Evidence map›Paper›PMID 38917158›Full record

ArticlePloS one2024

Effects of shape and structure of a new 3D-printed personalized bioresorbable tracheal stent on fit and biocompatibility in a rabbit model.

Sarah Schleich, Peter Kronen, Adva Krivitsky, Nevena Paunović, Coulter Fergal Brian, Agnieszka Anna Karol, Anna Geks, Yinyin Bao, Jean-Christophe Leroux, Brigitte von Rechenberg and 2 more

Abstract read
In one paragraph

Article in PloS one, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

1 citing paper in PubMed.

  1. Review
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

12 authors.

Sarah SchleichMusculoskeletal Research Unit, Department of Molecular Mechanisms of Disease, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland.ORCID 0009-0000-8120-271X
Peter KronenMusculoskeletal Research Unit, Department of Molecular Mechanisms of Disease, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland.
Adva KrivitskyInstitute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETHZ, Zurich, Switzerland.
Nevena PaunovićInstitute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETHZ, Zurich, Switzerland.
Coulter Fergal BrianDepartment of Materials, ETHZ, Zurich, Switzerland.
Agnieszka Anna KarolMusculoskeletal Research Unit, Department of Molecular Mechanisms of Disease, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland.
Anna GeksClinic for Small Animals, Stiftung Tierärztliche Hochschule Hannover, Hanover, Germany.
Yinyin BaoInstitute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETHZ, Zurich, Switzerland.
Jean-Christophe LerouxInstitute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETHZ, Zurich, Switzerland.
Brigitte von RechenbergMusculoskeletal Research Unit, Department of Molecular Mechanisms of Disease, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland.
Daniel FranzenDepartment of Internal Medicine, Spital Uster, Zurich, Switzerland.
Karina KleinMusculoskeletal Research Unit, Department of Molecular Mechanisms of Disease, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To date, several types of airway stents are available to treat central airway obstructions. However, the ideal stent that can overcome anatomical, mechanical and microbiological issues is still awaited. In addition, therapeutic effect and self-elimination of these stents are desirable properties, which pose an additional challenge for development and manufacturing. We aimed to create a prototype bioresorbable tracheal stent with acceptable clinical tolerance, fit and biocompatibility, that could be tested in a rabbit model and in the future be further optimized to enable drug-elution and ensure local therapeutic effect. Twenty-one New Zealand White Rabbits received five different types of bioresorbable tracheal stents, 3D-printed from poly(D,L-lactide-co-ε-caprolactone) metacrylates. Various configurations were tested for their functionality and improved until the best performing prototype could undergo detailed in vivo assessment, regarding clinical tolerance, migration and biocompatibility. Previously tested types of 3D printed stents in our preliminary study required improvement due to several problems, mainly related to breakage, unreliable stability and/or migration within the trachea. Abandoned or refined pre-prototypes were not analyzed in a comparative way. The final best performing prototype stent (GSP2 (Group Stent Prototype 2), n = 8) allowed a transoral application mode and showed good clinical tolerance, minimal migration and acceptable biocompatibility. The good performance of stent type GSP2 was attributed to the helix-shaped surface structure, which was therefore regarded as a key-feature. This prototype stent offers the possibility for further research in a large animal model to confirm the promising data and assess other properties such as bioresorption.

Indexed as

Absorbable ImplantsPrinting, Three-DimensionalStentsTracheaAnimalsBiocompatible MaterialsMaterials TestingPolyestersProsthesis DesignRabbitsBiocompatible MaterialsPolyesters

Identifiers

PMID38917158
PMCPMC11198857

What OpenQuestion holds

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LicenceCC BY
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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.