Evidence map›Paper›PMID 34192839›Full record

ArticleClinical endoscopy2021

Stent versus Balloon Dilation for the Treatment of Dominant Strictures in Primary Sclerosing Cholangitis: A Systematic Review and Meta-Analysis.

Marina Tucci Gammaro Baldavira Ferreira, Igor Braga Ribeiro, Diogo Turiani Hourneaux de Moura, Thomas R McCarty, Alberto Machado da Ponte Neto, Galileu Ferreira Ayala Farias, Antônio Afonso de Miranda Neto, Pedro Victor Aniz Gomes de Oliveira, Wanderley Marques Bernardo, Eduardo Guimarães Hourneaux de Moura

Open access · goldAbstract read
In one paragraph

Article in Clinical endoscopy, 2021. 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
1.3field-weighted citation impact, top 19% 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, 15 citations in OpenAlex.

  1. [Guidelines on the diagnosis and management of primary sclerosing cholangitis (2021)].Zhonghua gan zang bing za zhi = Zhonghua ganzangbing zazhi = Chinese journal of hepatology · 2022
    Guideline
  2. Contribution of Endoscopy in the Diagnosis and Treatment of Patients With Primary Sclerosing Cholangitis.Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society · 2025
    Article
  3. Endoscopic management of primary sclerosing cholangitis.Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society · 2025
    Review
  4. Primary sclerosing cholangitis.Nature reviews. Disease primers · 2025
    Review
  5. Current Therapeutics in Primary Sclerosing Cholangitis.Journal of clinical and translational hepatology · 2023
    Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. [Gastrointestinal endoscopy in the diagnosis and treatment of biliary liver disease].Zhonghua gan zang bing za zhi = Zhonghua ganzangbing zazhi = Chinese journal of hepatology · 2022
    Article
  11. Review
  12. [Progress on liver diseases in 2021].Zhonghua gan zang bing za zhi = Zhonghua ganzangbing zazhi = Chinese journal of hepatology · 2022
    Article
  13. Article
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 2 institutions in 2 countries.

Marina Tucci Gammaro Baldavira FerreiraGastrointestinal Endoscopy Unity, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo - HC/FMUSP, São Paulo, SP, Brazil.
Igor Braga RibeiroGastrointestinal Endoscopy Unity, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo - HC/FMUSP, São Paulo, SP, Brazil.
Diogo Turiani Hourneaux de MouraGastrointestinal Endoscopy Unity, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo - HC/FMUSP, São Paulo, SP, Brazil.
Thomas R McCartyDivision of Gasteoenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
Alberto Machado da Ponte NetoGastrointestinal Endoscopy Unity, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo - HC/FMUSP, São Paulo, SP, Brazil.
Galileu Ferreira Ayala FariasGastrointestinal Endoscopy Unity, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo - HC/FMUSP, São Paulo, SP, Brazil.
Antônio Afonso de Miranda NetoGastrointestinal Endoscopy Unity, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo - HC/FMUSP, São Paulo, SP, Brazil.
Pedro Victor Aniz Gomes de OliveiraGastrointestinal Endoscopy Unity, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo - HC/FMUSP, São Paulo, SP, Brazil.
Wanderley Marques BernardoGastrointestinal Endoscopy Unity, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo - HC/FMUSP, São Paulo, SP, Brazil.
Eduardo Guimarães Hourneaux de MouraGastrointestinal Endoscopy Unity, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo - HC/FMUSP, São Paulo, SP, Brazil.
Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo · BRBrigham and Women's Hospital · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

aimsThe endoscopic management of primary sclerosing cholangitis (PSC)-associated dominant strictures remains challenging. This systematic review and meta-analysis aimed to compare balloon dilation and stent placement in the treatment of dominant strictures among PSC patients.

methodsLiterature searches on MEDLINE, EMBASE, Cochrane CENTRAL and Lilacs/Bireme were performed for studies published until December 2020. Measured outcomes included clinical efficacy, stricture recurrence, cumulative recurrencefree rate, transplant rate, 5-year survival rate, and adverse events (i.e., pancreatitis, cholangitis, bleeding, perforation and death).

resultsA total of 5 studies (n=467) were included. Based on pooled analyses, there were no differences in clinical efficacy (risk difference [RD], -0.13; 95% confidence interval [CI], -0.58 to 0.33; I2=93%) or transplant rates (RD, -0.09; 95% CI, -0.19 to 0.01; I2=0%); however, the risk of occurrence of adverse events was lower with balloon dilatation than with stent placement (RD,-0.34; 95% CI, -0.45 to -0.23; I2=61%). Among the types of adverse events reported, only the rates of cholangitis/bacteremia were significantly lower in balloon dilation patients (RD, -0.19; 95% CI, -0.25 to -0.13; I2=51%).

conclusionCompared to balloon dilation, stent placement for dominant strictures in PSC appeared to have higher complication rates without significant differences in efficacy.

Indexed as

Balloon dilationDominant stricturePrimary sclerosing cholangitisStent

Identifiers

PMID34192839
PMCPMC8652153
OpenAlexW3177414435

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

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.