaneous stent placement for the treatment of malignant biliary obstruction: nitinol versus elgiloy stents.

Charles Edouard Zurstrassen, Almir Galvão Vieira Bitencourt, Marcos Duarte Guimaraes, Aline Cristine Barbosa Santos Cavalcante, Chiang Jeng Tyng, Mauricio Kauark Amoedo, João Paulo Kawaoka Matsushita Junior, Janio Szklaruk, Edson Marchiori, Rubens Chojniak

Open access · diamondAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Radiologia brasileira. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
2.2field-weighted citation impact, top 12% of its field
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 13 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 3 institutions in 2 countries.

Charles Edouard ZurstrassenHead of the Department of Interventional Radiology, A.C.Camargo Cancer Center, São Paulo, SP, Brazil.
Almir Galvão Vieira BitencourtStaff Physician in the Department of Imaging, A.C.Camargo Cancer Center, São Paulo, SP, Brazil.
Marcos Duarte GuimaraesStaff Physician in the Department of Imaging, A.C.Camargo Cancer Center, São Paulo, SP, Assistant Professor of Radiology, Universidade Federal do Vale do São Francisco (UNIVASF), Petrolina, PE, Brazil.
Aline Cristine Barbosa Santos CavalcanteStaff Physician in the Department of Interventional Radiology, A.C.Camargo Cancer Center, São Paulo, SP, Brazil.
Chiang Jeng TyngStaff Physician in the Department of Imaging, A.C.Camargo Cancer Center, São Paulo, SP, Brazil.
Mauricio Kauark AmoedoStaff Physician in the Department of Imaging, A.C.Camargo Cancer Center, São Paulo, SP, Brazil.
João Paulo Kawaoka Matsushita JuniorStaff Physician in the Department of Interventional Radiology, A.C.Camargo Cancer Center, São Paulo, SP, Brazil.
Janio SzklarukProfessor of Radiology, Department of Diagnostic Radiology, Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Edson MarchioriFull Professor of Radiology, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil.
Rubens ChojniakHead of the Department of Imaging, A.C.Camargo Cancer Center, São Paulo, SP, Brazil.
AC Camargo Hospital · BRThe University of Texas MD Anderson Cancer Center · USUniversidade Federal do Rio de Janeiro · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThis study aimed to compare two self-expanding stents, a nitinol stent and an elgiloy stent, both placed percutaneously, in terms of their efficacy in palliating inoperable malignant biliary obstruction. MATERIALS AND

methodsWe retrospectively investigated 99 patients with unresectable malignant biliary obstruction treated with percutaneous placement of a self-expanding metallic stent at our institution between May 2007 and January 2010. Serum bilirubin and liver enzyme levels were measured before and 30 days after stenting. For all procedures using elgiloy or nitinol stents, stent occlusion and patient survival rates were calculated using Kaplan-Meyer analysis.

resultsAll of the patients showed clinical improvement after stent placement, with no difference between the two groups. In both groups, the occlusion-free survival rate was 67% at 30 days, 37% at 90 days, 25% at 180 days, and 10% at 360 days, with no significant difference in relation to the type of stent.

conclusionThe two stents evaluated showed comparable efficacy for the percutaneous treatment of unresectable biliary malignancy, with good clinical results.

Indexed as

Biliary tract/pathologyDrainageOncologyRadiology, interventionalStents

Identifiers

PMID28428652
PMCPMC5396999
OpenAlexW2594846463

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.