Evidence map›Paper›PMID 31583935›Full record

ArticleJournal of the American Heart Association2019

Biodegradable Flow Diverter for the Treatment of Intracranial Aneurysms: A Pilot Study Using a Rabbit Aneurysm Model.

Hidehisa Nishi, Akira Ishii, Isao Ono, Yu Abekura, Hiroyuki Ikeda, Daisuke Arai, Yukihiro Yamao, Masakazu Okawa, Takayuki Kikuchi, Akiyoshi Nakakura and 1 more

Open access · goldAbstract read
In one paragraph

Article in Journal of the American Heart Association, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 2 pooled it
0.9field-weighted citation impact, top 24% 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, 2 syntheses or guidelines pooled it, 18 citations in OpenAlex.

  1. Pooled it
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  6. Stroke (Hoboken, N.J.) · 2024
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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

11 authors at 1 institution in 1 country.

Hidehisa NishiDepartment of Neurosurgery Kyoto University Graduate School of Medicine Kyoto Japan.
Akira IshiiDepartment of Neurosurgery Kyoto University Graduate School of Medicine Kyoto Japan.
Isao OnoDepartment of Neurosurgery Kyoto University Graduate School of Medicine Kyoto Japan.
Yu AbekuraDepartment of Neurosurgery Kyoto University Graduate School of Medicine Kyoto Japan.
Hiroyuki IkedaDepartment of Neurosurgery Kyoto University Graduate School of Medicine Kyoto Japan.
Daisuke AraiDepartment of Neurosurgery Kyoto University Graduate School of Medicine Kyoto Japan.
Yukihiro YamaoDepartment of Neurosurgery Kyoto University Graduate School of Medicine Kyoto Japan.
Masakazu OkawaDepartment of Neurosurgery Kyoto University Graduate School of Medicine Kyoto Japan.
Takayuki KikuchiDepartment of Neurosurgery Kyoto University Graduate School of Medicine Kyoto Japan.
Akiyoshi NakakuraDepartment of Biomedical Statistics and Bioinformatics Kyoto University Graduate School of Medicine Kyoto Japan.
Susumu MiyamotoDepartment of Neurosurgery Kyoto University Graduate School of Medicine Kyoto Japan.
Kyoto University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background Herein, we report an in vivo study of a biodegradable flow diverter (BDFD) for aneurysm occlusion. Conceptually, BDFDs induce a temporal flow-diverting effect and provide a vascular scaffold for neointimal formation at the neck of the aneurysm until occlusion. This offers several potential advantages, including a reduced risk of remote ischemic complications and more treatment options in case of device failure to occlude the aneurysm. Methods and Results A BDFD consisting of 48 poly-l-lactic acid wires with radiopaque markers at both ends was prepared. An in vitro degradation test of the BDFD was performed. Thirty-six BDFDs were implanted in a rabbit aneurysm model. Digital angiography, optical coherence tomography, histopathology, and scanning electron microscopy were performed after 1, 3, and 6 months, and 1 year. The in vitro degradation test showed that the BDFD was almost degraded in 1.5 years. In the in vivo experiment, aneurysm occlusion rates were 0% at 1 month, 20% at 3 months, 50% at 6 months, and 33% at 1 year. Optical coherence tomography showed that luminal area stenosis was the highest at 3 months (16%) and decreased afterward. Immunohistochemical analysis showed that more than half of the luminal surface area was covered by endothelial cells at 1 month. Device fragmentation was not observed in any lesions. Conclusions This first in vivo study of a BDFD shows the feasibility of using BDFDs for treating aneurysms; however, a longer follow-up is required for comprehensive evaluation of the biological and mechanical behavior peculiar to biodegradable devices.

Indexed as

Absorbable ImplantsStentsAngiography, Digital SubtractionAnimalsCerebral AngiographyDisease Models, AnimalEmbolization, TherapeuticEndovascular ProceduresFemaleIntracranial AneurysmPilot ProjectsProsthesis DesignRabbitsTreatment Outcomeaneurysmbiodegradable polymerendovascular treatmentflow diverterstent

Identifiers

PMID31583935
PMCPMC6818033
OpenAlexW2977280878

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.