Evidence map›Paper›PMID 30775843›Full record

ArticleJournal of biomedical materials research. Part B, Applied biomaterials2019

In vivo comparison of shape memory polymer foam-coated and bare metal coils for aneurysm occlusion in the rabbit elastase model.

Scott M Herting, Yonghong Ding, Anthony J Boyle, Daying Dai, Landon D Nash, Solmaz Asnafi, Daniel R Jakaitis, Collin R Johnson, Lance M Graul, Chung Yeh and 3 more

Open access · greenAbstract readComparative Study
In one paragraph

Article in Journal of biomedical materials research. Part B, Applied biomaterials, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
4.7field-weighted citation impact, top 5% 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

22 citing papers in PubMed, 43 citations in OpenAlex.

  1. Trial
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  7. Development of Biopsy Tract Sealants Based on Shape Memory Polymer Foams.Biomedical materials & devices (New York, N.Y.) · 2023
    Article
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  10. Macrophage activation in response to shape memory polymer foam-coated aneurysm occlusion devices.Journal of biomedical materials research. Part B, Applied biomaterials · 2022
    Article
  11. Review
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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

13 authors at 3 institutions in 1 country.

Scott M HertingDepartment of Biomedical Engineering, Texas A&M University, College Station, Texas.
Yonghong DingNeuroradiology Research Laboratory, Department of Radiology, Mayo Clinic, Rochester, Minnesota.
Anthony J BoyleDepartment of Biomedical Engineering, Texas A&M University, College Station, Texas.
Daying DaiNeuroradiology Research Laboratory, Department of Radiology, Mayo Clinic, Rochester, Minnesota.
Landon D NashDepartment of Biomedical Engineering, Texas A&M University, College Station, Texas.
Solmaz AsnafiNeuroradiology Research Laboratory, Department of Radiology, Mayo Clinic, Rochester, Minnesota.
Daniel R JakaitisNeuroradiology Research Laboratory, Department of Radiology, Mayo Clinic, Rochester, Minnesota.
Collin R JohnsonNeuroradiology Research Laboratory, Department of Radiology, Mayo Clinic, Rochester, Minnesota.
Lance M GraulDepartment of Biomedical Engineering, Texas A&M University, College Station, Texas.
Chung YehShape Memory Medical, Santa Clara, California.
David F KallmesNeuroradiology Research Laboratory, Department of Radiology, Mayo Clinic, Rochester, Minnesota.
Ramanathan KadirvelNeuroradiology Research Laboratory, Department of Radiology, Mayo Clinic, Rochester, Minnesota.
Duncan J MaitlandDepartment of Biomedical Engineering, Texas A&M University, College Station, Texas.
Mayo Clinic · USShape Memory Medical (United States) · USTexas A&M University · US

Funding

Shape Memory Polymer Embolic Foams for Treating Cerebrovascular AneurysmsU01NS089692 · NINDS · TEXAS ENGINEERING EXPERIMENT STATION · PI MAITLAND, DUNCAN J · 2015 to 2018
$2.5M
NINDS NIH HHS U01 NS089692NINDS NIH HHS U01-NS089692U.S. Department of Defense
6 · The paper itself

Abstract

Shape memory polymer (SMP) foam-coated coils (FCCs) are new embolic coils coated with porous SMP designed to expand for increased volume filling and enhanced healing after implantation. The purpose of this study was to compare chronic aneurysm healing after treatment with SMP FCCs to bare platinum coil (BPC) controls in the rabbit elastase aneurysm model. BPCs or SMP FCCs were implanted in rabbit elastase-induced aneurysms for follow-up at 30 days (n = 10), 90 days (n = 5), and 180 days (n = 12 for BPCs; n = 14 for SMP FCCs). Aneurysm occlusion and histologic healing, including a qualitative healing score, neointima thickness, collagen deposition, and inflammation were compared between the two groups. The mean neointima thickness was significantly greater in groups treated with SMP FCCs for all three time points. Histologic healing scores and collagen deposition quantification suggested that aneurysms treated with SMP FCCs experience more complete healing of the dome by 90 days, but the differences were not statistically significant. More progressive occlusion and recanalization were observed in aneurysms treated with SMP FCCs, but neither difference was statistically significant. Additionally, the SMP foam used in the FCCs was found to degrade faster in the rabbit elastase model than expected based on previous studies in a porcine sidewall aneurysm model. This study suggests that SMP FCCs can promote neointima formation along the aneurysm neck, and may lead to more complete healing of the dome and neck. These findings indicate potential benefits of this device for aneurysm occlusion procedures. © 2019 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 107B:2466-2475, 2019.

Indexed as

AneurysmCoated Materials, BiocompatibleSmart MaterialsAnimalsEmbolization, TherapeuticPancreatic ElastaseRabbitsCoated Materials, BiocompatiblePancreatic ElastaseSmart Materialsaneurysm healingembolization devicepolyurethane foamshape memory polymer

Identifiers

PMID30775843
PMCPMC7384583
OpenAlexW2915644950

What OpenQuestion holds

Textmetadata
LicenceTDM
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.